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引用本文:陈骥,张万益,姜在兴,周宝洁,刘超,许文茂. 环青海湖地区风场特征及其对沉积体系的影响[J]. 中国地质, 2021, 48(6): 1935-1946.
CHEN Ji,ZHANG Wanyi,JIANG Zaixing,ZHOU Baojie,LIU Chao,XU Wenmao. Characteristics of wind field around Qinghai Lake and its influence on sedimentary system[J]. Geology in China, 2021, 48(6): 1935-1946(in Chinese with English abstract).
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环青海湖地区风场特征及其对沉积体系的影响
陈骥1,2, 张万益1, 姜在兴2, 周宝洁3, 刘超2, 许文茂4
1.中国地质调查局发展研究中心, 北京 100037;2.中国地质大学(北京), 北京 100083;3.中国石化胜利油田分公司勘探开发研究院, 山东 东营 257015;4.北京科技大学, 北京 100083
摘要:
为分析风场与沉积体系之间的耦合关系,综合运用野外考察、遥感影像解译和气象数据综合分析等手段。分析结果表明:风场的变化除了受控于盛行风系以及季风的变化以外,还受到地貌、湖泊效应产生的湖陆风等因素影响。风场对青海湖沉积体系的影响体现在局部区域气候的干湿、物源的供给量、波浪和沿岸流的强弱程度等方面。局部区域气候的干湿差异性造成地表植被覆盖率有所不同,导致地表的抗风化能力有所不同。抗风化能力较弱的地带为风砂堆积提供充足的物源。盛行风向产生的波浪和沿岸流对湖泊中的砂体产生较强的搬运和改造作用。
关键词:  青海湖  风场  沉积体系  控制因素  地质调查工程
DOI:10.12029/gc20210620
分类号:P512.2+1;P512.2
基金项目:中国地质调查局项目(DD20190464)和国家重大科技专项(2011ZX05009-002)共同资助。
Characteristics of wind field around Qinghai Lake and its influence on sedimentary system
CHEN Ji1,2, ZHANG Wanyi1, JIANG Zaixing2, ZHOU Baojie3, LIU Chao2, XU Wenmao4
1.Development andResearch center, China Geological Survey, Beijing 100037, China;2.China University of Geosciences, Beijing 100083, China;3.Exploration and Development Research Institute, Shengli Oilfield Company, SINOPEC, Dongying 257015, Shandong, China;4.University of Science & Technology Beijing, Beijing 100083, China
Abstract:
The field investigation, remote sensing image interpretation and comprehensive analysis of meteorological data were used to analyze the coupling relationship between wind field and sedimentary system. The analysis results show that the change of wind field is not only controlled by the change of prevailing wind system and monsoon, but also affected by geomorphology and lake land wind generated by lake effect and other factors. The influence of wind field on the Qinghai Lake sedimentary system embodies in the local area of dry and wet climate, source of supply, and degree of wave and the strength of the offshore current. The difference of dry and wet climate in local region results in the difference of vegetation coverage and the difference of weathering resistance. The weak weathering resistance zones provide ample source for sand accumulation. The waves and offshore current resulting from prevailing wind direction strengthen the transport and transform function for sand body.
Key words:  Qinghai Lake  wind field  sedimentary system  controlling factors  geological survey engineering