Characteristics of Authigenic Pyrite and its Sulfur Isotopes Influenced by Methane Seep--Taking the Core A at Site 79 of the Middle Okinawa Trough as an Example  

作　　者：WANG Meng LI Qing CAI Feng LIANG Jie YAN Guijing DONG Gang WANG Feng SHAO Hebin LUO Di CAO Yimin 

机构地区：[1]State Key Laboratory of Gas Hydrates, Ministry of Land Resource, Qingdao 266071, Shandong, China [2]Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, Hubei, China [3]Function Laboratory of Marine Geo-Resource Evaluation and Exploration Technology, Qingdao 266071,Shandong, China [4]School of Ocean and Earth Science, Tongji University, Shanghai 200092, China [5]Petro China Coalbed Methane Company Limited, Beijing 100028, China

出　　处：《Acta Geologica Sinica(English Edition)》2017年第1期365-366,共2页地质学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (grants No.41306062 and 41474119);the Key Laboratory of Gas Hydrate Foundation (grant No.SHW[2014]-DX-04)

摘　　要：Objective Authigenic pyrite often develops extensively in marine sediments,which is an important product of sulfate reduction in an anoxic environment.It has a specific appearance and complicated sulfur isotopic properties,and acts as important evidence of methane seep in marine sediments.Strong AOM（anaerobic oxidation of methane）activity has developed in the Okinawa Trough.Objective Authigenic pyrite often develops extensively in marine sediments,which is an important product of sulfate reduction in an anoxic environment.It has a specific appearance and complicated sulfur isotopic properties,and acts as important evidence of methane seep in marine sediments.Strong AOM（anaerobic oxidation of methane）activity has developed in the Okinawa Trough.

关 键 词：AOM Characteristics of Authigenic Pyrite and its Sulfur Isotopes Influenced by Methane Seep Taking the Core A at Site 79 of the Middle Okinawa Trough as an Example 

分 类 号：P736[天文地球—海洋地质]