Mid-Cretaceous Tectonic Evolution of the Tongareva Triple Junction in the Southwest Pacific Basin
Mid-Cretaceous Tectonic Evolution of the Tongareva Triple Junction in the Southwest Pacific Basin
批准号:
9818776
负责人:
Roger Larson
金额:
$16.02万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-03-15 至 2004-02-29
中文摘要
该项目将检验西南太平洋盆地部分地区白垩纪中期构造演化的假设。 该假说认为,在翁通爪哇和马尼希基高原的热点火山活动停止后不久,板块构造重组发生,位于新坎顿海槽的太平洋、法拉伦和菲尼克斯板块之间的三重交界处转移到了马尼希基高原的东北角。 具有多波束测深、侧扫、磁力计以及船载和卫星重力的水下航行器将确定三重连接点的轨道。
英文摘要
This project will test a hypothesis for the mid-Cretaceous tectonic evolution of a portion of the southwest Pacific Basin. The hypothesis suggests that a plate-tectonic reorganization occurred soon after hotspot volcanism ceased on the Ontong Java and Manihiki plateaus, and the triple junction among the Pacific, Farallon, and Phoenix plates that had been located at the Nova Canton trough shifted to the northeast corner of the Manihiki plateau. A usrvey with multibeam bathymetric, side-scan, magnetometer, and shipboard and satellite gravity will determine the track of the triple junction.
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1994 Presidential Awardees
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批准号:9550281
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项目类别:Standard Grant
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资助金额:$0.75万
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财政年份:1995
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负责人:Roger Larson
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依托单位:
GRGC: Collaborative Research: A "Reference Section" at Cismon, Italy for the APTICORE Program
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批准号:9405108
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项目类别:Continuing Grant
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资助金额:$13.95万
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财政年份:1995
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负责人:Roger Larson
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依托单位:
1994 Presidential Awardees
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批准号:9550314
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项目类别:Standard Grant
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资助金额:$0.75万
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财政年份:1995
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负责人:Roger Larson
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依托单位:
A GLORIA, Hydrosweep, Geophysical Investigation of the Juan Fernandez Microplate at the Pacific-Antarctic-Nazca Triple Junction (Renewal)
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批准号:9216866
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项目类别:Continuing Grant
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资助金额:$9.01万
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财政年份:1993
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负责人:Roger Larson
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依托单位:
Gloria, Sea Beam, Geophysical Investigation of the Juan Fernandez Microplate at the Pacific Antarctic-Nazca Triple ction
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批准号:8917630
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项目类别:Continuing Grant
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资助金额:$41.32万
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财政年份:1991
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负责人:Roger Larson
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依托单位:
Cretaceous Volcanic Sequences and Jurassic(?) Crust in the Western Pacific: A Seismic Reflection Study
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批准号:8613867
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项目类别:Standard Grant
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资助金额:$20.36万
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财政年份:1987
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负责人:Roger Larson
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依托单位:
Deep Crustal Refraction Studies of the Northwestern Australia Continental Margin
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批准号:8411574
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项目类别:Continuing Grant
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资助金额:$10.07万
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财政年份:1986
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负责人:Roger Larson
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依托单位:
A Marine Geophysical Survey of the Chile Triple Junction in the Southeastern Pacific
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批准号:8308894
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项目类别:Standard Grant
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资助金额:$13.84万
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财政年份:1983
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负责人:Roger Larson
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依托单位:
Oceanic Crustal Structure in the Western North Atlantic: Rough-Smooth Basement Boundary
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批准号:8017328
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项目类别:Standard Grant
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资助金额:$16.83万
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财政年份:1981
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负责人:Roger Larson
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依托单位:
Tectonic Evolution of the Southern Central Pacific Basin
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批准号:7918793
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1980
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负责人:Roger Larson
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依托单位:
Late Cretaceous Plate Tectonics: Eltanin Fracture Zone and Louisville Ridge
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批准号:7725993
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1978
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负责人:Roger Larson
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依托单位:
海外基金