石油与天然气地质 ›› 1996, Vol. 17 ›› Issue (4): 347-352.doi: 10.11743/ogg19960416

• 论文 • 上一篇    下一篇

湖北宜昌黄花场早奥陶世岩相和沉积环境

胡明毅, 龚文平, 肖传桃, 朱忠德   

  1. 江汉石油学院地质系, 湖北荆沙 434102
  • 收稿日期:1996-02-06 修回日期:1996-09-04 出版日期:1996-12-25 发布日期:2012-01-16
  • 基金项目:

    国家自然科学基金

FACIES AND ENVIRONMENT OF EARLY ORDOVICIAN AT HUANGHUACHANG,YICHANG,HUBEI

Hu Mingyi, Gong Wenpin Xiao Chuantao, Zhu Zhongde   

  1. Jianghan Petroleum Institute, Jingsha, Hubei
  • Received:1996-02-06 Revised:1996-09-04 Online:1996-12-25 Published:2012-01-16

PDF (PC)

753

被引次数

18

摘要：

宜昌黄花场下奥陶统可划分为流水成。的颗粒岩,生物成因的礁灰岩,生物化学成回的叠层石灰岩。复合成因的白云岩、泥灰岩及页岩等4大类14种岩相。它们形成了局限台地相、开阔台地相、台地滩相、台地礁相、浅海陆棚相等5种岩相组合。从下向上有规律地形成了2种岩相序列,即碳酸盐岩台地岩相序列和沉没台地岩相序列。

关键词: 岩相类型, 岩相序列, 岩相组合, 沉积环境, 早奥陶世

Abstract:

The Early Ordovician at Huanghuachang,Yichang can be classified into four group lithofacies: water current genetic grainstone ; biogenic reef limestone; biochemical genetic stromatolithic limestone;polygenetic micrltic dolostone;marl and shale. These lithofacies consist offive kinds of lithofacies asso(ations: restricted platform,open platform, platform shoal,platform reef, neritic shelf factes associations. They constitute two lithofacies sequences in ascending order:carbonate rock platform lithofacies sequence and subsided platform lithofaciessequence.