| DOI: | 10.2172/1248306
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| 报告号: | LLNL--TR-623455
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| 报告题名: | Exploring the plutonic crust at a fast-spreading ridge:new drilling at Hess Deep |
| 作者: | Gillis, Kathryn M. [Univ. of Victoria, BC (Canada). School of Earth and Ocean Sciences]; Snow, Jonathan E. [Univ. of Houston, Houston, TX (United States). Earth & Atmospheric Sciences]; Klaus, Adam [Texas A & M Univ., College Station, TX (United States).
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| 出版年: | 2013
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| 发表日期: | 2013-02-28
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| 总页数: | 91
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| 国家: | 美国
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| 语种: | 英语
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| 中文主题词: | 保存
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| 主题词: | PRESERVATION
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| 英文摘要: | Integrated Ocean Drilling Program (IODP) Hess Deep Expedition 345 was designed to sample lower crustal primitive gabbroic rocks that formed at the fast-spreading East Pacific Rise (EPR) in order to test models of magmatic accretion and the intensity of hydrothermal cooling at depth. The Hess Deep Rift was selected to exploit tectonic exposures of young EPR plutonic crust, building upon results from ODP Leg 147 as well as more recent submersible, remotely operated vehicle, and near-bottom surveys. The primary goal was to acquire the observations required to test end-member crustal accretion models that were in large part based on relationships from ophiolites, in combination with mid-ocean ridge geophysical studies. This goal was achieved with the recovery of primitive layered olivine gabbros and troctolites with many unexpected mineralogical and textural relationships, such as the abundance of orthopyroxene and the preservation of delicate skeletal olivine textures. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1248306
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41251
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1248306.pdf（7000KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Gillis, Kathryn M. [Univ. of Victoria, BC ,Snow, Jonathan E. [Univ. of Houston, Houston, TX ,Klaus, Adam [Texas A & M Univ., College Station, TX . Exploring the plutonic crust at a fast-spreading ridge:new drilling at Hess Deep. 2013-01-01.
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