Diagenesis and Dpenetic Facies of the Late Permian Reef in Cil i,Hunan Province
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摘要: 所谓成岩相是指具有特征的成岩组构的岩体。研究成岩相的目的主要是通过对沉积物中不稳定颗粒在不同的成岩条件下的后生变化特征的研究来弄清其成岩环境的变化。本文通过对湖南慈利晚二叠世生物礁成岩特征的研究,从礁相体系中划分出四种基本的成岩相类型:即海底成岩相、混合成岩相、埋藏成岩相和表生成岩相。部分成岩相又可进一步划分出成岩亚相。Abstract: Diagenetic facies refers to a rock body which is characteristic of diagenetic fabric. The main purpose ofdiagenetic facies study is to make it clear the evolution of diagenetic envirenment by studying epigenetic diver-sion of unstable particles in deposition under different diagenetic conditions. In this paper,four basic types ofdiagenetic facies were identified in the reef facies system by studying diagenetic characters of the Late Permi-an reef in Cili,Hunan Province. They were the sea floor diagenetic facies,fresh-saline water diagenetic fa-ties,deep-buried diagenetic facies and fresh-water diagenetic facies. Some of the facies can be subdivided fur-ther
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Key words:
- diagenetic facies /
- reef /
- Late Permian /
- Hunan
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