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(2) 98. T.. Miss Tomoko and in the丘eld ; Messrs. deserue. too. the. SHIKAMA,. ARAKI. who. no. Toshiro. Neogene. Younger are. groups. their. and classification different tolerably. phic. 1962). Shimada. of. the. according between the. City. alternations. to. of. sandstone. conglomerate,. alternations. distributed. sandy of N. area,. mudstone. planktonic in age. 15-19). These. two. in the. overlie. Table. 1.. contains. consists. mainly. its lower. part.. Town. is Pliocene the. unconformably sandstone,. sequence. R.. (after. the. Tsucbi,. of. half. of. sandstone, to. the. (BLOW's. N. in age.. (BLOW's. 19-21). following mudstone,. tu庁aceous. Kakegawa. basements. district. 1961).. I.Makiyama(1950) Age. E.UJiie(1958). R.Tsuchi(1961). ･J.D4akiyama&. T.Saka7nOtO(1957) ど. Ogasagroup. 4I. Ogasayamagravels. ogasayamagravels. B ■I. 遵. SogagrouP. Sogafoエーmation. i. AburayamaSand. Dl. コ q) ⊂ Ql. ○ ” bD. Ei3ikatasilt Nangoalternations. upperflorinouchialt･ 工ozumituff. 也 き. Tennosand. 5:. bO.. DalnlChlSand. d. 也). ,当 (8 t<. コ (⊃ h bO く8. a. 0. U. Aburayamasand ロィ. d. bD a). -Middle&Lower'. .当 d H. Horinouchi.al上.. tl .⊂ ■l 4} ○. 王. 也 FIP4 dj b80 のbO. :cき. r葦｢を 王LL. silt TTEagimacorlglome-. c6日. EL =〉. 32苛. Kiriyama&Tamari. OlderNeogene:Eu. Tennosiltysand. コ ○ F1 bD. Nobecorlglomerate. a. き. Daini.chisand. d. bD. Dainichisa_nd. ,5i (d E<. Eorinouchialt.. =ozumituff. 0. OrnOuCa. Eihilt. Eiriyamasilt. a hP. (づコ bDO (8h. rami&. Tamari&Oyorisilt Sagaraalternations Tokigayaalter-. =ituff 92:uTn Tamarisilt Kiriya,masilt. merate. ∽bO. ratell. D.. EijikatasiltL. Hagimaconglo-. T一区amiyashirocongl･†1. ed hD-. o3コ boo dh. ITEagimacong1･tT. の叫 nations. Saigogroups▲orMikas. group(凹egamilimes七orle)paleogene;SetogawagrOup. study. late Miocene. Neogene. the. of. consists. eastern. According. is probably. group. Tokigaya Kakegawa. Ftltamata, in. order.. rhythmical. named The. mudstone half of it, conglomerate,. group. Stratigraphic. to. and. Sagara. are. stratigra-. of. conglomerate.. Haibara. western. (conglomerate,. group. and. in ascending. Kakegawa. the. The. of. as. Peninsula,. of sandstone. 1.. The area. regarded unconformity by H･ UJIIE (1958, unconf9rmicy distributed from Yui, group, south. of. of. Kakegawa. and. Kakega☆a. of the in Table. shown. Sagara. (1961),. and mtldstone, foraminifera, the. groups. Kurami. the. and. and. partly. north. ways.. Prefecture.. was. groups. mudstone,. and. by R. TsucHI alternations distributed from the group,. the. authors. Omaezaki. the. Sbizuoka. of formation as. Sagara. of the. part. each. two. the writer FuNAfIASHI. in various. cooporotion. consisting. of to. to. Outline. western. (1950),and as TsucliI (1961). The. R.. and. in. nomination. relationship. J･ MAKIYAMA. by. sediments. distributed. in rendering help Masatoshi and. pains. Stratigraphical The. YosHIMOTO. KAMINISHI. for. gratitude. Y.. and. spared. Seiji YuI,. writer's. ETO. T.. agrOu. p,6igawa. sandstone. :.
(3) Bentbonic. anJd. stone. muddy. with. Foraminifera. calcareous. and. mudstone). ; the. the. Setogawa. group. Oigawa. (alternations. of shale, Lalternations ∼be the Mikasa called the Pleistocene Soga The. formation as. group,. Just. (or formation). group. and. shale, former. and. is referred. Tamari. Formation. are. to. the. can. covered. with Ogasa. (or. gravel. crops. and. together. two. in. out. ; and. shale. chert,. mentioned Ogasayama. and. sandstone. limestone). and. The. in question. now. inlier,. an. sandstone). groups. (breccia,. group. mudstone. sandstone. Those. group.. Tamari. of. and. siltstone. .group). Kakegawa. (sandstone,. group. 99. Formation. Saigo. ; the. nodules). <. Tamari. of the. area. the. uppermost. of. Of the. part. group.. ･Sagara. The. formation was丘rst of Tamari from distri･buted Kakegawa. name. 一The formation, ￣has drawn times. by. attention. much. ･1enticular, but. the. most. It is presumed. ･Siltstone.. of it are be more. to. Tamari. is. formation. ･and. is. uchi. formation. 1one).. inclined. At. southward.. Kakegawa. the. of. boundary. the. 800m. than. and. Tamari. the. trend by. and. muds-. formations,. Horinouchi. and. Horino-. the. sandstone. of. exact. of the of E-W. structure. overlapped. and. the. although. structural. general. some-. homogeneous. and. geologlCal. (alternations. group. formation discontinuous. are. thick. detailed. the. between. The. 1928･. (Fig･ 1),. Kikugawa. of. massive. of. clear, it has the It is surrounded. not. east. which. composed. Though. is still unknown.. thickness. beds. in. MAⅠ(IYAMA. distribution･. sandstone. prrts. the. to. its peculiar. thin丘ne-grained. carries. by. glVen. the. to between is very d推cult two formations the relationship ノStratigraphic because litho-facies and of basal determine similar non-existence of their two are As R. TsucfII (Table 1), there main (1961) explained へCOnglomerate. between two formations･ the on the interpretations stratigraphic relationship to formation be the Tamari T. SAITO H. UJIIE (1958) and (1960) regarded. formation. Horinouchi. the. foraminifera planktonic species The constituent of. mudstone bles that. of benthonic Both the. mining. can. be. beds. found of. pointed in. the. the. also. the. both. and. the. have. Tamari. Horinouchi. the. formation.. and. the. been. found. assemblages of. tuft-layers. formation. of sandstone individual. The suddenly. two. the. in the thick. cannot. aspect･. per. used. in trhe Tamari of. weight. unit. is very. for deterbecause. formations. two. the. formation･ formations. two. Tsuclil. R･ environments･ H･orinouchi formation. medium-丘ne disappear as. grained they. the. resem-. formation be. of the. from. mudstone. number. Horinouchi. and. welトallied. assemblage. between not. a. foraminiferal. foraminifera. foraminiferal. resemblance. that. the. formation. have. in the. relationship. Of the. out. but. planktonic. time-indicators. the. tufflayers. some. Tamari. formations. foraminifera. planktonic. by. seen. alternations. formation,. Tamari. in. benthonic. the. because. formation. are. Horinoucbi. aspect. explained. i(1961)also. of. benthonic. as. analoglC. be. and. of. stratigraphic. -foraminifera The. the. of the. small.. Horinouchi. the. with. ･contemporaneous. cannot. sandstone. approach. the.
(4) loo. T.. S臼IKAMA,. T.. ETO. Y.. and. YosH.IMOTO. ∼>3Jo. 包. E く. 三 :亡 I/I. ∈. 弘. A. ≡ト. o;o] J. G喜 ●. く ユ亡. ● ●. ○ ;r. ‥./. 妻 <. U. ● ●. (ヱ) ::⊃ ⊃亡 ゞ. /. ● ●. ●. <. SD. ト I 0 :亡. ∽. q)-. 1: =. Sss). ●. く匂, U (⊃. ■. 1〃. ∼. ▼一寸. コJ Q) ▼■■■■■■1. CL. ∈ (匂 (凸. て‡ 白 く方. ii. Eh (弓. ≡ /Tノ TIIIII. SS 丈. cd U bO 0 -. 王. O ”. =1 0. u T+ コ: < (♪. /イ′. ._bQ. エ. h. l/】. y rJ. .土. i. ト. ニ⊃ α:. /′:. < i. S1 2 O /. 要. 局 .§ E. 点. m貞. A. 吉 山. 蔓＼品 □田.
(5) Bentbonic. Foraminifera. Formation. Tamari. the. of. o 2.. Fig. tbe. Outcrop. lower. (the of. alternation. of. ■■Tamari formation SAITO. tention. the. of. at. -nations in. south. Near. are. ･formation. formably, .strikes right. rather. At. formation.. angle. a. the. with. each. than. Many formation. ･Tamari posed. of. they. in. is. of. and. N80oW. be. Hotta-. the in. dips. N20oⅥJ strike. are. not. seen. ata. alternations. of. tuffaceous. sandstone. and. cliff･. (or Shiraiwa-),. so. the. Tamari. locality. mudstone,. 5oS. formation. Horinouchi. in the. localities,. with. a. strike and. dip. any of the H･ UJIIE included Narutaki, south which of in his map, lozlユmi the Nishihirao tuffs and. tuffs. to. and at. nearly. 22oS. and. of the. tufflayers. cross. N80oE. strike. con-. overlapped. indicates. indicates. Horinouchi. But. they. alternation. whereas. be. Horinouchi. the. alternation･. different. and. formation･. part to. rice. Horino-. oftbe. sandstone. seems. and. between between. Tamari of the. southern. fo'r-. 2. begide. cliffs. beds. beds. forlnation. no. two. E-W. the Fig.. relationship At. ex-. an. Line. the. the. (the Horinouchi. in. approach. Horinouchi. very. has. and. the. an. between. Main. sandstone. formation. the are. 15oW the dip, while 爪and Loc･ 25 SWof dip at a cliff, 750m SW 750m of Tagaya). ･Moreover, formation, in the Tamari seen ..are formation.. as. by. J. MAKIYAMA. Tokaido. obscure.. of. Tamari by. other. Nishihirao. its silty. Tagaya,. Ii. UJIIE. formation facies. stratlgraPhic. is. those. Tamari. lozumトand. the. formations,. two. formations. two. overlies. hand. other. Tamari. of the. side. south. SSW. the. glance,. the. the. with. Town,. transitionally,. or. of. thin. two. On. formations. the. of. formation. predominant. facies distinct rock. clin°-uncomformity Kikugawa Town as shown. disappear. suddenly. boundary. the. the. 520m. and. alternation. (5-].Oc皿). observed. Horinouchi. formation. and. Horinouchi. becomes. that. group. Kikugawa. and. and. 750m. -uchi. On. formation. mudstone. the. of. Nishimata,. near. cliff. City. Tamari. ･丘elds,. Sagara. localities.. other. Kakegawa the. a. showing. Tamari. thickness The. part). and. siltstone. contrast. YosI与IMOTO. trend.. ･structural. massive. the. uppermost. 1 cm. of. environments. sedimentary TsucliI (1961) mentioned. R.. r(1950) and. sandstone. Kikugawa, the. of. formation.. its. explained of. ･･differences. Tamari. and. siltstone. (the upper (3-5cm). sandstone. the. u.ncomformably. T.. of. Nishimata,. of. between. formation. W. 5m. neighbourhood. beds. with. part). florinouchi. the. of. ･and. at. relationship. stratigrapbic. i.01. they. are. com-. shoud.
(6) 102. be. included. the. eastern. tant. in the half. T.. SHIKAMA,. T.. Kakegawa. the. cliff showing. is found.. At. acliffin. of. alternations. The. and. loo-20oW. strike and 8o-20o strike and dip strike and 18oS. S dip. E-W. between. contrast. between. (at. dip,. (at a. north. The. former. half. of the. distributed. the. sbowing the. witb. of. but. siltstone. Station. of. Loc.. peeps. out. in. 16,. point. Tamari. the. The. just. Mikasa. and. as. the. above. group. clifFfound-. not. of. consist. Nishimata. with-. (NNEァ. beds･. sandstone. The･. Mikasa. of. groupTl. coarse. of very. san-. between. surface. basal. of. consists. is. distributed. and. unconformity. western-I. important. area. inlier, consists. an. westwardL,･. In the. an. rock. two8. alterna-. formation. basement. tod. At. to. distinctly. thin. very the. where. formation from. material. formation. 7), contain. Chokaiji,. near. of. important. dip.. portions marglnal Station) of Kakegawa. Loc･. near. east of Kumomyo) Kikugawa Station)･-. east. of the. the. formation･. Horinouchi. Tamari. the. of. approxi-･. Tamari. the. formations. Most. sandstone;. neighborhoods. formation,. two. the. (Loc. 1, NE. lshigami. Kikugawa. Tamari. between. and. of. indicates. from. 15-30oSW. Tamari. the. of. City,. (5-. mudstone. formation?･. two. the. formation. strike. lshigami･. of. exception. as. dstone.. area. relationship. homogeneous. it, such. Tamari. the. of is very. trends. structural. formationsJ Horinouchil. beds. the. while. impor-. an. two. and. cliff, 750m. small. cliff, 500m. a. distinct. two. the unconformably indicates NIOo-25oW. overlaps. the. Nishimata,. of. between the stratigraphic relationship consider NE large cli恥south of Kakegawa of lshigami, tion. formation,. of Chokaiji, inthe cliff, NW Hotta, formation the Horinouchi. N20o-30oW. N80oE. and. Tamari. of the. area. I=¥. formation)･. (3-5cm thickness) sandstone Tamari the formation with. of. 10 cm) overlies uncomformably 1cm thick (Fig. 2). At every. matelly indicates. Hosoya. relationship W valley, 500m. small. a. Kumomyo,. YosHIMOTO. stratlgraphic. formation. chokaiji,. Y.. and. (J. MAKIYAMA's. group. distributed. the. of. ETO. the. and. conglomerate. shell-. fragments･. The. Sagara. the. formation. took. already. 25 parts the. Samp且e. Localities. During. 1969-70 in. of. are. not. but so. they. good･. place;. the. hence. the. of. of. thhe. the. Tamari-. between. them. samples. from･-. course,. boundary. part. The dark. as. grey. molluscs, are. The. Study. his丘eld. formation,. Tamari. of. such. before. of. in. Yos甘IMOTO. the. are. samples. Macrofossils, formation. Y･. formation.. the. folded. deposition. StruCture･. overlapplng. localities. uppermost. during. inlier,. 光ethods a.. the. was. and. an. as. to. correlated. probably. (Pliocene). existed an. is. (late Miocene). group formation. Horinouchi. shows. formation. Tamari. rarely sample. area. so. siltstone. to. is. of. with. scattered be. found,. Loc･. 16. to. as. researched. are. works cover. nearly in. shown. the. exception. in. almost. and is. collected. states. of very. Fig･ of. every of. coarse. their. all important Most 1･ one. part. of. (Loc･ 16)･of. the-. preservation. sandstone･. The,.
(7) J菅Q/. Localities. 123斗56789101112131勾1516171e19202122232ち25. Species. sigmoitina8eh乙uTUbeI･ger'i. __.J-._.__-一一--JIIrJ-I-･-･J--. Denea乙ina8ub80Zu舌a. _Ill_--. Bo乙ivini舌aquadpiヱa七e2'a. i.∴:;..-i･. Bo乙ivinar70bu8七a. BuLiminaaeu乙ea古a. B.cf.infLa士a. ___II-I_I___I_I_ _t■∼_I__I_I_-＋･--･-■■-･. B･mapginai;a. I_--___--. a.noJ7,maen8も8. B.cf.stpiai:a. Uviger･inacr'a86icoB士a士a. ==:=I:∼.. u.cf.hooi8i. i/.8ubstpiata. t暮_. Epi8tOn!iTieuaJaPOniea. pseudoeponide6JaPOnicus. _______A___l一-I. AmTWniacf･papiZto8a. _∼■_I_. Epotlide8haidingepii a.uTT2bonatu8. )__I. ___._.__JJ■-I-__--__--I_I■. Cibieide8aたnepianus. _■一,_-I-■■■l_-..--∼-----. Sti乙osto偶g乙乙aZepidu乙a. _____l________________…_ I.,_I______I___■1_. ca88iduunaasanoi c.乙aeviga七a. _■____I._-_-___■■ ■■I-_一一_∼.__■lIJI-_____.--∼__. c.8ubg乙obo8a. C･sp･. Honionnieobar,ense. puLLeniabuL乙oide8. __I_J_I__一‥___…l_. Gyr･oidinaor,bieu乙apis. --___■＋{___-HJ■_t----■■J一-. .,____.I-_.”.___-._--_-_--. Fig.. 3.. Frequency. distributior1. 0f. the. importar)t. bentbonic. forarrlinifera. of. the. Tamari. formation･.
(8) Benthonic. localities. sample ち.. are. the. Tamari. weight. taken. in. sieve.. After. the. into. aliquotes. Foraminifera. in. shown. of. Formation. 103. 1.. Fig.. Preparation The. with. through. dried,. were. of 40g. sample. water. they. in dry 200 mesh divided. a were. 64. tests. sample. the. individual. were. After. up･. picked. number,. foraminifera. ratio. the. of. their. the. washed sieve. mesh. dividing.. quarter. identi丘cation,. number. (benthonic十planktonic) determine. to. possible. also. by. was. in the. In. up until the total number of benthonic individuals, is indispensable for which foraminifera included in all planktonic. were some all aliquots picked foraminifera 200 more than reached Simultaneously, Statistical analysis.. the. locality,. each remnants. of. and. writers. calculated to. planktonic. Fragments. names. scienti丘c. each. on.. so. the. that. treated. were. the. as. total im-. were. miscellaneous. species.. Distribution a.. Planktonic. Foraminifera. Planktonic. foraminifera. though. identi丘ed･. not. (Table. of sample. is less. weight to. ratio. b･. total. Benthonic. The. total. as. UcHIO,. and. in the. in Table. 2･. EPonides. Pseudoeponides. (ScEWAGER). tera. butions. of. By. important. the. are. formation, facies. as. and Tamari. sicostata. follows:. Nonion. of the. Cassidulina. assemblage. cent.. almost. nicobarense-Uuigerina. in the. western. of. in Fig.. Four. it, and. quadrila-. frequency. distri-. 3. four. distinguished. are. aculeata-Cassidulina facies. The. in. assemblage. lower. assen1-. part. in the. asanoi-Uvigerina. Pseudoeponides. chara-. vertically. characteristic the. cf.. Gyroidina. Bolivinita. and. assemblage cf. hootsi. U. CusHMAN,. foraminifera,. (Fig. 4).. robusta. ScHWAGER,. nicobarense. shown. subassemblages. formation. Bulimina. are. SIL-. schlumbergeri. (ScHWAGER),. locality.. benthonic. abundant 丘ve. Nonion. (D'ORBIGNY) every. Pseudoeponides. cf. injiata SEGUENZA. crassicostata. lepidulla. genera. Boliuina. are. cf. hootsi RANKIN.. UcHIO,. Sigmoilina. UcHIO,. 61. species. Bulimina. Also. foraminifera. Bolivina. formation,. Their. 8.8 per. to. indicate. asanoi. CusHMAN,. bulloides at. the. of. cteristic assemblages laterally in the. 77.3. Uuigerina. and. Stilostomella. benthonic･. occurence. and. blages. found. are. is. dominant. most. japonicus. Pullenia. D'ORBIGNY,. orbicularis. sample,. 5 individuals.. of. formation. Uuigerina. (REUSS),. umbonatus. Tamari. D'ORBIGNY. BRADY,. robusta. hootsL'RANKIN,. each. per number unit weight foraminifera per unit. planktonic minimum. The. Nonion. Boliuina. vESTRI,. to. Assemblages. nicobarense ScHWAGER･ crassicostata. Uuigerina. from. counted. (benthonic十planktonic). BRADY, Bulimina robusta aculeata The dominant are other species. japonicus. the. with. localities. shown. and. of. numbe;. foraminifera. 25. up. transferred. were. 286 specimens,. from. 148 species. picked. they. Foraminiferal. Samples and. And. 2).. than. the. were. Foramimifera. of. of. the. eastern cras-. japonicus.
(9) T.. 104. SIiIKAMA,. ETO. T.. Y.. and. YosHIMOTO. =OZUM工. tiOTTA. m. ['･;o. Pseudoeporlides. 3aponicus. CfrOEArJ=. Bo]_1vlna. robusta N且RUTAE=. Bulimina. Uvigerina. -. ち己. aculeata. Cassidulina. -. asanoi. hToniorl. crassicostat,a. 一口vigerlna. nicobarerlSe bootsl. cf.. haidingerii. Eporlides. Sp.. -Cassidtllirla. Bolivirlita. quadrilatera. japonic早 1epldula. NISEIMATA. Bollvlna. robusta. ISHIGAM=. .NAEAMTIRA. 4･. Fig･. Benthonic. foraminiferal. in. assemblag?. the. upper. dingerii-Cassidulina Boliuina. robusta-. vertical and. 1.. and per. robusta part. the. of. relative (Loc･ 2). The. represented. assemblage, by. crassicostata Pseudoeponides. of. are. also. is. found. in rather. relatively the. of. assem-. occurence. BoliL,i-na. of from. ranges. 42. of. of Locs.. 16.1. 69. and. B. aculeata. striata,. karrerianum. 27.6. to. species,. Cas-. and. Uuigerina. and. Bolivina. frequency.. robusta,. (Loc. 6). genera. 1,. tosaensLS,. cf.. japonicus, Epon･ides. laevigala, CassLTdulina C. umbonatus, Pseudononion japom'cum, Gyro,L'dina niPPonica. striata. barense-Uvigerina. the. populations. of. composed. high. a. nicobarense, are found orbicularis commonly. Anomalina balthica Loxostomum and. eastern. composed. Bulimina. G･. The. beside. occupy. description. robusta, balthica, Loxostomum. Nonion. Bulimina. hai-. :. abundant individuals. Boliuina. Anomalina. asanoi･. an. assemblage. by. mainly. Epon,ides. assemblages. assemblages. Stilo-. of. Assemblage. frequency. cent. two. Detailed. follows. as. qurdrilatera,. The. japonicus. ranges. are. subassemblages. 6, is characterized. the. globosa,. and. lower. and. sidulina. geographical. Bolivinita. those. are. subassemblages. robusta･. Pseudoepom'des. and. Boliuina. The 2, 4. sp･ and. Five. japonica,. BoIL'vina. subassemblages. and. formation､. it･. of. lePidula, EPistominella. stomella. wide blages. part. assemblages. Tamari. the. of. part. and of cf.. Epistominella the. lepL'dula. karrerianum. are. japonica. are. assemblage,. and. there. is. in. rich. characteristic characteristic. also. transitionally. assemblage. hootsi. Stilostomella. changes is. no. to. and 6;. Loc.. of. Loc.. 2,. of. Loc.. 4.. Nonion. restricted. sub-. nico-. boundary.
(10) Benthonic. between the. the. two. Foraminifera. species from. of the. ratio. number. than. value. 2.. 546. to. of. other. from. range. planktonic to. the. 50.0 per. to. more. LCOntains. asanoiper. is. which. unit The. 53.. to. (plank-. foraminifera. total. cent. 20. less. or. aculeata-Cassidulina benthonic specimens. total. specimen. 8.8. from. of the. Bulimina. the. 105. Formation. assemblage. The. and. Tamari. Bulimina. upper. planktonic. ranges. those. this. assemblage.. 30. tonic＋benthonic). the. of. crassicostata. ･Uvigerina range weight. Also. assemblages.. constituent. of the. lower. relatively. assemblages.. aculeatata-Cassidulina. asanoi-Uuigerina. Asserrl_-. crassicostata. blage The. western. ll, 12, 13, 20. Trifarina. cies,. nojLmaenSis dant. 21,. and. the. of. assemblage,. asanoi. CassidulL'na. and. The. occurrence･. laeuigata. frequency less. 21.6. than. cf.. is. injiata. quadurlatera, japonicus, Stilostomella. 1enia. are. apertula. is characteristic. -angulosa. cf. injlata. B.. and. pulation. of. 21. are. weight. from. (Loc. 12). total. species. 3. This. assemblage,. subsoluta,. relatively. high. less. from. a. occnpy. 50. genera. than. 21.7. Boliuina. 23.8. respectively. per. ratio. 114 C.. robusta. Especially,. cent. in each. 77.3. per. assemblage･. hootsi. the. assem-. per. unit. ranges. planktonic of. to. planktonic. (Loc. 5).. Locs.. of. U7)igerina. by. This. range.. assem-. U･. crassicostata, B.. aculeata,. and. 3, 7, 8, 9, 14, 15, or. nicobarense. lobatulus 3. 15. are are. dominant. Den-. margLnata, also. subs-. found. in. occu-. nicobarense. occupleS species. less than is. a. by. characterized. Nonion. cf. hootsi The. angulosa. Assemblage. PaPillosa.. Uuigerina. po-. relationship. cent. Uuigerina. cf.. the. and. between. geographical. Locs.. Ammom'a and. to. Cibicides. and. no]Lmaen-. and. of. number. BulimL'na. asanoi,. 20,. specimens. the. populations Nonion either. species.. TrifarL'na. cf･. that. and. the. and. rather cf. hootsL, Puland. assemblage. the. of. hootsi. vertical. and. of. the. per. is. BulimL'na 13,. asanoi. 38.0. than. above.. 12,. and. (Loc. 13). (Loc. 121. of. wide. frequency∴. between. cf.. by. laeuLgata,. occurrence. abundant. (Loc. 5).. The. composed. Cassidulina. talina. 135. relative. subglobosa. nicobarense-Uuigerina number of benthonic. total to. 19, is dominated. hootsL, Which LCf. blage indicates .triata,. The. nicobarense-Uuigerina. 16, 17, 18 and. cent. 286. ranges. Nonion. Nonion. The. injlata, TrifarL'na. cf.. is transitional,. 18 (Loc. 12) to. Bulimina. and. nicobarense Uuigerina. laeuLgata,. it. species,. less. mentioned. of. boundary. eastern. transitional.. ranges. the. the. and. 5. from. per. by. characterized. The m'cobarense. Bolわノina robusta assemblage. assemblage blage is also. pies. characteristic. Nonion. the. lan. also. is. Locs.. abun-. CassidulL'na. cent,. lepidula, Cassidulina. with species Loc. 5, Cassidulina. of. are. cf.. 80. range･. tosaensLS,. the. associated. of this. and. Nonion. and. Bolivina. PseudoePonides. lower. genera. crassicostata. found. Boliuinita. abundant.. and. 39. Uvigerina. and. cent. Bulimina. Also. ･cent.. per. speassociated lucidus, BulimL'na. Characteristics. a and wide vertical relatively geographical is less BulL'mina 27,8 per than aculeata of. occupleS. sis. The. LentL'culina. major. indicates. assemblage. occurrence. crassL'costata.. are. of Locs･ 5, of Bulimina. populations. abundant. bifromis,. Rectoboliuina. angulosa,. an. Uuigerina. and. of. composed. by. is represented. Cassidulina. aculeata,. is. part. 27･5. Bulimina.
(11) 106. T.. in. aculeata. Loc･. drilatera,. 18, occupying. by. characterized Bulimina cf.. the. Gaudryna of. Stilostomella. assemblage,. is also. which. Epistominella. japonica, subsoluta. Cibicides Bolivinita quaakneriaTtuS, Cassidulina are marginata and asanoi. Bulimina. Sigmoilina. of this assemblage. lucidus, sp･, Lenticulina part. Dentalina. spu. YosfnMOTO. of the. cent. per. bulloides,. ishikiensiS, lower. Y.. and. of Dentalina. Pullenia. the. ETO. 20･3. occurrence. inPata,. characteristic. T.. SHIKAMA,. Fissulina. schlumbergm,. Oolina. marginata,. Pseudoeponides a, catenulata, Trifarina angulosa, japonicus, EIphidium sp. Eponides Cibicides lobatulus, Stilostomella hyugaensis, S. lepidula, umbonatus, cf. Cassidulina C. subglobosa, Pullenia bulloides, Gyroidina asanoi, nipponica, G. Anomalina. and. orbicularis relationships. is. between. to. specimens. 4.. japonicus. jaPonicus. specimens of. ratio. from. ranges. assemblage･. per. the. unit. number. ll.6. the. whereas. weight. of. (Loc. 19). to. plank70 per. Bulimina. umbonatus,. Especially,. Pseudoeponides. assemblage, is not. in. and. 71. Loc･. 24, the. cent. of the. any. most. abundant. Lagena. subsoluta, Bulimina. B.. aculeata,. hootsi,. Eponides. Stilostomella. tulus,. bulloides. the. Nonion. L.. B.. cf.. relatively. 8. shown. clearly The. (Loc.. total. 22). (Loc. 22). to. the. foraminifera. total. 75. (Loc. 24).. by. to. 46. (Loc. 25). is. are. many. hootsi-. species species. and. of benthonic. (Loc. The rather. 25), while ratio high,. of the. Bulimina boundary of. specimens. that. 13 per 22. (oc-. Dentalina. C. lobaPullenia. nicobarense,. the. of are. assemblage. found. in both. aculeata-Cassidulina between･ them. unit. of planktonic. number from ranging. Only. h. robusta, U. crassicostata,. abundant per. 25.. in Loc.. aknerianus,. which. genera. and. schlumbergeri, Bolivina. Uvigerina. common. the assemblages, the distinct marking. number. 38. rich. quadrilatera,. nojLmaenSLS,. contains. crassicostata. frequency. contains. very. in the. species. high. a. such. E.. Orbicularis. nicobarense-Uuigerina. jaPonicus.. in abundance.. cf. injlata,. characteristic of Locs. 23 Uuigerina hootsi, cf. occupleS robusta Sigmoilina. and. laeuigata. assemblage. is. 24. B.. Cibicides umbonatus, laevigata, Nonion lepidula, Cassidulina. assemblage. asanoi-Uuigerina. of it, and. 23,. robusta,. important. most. assemblage). Patuleuta, Bulivinita. margmata,. 22,. is. haidingerii,. Gyroidi7W. and. Although. the cent. species, Boliuina whereas. clavata,. Bolivina. The. umbonatus. assembl･age, 37.5 per cent of the. cupying. is. 22.6 per. Locs.. of. Cassidulina. and. assemblage.. Eponides. species.. aculeata. than. other. populations. japonicus,. japonicus. less. occupying. found. the. of. Pseudoeponides. contains. and Eponides. Assemblage. is composed. assemblage. 25,. cent. foraminifera. the total. The. asI. crassicostata. discerned,. PseudoePonides. and. of benthonic. Pseudoeponides. This. from. assemblage. distinctly､. not. (Boliuina. assemblages. (Loc. 8).. .cent. cf.. this. other. The. species.. asanoi-Uvigerina. are. and. constituent. the. aculeata-Cassidulina. total number clear･ 6 (Loc. 3) to 66 (Loc. 18).. from. tonic. common. and. The. relatively. ranges. are. assemblage. transitional. are. semblages) boundary. the. Bilimina. and. robusta-. balthica. between. is,. Pseudoeponides. weight ranges. of planktonic 58.5 (Loc. 23). ranges from. 14. to√ species to 64.3 per.
(12) Foraminifera. Bentbonic. 5.. Stilostomella. This. is. genera. those. resemble planktonic of. balthica. Cassidulina. in low. Bolivina. of. to. specimen. The. and Uuigerina. C･ laevLgata,. asanoi,. frequency･. Although. 38 species･. and. robusta,. species. C･ subglobosa. subassemblage･ of the number. ratio. robusta assemblage, is the total foraminifera. 23. contains. the. of. the. the. it-. crassicos-. subassembl･age. the constituent. lePi-. furthermore･. of the subassemblage, Bulimina margmata,. cent. robustay-. Stilostomella. of. occurence. Bolivina. of. end. western. abundant. an. karrerianum,. Anomalina. and. by. Boliuina. with. in the. situated. characterized 23.5 per occupleS. Loxostomum. tata,. being. is. associated. lOア. Formation. lepidula Subassemblage. subassemblage,. assemblage, dula which. Tamari. the. of. (8･8. smallest. of. cent),. per. all assemblages. 6.. Epistominella. This. the. cf. hootsi. Boliuina. robusta-. subassemblage. japonica. minella. is. blage, B.. and. and. is characterized. robusta,. common. 7. This. cf.. currence,. also. 55. and. per. oolina. in. GyroidL'na. C･ subglobosa,. lower. the. part. Nom'on. of. by. a. benthonic 8. This. oc-. abundant. the. cent. of. catenulata,. the. and cf.. hootsi. the. in. found. also. are. a. relatively. Bulimina. robusta,. nicobarense,. Pullenia. common. are. and. Eponides. bulloides,. frequency. (less. sp.,. Fissulina. margmata,. B.. margmata,. species. constituent. planktonic. Gyroidina. per. specimens. haidingerii-Cassidulina. subassemblage,. being. situated. of unit sp･. cf.. strL'ata,. Cibicides CI. asanoi, and. orbicularis the. B･ cf･ injlata,. mayginata･ high. DentalL'na. subassemblage)･. Bolivina. Bulimina. a5Semblage･. of Nonion. those. resemble. species. constituent. umbonatus, EIphL'diu7,1 Sp･, Eponides crassicostata, S. Cassidulina lePidula, stilostomella cf. hyugae′nsL's,. elegans. n軸onica. nicobarense-. relative. gerina. NonL･on. lepi-. Stilostomella. umbonatus,. is characterized. assemblage,. species. nicoba,ense-Uuigerina Nonion nicobarense 18.9. cf･ striata, jaPonicus, Ammonia. 17･4 per less than cent of occupying quadrL'latera, Cibicides bulloL'des and ishikiensLS, Pullem'a akne､Gaudryna 32 contains The subassemblage its species･ characteristic. subassemblage･. genera. Fis-. Boliuinita. of. are. striata sp･･. Subassemblage. situated. hootsi. Dentalina. subassemblage･. quadrilatera. subassemblage,. um.gerina. rianus. of. species Bolivinita. the. subassem-. inj7ata･ B･. cf･. Pseudoeponides. angulata, cf. beccarii,. A. ketienziensis C. laevigata, dula, S. sp., Cassidulina asanoi,. of Epistothe. of. sp･,. of the. assemblages･. cf･ hootsi･ Bulimina. BulL'mina. Eponides. those. with. cent. per. Nodosaria. schlumbergeri,. Though. occurrence. abundant. Uvig-'na. Boliuinita marginata, quadrilatera, sulina uuigerina Trifarina angulosa, crassicostata,. are. analogous. 17･1. nicobarense-. species･. cf･ hootsi. an. rather. less than. Bolivina. with. Sigmoilina. aculeata.. the. occtlpying. which,. associated. by. 54. and. are. subassemblage of the Nonion nicobarense-Uuigerina. Nonion. and. robusta-. 32 genera. indicating. assemblages,. species. constituent. Bolivina. over. extends. subassemblage. uuL'gerina. Subassemblage. japonica. are. both. Uui-. aknerianus, Subglobosa, Hoeglundina The. subassemblage･. weights. than. total. in Loc･. poor. 8･. Subassembl■age in. the. eastern. part. of. Noion. nico-.
(13) 1･08. T.. cf･ hootsi. ･barense-Uuigerina occurrence. Eponides. of. 60. than. cent. per. indicating. 17. semblages. the. to. fact. the. structure. merely. of. species.. Amphycoryna. Nonion. massive. hootsi. cf･. is. coarse. of. Although. low. cf･ are. are. characteristic cf. beccaru, species. subassemblage. Nonion. of. the. samples. a. of this. is found. sp･. that. constituent. species. as-. due. is. and. Ammonia. species. Cassidulina. assemblage,. all. unconformity. other. common. frequent. constituent. the. is also. hootsi,. species, of. This. group,. whereas. more. and. simplest.. takanabensis. nipponica. occupy. that. above. Mikasa. sandstone,. Ammonia. common. the. abundant. genera. meanlng. Just. the. greatly. which. of. number. collected formation and. a. sp.,. smallest, from. Uuigerina. the. with. Uuigerina. is the. scalarLS, Hanzawaia. and. subassemblage.. analogous. The. subassemblage. siltstone.. nicobarense. the. was. Tamari. the. composed. are. sample. by. Cas･sidulina. and. species, this. of. the. YosllIMOTO. is represerlted. assemblage･,. 24. Y.. and. subassemblage･. and. is composed. material. of. the. genera. between. Surface. ETO. haidingerii. of. that. T.. S王1IKAMA,. nicobarensein. only. this. subas-. semblage. Boliuina. 91 This. Subassemblage. robusta. subassemblage,. extending. nicobarense-Uuigerina occurrence. cf･. Boliuina. of. 22, this. species. by Loc･. cf･ hootsi･ aculeata･. the. hootsi. lS. assemblages,. co-existence. Pseudoeponides. of. is. 18. its characterized■by 20･3 per cent, Uuigerina. occupying. ialL'na. japonicus-. 10･4. 70. an. In. Bulimina. cent. per. is. Uuigerina. and of. 16.0. Loc.. locality. the. and. occurrence. cf･ hootsi,. abundant. species.. japonicus. abundant. Nonion. and. by. Characterized. indicating 37 genera robusta, and 37･5 per cent the assemblage of. occupies. characterized. Pseudoeponides. over. Den-. and. the. subsoluta, per of Sigmoilirta assemblage respectively. Fz-ssulina PseudoePonides japonicus, EIphidium schlumbergeri, marginata, sp. a, C･ Cibicides lobatulus, Stilostomella aknerianus, lepidula, Cassidulina asarvoi, C. Pullenia. subglobosa･ are. common. cent. bulloides,. constituent. species cf･ hootsi-. nicobarense-Uuigerina The. bigbest. with. the. that. of. the. is high. in the. that. zone. the. both the. the edge. of. landward. formation upper. to. excluding. greatest. continental. parts. per. seaward. unit. deposited middle. on. miscellaneous. zone･. of the. seaward zone･. species,. is the. of. this. The exceeds. other. aggregated number. 25. the be. former. (1964). reported. zone. occurs. distribution_of. of. that of. of species. (Loc. 16) with. along decrease. populations. said. number. the. aS. Just. mode. the. is analogous. specimens. (living+-dead). may. total. WALTON. benthonic. it. bears. locality. words,. latter.. From. (Loc. 8).. specimens. of the. each. is less. weight. formation. pattern in. assemblages.. unit 3. of. Tamari. weight. total. and. assemblages,. bathyal. minimum. In so. per. elegans. Nonion. of. those. with. japom'cus. distribution. abundance. of. anlogous. the. of. Hoeglundina. arid. foraminifera th,e. The. shelf. foraminiferal. the. Pseudoeponides. of individuals,. number. the. and. are. foraminifera･. planktonic. and. benthonic. marginal. foraminifera. of the. they. 6), with. of individuals･. benthonic. orbicularis. and. benthonic. total. (Loc･. western. number. the. the. individuals. Generally,. of. of. number. 546. than. Gyroidina. the. WALTON, at. each maximum. Tamari in the locality. of 48.
(14) Benthonic. Foraminifera. Tamari. the. of. Formation. 109.. (Loc.5). Numerical. c･. Trend. Recently, biologlCal. tistical. of. log. density. that. composed. of. the. belonglng. tO. shallow. this. the. study to. in. minifera. individuals. high. of. is. rank. lines. rank. lines. do. to. is named. by. line low. the. species. In the. arranged are. shown. longitudinal. the. axis. on. in 19701. of. the. numberexlogarithm. in polntS. (low. fora-. graphically. graph,. those. lines). The. rank. allgles,. tot. relating. lines),but. rank. acute. geometrical･. frequency. relative. lines. with. of. indicate. (bigb. broken. in 1970. benthonic. of. dotting. lines. solid by. la野. the. the. graphs. in. communities.. MAすoBA. frequencies. percentage. be. in applied fossil foraminト. and. the in. the. to. was. IKEYA. tO. and. Here. (x) and. Bay.. golng. (Fig. 5). the. cent･. per. cross. of. rank. the. assemblages. are. in the. low. the. while. so lines cross de丘niteobtuse angles, the both with with and indicated the Here the of each characteristics aseemblage. angle inter-ranking The the angle each assemblage･ of writers regard. rank. than. one. They. localities. species rank low rank species. high. high. the. represented. than. fossil. of the. formation･. are. the. angles. writers. MoTOMURA's. in all sample. less. cluding. Matsushima. applied. on. Bay,. of. also. law. Foamation,. Ishikari. sta-. seem. plant. The 1962. pro-. a. as. species. and. the. between. specimens. did,. Yurakucho. (1932). represented. workers. animal. the. analyzed. density. was. niches. in. from. be. to. of. from population foraminifera water. Tamari. the. UJIIE. :. law. many. similar. Holocene. investlgation. their. relationship. the. research. foraminiferal. progression. of. species. done. MoTOMURA. The. to. be. population. Nowadays,. applicable. the. come. of dominance. rank. (y).. specis. have. the. association･ the. to. ecology.. of. is usefully. from. recent. In. the. animal. of. population. the law. assemblage recent. of. inclined. studies. progression. between. of foraminiferal. the丘eld. the. an. y＋ax-b,. regarding. in. of. individuals. of. feral. theory. geometrical. expression. formula,. foraminiferal. and. the. using. law. the. posed. view. of. have. studies. paleontologlCal. point. statistically,. A･ssemblages. of. some. showing. the. line,. isto. as. rank. that. of the. aspect. living. former. saythe. population. is. more. clearly-. important. more. than. the. latter. As. IKEYA. (1970) by. equilibrium living. benthonic. series.. But. rations. of. tuations. dead. fossil have. in reality,. as. by. assemblage been. Most. of. the. without. bentbonic. living. to. expected. to. say. further the. taphocoenosis.. closely so. the. population. follow. law. much. foraminiferal. to. the. the. be. should. and. are. populations. a. to. respectively. is to. applied. whicb丘ts. fossilized. existance,. annual,. That be. for. adapted. and. cannot. the. assemblage. populations. currents.”. "If. are. death. seasonal. law. MロRA's. competition. foraminifera. living. tests. the. mentioned,. modi丘ed. sum. of. such. structure. of. of. geometrical. succesive. gene-. environmentalfltlC-･ by. transportation the. series geometrical of In general, the sample. MoTOMtJRA's. in. settled. law. of MoTO-. of. is regal･ded. modincations. assemblages. of the Tamari. formation. a. to･.
(15) T.. ユlo. T.. SHIKAMA,. ETO. Y.. and. YosHIMOTO. 100. 一oo. 50. 2Ji. La.25. 50. Loc.. 20. 20. 10. 10. 5. 22. 23. ＼､､. 5. 千. l＼. ㌔.＼. l. 5. ■. 1015. ^. l■＼. ＼. ＼. 10. 15. 00. 50. 20. 10. Zl. o亡.. 20. ㌔ '1-I, I. 1'･t. ). l. I.＼. ＼. ＼●＼. い. I. ㌔ 11'､. ㌔. i.. I. I. '1<.ち. ＼こ､. ＼. ∼.ユ. 16. 】7. ∼. L l. ＼. ㌔. 1. 00. 50. し∝.15. 20. ㌔.･t).ち. 10. ＼. 5. ＼一▲ ＼●. い･t.. tl. ＼■∵二. ＼＼. ＼. 5. 10. 5. ヽ. 20. 100. 50. 20. 10. ＼ i ＼. ヽ. I:,こ. I. †=＼. ll. ＼. ト ＼. ､＼. l＼くこ い､. ＼. ＼､=`＼∴. ●1･､. I. ●(＼＼. ＼一) L1･･). ＼●＼. ㌔ 〒. ㌔. ＼. ＼二. ＼. ＼て. ＼ ＼. + ∩+..._._. †00. OI 0. 10(】. 50. l=. 50. Lo(-.. 6. >･ >ヽ. ZO. しI ⊂: 一l. 20. =l tT. 41. ＼く, ＼､. ロI I) ⊂: 41 U d). †＼. a.. ＼●＼. ヽ. 5. ＼■'). ∼.. ㌔. -. ＼. 5. IO. 4I. ㌔. 10. 】O. Frequency-rank. Fig.. 5.. Relationship in. log.. of. between. benthonic. the. frequency-rank. foraminiferal. assemblages. of. species. of the. and Tamari. of. percentage formation.. species. (X). frequency.
(16) Benthonic. the. comprise However,. Foraminifera. successive. 10f the. by. modification. in. of. toward. the. in. or. the. each. other. many. environmental. factors. Tamari. formation. tion. the. of Tbe. writers. this. study. tion. for. number. their. species. of. inclinations. the. acute. the. line. analogous. and. with. of of variation during deposi-. causes. physical be almost consistent. index SIMPSON's diversity. gene-. highrank. degree. biologlCal. and. successive. the. of. degree. the. may. foraminiferal. individual index. number. (D.. the. using. species the composlng each D. I-N(N-1) by the formula,. of. I) is shown. forma-. formula. calculated. and. Tamari. the. of. in. 1949). (SIMPSON,. assemblages. structure. population. and the diversity. The. populations.. The. by. probably of different. indicate. may. mixing. and/or. should. generations. angle. of. benthonic. analyzlng. successive. generally graph This that suggests. adopted. also. of the. mixed. populations･. 25. and. are. samples･. all. by. 111. foraminiferal. 1, 10, 14, 19, 23. populations. in. Formation. similar. inter-ranking. the. line. vertical. Locs･. transportation. different. the. rations. of the. generation?. while assemblages be modified by transportation foraminiferal populations,. Tamari. the. of. k. / E ni(ni-1), where f-1 of individuals In the case of in. greater. IKEYA, of. of the widely. the. tion. of. and. The. is shown. the. exception from. ranges. values,. in. Table. 16. to ever. anyone. basement Fenster. a. of. tically. the. and. marine. such. the. physical. inner. the. bottom. be. corresponds. safely the. with. said varia-. bottom. depth,. salinity,. parts. fluctuate. water. it may. above,. one.. index. diversity. in. occur. temperature,. as. ntlmber. shallow. to. related. index. benthos. a. of the. values. mentioned. in. than. shelf. of the. foraminiferal. of. 5, is. 17,. rock an. Tamari laterally. from. in. of. is. this. Mikasa. inlier. fromation. It may. in almost. all. areas. The. most. peeps. ll. with index. out. that concluded deposition. for. Relatively the. the. the. values structure. the are. Locs.. Tamari. 10. in. low. structure. 3.64 in Loc.. marks in. than. more. 24.. and. assemblage. its. except. samples. 22 where. and. forma-. diversity. localities.. 12. Loc.. of is. and. Tamari. the. of. value. (Loc. 24),. complex The value. group. during. 22.. In. more. be. in. in Locs.. localities.. other. high. 9 in other. to. simple.. relatively. the. 7. indicated. are. meanlng. found. or. 2.. ranges. and. in the. assemblages. It is generally 12, 16 and of those of Locs. 3.64 (Loc. 16) to 17.03 within. assemblages. from. tors. index. approximately. the. the. closely. the. of. just. of. are. the. on.. so. localities. thirteen. as. species factors. diversity. tion. said. is. ”. treated. of all species is diversity of species. number. that. temperature. and fact. the. enviro･nmental. k is t･he. values. salinity. of. individuals,. of. foraminifera. lower. From. diversity. current,. the. the. the. where. annually.. that. of. that. and. that. bentbonic. of. number. Of the continental in lshikari Bay the. reglOn. in 1970. populations. total. i species and bentbos, it is. marine deeper. a. conditions,. is the. the､. of. reported. bay. N. mark than. 16 where formation. environmental q叫ite consistent 12, 16 and 22.. facver-.
(17) T,. 112. S臼IKAMA,. T.. ETO. Y.. and. YosHIMOTO. Conclusions l.. The. stratigraphic. Kakegawa. is. group. 2.. The. Tamari. was. Nom'on. robusta-,. four. and. clari丘ed. cf. hootsi-,. crassicostata-, and asanoi-UuL.gerina lostomella lepidula-, Epistominella japonica-,. The. formation that. Tamari. the. seven. different. SIMPSON's. the. almost. localities,. of. be the. to. by. of. assemblages. successive. the. of. were. geometrical. series,. generations. transportation,. generations. meaning. formation. of the foraminiferal law. Tamari. the. of. all. MoTOMURA's. mixing. successive. diverslty. in'dex. and. from the. show. the. corresponding. the. to. 3.64=. to. they. as. similar. are. of. populations. benthonic. the their. analyze. 17.03.. to. complex. consistent to. is applied. formation. ranges. marks. formation. index. Tamari. the. of. high. ties,. assemblages. regarded. Eponides. quadrilatera-,. authochthonous.. assemblages the diversity tively. the. be. to. are. which. Stil-. subassemblages.. the. of. Bolivina. are. assemblages,. deposition. the. the. and/or. Boliuinita. in. Most. nearly丘t. samples. population. considered nearly 4.. most. during. localities.. the. the. aculeata-Cassidulina. jaPonicus. robusta. another. factors. formation. for. except. of. in. in. and丘ve. They. Bulimina. foraminiferal. one. with. environmental. same. BoliuL'na. and. of benthonic. is analogous. the. the. sp.I,. structure. assemblages. laterally.. and. PseudoePomldes. 3.. the. foraminifera. characteristic. vertically. nicobarense-Uvigeirna. haidingerii-CassL'dulina. and. a. distinguished. were. subassemblages. formation. Tamari. the. clin°-unconformity. assemblages of benthonic. the. of. formation. as. regarded. change. between. relationship. deposition●of. rela-. of the assemblages in almost all locali-. the. of. and. indicating. samples. factors. paleoenvirinmental. aspect,. numerical. Most. structnres. monotonous. foraminiferal. Tamari. the. formation.. References AsANOクK.. Foraminifera. Fossil. (1.936): Japanese. English. with. from. Kakegawa. the Geol.. Jour.. Abstract).. District,. Soc.. Jap.. T6t6mi. 42,. vol.. (in. 517,. no.. pp.. 739-757.. (1950-52) i-15.. Part. (1956-60) the. The. :. 1155.. Pt.. Vol.,. 2,. Univ.,. Foraminifera. ibid., no.. Tohoku. 27,. vol.. 4, pp.. from Pt,. 192211930. pp.. Tertiary. of Japanese. catalogue. Pal.. Geol.. Soyamaru,. Spec.. i,. 56183.. Sendai,. Rep.. Pt.. 4,. Tohoku. (1971) Peninsula,. Species Pacific. Ocean.. Rec.. Japan. :. Coast. Foraminifera,. of. ibid.,. 29,. vol.. by collected 27, pp. vol.. Japan,. Univ.,. 2,. ser.. 41”. pp.. Pt.. 5,. ibid.,. 189-201.. in the Vicinity of (1926) : The Tertiary Geogr. Tokyo, 38, no･ vol･ (in Japanese). Jour. : An Explanatory Text "Shizuoka”; (ユ･932) Scale English of i: 75,000) (in Japanese with (in Ecology N. (1970) : Populational of Bentbonic. Hokkaido,. Seas. Adjacent. the. Sci.. Smaller. Japan.. Eakegawa. K.. CHITANI,. IKEYA,. S.S.. Illustrated. :. Inst.. Diversity of. North. Works of. Japan, Ibid.,. pp･. pp･. in. lshikari. 2, pp.. no.. Foraminifera, vol.. 10,. no.. of. Ibidr,. Foraminifera. 10,. Map. Geological. the. Abstract)･. vol.. Benthonic. Japan.. 444, of. Totomi. Sagara,. and. 84-891. Japan. i-48･ Bay,. 174-191.. o庁 2, pp.. the. Sbimokita. 174-191..
(18) Bentbonic. IKE,. T.. Geology. (1909) : Geol･. Surv.. KIKUCtlI,. H･. Data. TsuTSUMI,. prof･. Oil Field,. Shizuoka. Makiyama. Men.. (1925) : Stratigraphy (in Japanese)I Chikyu, Fauna (1927) : Molluscan J･. Province. 1, pp.. no.. T6t6mi,. of. On. :. (1931) :. Univ･,. (1950) : (1954) MATOBA,. Drilling. on. English. with. in. the Environs 569-576.. 6, pp.. no.. Kakegawa,. of. Se,ies Ser.. in. B,. the 7,. vol.. (1967) :. District,. 21,. γol.. Younger. T6t｡mi.. Men.. Province), in Asakura (in Japanese)･. Cenozoic Sci･. Rep･. C｡11.. S°i.. Series-Books. the. (Tokyo),. Neptons. of Geosynclinal 2, pp. 115-149. rForaminiferal Assemblages. no.. Prefecture･. Cbiba. in. 1-53.. pp,. Central. Japan. of. (in J･apanese).. loo-118.. Pliocene. 1,. no･. Prefecture. Construction. B,. ser.. 7,. (the. Systematic. :. and I(akegawa. vol･. Geology. Shizuoka 2, pp.. no･. of the B,. ser･. the. Univ･,. Y･. Imp.. 67-8ユ... pp.. Kakegawa,. near. 23-35. pp･. "Chyubu-chiho”. with. Kyoto. Geology 1･. no･. Stratigrapby. Imp･. cerning. 3,. Based. (in Japanes. Tertiary. the. vol･. Consideration. ･Part of the Lower of the Kakegawa Mem･ Coll･ Sci･ Kyoto Imp･ Univ.,. Japan･. the. 9･. vol･. Kyoto. Rep,. 147.. (1928) Chikyu･. 113. (in Japanese).. Prefecture. Vol‥. of. T6t6mi --･. Totomi. Geological. (1961) :. District･. J･. Formation. 43-57.. pp.. M･. Kakegawa. the. Abstract)･ MAKIYAMA･. 13,. no.. Tamari. the. of. Sagara. the. of. Japan,. and in. Foraminifera. Tobokuロniv･,. Mem.. Coll.. i,om. 2, vol･. ser･. Con･ 223.. pp.. the 38,. Sci/.. Choshi 2,. no.. pp.. 221-263,. (1970) Bay,. Distribution. ‥. Miyagi. 42,. 1, pp.. no.. MIYAMOTO,. of Recent Northeast. Precfecture,. M･･. Shallow. Foraminifera. Water. Japan･. Sci･ Rep･. EIKUCHI,取and. TsuTSUMI,. M･. (1962). A. :. 44,. vol･. 2, pp.. no.. (1947) :. with. 293-299.. pp.. (in Japanese).. Zool.. in. Method. Animal. Synecology. Ecol.. (in Japanese).. Rev‥. 117-119.. Further. Density. tion. Geolo_. 378-383.. pp.. Statistical. (1943) : 9,. 528,. no･. of the. (in Japanese. consideration. (1932). vol･. 2, γol.. 1.-84.. in the Kakegawa gical Structure District, Sizuoka Prefecture Englisb Abstract)･ Jour･ Geol･ Soc･ Japan, vol･ 68, no. 801, MoTOMURA, : Ⅰ･ Statistical in Animal Association Method. Mag･,. Matsushima. ｡f. Toboku口nivリSer.. in. Notes. Animal. Law. the. on. Association. Geometrical. of. Progression. (in Japanese)I. Physiol.. of. Ecol_,. the. Popula･ 1,. vol.. 2,. no.. pp.55-60. NAKAJIMA,. K･. Japan. (1886) :. (in. scale. An. ”Shizuoka”; 1:. of. 200･000). Explanatory. Text. (in Japanese)･. of. ･Publ･lmp･. Geological. the. Geol.. Surv.. ユ.-47. NoBUEARA,. H･. and. NuMATA,. gression-Studies. on. Plant. Soc･ NIITSロMA,. Ecol･,. N･. PHLEGER,. (1968) Fossil,. nese)･ F･B･ Hopkins. SAITO,. T･. (1960). Inst･. SuzuKI,. Geol･. ‥. the 3,. of the 25-33.. pp.. (1949) in (1959) : Geology Prefecture (in Japanese) T･. the ･. TsucfII･. R･. lnstitute. (1961) :. On. Bentbonic. of the the Late. Foraminiferal. of. of. Recent. Kakegawa. Pr._. Populations.. Community. Bull.. (in Japa-. Fo,aminifera.. with. District, English. 51, pp.ト45. of Diversity･. Measurment. of. Geometrical. ｡f. Biological. 180-185.. (in Japanese. PalリContrリVOl･. Law. the. of. Structure. of pp.. The. Johns. 297.. Stratigrapby. Foraminifera. :. Essentials. :. Distribution. and. Baltimore,. E･H･. Geological. 4, pp.. no･. 16, pp. Ecology. Tertiary. (1954). Fundamental. Analysis. : no.. (1960) : Press,. Planktonic SIMPSON,. vol･. M.. Map. Japan,. Environs. Nature,. of Kakegawa. Chigaku･Sbizubata Shizuoka. Univ.). Neogene. Sediments. Central. Abstract). 163,. p.. and. 19, pp. and. lts. 688.. Kikugawa,. Shizuoka. Reports. (Mimeographed no.. Japan and Tohokuロnivリ. from. the. 42148.. Molluscs. in. the. Tokai. Region,.
(19) T.. 114. N｡tes. with. Geog.,. Jap. Jour. Geol.. (1969) to. T. f.,. Ne､ogene. sci.. Geology. Tokyo. Rep.. (1962b) (1963) WALTON,. :. Western W.. R.. and. Newell,. pp.. 151-237,. WILLIAMS,. C.ち.. Quantitative M.. yoKOYAMA,. Imp. yosHIMOTO,. Univ. Y.. Japanese). 1-131.. Dr･. 43･. Fossil,. no･. of. Univ･. Jap･,. Ed.,. no･. Series 173-178･ Basin. Sedimentary. Japanese. the. with. I-7･. pp･. in. Basin. Central. Japan･. Jour･ Geol･. Zonation･. Foraminiferal. Soc･. 431-450･. Foraminiferal. Recent. Studies. Ecology. N. D. Approaches. to. Paleoecology･. Patterns. in. the. (1964). ‥. (1926). :. Press. Academic. Ecology.. Tertiary 2, vol･. sec･. (1971 MS) Graduation. :. Balance. Mollusca 1,. not. thesis. of. the. John. (London. and. Southern. 9, pp･. 31･9-389･. Yokohama. Study. Tertiary. 5,. 105-109･. no･. Wily. Nature. of. Neogene pp.. Paleoecology,. and. from. Micropaleontological. the. on. Fossil,. (in Japanese)･. Prefecture. Shizuoka. (1964) :. Recent. in the. Problems. Some. Tokyo,. pp･. i-118･. pp･. Statistical. to. 4,. no･. concerning. Sedimentary. 75･. Reference. Geometrical. of 9,. vol･. Sagara-Kakegawa. the. Sagara-Kakegawa C,. Rev･,. Special. the. Japan･. 26134･. Law. ”The. Ecol･. Southwest. of. with. 18, pp･. Symposium. Soc･. Coast. Fauna,. Motomura's. the. Geol･. the. Paci丘c. pp･. of. for. introduction. :. 68, pp.. JapリnO. the. by. YosHIMOTO. the. (in Japanese)I. ; Proceedings. Sponsored. (1962a) :. 3-4,. no･. Structure. Geological. (1958) : (in Japanese). of. Y.. Molluscan. on. Community”. Animal. UJIIE,JH.. History. vol･ Kakegawa. Discussions. :. and. (in Japanese)･. suchiense. (1943). ETO. 32,. in. Change. :. suchium. UCHIDA,. Geologic. the. ｡n. T.. SIIIKAMA,. and. and New. National. Sons. lmbrie,. Problems. York)･. pp1. Jour･. Kakegawa University･. ∫. York),. (New. Related. T6t6mi･. of the. in. of. in. 324･ Fact Group not. Sci･. (in. 87･ pp･.
(20) Explanation Fig. Figs.. 1.. of. Bolivina. 2, 3.. BRADY. robusta Bolivinita quadrilatera. Fig･. 4･. Stilostomella. Fig･. 5･. Stilostomella. Fig･. 6･. Anomalina. Fig.. 7.. Uvigerina. Loc.. Plate 6,. 1 ×52.. Loc. 8. (ScHWAGER). ×28r Loc. 6. ×28. (ScHWAGER). ketienziensis (Is王1IZAKI).Loc. 1. ×28. Loc. 2., x52. balthica (ScHROETER). lePidula. cf.. hootsi. RANKIN.. Figs.. 8, 9.. Figs.. 10a-c.. Gyroidina. Figs.. lla-b.. Hoeglundina. Figs.. 12a-b.. NonionjaPonicum. Figs.. 13a-b.. Lenticulina. surugaensis. Figs.. 14a-b.. Lenticulina. totomiensis. Uvigerina. Loc.. crassicostata. ScHWAGER.. orbicularis. D'ORBIGNY.. 14.. ×28. Locs. 6, 13. Loc. Loc.. (D'ORBIGNY).. elegans. AsANO.. Loc.. (AsANO). MAKIYAMA.. 9.. ×52p. x52. 11･. x28･. 15.. ×28. Loc. 9. Loc.. ×28. 9.. ×28-.
(21) T.. SHIKAMA,. Eto. photo,. T.. ETO. and. Y.. YosEIMOTO. See.. ⅠⅠ, Plate. 1.
(22) Cycld出i7ta. SP. TexfulLZr7ra cL. EOTIZCa. T. cL. L>･LbDStr一曲(Sc≦l､､At-EZl). J. SP. D'07?BLGrJY. GazJdr5･Tna. Sp.. MLZrtryTiOftlellLZ. SE). s7gmPZll-na. de♪'cssL2. p. murrhiT!a. r.. Sp･. RZ. ES7. (I,'OR13H-”) (Sc[nv旦L,ER). Tr27oculE氾a. ㍗(7tu7]血1)'OruilG3ttY. Nodosdla. laeLrZgLZta. (rつ'OR引しr=Y). sp. A柑♪liyCO'Pna. hmta. jl. Po弘どiLoc】[ala. JI. smZor'5. (r3'OLU'l(･耳Y) (CL'Sl】ゝ1AIT<). smZar's. A.. sp. (B^T5Cli). A.. J}. (AsA下(〕). saga'コie'ms. SP. Dyo/r()TZdL Fr(〉甘dlごu. larrd. C7L. laria. F.. /DIiaceLZ. F-. TZZ♪?on2Aca. LageTaa. od Scrl＼＼A亡,r-良. (A5^＼ロ) REt. OCtrCOSLL2. LゆoPleurL]. 3O. Sl-. 5ChhLpLbergeTI. Pyrge. N. AsAT<C). 2Sflzk)ensTS. Cldy7LITna. 10. D'ORBJC;yT. Obbrep7L2La. T. I.. elo''gLZLa. L. JTalulczLLa. L. A(坤1血Ia. L. ZLZeyLS. TJ､PPA天. 皮. Lolこr,i旧l CtJSl†ゝ1へ=. (h4()RTA⊂7t) (”(,ゝT′ヽ(,し) (-,'0官jiIく･Plヽ). slrzLZLa. i. s叫Icala. i. sp. L. sp. 皮. Cc51[ゝjAITq. sPIC8t8. McCしl･L亡'C]Z. a. ら. 1/e'z血JJTiTZO. i. 良. (ERRF-≡t与EF<(;). L少e'Z7LCZdLZ L. SS. Lorナ13LICII. (AsA;下0). blC8S旭us. calcar. (L･?,J=ヘF,ミ'5) (Cし5Iii4ÅY<). i. /z)cl血s. L. saR8777Ze7!Sis. i. (A5JuO). surzjgae,]SIS. (AsAT<()). i. i?to肌ie71SIS. (M^KIYA､1A). L. sp.. P[o71LLELZri8. SP. Vag7ATlul[na. s[).. p.. (As^3TO). B(2,3) ]`ゆomrca. p, P. sp. j(.. Globutz貯LZ. SP. G!JLtzJITla. Sp. FisszL[zna. morgmalo. Ool2TZa o. ). r. 1ト) 4(I 3) 】(- ). Ⅵ｢】LL;Aト15DN. (Mo5r人GL】). globosa. B7LIzm2A71ella. (【)■0】モf-”;. elcganLIIss]nw. BoLiFI'EZLd. 之(. (ScIE＼vlゝLI,ER. quadrzLDlera. ￠zLryTiqlJeloc祉LrTla. Q. ). 3(I.2). ゝ1･)=てACtl. eLZteT17LEala. cf. 3(. 3(1･ 2). ゝ1At(n'AhlA. LotoTTtle71SLS. ). 4く】-9). 7JATし^r(≡). eloTZgOfa. sp. Bolip7TZLL rL)b7J5Ja. B. ⊂1. I. SIDEBOT. EOmJ,acLa. a. ()M. i(,). BRADヽ'. sp,. 8. 且. sp. ら,. β. sp. a. sp. 63(I尽S). j(I. 1(. a. RectoboltL,End. B. ⊂f. a. margEnata. 5(1 4). sp. Jl(12). ま5(70). i(.. 18(8.4). 1(. Cl-Stlゝう<下. szLb7J/ate. ) 6(】 7). Sl二GUE3L]Z人. lr[メaEa. I-'0托Eu(′TtY. a.. TZO)ぎmOeTZSLS. B. cf. B.. s†) Cf. per甲L,rSLl sp. 2(.. (BAR-Er). (17jrZCZLEata. A(. (Ctsl】ゝ1＼て). RetESSelEa. aculeDEaしt/TS】llVArly CraSSzCOStatLZ. exぐelLc7LS. ”. ef. ). 9(3- 7). Scu､､ノAGEF:. L'p7gerZnCL ”. ). ど)'OEtBIGT<T. Globobdzmロー8. a. ). 22(10. 3). As斗宍O. slrzeta. a,. 2(･). 】(- ). ). bL/OrPIZざ(BRノゝDY). Ca5S2-血Imoides. elo71gaLa. ). ). (:. 8. 2(. AsAて亡1. losae捉5ZS. β. 】】(28). T()D王). bootsz. j7(7. RÅ≡KIT<. 0). BruDY. a. sfFiWDgeri. Lr. s71bbcreguJITEa. LT.. 5ZLbsErz8La. sl声71L'ge'l. s. CLISliPJAミ. ELfnrhPn,i. AsAN(). erlTLa. ,,I. CO]u. 良. sp,. EosalllZa. Brady. JoriES). (WELl一旦u5O'て). a'ZRulosa. BueceLLa. (BF<Al)7). eEZLUis. (P^RKER. ra9bLITL7LS. Trlf8r主けa. (CIA-SRゝ1A!q) (AsA”O). EpzsZo払如Lla E. &. ]`ゆo,LICa FLミ壬:ZIMA. タillchelLL7. アoZmtiTlerゴLI. 良. Mし,見t:llJ. SP. G[abratella. 1(. sp. 5(1 7). bcccarけ(L!r(NÅEeS) keLz∼e71.Ele'ISzS a71gu[dta (Kcl､A汚0). A. cf,. fLZkaT10bensis. A,. sp. 2(･. ). (lstiE7-AEJ). 2(_. ). 2(-. ). 16(7- 9). 5(2 2). a.. Sp. sp. 36(17. 6). a,. (T,'0!d)I仁王-). Epo'zzdL,Sムaidl,.germ. 5(2 E. E,?TOCerZLS. (BJミAl)Y). 1(. ). 1(. 7(3.1). ). (REUS≦). zJTTZb()TIEZLt(s E. 2). (K^lモ丘Ef(). p{aecincfes. E. Ll(1 6). ). (AsAてヾO). ni♪♪o和ICa. El♪h)dlum. ). 5(2 5). 62(227) 1(. paraTOLL2L2d. Eq. 5(】 6). 3(1 2). (BEADY). PLZJ･zLLosa. A. 1( ) 3(L2). 9(3 a). I)亡夫nO. )aJ,oml亡7L5. Am7W7718. A. ) 2(.. psezLdoe♪Lm'des. sp.. PL)rOe♪oTZZdes. sp. c,blczdes. akneria'Z7JS. c.. IobatzJIzJS. c. J'seud8u'rgCr-LZ77uS. (I)'()8BfGNY) 良 J^coi)). (W^LiくFJE. st7lostozEEelL8. (CL:SilMAT') bタZLg(1en51S. CL. s_. ket]eTlrZe7.Sis. s. le♪}ydzL(aくScuwAGER). S_. sp.. F社rSenkotAna. lSh7'kl'cTIS7S. Lo.rosLLlmum. b√ady. L. (エ5】口ZAK】). (ls】zIZAKI). (^sÅT10) 4(1 6) 7(2 9). (BEAⅠ)Y) t3〔コJIL〉. c(1SS2血l(丁柑aSaT(07 c.. laeplgaEL7. C.. ♪alj}eaCt]sHhlA六. c. subgtDbosa. C.. sp,. 1(. ). 25(l]. 8). (AsAT<0). karrerzan山m. D'O丘BIG≡＼. 2(.. B逢ADヽ'. )■. 8(3-3). i. 19(ら. 】4(4-I ≡. 12(3. 6(2 5) 12(5. 7). ≡. 12(3. 15(7. a). 3(1, Ji) 2(.. Ct}s11h4Arl. N. 71汀ObaTe7iざe. N. sp,. 76(23･8). i(.. ).. 9(4 4)㌔. Sl(13J. 13(5-2) 1(-. FIorllus. (PseudoTWEilO吐). pzJIcT12Aa. apertzLILZ. p.. bultoz∼des. P.. sp. ∫aタoT11AclLm. 3(･):. 10(7- 6) 1( ). 8(25'. 三S122ミ竪. lsHIZ^KI. TuPPoTZICa. 】ト). D'Ofくil[C.=Y. oγbIAcu[aT7S. 4(13). ). 4(1.9). 4(l-3). Cし5JihlA汽. (DrOFEBIG当ヽ'). GyTOTLdzTZD a. ). 7(5 3),. 7(乙B). 1ト). 4(l･2). 3(i 2). lト). 13(5. 18(4-6). 2). 2(. ). D'ORBFGr(Y. soLddni2 sp. 5(i17). 26(84)}. 3(1-1) ). 1(. A.sp HaTL2LZWaia. 3(1･ 0). AsJIKO. 77年♪o71tCd. 1ト). E,舌p 9omf11!Q7des. Jt4eLoTZ15 Hoeg血md･77a. 良. (F[clrrEL. elegL]TZS. MoLL). 8(2- 7) 4(】 1). (D-Oi7BIGTiヽ) (2. (. E)(2.2. 22 30 Total. iIldivldtlal. NllTT)her. of. 273. 34. 211. rmrrLbers 1. 2. 12. ユ4. 6. 75. allqしIOtS. 2. planktorllC. SpeelrrlerLS. (plartktofl/Planktor･＋Benth8S) DIVerSlty. (.). 】. index. Le;s-tha{1. vahe. per. c言nL. B. 16. 4. 82. 54 1呂. 1 Total. 33. 375. 204. Per. Llnit ”. 6. 2. ℡e-gilt. 】Oe/Oi. 1. 5 3g. 4. 30. 0. 6. 18.0. 8. 364. 197 7:). 1 4. 63. 23(7･0).
(23)
図
+2
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