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| 西藏比洛错一带布曲组中段膏盐地层的地质特征 | |
| 引用本文： | 苏铁牛,张维忠,张树岐,张辉.西藏比洛错一带布曲组中段膏盐地层的地质特征[J].吉林地质,2007,26(2):10-15. |
| 作者姓名： | 苏铁牛 张维忠 张树岐 张辉 |
| 作者单位： | 1. 吉林省第三地质调查所,吉林,四平,136000 2. 松原市国土资源局,吉林,松原,138000 3. 吉林省地质调查院,吉林,长春,130061 |
| 摘 要： | 比洛错一带出露的布曲组中含多层石膏,是藏北羌塘盆地中重要的含膏盐地层,膏盐的累计厚度达284.73 m,可以直接开发利用。布曲组中的生物碎屑灰岩和钙质泥岩层中产大量的双壳类和腕足类化石,时代为中侏罗世巴通期。该岩石组合特征可与雁石坪地区的布曲组进行对比。首次在该地层中发现海相辐鳍鱼亚纲类化石(A ctinoptoryg ii),丰富了藏北羌塘盆地侏罗纪古生物研究的内容。 |
| 关 键 词： | 膏盐 布曲组 巴通期 中侏罗世 羌塘盆地 |
| 文章编号： | 1001-2427（2007）02-010-06 |
| 收稿时间： | 2006-12-24 |
| 修稿时间： | 2007-04-07 |
Geologic features of gypsum strata in the middle part of Buqu Formation, Biluocuo area, Tibet |
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| SU Tie-niu,ZHANG Wei-zhong,ZHANG Shu-qi,ZHANG Hui.Geologic features of gypsum strata in the middle part of Buqu Formation, Biluocuo area, Tibet[J].Jilin Geology,2007,26(2):10-15. | |
| Authors: | SU Tie-niu ZHANG Wei-zhong ZHANG Shu-qi ZHANG Hui |
| Institution: | 1. The Third Geologic Survey of Jilin Province, Siping 136000. China; 2. Bureau of Land and Reso trees of Songyuan City. Songyuan 138000, China; 3. Institute of Geologic Survey of Jilin t Province, Changchun 130061, China |
| Abstract: | The gypsum strata are out cropped in the Buqu Formation,Biluocuo area,which are an important gypsum strata in the Qiangtang Basin,northern part of Tibet,its thickness can come to 284.73 m,so,it can be developed and utilized directly. There are rich bivalve and brachiopodous fossils within the bioclastic limestone and calcareous mudstone in the Buqu Formation in age from Bathonian.The rock association characteristics can compare with Buqu Formation in the Yanshiping area.The discovery of the Actinopeorygii fossils in the study area for the first time richens study contents for the Jurassic paleontology in the Qiangtang Basin,northern part of Tibet. |
| Keywords: | gypsum Buqu Formation Bathonian middle Jurassic Qiangtang Basin |
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