文档介绍：
珠江口盆地文昌 A 凹陷恩平组沉积环境分
析
柴洪,郭英海,成晨**
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(中国矿业大学资源与地球科学学院,江苏徐州 221116)
摘要:珠江口盆地恩平组为一套含煤碎屑岩地层。通过对岩性,测井曲线,微量元素和地震反射特征的综
合分析,结合区域构造背景,分析了该盆地文昌 A 凹陷及其周边恩平组的沉积环境。研究发现:恩平组是
湖泊萎缩形成的,岩石普遍为暗色,南部临近物源,可见分选差、磨圆差的粗碎屑岩。沉积相类型主要包
括滨浅湖相,中深湖相,扇三角洲前缘相等。滨湖相是碳质岩的有利分布区。
关键词:恩平组;综合分析;沉积环境;滨湖相;碳质岩
中图分类号:P618
Analysis of Sedimentary Environment of Enping Formation
in Wenchang A depression of Pearl River Mouth Basin
CHAI Hong, GUO Yinghai, CHENG Chen
(School of Resources & Earth Science,China University of Mining and Technology,Xuzhou,
221116)
Abstract: Enping Formation of Pearl River Mouth Basin is a set of coal-bearing clastic rock formation.
Through observation prehensive analysis of lithology, well logging, microelements and
seismic reflection characteristics , bination with regional tectonic background , analyzed
sedimentary environment of Enping Formation in Wenchang A research shows that
Enping Formation formed from atropous lacustrine,the rock color is generally dark,the south is close
to the matter-source, coarse clastic rocks of poor sorting and bad rounding can be found. Sedimentary
facies types mainly include shore-shallow lacustrine facies,semideep-deep lacustrine facies,fan delta
front facies. The shore lacustrine facies is the favorable distribution area of carbonolite.
Key words: Enping Formation; comprehensive analysis; sedi