青海湖现代沉积环境与沉积相特征

王新民; 宋春晖; 师永民; 晁吉俊; 武安斌

ISSN 1000-0550 CN 62-1038/P

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青海湖现代沉积环境与沉积相特征

王新民, 宋春晖, 师永民, 晁吉俊, 武安斌

文章导航 > 沉积学报 > 1997 > 15(S1): 157-162

王新民, 宋春晖, 师永民, 晁吉俊, 武安斌. 青海湖现代沉积环境与沉积相特征[J]. 沉积学报, 1997, 15(S1): 157-162.

引用本文:

王新民, 宋春晖, 师永民, 晁吉俊, 武安斌. 青海湖现代沉积环境与沉积相特征[J]. 沉积学报, 1997, 15(S1): 157-162.

Wang Xinmin, Song Chunhui, Shi Yongmin, Chao Jijun, Wu Anbin. Modern Sedimentary Environment and Sedimentary Facies Characteristics in Qinghai Lake[J]. Acta Sedimentologica Sinica, 1997, 15(S1): 157-162.

Citation:

Wang Xinmin, Song Chunhui, Shi Yongmin, Chao Jijun, Wu Anbin. Modern Sedimentary Environment and Sedimentary Facies Characteristics in Qinghai Lake[J]. Acta Sedimentologica Sinica, 1997, 15(S1): 157-162.

王新民, 宋春晖, 师永民, 晁吉俊, 武安斌. 青海湖现代沉积环境与沉积相特征[J]. 沉积学报, 1997, 15(S1): 157-162.

引用本文:

王新民, 宋春晖, 师永民, 晁吉俊, 武安斌. 青海湖现代沉积环境与沉积相特征[J]. 沉积学报, 1997, 15(S1): 157-162.

Citation:

青海湖现代沉积环境与沉积相特征

1.
西北地质研究所,兰州 730020;
2.
兰州大学,兰州 730000

详细信息

作者简介:
王新民,男,36岁,硕士高级工程师,石油地质学.

中图分类号: P512.2~3

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文章访问数: 649
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被引次数: 0

Modern Sedimentary Environment and Sedimentary Facies Characteristics in Qinghai Lake

1.
Northwest Geology Research Institute,CNPC,Lanzhou 730020;
2.
Lanzhou University,Lanzhou 730000

摘要

摘要: 青海湖系第四纪以来形成的一个高原内陆断陷湖盆。湖盆的形成与演化经历了断陷期、河湖共存期、全盛时期和萎缩时期四个阶段,目前处于萎缩期。沉积体系展布受气候、物源、河流、地形、构造演化和断裂系统等多种因素的控制,具有山间断陷近物源沉积的特点。沿盆地长轴方向,西部发育有辫状河、曲流河、三角洲、水下河、深湖相沉积体系;东部有风成堆积相、泻湖相。湖盆南北短轴方向,北岸较缓,形成山间河道、辫状河、洪积扇、扇三角洲和滨浅湖沉积体系;南岸较陡,形成几个大大小小的冲积扇裙和水下扇沉积。滨浅湖地带,沿岸砂坝、沙嘴、砾石滩、沙滩、泥坪、沼泽、湖湾相当发育。与国内外其它湖泊相比,风成堆积、水下河流相和滨岸砂坝较为发育是其特点。本文是在野外考察、采样分析和综合研究的基础上,对青海湖的形成及其区域构造背景、湖泊环境、沉积作用和沉积相,以及湖盆的构造与沉积演化进行了一些探讨。
- 青海湖 /
- 现代沉积 /
- 沉积相 /
- 沉积环境 /
- 断陷湖盆 /
- 构造沉积体系
Abstract: Qinghai lake is a plateau inland intermountain rift-subsidence Iake basin developped since quaternary. The development andevolution of the lake basin have experienced four stages, that is, the rift period, the lake and river coexistence period, the mostflourishing development period and the shrivel period. The distribution of the sedimentary facies is controlled by climate, sedimentsource, rivers, topography and tectonic evolution histories, which is charactered by intermountain rift-subsidence and near sedi-ment source deposition. Along the long axis direction of the basin, the sedimentary deposit system of braided river, meanderingriver, delta, subaqueous channel and deep water lacustrine facies are developed at the west end, whereas at the east end of thebasin mainly distributed the aeolian and lagoon deposits. In the areas along the short axis direction of the basin, the systems of in-termontain fluvial, braided river, diluvial fan, fan-delta and shallow lake shore facies are deposited. The south bank is relativelysteeper, where mainly formed several large and small alluvial fan or aprons. In shallow lake shore areas, sedimentary deposits oflongshore bar, sand spit, shingle beach, sand beach, mudflat, swamp and lakebay facies are well developed. Compared with otherlakes in China and abroad, the deposits in Qinghai lake are featured by their better developed aeolian, subaqueous fluvial and long-shore bar facies. Based on field survey, sampling anisys and comprehensive research the paper discusses its development, regional tectonics mi-lieu, lake environment, sedimentation, sedimentary facies, and structure-sediment evolution of lake basin.
- Qinghai Lake /
- modern deposition /
- sedimentary facies /
- sedimentary enviroment /
- rift-subsidence lake /
- tectonic-sedimentary system

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参考文献(2)

[1]	中国科学院兰州地质研究所等育海湖综合考察报告.北京:科学出版社.1979,15-22.
[2]	中国科学院兰州分院等.青海湖近代环境的演化和预测.北京:科学出版社，1994.7-9.

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青海湖现代沉积环境与沉积相特征

1. 西北地质研究所,兰州 730020;

2. 兰州大学,兰州 730000

作者简介:
王新民,男,36岁,硕士高级工程师,石油地质学.

中图分类号: P512.2~3

关键词:

青海湖 /

沉积相 /

摘要: 青海湖系第四纪以来形成的一个高原内陆断陷湖盆。湖盆的形成与演化经历了断陷期、河湖共存期、全盛时期和萎缩时期四个阶段,目前处于萎缩期。沉积体系展布受气候、物源、河流、地形、构造演化和断裂系统等多种因素的控制,具有山间断陷近物源沉积的特点。沿盆地长轴方向,西部发育有辫状河、曲流河、三角洲、水下河、深湖相沉积体系;东部有风成堆积相、泻湖相。湖盆南北短轴方向,北岸较缓,形成山间河道、辫状河、洪积扇、扇三角洲和滨浅湖沉积体系;南岸较陡,形成几个大大小小的冲积扇裙和水下扇沉积。滨浅湖地带,沿岸砂坝、沙嘴、砾石滩、沙滩、泥坪、沼泽、湖湾相当发育。与国内外其它湖泊相比,风成堆积、水下河流相和滨岸砂坝较为发育是其特点。本文是在野外考察、采样分析和综合研究的基础上,对青海湖的形成及其区域构造背景、湖泊环境、沉积作用和沉积相,以及湖盆的构造与沉积演化进行了一些探讨。

English Abstract

Modern Sedimentary Environment and Sedimentary Facies Characteristics in Qinghai Lake

1. Northwest Geology Research Institute,CNPC,Lanzhou 730020;

2. Lanzhou University,Lanzhou 730000

Keywords:

Abstract: Qinghai lake is a plateau inland intermountain rift-subsidence Iake basin developped since quaternary. The development andevolution of the lake basin have experienced four stages, that is, the rift period, the lake and river coexistence period, the mostflourishing development period and the shrivel period. The distribution of the sedimentary facies is controlled by climate, sedimentsource, rivers, topography and tectonic evolution histories, which is charactered by intermountain rift-subsidence and near sedi-ment source deposition. Along the long axis direction of the basin, the sedimentary deposit system of braided river, meanderingriver, delta, subaqueous channel and deep water lacustrine facies are developed at the west end, whereas at the east end of thebasin mainly distributed the aeolian and lagoon deposits. In the areas along the short axis direction of the basin, the systems of in-termontain fluvial, braided river, diluvial fan, fan-delta and shallow lake shore facies are deposited. The south bank is relativelysteeper, where mainly formed several large and small alluvial fan or aprons. In shallow lake shore areas, sedimentary deposits oflongshore bar, sand spit, shingle beach, sand beach, mudflat, swamp and lakebay facies are well developed. Compared with otherlakes in China and abroad, the deposits in Qinghai lake are featured by their better developed aeolian, subaqueous fluvial and long-shore bar facies. Based on field survey, sampling anisys and comprehensive research the paper discusses its development, regional tectonics mi-lieu, lake environment, sedimentation, sedimentary facies, and structure-sediment evolution of lake basin.

王新民, 宋春晖, 师永民, 晁吉俊, 武安斌. 青海湖现代沉积环境与沉积相特征[J]. 沉积学报, 1997, 15(S1): 157-162.

引用本文:

王新民, 宋春晖, 师永民, 晁吉俊, 武安斌. 青海湖现代沉积环境与沉积相特征[J]. 沉积学报, 1997, 15(S1): 157-162.

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青海湖现代沉积环境与沉积相特征

作者简介:
王新民,男,36岁,硕士高级工程师,石油地质学.

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Modern Sedimentary Environment and Sedimentary Facies Characteristics in Qinghai Lake

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目录

青海湖现代沉积环境与沉积相特征

1. 西北地质研究所,兰州 730020;

2. 兰州大学,兰州 730000

作者简介:
王新民,男,36岁,硕士高级工程师,石油地质学.

English Abstract

Modern Sedimentary Environment and Sedimentary Facies Characteristics in Qinghai Lake

1. Northwest Geology Research Institute,CNPC,Lanzhou 730020;

2. Lanzhou University,Lanzhou 730000

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青海湖现代沉积环境与沉积相特征

作者简介: 王新民,男,36岁,硕士高级工程师,石油地质学.

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Modern Sedimentary Environment and Sedimentary Facies Characteristics in Qinghai Lake

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青海湖现代沉积环境与沉积相特征

1. 西北地质研究所,兰州 730020; 2. 兰州大学,兰州 730000

作者简介: 王新民,男,36岁,硕士高级工程师,石油地质学.

English Abstract

Modern Sedimentary Environment and Sedimentary Facies Characteristics in Qinghai Lake

1. Northwest Geology Research Institute,CNPC,Lanzhou 730020; 2. Lanzhou University,Lanzhou 730000

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
王新民,男,36岁,硕士高级工程师,石油地质学.

1. 西北地质研究所,兰州 730020;

2. 兰州大学,兰州 730000

作者简介:
王新民,男,36岁,硕士高级工程师,石油地质学.

1. Northwest Geology Research Institute,CNPC,Lanzhou 730020;

2. Lanzhou University,Lanzhou 730000