重庆地区江北砾岩地球化学分析  

The Geochemical Analysis of Jiangbei Conglomerate in Chongqing Region

作　　者：熊平生[1] 谢世友[1] 何多兴[1] 莫心祥[1] 

机构地区：[1]西南师范大学资源与环境科学院,重庆400715

出　　处：《东华理工学院学报》2005年第3期244-248,共5页Journal of East China Institute of Technology

基　　金：重庆市科委研究项目(2002-7534);(2004-8258)

摘　　要：通过选取砾岩填隙物、砾石局部胶结填隙物、砂岩层的鲜岩石作为分析样品,结合江北砂、砾岩碳氧同位素、化学成分和磁化率的特征,对重庆地区江北砾岩进行了地球化学分析。研究结果表明,重庆地区江北砾岩胶结时期为冷干气候占据优势,但也经历了较短的暖湿时期。砾岩的主要成分是硅质,胶结物主要为钙质。Connecting with the characters of δ^13C and δ^18O, chemistry formation and magnetic susceptibility of conglomerate and sandstone in Jiangbei. We analyse the geochemical characters of conglomerate and sandstone of Jiangbei in Chongqing Region. By taking samples of the cement of conglomerate, part of cemented material of sandstone. Fresh rock of sandstone are analyzed. Base on of the research,we can draw a conclusion that the conglomerate and sandstone of Jiangbei in Chongqing Region are formed mainly in dry-cooling climate environment, but through short warm-wetting dates. The main chemistry formations are silica . The major cemented matters are calcinosis.

关 键 词：重庆地区 江北砾岩 磁化率 碳氧同位素 化学成分 

分 类 号：P59[天文地球—地球化学]