碳酸盐沉积物的成岩作用

被引：39

作者：

赵彦彦

郑永飞

机构：

[1] 中国科学院壳幔物质与环境重点实验室中国科学技术大学地球和空间科学学院

来源：

岩石学报 | 2011年 / 27卷 / 02期

关键词：

沉积碳酸盐; 成岩蚀变; 同位素; 微量元素; 地球化学;

D O I：

暂无

中图分类号：

P588.245 [];

学科分类号：

摘要：

化学沉淀碳酸盐矿物在沉积后很容易受到各种作用的影响,其中最重要的是其在成岩阶段所经历的成岩作用。碳酸盐沉积物在成岩过程中主要受大气降水、海水和埋藏过程中孔隙流体的控制,经历一系列压实、溶解、矿物的多相转变、重结晶、胶结等成岩作用,逐渐转变为固结的岩石。在成岩过程中,由于孔隙流体与沉积流体之间的异同以及温度的变化,碳酸盐沉积物的原始矿物成分、地球化学特征可能会很好的保存下来,但在许多情况下,也可能会改变,从而使我们无法准确反演碳酸盐沉积物在沉积时水体的特征。因此,我们在应用碳酸盐岩重建相关古环境和古气候变化的时候,必须要通过有效的方法来对碳酸盐岩是否受到成岩作用的影响进行鉴定。

引用

页码：501 / 519

页数：19

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