当サイトでは、より良いサービスを提供するため、クッキーを利用しています。クッキーの使用に同意いただける場合は「同意」ボタンをクリックし、クッキーポリシーについては「詳細を見る」をクリックしてください。詳しくは当サイトの サイトポリシー をご確認ください。

詳細を見る...
ログイン サインアップ
言語:

WEKO3

  • トップ
  • ランキング
To

Field does not validate



インデックスリンク

インデックスツリー

  • RootNode

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

{"_buckets": {"deposit": "ceeeae87-2305-48a1-9332-934939e98977"}, "_deposit": {"id": "4848", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "4848"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00004848", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2020-12-11", "bibliographicIssueDateType": "Issued"}, "bibliographic_titles": [{"bibliographic_title": "Geology", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Subduction zones may develop submarine spreading centers that occur on the overriding plate behind the volcanic arc. In these back-arc settings, the subducting slab controls the pattern of mantle advection and may entrain hydrous melts from the volcanic arc or slab into the melting region of the spreading ridge. We recorded seismic data across the Western Mariana Ridge (WMR, northwestern Pacific Ocean), a remnant island arc with back-arc basins on either side. Its margins and both basins show distinctly different crustal structure. Crust to the west of the WMR, in the Parece Vela Basin, is 4?5 km thick, and the lower crust indicates seismic P-wave velocities of 6.5?6.8 km/s. To the east of the WMR, in the Mariana Trough Basin, the crust is ~7 km thick, and the lower crust supports seismic velocities of 7.2?7.4 km/s. This structural diversity is corroborated by seismic data from other back-arc basins, arguing that a chemically diverse and heterogeneous mantle, which may differ from a normal mid-ocean-ridge?type mantle source, controls the amount of melting in back-arc basins. Mantle heterogeneity might not be solely controlled by entrainment of hydrous melt, but also by cold or depleted mantle invading the back-arc while a subduction zone reconfigures. Crust formed in back-arc basins may therefore differ in thickness and velocity structure from normal oceanic crust.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Geological Society of America", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1130/g48407.1"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1943-2682", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Ingo Grevemeyer", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shuichi Kodaira", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Gou Fujie", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Narumi Takahashi", "creatorNameLang": "en"}]}]}, "item_title": "Structure of oceanic crust in back-arc basins modulated by mantle source heterogeneity", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Structure of oceanic crust in back-arc basins modulated by mantle source heterogeneity", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/4848", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "4848", "relation": {}, "relation_version_is_last": true, "title": ["Structure of oceanic crust in back-arc basins modulated by mantle source heterogeneity"], "weko_shared_id": -1}
  1. 防災科研関係論文

Structure of oceanic crust in back-arc basins modulated by mantle source heterogeneity

https://nied-repo.bosai.go.jp/records/4848
https://nied-repo.bosai.go.jp/records/4848
6136b163-6b8b-48db-9387-96831b9121f6
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Structure of oceanic crust in back-arc basins modulated by mantle source heterogeneity
著者 Ingo Grevemeyer

× Ingo Grevemeyer

en Ingo Grevemeyer

Search repository
Shuichi Kodaira

× Shuichi Kodaira

en Shuichi Kodaira

Search repository
Gou Fujie

× Gou Fujie

en Gou Fujie

Search repository
Narumi Takahashi

× Narumi Takahashi

en Narumi Takahashi

Search repository
抄録
内容記述タイプ Other
内容記述 Subduction zones may develop submarine spreading centers that occur on the overriding plate behind the volcanic arc. In these back-arc settings, the subducting slab controls the pattern of mantle advection and may entrain hydrous melts from the volcanic arc or slab into the melting region of the spreading ridge. We recorded seismic data across the Western Mariana Ridge (WMR, northwestern Pacific Ocean), a remnant island arc with back-arc basins on either side. Its margins and both basins show distinctly different crustal structure. Crust to the west of the WMR, in the Parece Vela Basin, is 4?5 km thick, and the lower crust indicates seismic P-wave velocities of 6.5?6.8 km/s. To the east of the WMR, in the Mariana Trough Basin, the crust is ~7 km thick, and the lower crust supports seismic velocities of 7.2?7.4 km/s. This structural diversity is corroborated by seismic data from other back-arc basins, arguing that a chemically diverse and heterogeneous mantle, which may differ from a normal mid-ocean-ridge?type mantle source, controls the amount of melting in back-arc basins. Mantle heterogeneity might not be solely controlled by entrainment of hydrous melt, but also by cold or depleted mantle invading the back-arc while a subduction zone reconfigures. Crust formed in back-arc basins may therefore differ in thickness and velocity structure from normal oceanic crust.
言語 en
書誌情報 en : Geology

発行日 2020-12-11
出版者
言語 en
出版者 Geological Society of America
ISSN
収録物識別子タイプ EISSN
収録物識別子 1943-2682
DOI
関連識別子 10.1130/g48407.1
戻る
0
views
See details
Views

Versions

Ver.1 2023-03-31 02:05:03.184940
Show All versions

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by WEKO3

Change consent settings


Powered by WEKO3

Change consent settings