| 摘要: |
| 广西二叠纪沉积岩石类型有碳酸盐岩、碎屑岩、铁铝质岩、硅质岩及火山碎屑沉积岩等5种类型。古生物计有19个门类,553属,132带(组合),1313种。沉积海域分属陆地-陆缘滨岸相、陆缘碳酸盐台地或碳酸盐缓坡相、弧立碳酸盐台地相、台地边缘相、台缘斜坡-浅水盆地相和半深水-深水盆地相等不同的沉积环境。其沉积古地理格局严格受岗瓦纳板块南移、碎裂和特提斯海的扩张影响,可分为石炭纪泛大陆晚期发展阶段(马平晚期)、江大陆的裂解或特提斯海的分异阶段(栖霞期)、特提斯海的发育阶段(茅日期)、特提斯海的转换(吴家坪期)和扩张向三叠纪深水盆地发展演化阶段(长兴期)。矿产资源计有矿种21个,大型矿床9处,中型矿床10处,产地300余处。 |
| 关键词: 二叠纪地层 沉积古地理 矿产资源 |
| DOI： |
| 投稿时间：1995-08-02修订日期：1996-02-07 |
| 基金项目: |
|
| Essentials of Guangxi Permian Sediment and Mineral |
|
Zhou Huailing, Zhang Zhenxian
|
| (Guangxi Institute of Geology, Nanning, 530023) |
| Abstract: |
| The Permian sedimentary rocks in Guangxi include carbonate rocks, elastics rocks, ferruginousbauxitic rocks, siliceous rocks, and pyroclastic rocks. The Palaeobiococnosis has 19 biotype, 553 genera, 132 zone (association) and 1313 species. The sedimentary facies are put under continental-continental edge littoral facies, continental edge carbonate platform facies or carbonate ramp facies, isolated carbonate platform factes, edge facies of platform, slope facies on edge of platform-shallow basin facies and half deep-deep basin facies. Its sedimentary paleogeographic structure strictly received a tremendous influence from Gondwana Plate movement to south,breaking, and Tethys Sea floor spreading. Its revolution can be divided into Carboniferous Period Pangea late development stage (Maping late period),Pangea broken or Tehys sea resolved stage (Qixia period), Tethys sea development stage (Maokou periad), Tethys sea floor spreading to Triassic Period deep basin revolution stage (Zhangxing period). There are 21 types of mineral resources in over 300 spots, including 9 large mineral deposits and 10 middle mineral deposits. |
| Key words: permlan stratum sedimentary paleogeography mineral resources |
