(0–50 m.y.)
( 1000, 1000) ( 500, 500)
numerical solutions
sections ( time, depth)
1000km 50km Zmax= Zmax= 8.0
6.0 0.30 0.35
A
B
Fig. 30. Comparison between analytical solutions and numerical solutions of
these models. A: thermal discrepancy caused by discontinuous a boundary of
physical properties in the sediment– basement column. B: Computational errors
of the heat flow for discretization of time and depth.
0 20
20 0
0
10
Ћdepth (km)
0
10
Ћdepth (km)heat flowЍ
time (m.y.)Ѝ Ќ100 mW/m2
Ќ100 mW/m2
100 mW/m2
sections 4000(for depth)×2000(for time)
subsidence
(0.946 km/m.y
.)Ѝ
depth=5 km surface depth=10 km no subsidenceЍ
non subsidenceЍ sedimentation (0.788 km/m.y
.)Ѝ
uplift (0.946 km/m.y .)Ѝ
heat flowЍ
time (m.y.)Ѝ 100 mW/m2
thermal conductivity = 3.0(W m-1K-1)
heat capacity =3.0106(J m-3K-1)
thermal conductivity = 4.0(W m-1K-1)
heat capacity =2.4106(J m-3K-1)
thermal conductivity = 3.0(W m-1K-1)
heat capacity =3.0106(J m-3K-1)
thermal conductivity = 4.0(W m-1K-1)
heat capacity =2.4106(J m-3K-1)
sections 4000(for depth)×2000(for time)
burial (0.946 km/m.y
.)Ѝ
depth=5 km surface depth=10 km no subsidence→
Ў300K Ў300K
8 8
10 16
isotherm (50Υ contour interval)
isotherm (50Υ contour interval)
A
B
Fig. 31.Numerical models of thermal condition for subsidence, sedimentation and uplift. Time series variation of temperature distribution in the sediment–
basement column and heat flows among surface, 5 km, and 10 km depths. A:
subsidence and steady state. B: subsidence, steady state, and uplift in a
restricted sedimentation rate. Gradation of colors from blue to orange-red
represents difference of temperature ranging from 300 K to 600 K.
ࢩ࣑࣮ࣗࣞࢩࣙࣥࡣJIS Full BASICࡢ୍ࡘ࡛࠶ࡿUltraBasic v.3ࢆ⏝ࡋࡓ㸬ࣉࣟࢢ
࣒ࣛࡢᇶᮏᵓ㐀ࡣ௨ୗࡢࣜࢫࢺࡢ㏻ࡾ࡛࠶ࡿ㸦ࣜࢫࢺ㸰㸧㸬ࡲࡓ㸪」ᩘ᮲௳ࡢࣃࢫࢆྠィ
⟬ࡋ㸪ࡑࡢ㛫ⓗኚ⾲♧ᑐᛂࡍࡿࣂ࣮ࢪࣙࣥࡶసᡂࡋࡓ㸬
ࣜࢫࢺ㸰
㸳㸬㸰㸬㸰 ሁ✚┅࡛ࡢᇙἐຠᯝࡢ᳨ウ
᭱ึ⡆༢࡞᮲௳࡛ࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ࠸ࡃࡘᐇ⾜ࡋࡓ㸬Ꮝ㝽ࡢᏑᅾࡋ࡞࠸ᆒ㉁࡞
ሁ✚≀ࡢᇙἐ࠾࠸࡚㸪ሁ✚≀ࡢሁ✚㏿ᗘࢆไ㝈ࡋࡓሙྜୖ᪼㐣⛬࡛ࡢ ᗘᵓ㐀࣭⇕ὶ 㔞ࡢኚࢆㄪࡓ㸦Fig. 31㸧㸬࡞≀ᛶ᮲௳࣭ቃ⏺᮲௳ࡣ㸪ᇶ┙ᒾࡢ⇕ఏᑟᗘ3.0 W/mK㸪
⇕ᐜ㔞3.0106 J/m3㸪⇕⏕⏘0 μW/m3㸪ሁ✚≀ࡢ⇕ఏᑟᗘ4.0 W/mK㸪⇕ᐜ㔞2.4106 J/m3㸪
⇕⏕⏘0 μW/m3㸪ୗ㝈῝ᗘࡣ㸪10 km࡛ୖ㝈ࡀ300 Kࡢࢹࣜࢡࣞ᮲௳㸪ୗ㝈ࡀ100 mW/m2 ࡢࣀ࣐ࣥ᮲௳ࡋࡓ㸬ᇙἐ᮲௳ࡣ㸪A㸸ᮇ㛫0㹼8 m.y.ỿ㝆㏿ᗘ0.946 km/m.y.㸦3 μm/s㸧㸪
ࡑࡢᚋ㸦8㹼20 m.y.㸧ࡣỿ㝆࣭ୖ᪼ࡶ⏕ࡌ࡞࠸㸬ሁ✚㏿ᗘࡣỿ㝆㏿ᗘྠࡌ㸦ᇙ✚㸧
ࡋࡓ㸬B㸸ᮇ㛫0㹼8 m.y.ỿ㝆㏿ᗘ0.946 km/m.y.㸦3 μm/s㸧㸪ᮇ㛫8㹼16 m.y.ࡣỿ 㝆࣭ୖ᪼ࡶ⏕ࡌࡎ㸪ᮇ㛫16㹼20 m.y.ୖ᪼㏿ᗘ0.946 km/m.y.㸦3 μm/s㸧࡛࠶ࡿ㸬ሁ
✚㏿ᗘࡣ0.788 km/m.y.㸦2.5 μm/s㸧ࡋࡓ㸬ࡑࡢ⤖ᯝ㸪ᇙ✚ࡢሙྜ㸪ỿ㝆ࡀṆᚋ㏿
ࡸ⇕ὶ㔞ࡢୖ᪼ࡀ⏕ࡌࡿ㸬ࡑࢀྠᆅ ໙㓄ࡀୖ᪼ࡋྛ➼ ⥺ࡢ῝ᗘࡀὸࡃ࡞ࡿ㸬
᪉㸪ሁ✚㏿ᗘࡀỿ㝆㏿ᗘࡼࡾ㐜࠸ሙྜ㸪ᇶ┙ࡢỿ㝆ࡀṆᚋࡢᇙ✚ࡀࡍࡿࡲ࡛ࡢᮇ 㛫ࡢᆅẆ⇕ὶ㔞ࡣ㸪ึᮇ್ࡲ࡛ᅇࡏࡎῶᑡഴྥࢆ⥔ᣢࡍࡿࡇࡀุ᫂ࡋࡓ㸬ࡇࢀࡣ᪂ ࡓ࡞ሁ✚≀ࡀ౪⤥ࡉࢀ⥆ࡅࡿሁ✚≀⾲㠃㏆ࡔࡅ࡛࡞ࡃ㸪῝ᗘ5 km࠾࠸࡚ࡶྠᵝ࡛࠶ࡗ
ࡓ㸬㸦Fig. 31A㸧㸬ᇙ✚ࡼࡾሁ✚≀ୖ㠃ࡢ῝ᗘࡀୖ᪼ࡍࡿࡓࡵ㸪⤖ᯝⓗ➼ ⥺ࡢ῝ᗘࡣୖ
᪼ࡍࡿࡀ㸪ᆅ ໙㓄ࡣୖ᪼ࡋ࡚࠸࡞࠸㸬୧ࣔࢹࣝࡘ࠸࡚㸪ᇶ┙ᒾ┤ୖࡢ ᗘኚὀ┠
ࡍࡿ㸪ሁ✚㏿ᗘࢆไ㝈ࡋࡓሙྜࡢ࠺ࡀప࠸ ᗘᒚṔࢆ㎺ࡗ࡚࠸ࡿ㸬ࡲࡓ㸪ୖ᪼㌿ࡌ
ࡿ㸪ୖ㝈ቃ⏺࡛ࡣୗ㝈ቃ⏺ࡼࡾ㧗࠸⇕ὶ㔞࡞ࡿ㸬
ḟ㸪ᇶ┙ᒾࡀỿ㝆ᚋࡍࡄୖ᪼㌿ࡌࡿሙྜࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࡋ࡚㸳᮲௳ࢆẚ㍑
ࡋࡓ㸦Fig. 32A–E㸧㸬࡞≀ᛶ᮲௳࣭ቃ⏺᮲௳ࡣ๓㏙ࡢࣔࢹࣝ㸦Fig. 31㸧ྠᵝ࡛࠶ࡿ㸬ᇙ ἐ᮲௳ࡣ㸪A㸸ᮇ㛫0㹼5 m.y.ỿ㝆㏿ᗘ1.892 km/m.y.㸦6 μm/s㸧࡛㸪ᮇ㛫5.1㹼10 m.y
ୖ᪼㏿ᗘ0.315 km/m.y.㸦1 μm/s㸧࡛࠶ࡿ㸬B㸸ᮇ㛫0㹼5 m.y.ỿ㝆㏿ᗘ1.892 km/m.y.
㸦6 μm/s㸧࡛㸪ᮇ㛫5.1㹼10 m.yୖ᪼㏿ᗘ1.103 km/m.y.㸦3.5 μm/s㸧࡛࠶ࡿ㸬C㸸ᮇ 㛫0㹼5 m.y.ỿ㝆㏿ᗘ1.892 km/m.y.㸦6 μm/s㸧࡛㸪ᮇ㛫5.1㹼10 m.yୖ᪼㏿ᗘ1.892 km/m.y.㸦6 μm/s㸧࡛࠶ࡿ㸬A–B࡛ࡣሁ✚㏿ᗘࡣỿ㝆㏿ᗘྠࡌࡋࡓ㸬D㸸ᮇ㛫0㹼5 m.y.
ỿ㝆㏿ᗘ1.892 km/m.y.㸦6 μm/s㸧࡛㸪ᮇ㛫5.1㹼10 m.y.ୖ᪼㏿ᗘ1.892 km/m.y.
㸦6 μm/s㸧࡛࠶ࡿ㸬ሁ✚㏿ᗘࢆ0.946 km/m.y.㸦3 μm/s㸧ไ㝈ࡋࡓ㸬E㸸ỿ㝆࣭ୖ࣭᪼ሁ
✚㏿ᗘࡣࣔࢹࣝ Dྠ᮲௳࡛࠶ࡿࡀ㸪⌧ᅾࡢᾏὒࡢప⦋ᗘᆅᇦࡢ ᗘᵓ㐀ࢆཧ⪃ࡋ࡚ሁ
✚≀ୖ㠃ࡢ ᗘࢆỈ῝ඹኚࡉࡏࡓ㸬Ỉ῝ࡼࡿ ᗘ᮲௳ࡣ273+27exp(㸫z㸭2618) 㸦zࡣ῝ᗘ㸦㹫㸧㸪 ᗘࡢ༢ࡣK㸧࡛࠶ࡾ㸪Ỉ῝0 m࡛ࡣ300 K㸪Ỉ῝5000 m࡛ࡣ⣙277 K㸦4Υ㸧ࡋࡓ㸬 ᗘศᕸ୰ࡢ㟷⥺ࡣࡑࢀࡒࢀᇶ┙ᒾࡼࡾ3 kmୖࡢሁ✚≀ࡢᇙἐࣃࢫ
࡛࠶ࡿ㸬ࡇࢀࡽࡢ ᗘࣃࢫ࠾ࡼࡧ⿕⇕ࡼࡿࣅࢺࣜࢼࢺᑕ⋡ࢆFig. 33♧ࡋࡓ㸬 ࡑࡢ⤖ᯝ㸪࠸ࡃࡘࡢὀ┠ࡍࡁ⌧㇟ࡀㄞࡳྲྀࢀࡓ㸬ỿ㝆ᚋࡢ㏿ࡸ࡞ୖ᪼ᛂࡌ࡚⇕
ὶ㔞࠾ࡼࡧᆅ ໙㓄ࡣୖ᪼㌿ࡌࡿࡀ㸪ୖ᪼㏿ᗘࡀࡁ࠸⇕ὶ㔞ࡢୖ᪼㏿ᗘୖ᪼㔞
3 km3 km3 km
0 10
10 0
0
10
Ћdepth (km)
0
10
Ћdepth (km)heat flowЍ
time (m.y.)Ѝ Ќ100 mW/m2
Ќ100 mW/m2
100 mW/m2
sections 4000(for depth)×2000(for time)
subsidence (1.892 km/m.y
.)Ѝ
depth=5 km surface depth=10 km uplift (1.892 km/m.y
.)Ѝ uplift (0.315 km/m.y
.)Ѝ
heat flowЍ
time (m.y.)Ѝ 100 mW/m2
thermal conductivity = 3.0(W m-1K-1)
heat capacity =3.0106(J m-3K-1)
thermal conductivity = 4.0(W m-1K-1)
heat capacity =2.4106(J m-3K-1)
sections 4000(for depth)×2000(for time)
burial (1.892 km/m.y
.)Ѝ
depth=5 km surface depth=10 km
Ў300 K Ў300 K
uplift (1.103 km/m.y .)Ѝ
A
C
0 10 0
10
Ћdepth (km)heat flowЍ
time (m.y.)Ѝ Ќ100 mW/m2
100 mW/m2
sections 4000(for depth)×2000(for time)
subsidence (1.892 km/m.y
.)Ѝ
depth=5 km surface depth=10 km
Ў300K
5 5.1 5 5.1
5 5.1
B
isotherm (50Υ contour interval)
isotherm (50Υ contour interval)
isotherm (50Υ contour interval)
3 km3 km
0 10 0
10
Ћdepth (km)heat flowЍ
time (m.y.)Ѝ Ќ100 mW/m2
100 mW/m2
sections 4000(for depth)×2000(for time)
subsidence
(1.892 km/m.y
.)Ѝ
depth=5 km surface depth=10 km uplift (1.892 km/m.y
.)Ѝ
Ў273+27exp(depth
2618) K
uplift (1.892 km/m.y .)Ѝ
Fig. 32. Comparison of thermal models for five conditions. A–C: Rapid subsidence followed by slow to rapid uplift. D: Rapid subsidence followed by rapid uplift in a restricted sedimentation rate. E: Rapid subsidence followed by rapid uplift in a restricted sedimentation rate and variable surface temperature for depth. Gradation of colors from blue to orange-red represents difference of temperature ranging from 300 K to 700 K.
E
0 10 0
10
Ћdepth (km)heat flowЍ
time (m.y.)Ѝ Ќ100 mW/m2
100 mW/m2
sections 4000(for depth)×2000(for time)
subsidence (1.892 km/m.y
.)Ѝ
depth=5 km surface depth=10 km sedimentation (0.946 km/m.y
.)Ѝ
sedimentation (0.946 km/m.y
.)Ѝ
isotherm (50Υ contour interval)
isotherm (50Υ contour interval)
Ў300 K
5 5.1 6.8
6.8 5 5.1
D
ࡀࡁ࠸ࡇࡀࢃࡿ㸦Fig. 32A–C㸧㸬ࡋࡋ㸪ࣔࢹࣝAࡽCࡢሁ✚≀ࡢᇙἐࣃࢫࡑ ࡢ ᗘኚ㑄ࢆẚ㍑ࡋ࡚ࡳࡿ㸪ୖ᪼㏿ᗘࡀᑠࡉ࠸࠺ࡀ㸪⤒㦂ࡍࡿ᭱㧗ྂᆅ ࡣ㧗࠸ࡇ
ࡀㄞࡳྲྀࢀࡿ㸦Fig. 33㸧㸬ࡍ࡞ࢃࡕ㸪ୖ᪼㏿ᗘࡀࡁ࠸ᆅ ໙㓄ࡢୖ᪼㔞ࡀࡁ࠸ࡀ㸪
ྠࡌ῝ᗘࡲ࡛฿㐩ࡋࡓሁ✚≀ࡢ ᗘᒚṔࢆẚ㍑ࡍࡿ㸪⤖ᒁୖ᪼㏿ᗘࡀࡁ࠸᭱㧗ྂ
ᆅ ࡀపࡃ࡞ࡿࡇࡀ♧၀ࡉࢀࡿ㸬ࡲࡓ㸪ᇙ✚ሁ✚㏿ᗘࢆไ㝈ࡋࡓሙྜࢆẚ㍑ࡍࡿ
㸦Fig. 32C, D㸧㸪ࣔࢹࣝD࡛ࡣࣔࢹࣝCẚ㍑ࡋ࡚᭱㧗ྂᆅ ࡀ64Υప࠸ ᗘࣃࢫ࡞ࡗ
ࡓ㸦Fig. 33㸧㸬ሁ✚㏿ᗘࡀไ㝈ࡉࢀࡓศࡔࡅሁ✚≀ୖ㠃ࡢᶆ㧗ࡀୗࡀࡿࡓࡵ㸪ࣔࢹࣝ A–C
ࣔࢹࣝD㸪E࡛ࡣᇶ┙ࡢ᭱ᇙ✚῝ᗘ࠾ࡼࡧࡑࡢᮇࡀ␗࡞ࡿ㸦Fig. 33㸧㸬ᇙ✚ࡢࣔࢹ
ࣝA–C࡛ࡣ㸪᭱ᇙ✚῝ᗘࡣ9.46 km࡛㸪ࡑࡢᮇ㛫ࡣ5.0–5.1 m.y.࡛࠶ࡿ㸬ሁ✚㏿ᗘไ 㝈ࡢࣔࢹࣝD㸪E࡛ࡣ᭱ᇙ✚῝ᗘࡣ⣙6.5 km࡛㸪ᇙ✚ࡀࡍࡿ⣙6.8 m.y.࡛࠶ࡾ㸪
᭱ỿ㝆ࡢ5.0–5.1 m.y.ࡢᇙ✚῝ᗘࡣ4.73 km࡛࠶ࡿ㸬ࡇࡢ୧⪅ࡢ᭱ᇙ✚῝ᗘᕪࡣ㸪 ỿ㝆ᚋࡢୖ᪼㏿ᗘࡀᑠࡉࡃሁ✚㏿ᗘࡀࡁ࠸ᑠࡉࡃ࡞ࡿ㸬᪉㸪ሁ✚≀ୖ㠃࡛ࡢ⇕ὶ 㔞ࡢῶᑡ㔞ࡣ㸪ሁ✚㏿ᗘࡀᑠࡉ࠸ᑠࡉࡃ࡞ࡗࡓ㸬᭱㧗ྂᆅ ࢆ⤒㦂ࡍࡿᮇ㛫ࡣ㸪㸱ࡘ ࡢࣔࢹࣝࡶୖ᪼ࢆ㛤ጞࡍࡿ5.1 m.y.ࡼࡾᩘm.y.ᚋ࡛࠶ࡗࡓ㸦Fig. 33㸧㸬ࣔࢹࣝD࠾࠸
࡚㸪ୖ᪼㌿ࡌࡓ5.1 m.y.௨㝆ࡢ⾲㠃࡛ࡢ⇕ὶ㔞ࡣ㸪ỿ㝆ྠᵝୗ㝈ࡽ౪⤥ࡉࢀࡿ
⇕ὶ㔞ࡼࡾᑠࡉ࠸㸬ࡋࡶࡑࡢᙳ㡪ࡣሁ✚≀⾲㠃㏆ࡔࡅ࡛࡞ࡃ㸪῝ᗘ5 kmࡢ⇕ὶ㔞ࡽ
ࡶㄞࡳྲྀࢀࡿ㸬ࣔࢹࣝA–CࣔࢹࣝD࡛᭱㧗ྂᆅ ࡁ࡞ᕪࡀ⏕ࡌࡓ᭱ࡢཎᅉࡣ㸪᭱
ỿ㝆ࡢᇙ✚῝ᗘࡢ㐪࠸࡛࠶ࢁ࠺ࡀ㸪ࡶ࠺୍ࡘࡢ㔜せ࡞せᅉࡋ࡚㸪ୖ᪼౪⤥ࡀ⥆
࠸ࡓሁ✚≀ࢆ ࡵࡿࡓࡵᚲせ࡞⇕㔞ࡀᣲࡆࡽࢀࡿ㸬ࡍ࡞ࢃࡕ㸪᪂ࡓ࡞ሁ✚≀ࡢ౪⤥ࡣ㸪 ሁ✚┅ࡢୖ᪼࠾࠸࡚ࡶ⇕ὶ㔞ࡢῶᑡࡢࡁ࡞せᅉ࡞ࡗࡓࡇࡀ♧၀ࡉࢀࡿ㸬ࡇࢀࡀ
ୖ᪼ࡢ ᗘୖ᪼ࢆ⦆ࡋࡓࡢࡔࢁ࠺㸬ࡉࡽ㸪ࣔࢹࣝDࣔࢹࣝEࡘ࠸࡚ྠࡌ῝ᗘࡲ
࡛฿㐩ࡋࡓሁ✚≀ࡢ ᗘᒚṔࢆẚ㍑ࡍࡿ㸪ࣔࢹࣝ E ࡢ࠺ࡀ᭱㧗ྂᆅ ㏆࡛ࡢ⿕⇕
ᗘࡀ6Υప࠸㸦Fig. 33㸧㸬ᾏὒࡢ୍⯡ⓗ࡞ ᗘᵓ㐀ࢆ⪃៖ࡍࡿࣔࢹࣝEࡀ⮬↛᮲௳㏆࠸
⪃࠼ࡽࢀࡿࡔࢁ࠺ࡀ㸪ࡇࡢᙳ㡪ࡣᆅୗ࠾࠸࡚ࡶ༑ᩘᗘࡢ ᗘᕪ࡞ࡾỴࡋ࡚↓ど࡛ࡁ
ࡿᑠࡉ࠸ࡶࡢࡣ࡞࠸ࡇࡀ♧၀ࡉࢀࡓ㸬ࣔࢹࣝD࠾ࡼࡧEࡢ᮲௳ࡼࡿ ᗘᵓ㐀ࡢ ᙳ㡪ࡣ㸪ࡕࡽࡢࢣ࣮ࢫࡶሁ✚┅⦕㎶㒊ࡼࡾᇙἐ㏿ᗘࡀᛴ㏿࡛Ỉ῝ࡀ῝࠸⪃࠼ࡽࢀࡿሁ
✚┅୰ᚰഃࡢᆅୗ ᗘ≧ែࢆࡼࡾప ࡉࡏࡿ᪉ྥస⏝ࡍࡿࡇ࡞ࡿ㸬
㸳㸬㸰㸬㸱 Ἠሁ✚┅ࡢᇙἐࢩ࣑࣮ࣗࣞࢩࣙࣥ
᭷ᶵ≀⇍ᡂࡢࢧࣈ࣮ࣝࢳࣥࢆᶵ⬟ࡉࡏࡓἨሁ✚┅ࡢලయⓗ࡞ᇙἐࣔࢹࣝࢆ᳨ウࡍࡿ㸬
Ἠᒙ⩌ࡢࣔࢹ࡛ࣝࡣ㸪ࣅࢺࣜࢼࢺᑕ⋡ࡼࡿ⇍ᡂ≧ែࡢ≉ᚩࡋ࡚ࡢࡼ࠺࡞≧ែ
ࡀ⏕ࡌ࠺ࡿࡢ᳨ウ㔜Ⅼࢆ⨨ࡁ㸪⌧≧࠾࠸࡚ࡣࣔࢹࣝ⮬↛᮲௳ࡢほᐹ⤖ᯝ㸦ࣅࢺࣜ
ࢼࢺᑕ⋡ࡢ್㸧ࡀṇ☜୍⮴ࡍࡿࡇࢆ┠ⓗࡋ࡚࠸࡞࠸㸬ࢩ࣑࣮ࣗࣞࢩࣙࣥ࠾ࡅ
ࡿ ᗘ᮲௳ࡣ㸪῝ᗘ࡞ࡢᇙἐ᮲௳࠾ࡼࡧ⇕ఏᑟᗘ࡞ࡢᇶᮏⓗ࡞≀ᛶ᮲௳ࡔࡅ࡛࡞ࡃ㸪 ቃ⏺᮲௳ࡢタᐃ࡞ࡁࡃᙳ㡪ࡉࢀࡿ㸦Figs. 31, 32㸧㸬ࡋࡋ㸪๓㏙ࡢ㏻ࡾ㸪Ἠᒙ⩌࡛
ࡣሁ✚┅ࡢᆅୗᵓ㐀㸪⾲㠃ሁ✚≀ࡢ᭱ᇙἐ῝ᗘ㸪ᇶ┙ᒾࡢ✀㢮࠾ࡼࡧࡑࡢ≀ᛶࡀ༑ศ
ゎ᫂ࡉࢀ࡚࠸ࡿࡣゝ࠸㞴࠸ࡓࡵ࡛࠶ࡿ㸬ࡘࡲࡾ㸪ᮏ◊✲࠾࠸࡚㸪Ἠሁ✚┅ࡢ⿕⇕ࣔ
ࢹࣝ⮬↛᮲௳ࡀ㢮ఝࡍࡿ᮲௳࡛࠶ࡗ࡚ࡶ㸪ᆅẆ⇕ὶ㔞࡞ࡢලయⓗ࡞್ࡀ㸪ⓑள⣖ሁ✚
ᙜࡢἨሁ✚┅࿘㎶࡛ࡢ≀⌮᮲௳ࡋ࡚ඖࡉࢀࡓ᭱㐺࡞್࡛࠶ࡿᙇࡋ࡚࠸ࡿࢃࡅ
࡛ࡣ࡞࠸ࡇࢆゝཬࡋ࡚࠾ࡃ㸬࡞࠾㸪ỿ㝆ሁ✚㸪ୖ᪼ࡼࡾ⏕ࡌࡿ⇕ὶ㔞ࡢኚࡘ࠸
࡚㸪ᮏ◊✲࡛ࡣࡲࡵ࡚ᇙἐຠᯝ⾲⌧ࡍࡿ㸬
ࣜࢫࢺ㸯ࡢ᮲௳ࢆ⏝ࡋ࡚㸪Ἠሁ✚┅ࡢ⿕⇕≧ែࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࡢ࠸ࡃࡘࡢ
ࢆ♧ࡍ㸦Fig. 34㸧㸬MTL㏆ഐ࡛ࡢ⿕⇕㛵ࡋ࡚ࡣ➨㸱❶࡚㸰㏻ࡾࡢゎ㔘ࢆᥦ♧ࡋࡓࡀ㸪
ᮏࣔࢹ࡛ࣝࡣ㸪ලయⓗ࡞᳨ウࡀᐜ࡛᫆࠶ࡿሁ✚ᙜࡢሁ✚┅ᖜࡣࡶࡗᗈࡗࡓሙྜࢆ௬ ᐃࡋ࡚㸪ሁ✚┅ࡢᗏ㒊ࡢᙧ≧ࢆ⦕㒊ࡽ༡⦕㒊ࡲ࡛┤⥺ⓗ࡞ᩳ㠃ࡋࡓ㸬ᵝࠎ࡞᮲௳ࢆ
ኚࡉࡏ᳨࡚ウࡋࡓ⤖ᯝ㸪100mW/m2௨ୖࡢ㧗࠸ᆅẆ⇕ὶ㔞㸪༡⦕ࡽ⦕ྥࡗ࡚ᇙ ἐ㸪ሁ✚ୖ᪼ࡢ㏿ᗘࡀᑠࡉࡃ࡞ࡾ㸪ୖ᪼ࡣ༡᪉ࡽ㛤ጞࡍࡿ࠸࠺᮲௳㸦Fig. 35a㸧࠾
࠸࡚㸪ྠࡌ῝ᗘࡲ࡛ᇙἐࡋࡓࡋ࡚ࡶࡁ࡞⇍ᡂᗘࡢ㐪࠸ࢆᐇ⌧࡛ࡁࡓ㸦Fig. 34. model S1,
S2, S4㸧㸬ࡲࡓ㸪ᇙἐຠᯝࡀ⏕ࡌࡿ⎔ቃୗ࡛ࡢᆅᒙࡢࣈࣟࢵࢡഴືࡼࡿ⿕⇕ࣔࢹࣝࡶసᡂ
ࡋࡓ㸦Fig. 34. model S6㸧㸬ࡑࡢ௦⾲ⓗ࡞ࣔࢹࣝS2࠾ࡼࡧS6ࡢ⦕࣭༡⦕࡛ࡢᇙἐࣉࣟࢭ ࢫࢆ♧ࡋࡓ㸦Figs. 35, 36㸧㸬㸲ࡘࡢࣔࢹࣝ㸦Fig. 34㸧ᇙἐຠᯝࡢ⏕ࡌ࡞࠸ᐃᖖ≧ែ࡛ࡢ
⿕⇕ᚋࣈࣟࢵࢡഴືࡀ⏕ࡌࡿࣔࢹࣝࡢィ㸳ࡘࡢ᮲௳࠾࠸࡚㸪ࣅࢺࣜࢼࢺᑕ⋡ࡢ༡
ኚࢆẚ㍑ࡋࡓ㸦Fig. 37㸧㸬ࡍࡿ㸪ᇙ✚࣭ୖ᪼㏿ᗘࡢ㐪࠸ࡼࡿࣔࢹࣝS1㸪S2࠾ࡼࡧ S4࡛ࡣ┤⥺ࡽⱝᖸୖฝ㸪ࣈࣟࢵࢡഴືࢆ௬ᐃࡋࡓࣔࢹࣝ S6㉥࠸ኴ⥺ࡢ࡛ࣛࣥࡣ
ୗฝ࠸࠺᫂☜࡞㐪࠸ࡀ⏕ࡌࡓ㸬S6ࡸFig. 37ࡢ㉥⥺ࡢࡼ࠺㸪ᇙ✚ᚋఱࡽࡢཎᅉ
࡛⏕ࡌࡓ༡᪉ྥࡢ୍ᐃゅᗘࡢഴືࢆ௬ᐃࡋࡓሙྜ㸪ᙜ↛༡ࡢ⇍ᡂᗘࡢᕪࡣ⏕ࡌࡿ㸬ࡋ
ࡋ㸪Fig. 37ࡢ㉥⥺࡛♧ࡉࢀࡿ࠾ࡾ㸪ᐃᖖ≧ែ࡛ࡢ⿕⇕ࡢሙྜ㸪୍ᵝ࡞ഴື࠾ࡼࡧഴື
ゅᗘࡀMTLഃῶᑡࡍࡿ≧ἣ࡛ࡣ㸪༡⦕ࡽ⦕ࡢᑕ⋡ࡢኚ⋡ࡣ㧗ᑕ⋡㧗 ࡃ࡞ࡿ࠸࠺⤖ᯝࡀᚓࡽࢀࡿ㸬ࡇࢀࡣ㸪ࣅࢺࣜࢼࢺᑕ⋡ࡢ ᗘᑐࡍࡿኚ⋡ࡀ㸪
ᑕ⋡ࡀ㧗࠸ࡁ࠸ࡇࡀ㉳ᅉࡍࡿ㸬ࡼࡗ୍࡚ᐃゅᗘࡢഴື࡛ࡣ㸪⦕┦࠾࠸࡚᭱ࡶ
ᑕ⋡ࡢኚࡀࡁ࠸ࡇ࡞ࡾ㸪༡᪉ྥࡢ㊥㞳ᑕ⋡ࡢ㛵ಀࡣཎ⌮ⓗ⥺ᙧ࡛ࡣ࡞
ࡃୗฝ࡞ࡿࡇࡀ♧၀ࡉࢀࡿ㸬ࡉࡽ㸪ᮏ◊✲ࡢࣈࣟࢵࢡഴືࣔࢹࣝS6ࡼࡾ㸪ᇙἐ
%Ro 0.6-0.8 0.8-1.0 1.0-1.2 1.4-1.6 1.6-1.8 1.8-2.0 2.0-2.2 2.2-2.4 2.4-2.6 2.6-2.8 2.8-3.0 3.0-3.20.4-0.60.2-0.4 3.2-3.4 3.4-3.61.2-1.4
N–S direction N–S direction
depth depth
bottom 27 km 1096Υ94 mW/m2 (HF 121 mW/m2) 㼎㼡㼞㼕㼍㼘㻌㼐㼑㼜㼠㼔㻦㻌6.0 km bottom 20 km 709Υ63 mW/m2 (HF 123 mW/m2) 㼎㼡㼞㼕㼍㼘㻌㼐㼑㼜㼠㼔㻦㻌5.0 km
bottom 27 km 750Υ59.5 mW/m2 (HF 86.5 mW/m2) 㼎㼡㼞㼕㼍㼘㻌㼐㼑㼜㼠㼔 㻺㻦㻌5.0 km, S: 3.0 km
NS S1 S2 S4 S6
present MTL after Yokokura et al. (1996)
bottom 27 km 1055Υ90 mW/m2 (HF 117 mW/m2) 㼎㼡㼞㼕㼍㼘㻌㼐㼑㼜㼠㼔㻦㻌6.0 km
Fig. 34. Comparisons of thermal models S1, S2, S4, and S6 for the Izumi sedimentary basin in the N–S direction. Terrestrial heat flow (HF) depends on heat flux of a bottom boundary and heat production of the sediment and basement rocks. Gradation of colors from green to dark yellow represents difference of vitrinite reflectance ranging from 0.2%Ro to 3.6%Ro.
?
ࠉ71 Ma65 Ma60 Ma
䚷2 km
䚷0 km 䚷4 km 䚷6 km 䚷8 km 䚷10 km
time
%Ro 0.6-0.8 0.8-1.0 1.0-1.2 1.4-1.6 1.6-1.8 1.8-2.0 2.0-2.2 2.2-2.4 2.4-2.6 2.6-2.8 2.8-3.0 3.0-3.20.4-0.60.2-0.4 3.2-3.4 3.4-3.61.2-1.4
N–S direction
depth
depth depth
depth
a c b d
ࠉ2 kmࠉ0 km ࠉ4 km ࠉ6 km ࠉ8 km ࠉ10 km
N–S direction
ࠉ0 km3 km6 km9 km
exposure surfaceburial pass basement boundarybasin surface
NS
model S2 Timing of maximum depth
NS NS
ithotherm ithochronous lines50Υ10Υ
ࠉ2 km
ࠉ0 km ࠉ4 km ࠉ6 km ࠉ8 km ࠉ10 km ࠉ2 km
ࠉ0 km ࠉ4 km ࠉ6 km ࠉ8 km
N–S direction
ࠉ0 km3 km6 km9 km
ࠉ0 km3 km6 km9 km
Timing of uplift and deformation
Ќ c
Ќ d b Ѝ
After uplift and deformationcontour interval
Fig. 35. Burial conditions and time snapshots of the isotherm and vitrinite maturation distribution of the Model S2 (difference of the subsidence and uplift rate and timing).
䚷71 Ma65 Ma60 Ma
depth
2 km
0 km 4 km 6 km 8 km 10 km
depth
2 km
0 km 4 km 6 km 8 km 10 km
time
ࠉ71 Ma65 Ma60 Matime
䚷71 Ma65 Ma60 Matime
ࠉ71 Ma65 Ma60 Matime
%Ro 0.6-0.8 0.8-1.0 1.0-1.2 1.4-1.6 1.6-1.8 1.8-2.0 2.0-2.2 2.2-2.4 2.4-2.6 2.6-2.8 2.8-3.0 3.0-3.20.4-0.60.2-0.4 3.2-3.4 3.4-3.61.2-1.4
Northern margin Northern margin Southern margin Southern margin Fig. 36. Comparison of the burial histories in Model S2 (difference of the subsidence and uplift rate and timing) and Model S6 (block tilting after general heating).
S2 S6
S2 S6
ຠᯝࡢ⏕ࡌࡿࡼ࠺࡞㠀ᐃᖖ≧ែ࡛ࡢ⿕⇕࠾࠸࡚ࡶᐃᖖ≧ែ⿕⇕ྠᵝୗฝࡢഴྥ
࡞ࡿࡇࡀ♧ࡉࢀࡓ㸬ࡍ࡞ࢃࡕ㸪༡ࡢኚࡀ༡⨨⥺ᙧ࡞ࡿࡓࡵࡣ㸪ഴືゅᗘ ࡀMTLഃቑຍࡍࡿࡼ࠺࡞㸪ୖฝࡢ᩿㠃ᙧ≧ࢆἨሁ✚┅ࡀ♧ࡍሙྜࡔࡅ࡛࠶ࡿ㸬ࡋ
ࡋ㸪ሁ✚┅ࡢ༡᩿㠃ࡣ㸪ୖฝࡼࡾࡴࡋࢁ┤⥺ⓗࡲࡓࡣୗฝࡢᙧ≧⪃࠼ࡽࢀ࡚࠸
ࡿ㸦࠼ࡤ㸪ఀ⸨, 1996㸧㸬ᮏ◊✲㸦➨㸲❶㸧ࡽ᥎ᐃࡉࢀࡓἨሁ✚┅ࡢⓎ㐩㐣⛬
ྠᵝࡢᶓࡎࢀᘬᙇሙ࡛ᙧᡂࡋࡓሁ✚┅࡛ࡣ㸪ሁ✚┅ഃ㠃࡛ࡢୗฝࡢ⦆ࡸ࡞᩿ᒙ㠃ࡢⓎ
㐩ࢆ≉ᚩࡋ࡚࠾ࡾ㸦Fig. 25B㸸Wu et al. 2009㸧㸪ࢧࣥࢻࣔࢹࣝ࠾ࡼࡧ⮬↛ࡢሁ✚┅ࡶ
᩿㠃ᙧ≧ࡣࡋࡤࡋࡤୗฝࡢ᩿㠃ࡀ♧ࡉࢀ࡚࠸ࡿ㸦Wu et al. 2009㸹Dooley and Schreurs, 2012㸧㸬ࡍ࡞ࢃࡕ㸪Ἠᒙ⩌ࡢࣈࣟࢵࢡഴືࡼࡿ༡ࡢ⿕⇕≧ែࡢ㐪࠸ࡼࡿᑕ⋡ࡢ༡
ኚ࡛ࡣ㸪ᮏ◊✲࡛ᚓࡽࢀࡓ༡᪉ྥࡢኚࡢ⥺ᙧⓗኚࢆㄝ᫂ࡍࡿࡇࡣ࡛ࡁ࡞࠸㸬
᪉㸪༡࡛ࡢỿ㝆ᵝᘧࡢ㐪࠸ࡼࡿᇙ✚ຠᯝࣔࢹ࡛ࣝࡣ㸪ሁ✚┅ࡢᗏ㒊ࡢᙧ≧ࢆ┤⥺ⓗ
࡞ᩳ㠃ࡋࡓሙྜᑕ⋡ࡢ༡㊥㞳ࡼࡿኚࡣ┤⥺ⓗࡲࡓࡣୖฝ࡞ࡾ࠺ࡿ᮲௳ࡀ Ꮡᅾࡍࡿࡇࡀࣔࢹࣝࡼࡾ♧၀ࡉࢀࡓ㸬MTL㏆ഐࡢ⿕⇕㐣⛬㛵ࡋ࡚ࡣ㸪ᮏࣔࢹ࡛ࣝ⪃
࠼ࡿࡍ࡚ࡢࢣ࣮ࢫࡀ༑ศ࡞᳨ウࡉࢀࡓࡣゝ࠼࡞࠸ࡀ㸪ᑡ࡞ࡃࡶἨᒙ⩌⦕㒊ࡽ
㒊┦ࡅ࡚ࡢ᭷ᶵ≀⇍ᡂኚࡢࡲ࡞≉ᚩࡀᇙἐຠᯝࣔࢹ࡛ࣝ⌧ྍ⬟࡛࠶ࡿࡇ
ࡣ᫂ࡽ࡞ࡗࡓ㸬ࡼࡗ࡚㸪ᩘ್ࣔࢹࣝࡼࡿ⿕⇕ࡢ᳨ウ࡛ࡣ㸪Ἠᒙ⩌ࡢ༡᪉ྥࡢ⿕
⇕ഴྥࡢせᅉࡣ㸪ሁ✚┅ࡢ༡᪉ྥ⏕ࡌࡓᇙ✚࣭ୖ᪼㏿ᗘࡢ㐪࡛࠶ࡿ⤖ㄽࡉࢀࡿ㸬
calculated Ro (%)
distance from the northern margin of the Izumi basin (km)
Basin thermal simulation Ro in N-S direction
y = −0.126x + 1.73
S1
S2 S4 S6
steady state heat condition for a long time (20–30 m.y.) before block tilting.
Rm in N-S direction Models
0 1 2 3 4 5 6 7 8 9 10
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Fig. 37. Variations in N–S-oriented vitrinite reflectance values (Ro) of Models S1, S2, S4, S6, and steady state heating condition, compared to distance from the northern marginal unconformity.
Note that differental subsidence and uplift rates is a convex trend
in Models S1, S2, and S4, but block tilting after general heating is
downward-convex trend in Models S6 and red line.
㸴ࡲࡵ
Ἠᒣ⬦ᆅᇦࡢୖ㒊ⓑள⣔Ἠᒙ⩌࠾࠸࡚㸪ሁ✚≀ࡢ᭷ᶵ≀⇍ᡂᣦᶆ࡛࠶ࡿࣅࢺࣜࢼ
ࢺᑕ⋡㸪ࣃࢱࢺࣇࢵࢩ࣭ࣙࣥࢺࣛࢵࢡᖺ௦ࡸ᪤ሗᖺ௦㸪⇕ᣑᩓࡢᩘ್ࣔࢹࣝࢆ
⏝࠸࡚㸪ሁ✚┅ࡢ⿕⇕ྐࢆඖࡋࡓ㸬Ἠᒣ⬦ᆅᇦ࡛ࡣ㸪ሁ✚┅ࡢ⦕㒊᭷ᶵ≀⇍ᡂ ࡀ㐍ࡴᒁⓗ࡞ഴྥࡀ㸪ࣅࢺࣜࢼࢺᑕ⋡࠾ࡼࡧRock-Eval Tmax࡛☜ㄆࡉࢀࡓ㸬Ἠ ᒣ⬦ᆅᇦす㒊࠾ࡼࡧ୰㒊ࡢἨᒙ⩌࠾ࡅࡿ➼⇍ᡂ㠃ࡣ㸪⦕ࡢᇶ┙ᩚྜᖹ⾜࡞ᮾ
ᮾ―す༡す㸦ᴫࡡN78°E᪉ྥ㸧ࡢ㉮ྥࡢ⣙19ᗘ༡ഴᩳ࡛࠶ࡾ㸪ࡑࡢ⇍ᡂ໙㓄ࡣ⣙0.400%
㸭kmぢ✚ࡶࡽࢀࡓ㸬Ἠᒙ⩌ࡢ≉ᚩⓗ࡞ ᗘᵓ㐀ࡢせᅉࡋ࡚㸪ሁ✚ᚋࡢMTLࢆ㍈
ࡋࡓᆅᒙࡢ༡ഴື㸪Ἠᒙ⩌ศᕸᇦࡢ᪉つᶍ⇕※ࡀᏑᅾࡋࡓྍ⬟ᛶ㸪࠾ࡼࡧሁ✚
┅ᇙἐ㐣⛬㛵㐃ࡋࡓ༡ࡢሁ✚㏿ᗘࡢ㐪࠸ࡼࡿ ᗘᵓ㐀ࡢ」㞧ࡀ⏕ࡌࡓྍ⬟ᛶࡢ㸱 ࡘࢆ௬ᐃࡋࡓ㸬
Ἠᒙ⩌ࡢ⦕㒊ࢆྵࡴ㡿ᐙ̿Ἠᖏ࠾࠸࡚㸪ࢪࣝࢥ࣭ࣥࣃࢱࢺࡢࣇࢵࢩ࣭ࣙࣥ
ࢺࣛࢵࢡᖺ௦ࢆ ᐃࡋࡓ㸬ࡑࡢ⤖ᯝ᪤Ꮡࡢ◊✲ࡢᨺᑕᖺ௦ࢆࡶᙜᆅᇦࡢ෭༷ྐࢆ᥎ ᐃࡋࡓ㸬Ἠᒣ⬦ᆅᇦࡢἨᒙ⩌㸪Ἠ༡ὶ⣠ᒾ㢮㸪࠾ࡼࡧᑼࢲ࣓ࣟᒾࡢ⇕ᖺ௦Ꮫⓗࢹ
࣮ࢱࡽࡣ㸪ᮏᆅᇦࡣ㸱ࡘࡢᆅ㉁༢ඖࢆྵࡴ༢୍ࡢࣈࣟࢵࢡ࡛ࡢ෭༷ྐ࣭ୖ᪼ྐࢆ᥎ᐃࡍ
ࡿࡇࡣᅔ㞴࡛࠶ࡾ㸪෭༷ྐࡢ㐪࠸ࡼࡾᮾすᛶࡢ᩿ᒙ࣭᩿ᒙ⩌࡛⏬ࡉࢀࡓ㸱ࡘࡢᆅ㉁ࣈ
ࣟࢵࢡ༊ศࡍࡿࡇࡀ࡛ࡁࡿุ᩿ࡉࢀࡓ㸬ࡲࡓ㸪⇕ᖺ௦Ꮫⓗゎ㔘ࡽἨᒙ⩌᪉ࡢ
つᶍ⇕※ࡢᏑᅾࡣྰᐃࡉࢀࡓ㸬Ἠሁ✚┅ࡢᙧᡂ㛵ࡋ࡚㸪⦕࡛㐃⥆࡞㞜⾜≧ࡢ᩿
ᒙ⩌ࢆక࠺Ἠሁ✚┅ࡢⓎ㐩ࡀ♧၀ࡉࢀ㸪ᶓࡎࢀᘬᙇሙ࡛ሁ✚┅ࡀᙧᡂࡋࡓุ᩿ࡉࢀࡓ㸬
Ἠᒣ⬦ᮾ㒊ᆅᇦ࡛ࡣ㸪Ἠᒙ⩌ࡢᇙἐࡽୖ᪼ࡢኚ㑄ࡀ 5 m.y.௨ෆࡢ▷ᮇ㛫࡛⏕ࡌ㸪
68.9–66.2 Maᮇ㛫࡞⿕⇕ࢆཷࡅࡓྍ⬟ᛶࡀ㧗࠸ࡇࡀࣅࢺࣜࢼࢺᑕ⋡ࡢࣔࢹࣝィ
⟬ࡼࡾ♧၀ࡉࢀࡓ㸬ࡇࢀࡣ㸪ᕷᕝ㸦1981㸧ࡀ⪃ࡋࡓ㸪ሁ✚┅୰ᚰࡢᮾࡢ⛣ືᪧ ሁ✚┅୰ᚰࡢୖ᪼ࢆ⧞ࡾ㏉ࡍἨሁ✚┅ࡢᮾ㐍㐣⛬ࢆᫎࡋࡓࡶࡢࡶࡋࢀ࡞࠸㸬
ሁ✚ᚋࡢMTLࢆ㍈ࡋࡓᆅᒙࡢ༡ഴື㸪࠾ࡼࡧሁ✚┅ᇙἐ㐣⛬㛵㐃ࡋࡓ༡ࡢሁ✚
㏿ᗘࡢ㐪࠸ࡼࡿ ᗘᵓ㐀ࡢ」㞧࡛⏕ࡌࡿ ᗘᵓ㐀᭷ᶵ≀⇍ᡂ≧ែࢆලయⓗ᳨ウࡍ
ࡿࡓࡵ㸪ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ㸬ࡇࡢࣔࢹࣝࡣHutchison㸦1985㸧ࡢ⌮ㄽࢆᇶ㸪 ሁ✚┅ࡢୖ᪼ࡸᾏᗏ㠃ࡢỿ㝆ᑐᛂࡍࡿࡼ࠺ኚ᭦ࢆຍ࠼ࡓ㸬ᇙἐຠᯝࡢᙳ㡪ࢆ᳨ウࡍࡿ
ࡓࡵࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࡽ㸪ᛴ㏿࡞ỿ㝆ࡣࡑࡢỿ㝆㏿ᗘᛂࡌ࡚⇕ὶ㔞ᆅ ໙㓄 ࡢῶᑡࢆࡶࡓࡽࡍࡀ㸪ᛴ㏿࡞ୖ᪼ࡘ࠸࡚ࡣ⤖ᯝⓗୖ᪼㏿ᗘࡀࡁ࠸ ᗘᒚṔࡀప ࡍࡿࡇࡀ♧၀ࡉࢀࡓ㸬ࡲࡓ㸪ᾏᗏ㠃ࡢỿ㝆ࡣ᭱ỿ㝆ࡢ ᗘ࠾ࡼࡧୖ᪼ࡢ ᗘ
≧ែࢆࡼࡾపୗࡉࡏࡿຠᯝࡀ࠶ࡿࡇࡀ♧၀ࡉࢀࡓ㸬ሁ✚┅ࡢලయⓗ࡞ᇙἐࣔࢹ࡛ࣝࡣ㸪 ሁ✚ୖ᪼ࡢ㏿ᗘࡢ㐪࠸࡛ሁ✚┅ࡢ༡᪉ྥ⇍ᡂ໙㓄ࢆᙧᡂ࡛ࡁࡓ㸬ሁ✚┅᩿㠃ࡀ┤⥺
ⓗ༡᪉῝ࡃ࡞ࡿሙྜ㸪༡㊥㞳ᑐࡍࡿኚഴྥࡣୖฝࡲࡓࡣ┤⥺ⓗ࡞ࡗࡓ㸬
᪉㸪༡ഴືࣔࢹ࡛ࣝࡶ༡᪉ྥ⇍ᡂ໙㓄ࡀ⏕ࡌࡿࡀ㸪ࡑࡢኚഴྥࡣཎ⌮ⓗୗฝ
࡛࠶ࡿࡇࡀ♧၀ࡉࢀࡓ㸬ࡼࡗ࡚㸪Ἠᒙ⩌ࡢ༡᪉ྥࡢ⿕⇕ഴྥࡢせᅉࡣ㸪ሁ✚┅ࡢ༡
᪉ྥ⏕ࡌࡓᇙ✚࣭ୖ᪼㏿ᗘࡢ㐪࡛࠶ࡿ⤖ㄽࡉࢀࡿ㸬