A Collaborative Proposal: Geological Investigation of En Echelon Cracks Along the Outer Shelf Off Virginia/North Carolina: Implications of Slope Stability
A Collaborative Proposal: Geological Investigation of En Echelon Cracks Along the Outer Shelf Off Virginia/North Carolina: Implications of Slope Stability
批准号:
9819612
负责人:
Neal Driscoll
金额:
$8.07万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1999
资助国家:
美国
项目状态:
已结题
起止时间:
1999-07-01 至 2001-06-30
中文摘要
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英文摘要
The PIs will study the enechelon cracks along the outer shelf of Virginia and North Carolina in detail during a two-week geological/geophysical survey cruise with a deep-towed high-resolution vertical-incidence sonar system. Accurate mapping of these features and their subsurface geometry will help evaluate the hypothesis that the crack system indicates nascent slope failure along the shelf edge. This data, as well as data released by NOAA on gridded bathymetry, will provide evidence of past catastrophic failure and will lead to a better understanding of the role of these cracks in mass wasting and subsequent canyon evolution.
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