石油与天然气地质 ›› 1981, Vol. 2 ›› Issue (2): 177-184.doi: 10.11743/ogg19810208

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苏北金湖凹陷北部垛二段——盐二段重矿物初步研究

孔庆玉   

  1. 江苏石油普查勘探指挥部
  • 出版日期:1981-06-25 发布日期:2012-01-16

A PRELIMINARY STUDY ON HEAVY MINERALS FROM SHANDO AND YANCHENG FORMATIONS IN NORTHERN JINHU SEG,NORTHERN JIANGSU

Kong Qingyu   

  1. The Petroleum Prospecting and Exploration Headquarters of Jiangsu Province
  • Online:1981-06-25 Published:2012-01-16

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摘要：

苏北金湖凹陷北部,包括三个次一级构造单元,即三河次凹陷、刘庄构造带和唐港构造带(图1)。该区处于东台坳陷与建湖隆起两大构造单元的过渡地带,新生代沉积变化较大,相变与地层缺失现象错综复杂。本文所研究的早第三纪晚期—晚第三纪沉积,即三垛组二段(简称“垛二段”)—盐城组二段(简称“盐二段”)尤其如此。

Abstract:

The north section of Jinhu seg occurs in zone of transition between Dun-tai depression and Jianhu uplift.Cenozoic sediments vary greatly.Parts ofthese sediments show no distinct lithological and electrical properties.Analyses of 110 samples of heavy minerals are given and used as criter-ian for stratigraphical division and correlation on the basis of their as sembl-ages,typomorphic peculiarities and differences in distribution in various rockhorizons.