固体地球科学(S)
セッション小記号固体地球科学複合領域・一般
セッションIDS-CG54
タイトル和文ハードロック掘削　オマーンから海洋リソスフェア，島弧形成＋
英文Hard-Rock Drilling: Oman to Oceanic Lithosphere to Island Arc Formation and Beyond
タイトル短縮名和文ハードロック掘削
英文Hard-Rock Drilling
代表コンビーナ氏名和文高澤 栄一
英文Eiichi TAKAZAWA
所属和文新潟大学理学部地質科学科
英文Department of Geology, Faculty of Science, Niigata University
共同コンビーナ 1氏名和文道林 克禎
英文Katsuyoshi Michibayashi
所属和文静岡大学理学部地球科学科
英文Institute of Geosciences, Shizuoka University
共同コンビーナ 2氏名和文Peter B Kelemen
英文Peter B Kelemen
所属和文Columbia University of New York
英文Columbia University of New York
共同コンビーナ 3氏名和文Damon A H Teagle
英文Damon A H Teagle
所属和文Ocean & Earth Science, National Oceanography Centre Southampton, University of Southampton, SO14-3ZH, Southampton, UK
英文Ocean & Earth Science, National Oceanography Centre Southampton, University of Southampton, SO14-3ZH, Southampton, UK
発表言語EE
スコープ和文ハードロック掘削計画が進展している．本セッションでは，現在実施中のオマーン掘削プロジェクトを中心としてICDPならびにIODPの掘削プロジェクトの成果発表を期待する．さらに，掘削研究にこだわらず，関連するオフィオライト研究などの野外研究や実験研究等の発表の機会となることも期待したい．
英文The on-going Oman Drilling Project (OmDP) has drilled numerous hard-rock cores of ancient oceanic lithosphere and the underlying subduction zone of the Samail ophiolite in Oman, with support from ICDP, IODP, the Sloan Foundation's Deep Carbon Observatory, and Japanese, US, and European research agencies. Moreover, a number of IODP expeditions have focused on hard-rock drilling over the last 5 years including Expedition 352 in 2014, which drilled the volcanic sequence associated with subduction initiation in the Bonin fore-arc, Expedition 357, which drilled the Lost City hydrothermal field, Expedition 360, which drilled the lithosphere associated with ultraslow-spreading at the Southwest Indian Ridge in 2016, and Expedition 366, which drilled the serpentinite seamounts in the Mariana fore-arc. In this session, we invite presentations on the scientific results of hard-rock drilling at these and other sites. We also invite related presentations on oceanic lithosphere, island arc formation, and any other significant issue that could be addressed by future hard-rock drilling. This includes marine studies of oceanic lithosphere and on-land geological investigations of ophiolites, accreted arcs, and subduction complexes. The session is intended to be interdisciplinary, including the fields of geophysics, geochemistry, petrology, engineering, and biology.
発表方法口頭および（または）ポスターセッション
ジョイントセッションAGU, EGU
招待講演
  • 山下 幹也 (海洋研究開発機構)
  • Damon A H Teagle (Ocean & Earth Science, National Oceanography Centre Southampton, University of Southampton, SO14-3ZH, Southampton, UK)
  • Peter B Kelemen (Columbia U.)
  • KYAW MOE (Japan Agency for Marine-Earth Science and Technology, Center for Ocean Drilling Science)
時間 講演番号 タイトル 発表者 予稿原稿
口頭発表 5月21日 AM1
09:00 - 09:15 SCG54-01超深部探査船ちきゅうで得られたオマーン掘削プロジェクト岩石コアのX線CT画像道林 克禎予稿
09:15 - 09:30 SCG54-02Mantle Wedge Metasomatic Hydration; Evidence from the Khantaishir Ophiolite, Western MongoliaOTGONBAYAR DANDAR予稿
09:30 - 09:45 SCG54-03Ordovician mantle dynamics in NE-Japan constraints from layered structures of Cumulate Member in the Hayachine-Miyamori Ophiolite木村 皐史予稿
09:45 - 10:00 SCG54-04ゴジラメガムリオンの掘削実現へ向けて小原 泰彦予稿
10:00 - 10:15 SCG54-05Crustal and upper mantle structure deduced from seismic refraction and reflection data on the Northeast Hawaiian arch大平 茜予稿
10:15 - 10:30 SCG54-06マントル掘削に向けた事前調査から得られたハワイ諸島東方沖における海洋プレートの構造的特徴山下 幹也予稿
口頭発表 5月21日 PM1
13:45 - 14:15 SCG54-07Tethyan anhydrite preserved in the lower crust of the Samail ophiolite? Evidence from Oman Drilling Project Holes GT1A and 2A.Damon A H Teagle予稿
14:15 - 14:30 SCG54-08Fine-grained gabbroic layers in the lower and middle crustal sections of the Oman Ophiolite (Holes GT1A and GT2A), ICDP Oman Drilling Project星出 隆志予稿
14:30 - 14:45 SCG54-09海洋下部地殻の白金族元素存在度とオスミウム同位体比：ICDPオマーン掘削試料から仙田 量子予稿
14:45 - 15:00 SCG54-10Initial studies of the petrophysics in the dike and upper gabbro from ICDP Hole GT3A, the Oman Drilling Project Phase I阿部 なつ江予稿
15:00 - 15:15 SCG54-11オマーンオフィオライト陸上掘削から採取された苦鉄質岩コア試料の弾性波速度とその圧力依存性畠山 航平予稿
口頭発表 5月21日 PM2
15:30 - 16:00 SCG54-12Peridotite carbonation at the leading edge of the mantle wedge: OmDP Site BT1Peter B Kelemen予稿
16:00 - 16:15 SCG54-13マントルウエッジプレート境界掘削：オマーン陸上掘削ーサマイル・オフィオライトの炭酸塩岩化したカンラン岩から下位の変成岩までの掘削成果概要森下 知晃予稿
16:15 - 16:30 SCG54-14Initial studies on the physical property measurement of listvenite, serpentinite and the metamorphic sole from ICDP Oman Drilling Project Hole BT1B岡崎 啓史予稿
16:30 - 16:45 SCG54-15Drilling of crust-mantle transition zone in the CM site of Wadi Tayin massif in the Oman ophiolite: the ICDP Oman Drilling Project高澤 栄一予稿
16:45 - 17:00 SCG54-16Advanced Well Logging across Crust-Mantle Transition in OmanKYAW MOE予稿
講演番号 タイトル 発表者 予稿原稿
ポスター発表 5月21日 コア
SCG54-P01 オマーンオフィオライトの海洋地殻下部の構造：ICDPオマーン陸上掘削孔GT1Aの予察的報告オマーンオフィオライトの海洋地殻下部の構造：ICDPオマーン陸上掘削孔GT1Aの予察的報告 海野 進 予稿
SCG54-P02 The record of hydrothermal alteration in the lower oceanic crust sampled by Oman Drilling Project Holes GT1A and GT2A Damon A H Teagle 予稿
SCG54-P03 Automated Analysis of Borehole Core Imagery from Oman Drilling Project Hole GT2A Damon A H Teagle 予稿
SCG54-P04 Overview of Hole GT2A, ICDP Oman Drilling Project: Drilling middle gabbro in Wadi Tayin massif, Oman ophiolite 高澤 栄一 予稿
SCG54-P05 Lithological and petrophysical variation of the lower crustal section from the ICDP Oman drilling project Holes GT1A and GT2A 草野 有紀 予稿
SCG54-P06 Overview of Hole GT3A: The sheeted dike/gabbro transition 阿部 なつ江 予稿
SCG54-P07 Listvenite-Metamorphic sole transition in the Basal thrust of the Oman Ophiolite: Geochemical, mineralogical and reaction path model preliminary results from Oman Drilling Project Hole BT1B. Peter B Kelemen 予稿
SCG54-P08 Overview of Hole CM1 in the Oman Drilling Project Phase 2: Crust-Mantle boundary 田村 芳彦 予稿
SCG54-P09 Overview of Hole CM2 in the Oman Drilling Project Phase 2: the Moho transition zone to the uppermost mantle 道林 克禎 予稿
SCG54-P10 オマーンオフィオライト北部のV2期岩脈群の岩石学 普代 貴大 予稿
SCG54-P11 A new discovery of chromite-hosted inclusions from chromitites of the Samail ophiolite of Oman Yuan YAO 予稿
SCG54-P12 Geochemistry of Wadi Tayin mantle section in the southern Oman mantle section with special reference to suprasubduction zone magmatism 石井 慶佑 予稿
SCG54-P13 Major and trace element compositions of peridotites from the Maqsad diapir area: implication for the melting and melt-mantle reaction at mid-ocean ridge 高橋 果朋 予稿