Referential significance of sulfur isotopes and separation of S species in black shales of Southwest China  

作　　者：Chaodong Wu Fangang Zeng Jiajin Lei Rui Zhao 

机构地区：[1]Peking Univ, Dept Geol, Beijing 100871, Peoples R China [2]Chinese Acad Sci, Inst Geol, Beijing 100029, Peoples R China

出　　处：《Chinese Science Bulletin》1999年第17期1612-1616,共5页

摘　　要：The states of S species in black shales are very complex, such as organic sulfur, pyrite sulfur and sulphate sulfur. The mineral microtexture, sulfur content and sulfur isotope can indicate the formation conditions and diagenetic processes of the black shales. The S species are separated perfectly and the relation between the content, mineral microtexture andThe states of S species in black shales are very complex, such as organic sulfur, pyrite sulfur and sulphate sulfur. The mineral microtexture, sulfur content and sulfur isotope can indicate the formation conditions and diagenetic processes of the black shales. The S species are separated perfectly and the relation between the content, mineral microtexture and sulfur isotope composition of the sulfur mineral is assessed. These complementary approaches provide people a new insight into the formation conditions of the black shales and redox conditions of Precambrian and Cambrian in Southwest China.

关 键 词：S SPECIES sulfur isotope black SHALES ANOXIC environment. 

分 类 号：P597[天文地球—地球化学]