Collaborative Research: Mantle Structure and Dynamics of the Ross Sea from a Passive Seismic Deployment on the Ross Ice Shelf

合作研究:罗斯冰架上被动地震部署的罗斯海地幔结构和动力学

基本信息

  • 批准号:
    1142518
  • 负责人:
  • 金额:
    $ 37.42万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2013
  • 资助国家:
    美国
  • 起止时间:
    2013-09-01 至 2019-08-31
  • 项目状态:
    已结题

项目摘要

Intellectual Merit: The PIs propose to establish an ice shelf network of 18 broadband seismographs deployed for two years to obtain high-resolution, mantle-scale images of Earth structure underlying the Ross Sea Embayment. Prior marine geophysical work provides good crustal velocity models for the region seaward of the ice shelf but mantle structure is constrained by only low-resolution images due to the lack of prior seismic deployments. The proposed stations would be established between Ross Island and Marie Byrd Land. These stations would fill a major geological gap within this extensional continental province and would link data sets collected in the Transantarctic Mountain transition/Plateau region (TAMSEIS) and in West Antarctica (POLENET) to improve resolution of mantle features beneath Antarctica. The proposed deployment would allow the PIs to collect seismic data without the expense, logistical complexity, and iceberg hazards associated with ocean bottom seismograph deployments. Tomographic models developed from the proposed data will be used to choose between competing models for the dynamics of the Ross Sea. In particular, the PIs will investigate whether a broad region of hot mantle, including the Eastern Ross Sea, indicates distributed recent tectonic activity, which would call into question models proposing that Eastern Ross extension ceased during the Mesozoic. These data will also allow the PIs to investigate the deeper earth structure to evaluate the possible role of mantle plumes and/or small-scale convection in driving regional volcanism and tectonism across the region.Broader impacts: Data from this deployment will be of broad interdisciplinary use. This project will support three graduate and two undergraduate students. At least one student will be an underrepresented minority student. The PIs will interact with the media and include K-12 educators in their fieldwork.
智力优势:研究所建议建立一个由18个宽带地震仪组成的冰架网络,部署两年,以获得罗斯海海湾下地球结构的高分辨率地幔尺度图像。以前的海洋地球物理工作提供了良好的地壳速度模型的区域向海的冰架,但地幔结构的限制,只有低分辨率的图像,由于缺乏事先的地震部署。拟议中的站点将建立在罗斯岛和玛丽伯德地之间。这些台站将填补这一伸展大陆区内的一个主要地质空白,并将把在跨南极山脉过渡/高原地区(TAMSEIS)和西南极洲(POLENET)收集的数据集连接起来,以提高对南极洲下地幔特征的分辨率。拟议的部署将允许PI收集地震数据,而无需与海底地震仪部署相关的费用,后勤复杂性和冰山危险。从拟议的数据开发的层析模型将用于选择之间的竞争模型的罗斯海的动态。特别是,PI将调查包括东罗斯海在内的广泛的热地幔区域是否表明最近的构造活动,这将对提出东罗斯伸展在中生代停止的模型提出质疑。这些数据还将使PI能够调查更深的地球结构,以评估地幔柱和/或小规模对流在推动区域火山活动和整个区域的构造活动中可能发挥的作用。该项目将支持三名研究生和两名本科生。至少有一名学生将是代表性不足的少数民族学生。PI将与媒体互动,并将K-12教育工作者纳入其实地考察。

项目成果

期刊论文数量(0)
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会议论文数量(0)
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Douglas Wiens其他文献

Primary andesite melts; new insight from NW Rota-1 volcano
原生安山岩熔体;
  • DOI:
  • 发表时间:
    2008
  • 期刊:
  • 影响因子:
    0
  • 作者:
    R W Embley;William Chadwick;Edward Baker;David Butterfield;Joseph Resing;Cornel de Ronde;Verena Tunnicliffe;John Lupton;S.Kim Juniper;Kenneth Rubin;Robert Stern;Geoff Lebon;Ko-ichi Nakamura;Susan Merle;James Hein;Douglas Wiens;Yoshihiko Ta;Yoshihiko Tamura;Yoshihiko Tamura;Yoshihiko Tamura;田村 芳彦;田村芳彦;Yoshihiko Tamura
  • 通讯作者:
    Yoshihiko Tamura
Primary andesite melts ; new insight from NW Rota-1 volcano
原生安山岩熔体;
  • DOI:
  • 发表时间:
    2008
  • 期刊:
  • 影响因子:
    0
  • 作者:
    R W Embley;William Chadwick;Edward Baker;David Butterfield;Joseph Resing;Cornel de Ronde;Verena Tunnicliffe;John Lupton;S.Kim Juniper;Kenneth Rubin;Robert Stern;Geoff Lebon;Ko-ichi Nakamura;Susan Merle;James Hein;Douglas Wiens;Yoshihiko Ta;Yoshihiko Tamura;Yoshihiko Tamura;Yoshihiko Tamura;田村 芳彦;田村芳彦;Yoshihiko Tamura;宮下純夫・足立佳子・海野 進;村上龍太朗・菅家奈未・高澤栄;Yoshihiko Tamura
  • 通讯作者:
    Yoshihiko Tamura
Oligocene IBM
渐新世IBM
  • DOI:
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    0
  • 作者:
    R W Embley;William Chadwick;Edward Baker;David Butterfield;Joseph Resing;Cornel de Ronde;Verena Tunnicliffe;John Lupton;S.Kim Juniper;Kenneth Rubin;Robert Stern;Geoff Lebon;Ko-ichi Nakamura;Susan Merle;James Hein;Douglas Wiens;Yoshihiko Ta;Yoshihiko Tamura
  • 通讯作者:
    Yoshihiko Tamura
海洋地殻の構造と形成プロセス
洋壳的结构和形成过程
  • DOI:
  • 发表时间:
    2008
  • 期刊:
  • 影响因子:
    0
  • 作者:
    R W Embley;William Chadwick;Edward Baker;David Butterfield;Joseph Resing;Cornel de Ronde;Verena Tunnicliffe;John Lupton;S.Kim Juniper;Kenneth Rubin;Robert Stern;Geoff Lebon;Ko-ichi Nakamura;Susan Merle;James Hein;Douglas Wiens;Yoshihiko Ta;Yoshihiko Tamura;Yoshihiko Tamura;Yoshihiko Tamura;田村 芳彦;田村芳彦;Yoshihiko Tamura;宮下純夫・足立佳子・海野 進
  • 通讯作者:
    宮下純夫・足立佳子・海野 進
南极中山站-昆仑站间地壳厚度分布
  • DOI:
  • 发表时间:
    2014
  • 期刊:
  • 影响因子:
    0
  • 作者:
    史贵涛;赵越;李院生;Douglas Wiens
  • 通讯作者:
    Douglas Wiens

Douglas Wiens的其他文献

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{{ truncateString('Douglas Wiens', 18)}}的其他基金

Collaborative Research: Geophysical Study of Ongoing Subduction Initiation Along the Matthew-Hunter Trench
合作研究:沿马修-亨特海沟持续俯冲起始的地球物理研究
  • 批准号:
    2228413
  • 财政年份:
    2023
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Continuing Grant
Collaborative Research: Seismic Investigation of the Sub-ice Environment and Crustal Composition of Antarctica
合作研究:南极冰下环境和地壳组成的地震调查
  • 批准号:
    1945693
  • 财政年份:
    2020
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Standard Grant
Collaborative Research: Interactions Between the Tonga-Lau Subduction System and the Samoan Plume
合作研究:汤加-劳俯冲系统与萨摩亚地幔柱之间的相互作用
  • 批准号:
    1928914
  • 财政年份:
    2020
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Continuing Grant
Collaborative Research: Variation of Incoming Plate Hydration and Faulting Along the Alaska Subduction Zone
合作研究:阿拉斯加俯冲带沿线板块水合作用和断层作用的变化
  • 批准号:
    2025969
  • 财政年份:
    2020
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Standard Grant
Comprehensive Seismic and Thermal Models for Antarctica and the Southern Oceans: A Synthesis of 15-years of Seismic Exploration
南极洲和南大洋的综合地震和热模型:15 年地震勘探的综合
  • 批准号:
    1744883
  • 财政年份:
    2018
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Standard Grant
Collaborative Research: Investigating Ice Sheet - Solid Earth Feedbacks in West Antarctica: Implications for Ice Sheet Evolution and Stability
合作研究:调查冰盖 - 南极洲西部的固体地球反馈:对冰盖演化和稳定性的影响
  • 批准号:
    1744889
  • 财政年份:
    2018
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Continuing Grant
Collaborative Research: Solid Earth Response of the Patagonian Andes to Post-Little Ice Age Glacial Retreat
合作研究:巴塔哥尼亚安第斯山脉对小冰期后冰川退缩的固体地球响应
  • 批准号:
    1714154
  • 财政年份:
    2017
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Standard Grant
Collaborative Research: POLENET-Antarctica: Investigating Links Between Geodynamics and Ice Sheets - Phase 2
合作研究:POLENET-南极洲:调查地球动力学和冰盖之间的联系 - 第二阶段
  • 批准号:
    1246712
  • 财政年份:
    2013
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Continuing Grant
CSEDI Collaborative Research: Integrating Seismological, Rheological and Petrological Studies of Melt Production and Transport in Subduction Zones
CSEDI 合作研究:整合俯冲带熔体产生和运输的地震学、流变学和岩石学研究
  • 批准号:
    1067928
  • 财政年份:
    2011
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Continuing Grant
Collaborative Research: Geophysical Study of Ice Stream Stick-slip Dynamics
合作研究:冰流粘滑动力学地球物理研究
  • 批准号:
    0944671
  • 财政年份:
    2010
  • 资助金额:
    $ 37.42万
  • 项目类别:
    Continuing Grant

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合作研究:地幔矿物中穆斯堡尔非活性元素同位素分馏的实验和计算约束
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