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南太平洋海域調査研究報告 No.56（2015年3月）
OCCASIONAL PAPERS No.56（March 2015）✀Ꮚᓥ࡟ศᕸࡍࡿᅄ୓༑ᖏࡢ㡫ᒾࡢኚᙧ࡟క࠺≀㉁⛣ື
໭ᮧ᭷㎿ 1, 2࣭ᑠ℈ ㈼ 3࣭ᮧ㔛 ᫭ 3࣭㛗㇂ᕝுኴ 3࣭➟ཎៅᖹ 3࣭┾㑓೺ே 3࣭ᕝ➃カ௦ 4

Mass Transfer Associated with Deformation in Shales fromthe Shimanto Belt in Tanegashima Island, Southwest Japan
KITAMURA Yujin1, 2, KOHAMA Ken3, MURASATO Kou3, HASEGAWA Ryota3,
KASAHARA Shimpei3, MANABE Kento3 and KAWABATA Kuniyo4
1: 㮵ඣᓥ኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉2: 㮵ඣᓥ኱Ꮫᅜ㝿ᓥᕋᩍ⫱◊✲ࢭࣥࢱ࣮
3: 㮵ඣᓥ኱Ꮫ⌮Ꮫ㒊
4: 㮵ඣᓥ኱Ꮫ⥲ྜ◊✲༤≀㤋
1: Graduate School of Science and Engineering, Kagoshima University
2: Research Center for the Pacific Islands, Kagoshima University
3: Faculty of Science, Kagoshima University
4: Kagoshima University Museumせ᪨ᅄ୓༑ᖏࡣ௜ຍయᙧᡂࡸᆅ㟈Ⓨ⏕ࡢᆅ㉁ⓗ⑞㊧ࢆከࡃໟྵࡍࡿࡇ࡜࠿ࡽࠊᾏὒࣉ࣮ࣞࢺࡢỿࡳ㎸ࡳ࡟క࠺ࣉ࣮ࣞࢺቃ⏺ࡢㅖ⌧㇟ࢆ⌮ゎࡍࡿ㘽࡜࡞ࡿࠋࣉ࣮ࣞࢺቃ⏺ࡢືⓗ⌧㇟ࢆᛕ㢌࡟⨨࠸ࡓ௜ຍయ◊✲ࡣ༡ᾏࢺࣛࣇἢᓊ࡛⾜ࢃࢀ࡚࠸ࡿࡀࠊ⌰⌫ᾏ⁁ἢ࠸࡛ࡣࡲࡔ⾜ࢃࢀ࡚࠸࡞࠸ࠋᮏ◊✲࡛ࡣ✀Ꮚᓥ࡟࠾࠸࡚ࠊᆅ㉁ㄪᰝ࡜໬Ꮫ⤌ᡂศᯒ࠿ࡽᒾ▼ࡢኚᙧࢆᐃ㔞ࡋࠊࡇࡢᆅᇦࡢ௜ຍయᙧᡂྐࢆ㆟ㄽࡍࡿ஦ࢆ┠ⓗ࡜ࡍࡿࠋㄪᰝࡢ⤖ᯝࠊẚ㍑ⓗ㧗 ࡟ࡉࡽࡉࢀࡓ࡜ᛮࢃࢀࡿ✀Ꮚᓥࡢ㡫ᒾ࡟ࡣᅽຊ⁐ゎࡀⓎ㐩ࡋ࡚࠾ࡾࠊỿࡳ㎸ࡳ࡟ࡼࡿᇙἐ࡛࡞ࡃࠊ῝ᡂᒾయࡢୖ᪼࡟ࡼࡿ⇕ⓗᙳ㡪ࢆᙉࡃཷࡅ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋࡣࡌࡵ࡟
ᅄ୓༑ᖏࡣす༡᪥ᮏࡢኴᖹὒഃ࡟ศᕸࡍࡿⓑள⣖࠿ࡽ᪂➨୕⣖࡟ᙧᡂࡉࢀࡓ௜ຍయ࡜࿧ࡤ
ࢀࡿᆅ㉁య࡛࠶ࡿࠋ௜ຍయ࡜ࡣࠊᾏὒࣉ࣮ࣞࢺࡀ኱㝣ࣉ࣮ࣞࢺࡢୗ࡟ỿࡳ㎸ࡴ㝿࡟ࠊᾏὒࣉ࣮ࣞࢺୖࡢሁ✚≀ࡀࡣࡂྲྀࡽࢀ࡚኱㝣ഃ࡟௜ຍࡋ࡚ᙧᡂࡉࢀࡿᆅ㉁య࡛࠶ࡾࠊ≉࡟す༡᪥ᮏࡣ኱㝣ഃ࠿ࡽኴᖹὒഃ࡟࠿ࡅ࡚㡰࡟᪂ࡋࡃ࡞ࡿࡼ࠺࡟௜ຍయࡀศᕸࡋ࡚࠸ࡿࠋ᪥ᮏิᓥ௜㏆࡛ࡣ௜ຍయࡀࣉ࣮ࣞࢺቃ⏺ࡢୖ┙ࢆ࡞ࡋࠊࡑࡢᗏ㒊ࡢࣉ࣮ࣞࢺቃ⏺࡛ᾏ⁁ᆺᕧ኱ᆅ㟈ࡀⓎ⏕ࡍࡿࠋ⌧ᅾᙧᡂ୰ࡢ௜ຍయࡣ༡ᾏࢺࣛࣇࡢἢࡗࡓᾏᗏ࡟ศᕸࡋ࡚࠾ࡾࠊᾏὒ᥀๐࡞࡝ࡢ᪉ἲ࡛ᆅ㟈◊✲ࡀ⾜ࢃࢀ࡚࠸ࡿࠋᅄ୓༑ᖏࡣ㝣ୖ࡟ᗈࡃศᕸࡋ࡚࠸ࡿࡇ࡜࠿ࡽࠊ⌧ᅾࡢࣉ࣮ࣞࢺቃ⏺⌧㇟ࢆゎࡁ᫂࠿ࡍࡓࡵࡢ㘽࡜ࡋ࡚㔜せ࡛࠶ࡿࠋ
KITAMURA Yujin, KOHAMA Ken, MURASATO Kou, HASEGAWA Ryota, KASAHARA Shinpei, MANABE Kento and KAWABATA Kuniyoᮏ◊✲࡛ࡣỿࡳ㎸ࡴࣉ࣮ࣞࢺቃ⏺࡟࠾ࡅࡿᒾ▼ࡢኚᙧࢆᆅ⌫໬Ꮫⓗ࡟ᐃ㔞ࡋࠊኚᙧ࡜࡜ࡶ࡟≀㉁⛣ືࢆ᫂ࡽ࠿࡟ࡍࡿࠋ≉࡟✀Ꮚᓥᆅᇦࢆᑐ㇟࡜ࡍࡿ஦࡛ࠊ⌰⌫ᾏ⁁ᇦ࡛ࡢࣉ࣮ࣞࢺቃ⏺⌧㇟࡟ࡘ࠸࡚㆟ㄽࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋᆅ㉁ᴫㄝ
௜ຍస⏝࡟ࡣ 2 ✀㢮࠶ࡾࠊὸ࠸ᡤ࡛ᾏὒࣉ࣮ࣞࢺୖࡢሁ✚≀ࡀ኱㝣ࣉ࣮ࣞࢺ࡟ࡼࡗ࡚๤ࡂ
ྲྀࡽࢀࡿࠕ๤ࡂྲྀࡾ௜ຍࠖ࡜ࠊẚ㍑ⓗ῝࠸ᡤ࡛኱㝣ࡢୗ࡟௜ຍࡍࡿࠕᗏ௜ࡅ௜ຍࠖ࡜࿧ࡤࢀ
ࡿࠋ๤ࡂྲྀࡾ௜ຍ࣭ᗏ௜ࡅ௜ຍࡍࡿ㝿࡟ࡣࠊᆅᒙࡀ᩿ᒙ࡛ษࢀ࡚௜ຍࡍࡿࠋ๤ࡂྲྀࡾ௜ຍࡢሙྜࡣẚ㍑ⓗὸ࠸ሙᡤ࡛㉳ࡇࡾࠊᆅᒙ㸦ሁ✚≀㸧ࡶẚ㍑ⓗᰂࡽ࠿࠸ࡢ࡛᩿ᒙ࡛ษࢀ࡚ࡶ኱ࡁ࡞ᆅ㟈ࡣ㉳ࡇࡉ࡞࠸ࠋ୍᪉ࠊᗏ࡙ࡅ௜ຍࡣࣉ࣮ࣞࢺቃ⏺᩿ᒙࡢᒅ᭤࡟కࡗ࡚㉳ࡇࡿ࡜⪃࠼ࡽࢀ࡚࠾ࡾࠊᾏ⁁ᆺᕧ኱ᆅ㟈࡜ᐦ᥋࡞㛵㐃ࡀ࠶ࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿ㸦KITAMURA et al. 2005,KITAMURA and KIMURA 2012㸧ࠋᗏ௜ࡅ௜ຍࡉࢀࡓᆅ㉁యࡣ㠀ᖖ࡟ᙉࡃኚᙧࡋ࡚࠾ࡾࠊࢸࢡࢺࢽ
ࢵࢡ࣓ࣛࣥࢪࣗ࡜࿧ࡤࢀࡿ୍✀ࡢ᩿ᒙᒾ࡟࡞ࡗ࡚࠸ࡿࠋᅄ୓༑ᖏ࡟ࡣ๤ࡂྲྀࡾ௜ຍࡉࢀࡓᆅ㉁య࡜ᗏ௜ࡅ௜ຍࡉࢀࡓᆅ㉁య
㸦ࢸࢡࢺࢽࢵࢡ࣓ࣛࣥࢪࣗ㸧ࡀࢧࣥࢻ࢖ࢵࢳ≧࡟஺஫࡟ศᕸࡋ࡚࠸ࡿࠋᅄᅜࡢᅄ୓༑ᖏ࡟࠾ࡅࡿࢸࢡࢺࢽࢵࢡ࣓ࣛࣥࢪࣗࡢ◊✲ࡢ⤖ᯝࠊࡇࡢ࣓ࣛࣥࢪࣗࡣࣉ࣮ࣞ
ࢺቃ⏺ࡢ᩿ᒙኚᙧᖏࡑࡢࡶࡢ࡛࠶ࡗࡓ࡜⪃࠼ࡽࢀ࡚࠸ࡿ㸦KITAMURA et al. 2005㸧
ࠋࡑࡋ࡚ࡑࡢ࣓ࣛࣥࢪࣗࡢ᭱ୖ㒊࡟≉࡟ኚᙧࡀ㞟୰ࡋࡓ᩿ᒙࡀ࠶ࡾࠊࡑࡇ࠿ࡽᆅ㟈ࡢ໬▼࡜࿧ࡤࢀࡿᆅ㟈᫬ࡢᦶ᧿⇕࡛⁐⼥ࡋࡓᒾ▼࡛࠶ࡿࢩ࣮ࣗࢻࢱ࢟ࣛ࢖ࢺࡀⓎぢࡉࢀࡓࠋࡇࡢࡇ࡜࠿ࡽࠊࡇࡢ᩿ᒙࡣ㐣ཤ࡟ᾏ⁁ᆺᕧ኱ᆅ㟈ࢆ㉳ࡇࡋࡓ࡜⤖ㄽ࡙ࡅࡽࢀࡓࠋ
㏆ᖺࡢ◊✲࡛ࠊࢸࢡࢺࢽࢵࢡ࣓ࣛࣥࢪࣗ⮬యࡀ኱つᶍ࡞ࣉ࣮ࣞࢺቃ⏺᩿ᒙᖏ࡛ࠊほ ࡟
ࡼࡗ࡚᭱㏆᫂ࡽ࠿࡟࡞ࡗ࡚ࡁࡓࡺࡗࡃࡾᆅ㟈㸦ࢫ࣮ࣟᆅ㟈㸧ࢆ㉳ࡇࡋࡓྍ⬟ᛶࡀᣦ᦬ࡉࢀ࡚
࠸ࡿ㸦KITAMURA and KIMURA 2012㸧ࠋࡇࡢࡼ࠺࡟ࠊᅄ୓༑ᖏࡢᒾ▼ࡣᕧ኱ᆅ㟈ࡸᚤᑠ࡞ᆅ㟈ࢆ㉳ࡇࡍࣉ࣮ࣞࢺቃ⏺ࡢጼࢆ㠀ᖖ࡟≧ែࡼࡃಖᏑࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀ࡚࠾ࡾࠊ኱㝮ㅖᓥ࡛ࡢㄪᰝࡣ⌰⌫ᾏ⁁ᇦ࡛ࡢᆅ㟈ࡸ௜ຍయᙧᡂ࡟㛵ࡍࡿ♧၀ࢆ࠶ࡓ࠼ࡿࡶࡢ࡜ᮇᚅࡉࢀࡿࠋ✀Ꮚᓥࡢᆅ㉁ࡣࠊᇶ┙࡜࡞ࡿ⇃ẟᒙ⩌࡜࿧ࡤࢀࡿ◁ᒾࠊ㡫ᒾࡢ஫ᒙࢆ୙ᩚྜ࡟ⱼ㛗ᒙ⩌ཬࡧቑ⏣ᒙࠊ㛗㇂ᒙࠊ➉அᕝᒙࡀそࡗ࡚࠸ࡿ㸦✀ᏊᓥᆅᏛྠዲ఍ 1984㸧ࠋ⇃ẟᒙ⩌ࡣ㛛಴ᓮᒙࠊ❧▼ᒙࠊすஅ⾲ᒙ࠿ࡽ࡞ࡾࠊሁ✚ᖺ௦ࡣྂ➨୕⣖ጞ᪂ୡ࡜ࡉࢀࡿࠋ⦓ᐦ࡞ᒾ▼࡛ࠊⲴ㔜⑞ࡸ₏⑞࡞࡝ࡢሁ✚ᵓ㐀ࡀࡼࡃࡳࡽࢀࠊ᩿ᒙࠊ〩᭤ࡀⓎ㐩ࡋ࡚࠸ࡿࠋⱼ㛗ᒙ⩌ࡣ⏣௦ᒙࠊἙෆᒙࠊ኱ᓮᒙ࠿ࡽ࡞ࡾࠊሁ✚ᖺ௦ࡣ୰᪂ୡ๓ᮇ࡛࠶ࡿࠋᓥࡢ༡ᮾ㒊࡟ศᕸࡋࠊ໭࡯࡝ᒙཌࡀῶᑡࡍࡿࠋቑ⏣ᒙࠊ㛗㇂ᒙࠊ➉அᕝᒙࡣ඲஧⪅ࢆ୙ᩚྜ࡟そ࠺➨ᅄ⣖ࡢሁ✚≀࡛࠶ࡿࠋㄪᰝ᪉ἲ✀Ꮚᓥ࡟࠾ࡅࡿᆅ㉁ㄪᰝࢆ 2014 ᖺ 1 ᭶ 23 ᪥㹼25 ᪥ࡢ᪥⛬࡛ᐇ᪋ࡋࡓࠋᓥෆ඲ᇦࡢᆅ㉁ࡢ
㟢ฟ≧ἣࢆ☜ㄆࡋࠊ
Ἶ㉁࡞ᒾ▼ࡀ࠶ࡿሙᡤ࡛ࡣヨᩱ᥇ྲྀࢆ⾜ࡗࡓࠋヨᩱࡣ 4 ࢝ᡤ࡛᥇ྲྀࡋࡓࠋ

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Mass Transfer Associated with Deformation in Shales from the Shimanto Belt in Tanegashima Island, Southwest Japan

ヨᩱࡣᩚᙧࡋࢫࣛ࢖ࢻ࢞ࣛࢫ࡟᥋╔ࡋࡓࡢࡕࠊ⣙ 30ȣm ࡢཌࡉࡲ࡛◊☻ࡋ࡚㢧ᚤ㙾ほᐹ⏝ࡢᒾ▼ⷧ∦ࢆసᡂࡋࡓࠋࡇࢀࢆ㢧ᚤ㙾ୗ࡛ほᐹࡍࡿ஦࡛㖔≀ࡸኚᙧࡢグ㍕ࢆ⾜࠸ࠊᚋ㏙ࡢᅽຊ⁐ゎࢩ࣮࣒ࡢほᐹࢆ⾜࠺ࠋヨᩱࡢ୍㒊ࡣ⢊ᮎ࡟ࡋࡓࡢࡕ⺯ග X ⥺ศᯒࢆ⾜࠸ࠊ୺せඖ⣲ࡢ㔞ẚࢆ ᐃࡍࡿࠋᅽຊ⁐ゎࢩ࣮࣒࡜ඖ⣲⤌ᡂ࠿ࡽୗグࡢ࢔࢖ࢯࢥࣥἲࢆ⏝࠸࡚య✚ኚ໬ࢆホ౯ࡍࡿࠋࡑࡢయ✚ኚ໬ࡀᒾ▼ࡢᅽᐦ࡟ࡼࡿኚᙧ࡟ᐦ᥋࡟㛵ಀࡋ࡚࠸ࡿࡓࡵࠊᆅ㉁᝟ሗ࡜࠶ࢃࡏ࡚✀Ꮚᓥ࡟࠾ࡅࡿ௜ຍయᙧᡂྐࢆ㆟ㄽࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋ࢔࢖ࢯࢥࣥἲᒾ▼ࡢኚᙧࢆ໬Ꮫ⤌ᡂࢹ࣮ࢱࢆඖ࡟య✚ኚ໬࡜ࡋ࡚᥎ᐃࡍࡿᡭἲࢆ࢔࢖ࢯࢥࣥἲ࡜࿧ࡪࠋGRESENS㸦1967㸧࡟ࡼࡗ࡚ᥦ᱌ࡉࢀࠊGRANT㸦1986㸧࡟ࡼࡗ࡚☜❧ࡉࢀࡓࠋᅄ୓༑ᖏ࡟࠾࠸
࡚ࡣ KAWABATA et al.㸦2007㸧ࡀ㐺⏝ࡋࠊᆅ㉁యࡢ⿕⇕ ᗘ࡜ᅽຊ⁐ゎࡢⓎ㐩ᗘ࡟┦㛵ࡀ࠶ࡿࡇ࡜ࢆぢ࠸ࡔࡋࡓࠋࡲࡓࠊᗏ௜ࡅࡋࡓ࡜ᛮࢃࢀࡿࢸࢡࢺࢽࢵࢡ࣓ࣛࣥࢪࣗࡣ ᗘୖ᪼࡟ࡼࡗ࡚ᅽຊ⁐ゎࡢⓎ㐩ࡀᙉࡃಁ㐍ࡉࢀ࡚࠸ࡿࡇ࡜ࡶ♧ࡉࢀࡓࠋᅽຊ⁐ゎ࡜ࡣࠊᒾ▼ࡀᙉ࠸እຊࢆཷࡅࡓ࡜ࡁ࡟ࠊྵࡲࢀࡿ㖔≀ྠኈࡢ᥋ࡍࡿ㒊ศ࡟㐣኱࡞ᛂຊࡀ࠿࠿ࡾࠊ⁐ฟࡋᣑᩓࡋࡓࡢࡕ㞳ࢀࡓሙᡤ࡟ỿẊࡍࡿ⌧㇟࡛࠶ࡿࠋᒾ▼ⷧ∦ࡢ㙾ୗほᐹ࡛ࡣࡋࡤࡋࡤ㯮࠸➽≧ࡢᅽຊ⁐ゎࢩ࣮࣒࡜ࡋ࡚ほᐹࡉࢀࡿࠋ

⤖ᯝ
ᆅ㉁ㄪᰝ୰࡟ 14 ᆅⅬ࡛㟢㢌ࢆ☜ㄆࡋ୍㒊࡛ヨᩱ᥇ྲྀࢆ⾜ࡗࡓࠋྛᆅⅬ࡛ࡢᴫせࢆḟ࡟♧ࡍࠋ
Stop 1すஅ⾲ᕷఫྜྷ௜㏆ࠋ⇃ẟᒙ⩌すஅ⾲ᒙࡢ◁Ἶ஫ᒙࠋྛᒙࡣ⣙㸯cm ⛬ᗘࠋヨᩱࢆ᥇ྲྀࡋࡓ㸦ヨᩱ␒ྕ TNG201501㸧
ࠋ

Stop 2すஅ⾲ᕷఫྜྷ௜㏆ࠋ⇃ẟᒙ⩌すஅ⾲ᒙ୰ࡢ◁ᒾ࡟ࡢࡇࡿ₏⑞ࠋཌ࠸◁ᒾࡢ㟢㢌࡛࠶ࡿࡀࠊ㐨㊰ࢆᣳࢇ࡛ᾏᐇഃࡣἾᒾ࡜࡞ࡗ࡚࠸ࡿࠋ

Stop 3すஅ⾲ᕷ῝ᕝ௜㏆ࠋ⇃ẟᒙ⩌すஅ⾲ᒙࡢ◁ᒾࠋⲴ㔜⑞ࡀㄆࡵࡽࢀࡓࠋ

Stop 4すஅ⾲ᕷ∾ᕝ௜㏆ࠋ⇃ẟᒙ⩌すஅ⾲ᒙࡢ◁ᒾඃໃ◁Ἶ஫ᒙࠋ◁ᒾᒙ⣙ 4㹼5 cmࠊἾᒾᒙ⣙ 1 cm ⛬ᗘࠋヨᩱࢆ᥇ྲྀࡋࡓ㸦ヨᩱ␒ྕ TNG201502㸧
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Stop 5୰✀Ꮚ⏫Ლ₲௜㏆ࠋ⇃ẟᒙ⩌❧▼ᒙࡢἾᒾඃໃ◁Ἶ஫ᒙࠋἾ㉁㒊ࡣኚᙧࡋࠊᙅኚᡂࡋ࡚࠸ࡿࠋヨᩱࢆ᥇ྲྀࡋࡓ㸦ヨᩱ␒ྕ TNG201503㸧
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Stop 6༡✀Ꮚ⏫ୖ❧▼௜㏆ࠋ⇃ẟᒙ⩌❧▼ᒙࡢ◁Ἶ஫ᒙࠋᯖ≧⁐ᒾࡢ┳ᯈㄆࡵࡿࡶࠊ㟢㢌ࢆ☜ㄆ࡛ࡁࡎࠋ

Stop 7༡✀Ꮚ⏫㛛಴ᓁࠋ⇃ẟᒙ⩌㛛಴ᓮᒙࡢከⰍ㡫ᒾࢆྵࡴ◁ᒾ㡫ᒾ஫ᒙࠋ

Stop 8༡✀Ꮚ⏫⏣௦௜㏆ࠋⱼ㛗ᒙ⩌⏣௦ᒙࠋ⏣௦໬▼㟢㢌ࠋ㩭᪂ୡࡢከ✀ࡢ㈅໬▼ࢆྵࡴ㌿▼ᵝࡢ㟢㢌ࢆ☜ㄆࠋ⢒⢏ࠥᴟ⢒⢏◁ᒾࠋ

Stop 9༡✀Ꮚ⏫ୗ୰ᾏᓊࠋⱼ㛗ᒙ⩌Ἑෆᒙࡢ♟ᒾࠥ◁ᒾࠋ♟ᒾ࡟ᩳ஺ⴥ⌮ࢆㄆࡵࡓࠋ
KITAMURA Yujin, KOHAMA Ken, MURASATO Kou, HASEGAWA Ryota, KASAHARA Shinpei, MANABE Kento and KAWABATA Kuniyo

Stop 10 ༡✀Ꮚ⏫➉ᓮ௜㏆ࠋⱼ㛗ᒙ⩌኱ᓮᒙࠋ㐨㊰ษࡾ㏻ࡋࡢ㟢㢌ࠋ㔜ᶵ࡟ࡼࡿ᧿⑞࡟ἢࡗ࡚⻏ࡢᕢ≧㢼໬ࡀ㐍⾜ࡋ࡚࠸ࡿ࡜ᛮࢃࢀࡿ⏘≧ࢆㄆࡵࡓࠋStop 11 ༡✀Ꮚ⏫὾⏣௜㏆ࠋ༓ᗙࡢᒾᒇࠋⱼ㛗ᒙ⩌኱ᓮᒙ࡟Ⓨ㐩ࡋࡓᾏ㣗Ὕࠋ
Stop 12 ୰✀Ꮚ⏫≟ᇛᾏᓊࠋ㤿❧ࡢᒾᒇࠋⱼ㛗ᒙ⩌኱ᓮᒙ࡟Ⓨ㐩ࡋࡓᾏ㣗Ὕࠋ
Stop 13 すஅ⾲ᕷ႐ᚿ㮵ᓮࠋ⇃ẟᒙ⩌すஅ⾲ᒙࡢሢ≧◁ᒾࠋࢱ࣐ࢿࢠ≧㢼໬ࠊ⻏ࡢᕢ≧㢼໬ࡀⓎ㐩ࡋ࡚࠸ࡿࠋᾏᓊẁୣୖ࡟ࡣἾ㉁ᒾࡢ㟢ฟ᭷ࡾࠋ
Stop 14 すஅ⾲ᕷୖྂ⏣௜㏆ࠋ⇃ẟᒙ⩌すஅ⾲ᒙࡢ◁Ἶ஫ᒙࠋ㡫ᒾᵝ࡛㯮Ⰽ⦓ᐦ࡞ᒾ▼࡟๼㛤ࡀⓎ㐩ࠋ◁Ἶྛᒙࡣᩘ m ࠿ࡽᩘ༑ m ࡢཌࡉࢆᣢࡘࠋヨᩱࢆ᥇ྲྀࡋࡓ㸦ヨᩱ␒ྕ
TNG201504㸧ࠋ᥇ྲྀࡋࡓヨᩱࡢᒾ▼ⷧ∦ࢆసᡂࡋほᐹࡋࡓ࡜ࡇࢁࠊྛヨᩱࡣ○ᒌ≀࠿ࡽ࠿ࡽ࡞ࡾࠊ▼ⱥࡸᒾ∦ࡀ༟㉺ࡋ࡚࠸ࡿࠋᡤࠎ࡟㯮࠸➽≧ࡢᵓ㐀ࡀ☜ㄆࡉࢀࠊᅽຊ⁐ゎࢩ࣮࣒࡜ᛮࢃࢀࡿࠋ

ࡲ࡜ࡵ✀Ꮚᓥ࡛ࡢᆅ㉁ㄪᰝ࡟ࡼࡾࠊᅄ୓༑ᖏࢆᵓᡂࡍࡿ୺せ࡞㒊ศࡀ◁Ἶ஫ᒙ࡛࠶ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋἾ㉁㒊ࡣᙅኚᡂࢆཷࡅ࡚࠸ࡿ࡜ᛮࢃࢀࠊ⦓ᐦ࡛๼㛤ࡀⓎ㐩ࡋࡓ㡫ᒾ࡜࿧ࡪ࡭ࡁ⏘≧ࡢࡶࡢࡀከࡃㄆࡵࡽࢀࡓࠋ㝣ୖ࡟㟢ฟࡍࡿᅄ୓༑ᖏ࡜ࡋ࡚ࡣᾏ⁁ᐤࡾ࡟఩⨨ࡍࡿ࡟ࡶ㛵ࢃࡽࡎኚᡂᗘࡀ㧗࠸ࡢࡣࠊỿࡳ㎸ࡳ࡟క࠺ᇙἐࡼࡾࡶูࡢ⇕ⓗせᅉࡀ⪃࠼ࡽࢀࡿࠋᒇஂᓥ࡟㈏ධ
ࡋࡓ῝ᡂᒾయࡀࡑࡢ୍ᅉ࡜⪃࠼ࡽࢀࡿࠋ⇕ⓗᙳ㡪ࢆཷࡅࡓࡇ࡜࡟ࡼࡾᅽຊ⁐ゎࡢⓎ㐩ࡶಁ㐍ࡋࡓ࡜⪃࠼ࡽࢀࠊ௒ᚋ໬Ꮫ⤌ᡂศᯒ࡟ࡼࡗ࡚య✚ኚ໬ࡀᐃ㔞ࡉࢀࢀࡤ✀Ꮚᓥᆅᇦࡢᅄ୓༑ᖏࡢᆅྐ᚟ඖࡢ୍ຓ࡟࡞ࡿ࡛࠶ࢁ࠺ࠋᘬ⏝ᩥ⊩
GRANT, J. A. 1986. The Isocon Diagram; A Simple Solution to Gresens’s Equation for MetasomaticAlteration. Economic Geology, 81(8): 1976-1982.
GRESENS, R. 1967. Composition-Volume Relationships of Metasomatism. Chemical Geology, 2: 47-65.
KAWABATA, K., TANAKA, H. and KIMURA, G. 2007. Mass Transfer and Pressure Solution in Deformed
Shale of Accretionary Complex: Examples from the Shimanto Belt, Southwestern Japan. Journalof Structural Geology, 29: 697-711.
KITAMURA, Y. and KIMURA, G. 2012. Dynamic Role of Tectonic Mélange during Interseismic Processof Plate Boundary Mega Earthquakes. Tectonophysics, 568-569: 39-52.
KITAMURA, Y., SATO, K., IKESAWA, E., IKEHARA-OHMORI, K., KIMURA, G., KONDO, H., UJIIE, K.,
ONISHI, C. T., KAWABATA, K., HASHIMOTO, Y., MUKOYOSHI, H. and MASAGO, H. 2005. Mélange
and Its Seismogenic Roof Décollement: A Plate Boundary Fault Rock in the Subduction
Zone—An Example from the Shimanto Belt, Japan. Tectonics, 24(5): TC5012.
✀ᏊᓥᆅᏛྠዲ఍⦅ 1984㸬✀Ꮚᓥࡢᆅ㉁㸪124 㡫㸪すஅᓥᕷᩍ⫱ጤဨ఍㸪㮵ඣᓥ㸬