中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋地质与环境重点实验室
Talc-bearing serpentinized peridotites from the southern Mariana forearc: implications for aseismic character within subduction zones

文献类型：期刊论文

作者Wang Xiaomei1,2; Zeng Zhigang1; Liu Changhua1; Chen Junbing3; Yin Xuebo1; Wang Xiaoyuan1; Chen Daigeng1,2; Zhang Guoliang1,2; Chen Shuai1,2; Li Kang1,2
刊名CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
出版日期2009-08-01
卷号27期号:3页码:667-673
ISSN号0254-4059
关键词Talc Serpentinized Peridotites Mariana Aseismic Subduction Zone
DOI10.1007/s00343-009-9207-y
文献子类Article
英文摘要The serpentinized peridotites overlying the subducted zones in the Izu-Bonin-Mariana (IBM) arc system have been interpret as the cause of the low-velocity layer identified beneath the IBM froearc, in turn few earthquakes occurred along the plate boundary. Chrysotile, which is a low temperature and highly hydrated phase of serpentine with low frictional strength, has been suggested as the low velocity material in the serpentinized peridotites, besides, brucite is inferred to be likely conducive to stable sliding. However, such idea encounters challenging in our serpentinized peridotites from the southern Mariana forearc, which absent both the above minerals. The presence of talc, which characterized by its weak, low-friction and inherently stable sliding behavior, provides new clue. Here we report the occurrence of talc in serpentinized peridotites collected from the landward trench slope of the southern Mariana forearc. We infer that talc is mainly forming as a result of the reaction of serpentine minerals with silica-saturated fluids released from the subducting slab, and talc also occurs as talc veins sometimes. Due to its unique physical properties, talc may therefore play a significant role in aseismic slip in the IBM subduction zone.; The serpentinized peridotites overlying the subducted zones in the Izu-Bonin-Mariana (IBM) arc system have been interpret as the cause of the low-velocity layer identified beneath the IBM froearc, in turn few earthquakes occurred along the plate boundary. Chrysotile, which is a low temperature and highly hydrated phase of serpentine with low frictional strength, has been suggested as the low velocity material in the serpentinized peridotites, besides, brucite is inferred to be likely conducive to stable sliding. However, such idea encounters challenging in our serpentinized peridotites from the southern Mariana forearc, which absent both the above minerals. The presence of talc, which characterized by its weak, low-friction and inherently stable sliding behavior, provides new clue. Here we report the occurrence of talc in serpentinized peridotites collected from the landward trench slope of the southern Mariana forearc. We infer that talc is mainly forming as a result of the reaction of serpentine minerals with silica-saturated fluids released from the subducting slab, and talc also occurs as talc veins sometimes. Due to its unique physical properties, talc may therefore play a significant role in aseismic slip in the IBM subduction zone.
学科主题Limnology ; Oceanography
语种英语
WOS记录号WOS:000270742000035
公开日期2010-12-22
源URL[http://ir.qdio.ac.cn/handle/337002/3707]  
专题海洋研究所_海洋地质与环境重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Zhejiang Geol Prospecting Bur, Ningbo 315012, Zhejiang, Peoples R China
推荐引用方式
GB/T 7714		 Wang Xiaomei,Zeng Zhigang,Liu Changhua,et al. Talc-bearing serpentinized peridotites from the southern Mariana forearc: implications for aseismic character within subduction zones[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2009,27(3):667-673.
APA Wang Xiaomei.,Zeng Zhigang.,Liu Changhua.,Chen Junbing.,Yin Xuebo.,...&Ouyang Hegen.(2009).Talc-bearing serpentinized peridotites from the southern Mariana forearc: implications for aseismic character within subduction zones.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,27(3),667-673.
MLA Wang Xiaomei,et al."Talc-bearing serpentinized peridotites from the southern Mariana forearc: implications for aseismic character within subduction zones".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 27.3(2009):667-673.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。