| 兰州-民和盆地第三纪沉积特征及环境 |
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| 引用本文： | 顾延生,李长安,黄长生,唐小明,詹朝阳.兰州-民和盆地第三纪沉积特征及环境[J].地质通报,2000,19(4):337-343. |
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| 作者姓名： | 顾延生 李长安 黄长生 唐小明 詹朝阳 |
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| 作者单位： | 中国地质大学地球科学学院,湖北,武汉,430074 |
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| 摘 要： | 在野外区域地质调查的基础上 ,通过岩性、沉积构造、古流向、垂向序列、沉积体三维形态和组合及室内粒度分析、扫描电镜分析等 ,于研究区第三纪地层中识别出了三角洲相、三角洲平原相、河流相、湖泊相、冲积扇相及风成砂丘。系统地研究了盆地的垂向充填序列 ,并且就对应的环境演变进行了较详细的探讨。
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| 关 键 词： | 兰州—民和盆地 第三纪 沉积特征 环境 |
| 修稿时间： | 1999-03-01 |
Tertiary sedimentary features and environment of the Lanzhou-Minhe basin |
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| GU Yan-sheng,LI Chang-an,HUANG Chang-sheng,TANG Xiao-ming,ZHAN Zhao-yang.Tertiary sedimentary features and environment of the Lanzhou-Minhe basin[J].Geologcal Bulletin OF China,2000,19(4):337-343. |
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| Authors: | GU Yan-sheng LI Chang-an HUANG Chang-sheng TANG Xiao-ming ZHAN Zhao-yang |
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| Abstract: | On the basis of the field
regional geological surveys and through studies of the lithology, sedimentary structures,
paleocurrent direction, vertical sequence and three-dimensional shape and association of
sedimentary units and grain-size analysis and scanning electron microscope analysis, the
delta facies, delta plain facies, fluvial facies, lacustrine facies, alluvial facies and
eolian sand dunes are distinguished in Tertiary strata of the Lanzhou-Minhe basin. The
authors made a systematic study of the vertical infilling sequence of the basin. Moreover,
the corresponding environmental evolution is discussed in detail. |
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| Keywords: | Lanzhou-Minhe basin Tertiary sedimentary features environment |
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