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地球科学进展  2011, Vol. 26 Issue (12): 1300-1305    DOI: 10.11867/j.issn.1001-8166.2011.12.1300
哥斯达黎加地震起源计划——IODP 334航次介绍
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
Introduction to the Integrated Ocean Drilling Program Expedition  334 Costa Rica Seismogenesis Project
Zhu Junjiang
Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou510301, China
 全文: PDF(33201 KB)  

2011年3月13日至4月13日哥斯达黎加地震起源计划IODP 334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1 492.88 m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基底的岩性变化以及俯冲可可洋脊为玄武岩基底的特征。

关键词: 发震带俯冲带大地震IODP334哥斯达黎加    

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.

Key words: Integrated Ocean Drilling Program 334    Costa Rica    Seismogenic zone    Subduction zone    Large earthquake
收稿日期: 2011-11-10 出版日期: 2011-12-10
:  P714.6  


通讯作者: 朱俊江(1976-),男,甘肃永昌人,副研究员,主要从事海洋地球物理和深部构造研究.     E-mail:
作者简介: 朱俊江(1976-),男,甘肃永昌人,副研究员,主要从事海洋地球物理和深部构造研究.
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朱俊江. 哥斯达黎加地震起源计划——IODP 334航次介绍[J]. 地球科学进展, 2011, 26(12): 1300-1305.

Zhu Junjiang. Introduction to the Integrated Ocean Drilling Program Expedition  334 Costa Rica Seismogenesis Project. Advances in Earth Science, 2011, 26(12): 1300-1305.


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