| 哥斯达黎加地震起源计划——IODP334航次介绍 |
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| 引用本文： | 朱俊江.哥斯达黎加地震起源计划——IODP334航次介绍[J].地球科学进展,2011,26(12):1300-1305. |
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| 作者姓名： | 朱俊江 |
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| 作者单位： | 中国科学院南海海洋研究所边缘海地质重点实验室,广东广州,510301 |
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| 基金项目： | 国家自然科学基金青年基金项目，国家自然科学基金面上项目，国家高技术研究发展计划重点项目 |
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| 摘 要： | 2011年3月13日至4月13日哥斯达黎加地震起源计划IODP334航次在中美洲哥斯达黎加俯冲带大陆边缘斜坡带实施。该航次的主要科学目标是研究俯冲剥蚀控制的俯冲带大地震的聚集和破裂过程。在1个月的钻探时间内，总共在4个站位、8个钻孔中获得1492．88m的岩芯，获得许多中新世到现代的火山灰层，初步确定上覆板块内沉积物和...
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| 关 键 词： | IODP334 哥斯达黎加 发震带 俯冲带 大地震 |
Introduction to the Integrated Ocean Drilling Program Expedition 334 Costa Rica Seismogenesis Project |
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| Zhu Junjiang.Introduction to the Integrated Ocean Drilling Program Expedition 334 Costa Rica Seismogenesis Project[J].Advance in Earth Sciences,2011,26(12):1300-1305. |
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| Authors: | Zhu Junjiang |
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| Institution: | Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou510301, China |
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| Abstract: | The Costa Rica Seismogenesis Project (CRISP) (IODP Expedition 334) was carried out on the continental margin slope apron in the Costa Rica subduction zone in Central America during March 13 to April 13, 2011. The primary scientific goals of this expedition are to understand the processes that control nucleation and seismic rupture of large earthquakes at erosion-controlled subduction zone. During one month drilling, onboard totally 1492.88 meters long cores were obtained at four sites and eight holes. Tephra layers with ages ranging from Miocene to present were indentified. Rock variation characteristic of sediments and basement rocks were preliminary defined and basalt from the oceanic Cocos ridge basement was recovered. |
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| Keywords: | Integrated Ocean Drilling Program 334 Costa Rica Seismogenic zone Subduction zone Large earthquake |
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