影响碳酸盐岩成岩演化C、O同位素组成的因素分析  

Analysis of the Factor Which Affects the C and O Isotopic Composition in the Diagenetic Evolution of Carbonate

作　　者：王冬娅[1] 陈兰朴 冯莹莹[1] 

机构地区：[1]成都理工大学能源学院,四川成都610059

出　　处：《山东化工》2016年第15期36-37,41,共3页Shandong Chemical Industry

摘　　要：碳酸盐岩主要由碳酸盐矿物组成,化学性质不稳定,易受后期成岩作用改造。在水-岩反应过程中,不同环境下的流体介质与碳酸盐岩相互作用,对碳酸盐岩产生溶蚀或交代,同时发生C、O、Sr等同位素之间的交换,造成碳酸盐岩的同位素组成发生改变。不同环境下的流体介质发生的水-岩反应在碳酸盐岩中的表现特征不同,成为认识碳酸盐岩成岩演化过程的一种重要研究手段。以分析不同环境介质流体的C、O同位素组成特征为基础,认识其在碳酸盐岩成岩过程中的表现。Carbonate is mainly composed by carbonate mineral,which has unstable chemical properties,and can be easily influenced by the post diagenesis.In water-rock course of reaction,interaction between different environmental fluid medium and carbonate,carbonate produced dissolution or replacement,the exchange among the C,O and Sr isotopes is also happened,so that carbonate isotopic composition is changed.The water-rock reaction of fluid medium in different environment has different characteristic in carbonate rock,which becomes an important research tool to understand the diagenetic evolution of carbonate.Based on the analysis of the characteristic of C and O isotopic composition in different environmental fluid medium,the performance in the process of diagenesis is recognized.

关 键 词：碳酸盐岩 C、O同位素 成岩演化 流体介质 

分 类 号：P588.245[天文地球—岩石学]