| 青海玉树囊谦第三纪盆地岩相古地理研究 |
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| 引用本文： | 王世锋, 伊海生, 王成善. 青海玉树囊谦第三纪盆地岩相古地理研究[J]. 西北地质, 2001, 34(1): 64-67. |
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| 作者姓名： | 王世锋 伊海生 王成善 |
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| 作者单位： | 1.北京大学地质系, 100871;; 2.成都理工学院沉积研究所, 四川 成都 610059 |
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| 基金项目： | 原地矿部“九五”重大基础研究项目“地质记录与青藏高原隆升”子课题“重要盆地的沉积记录与高原隆升”资助。 |
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| 摘 要： | 从盆地沉积特征及地层古生物入手,通过分析早第三纪囊谦盆地气候环境,认为属湿润多雨的热带-亚热带气候。盆地岩相古地理揭示,盆地早期为反映构造活动强烈的冲积扇-辫状河三角洲-湖泊沉积组合;晚期为反映构造稳定的河流-湖泊-小型扇三角洲沉积组合。
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| 关 键 词： | 囊谦第三纪盆地 沉积组合 岩相古地理 |
| 文章编号： | 1009-6248(2001)01-0064-04 |
| 收稿时间： | 2000-10-22 |
| 修稿时间： | 2000-10-22 |
Sedimentary facies andpalaeogeography features of Nangqian Tertiary basin in Yushu district,Qinghai |
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| WANG Shi-feng, YI Hai-sheng, WANG Cheng-shan. Sedimentary facies and palaeogeography features of Nangqian Tertiary basin in Yushu district, Qinghai[J]. Northwestern Geology, 2001, 34(1): 64-67. |
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| Authors: | WANG Shi-feng YI Hai-sheng WANG Cheng-shan |
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| Affiliation: | 1.Geology Department of P.K.U;; 2.Sedimentary Institution of C.D.I.T |
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| Abstract: | Through studying features of sedimentary and stratigraphic paleontology in Nangqian Tertiary basin,the authors point out the climate at Early Tertiary in basin is tropical subtropical and rainy,the basin is not more than 1 000 m above sea level.The sedimentary faces and palaeogeography discover that in early basin development sedimentary assemblage is fan braided delta lake which reflects tectonic active;in mature basin development the sedimentary assemblage is river lake delta |
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| Keywords: | Nangqian Tertiary basin sedimentary assemblage sedimentary faces and palaeogeography |
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