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中国季风沙区晚更新世以来环境及其变化 被引量:26
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作者 李保生 吴正 +8 位作者 David Dian ZHANG 范安康 阎满存 孙武 靳鹤龄 董光荣 祝一志 高全洲 张甲申 《地质学报》 EI CAS CSCD 北大核心 2001年第1期127-137,共11页
本文以对毛乌素沙漠萨拉乌苏河流域米浪沟湾地层剖面晚更新世—全新世砂丘与河湖相、古土壤互为叠覆的高分辨率的气候地层记录的认识出发,同时基于对中国北方现代冬春季节风沙、尘霾活动发生的区域性气候—地质过程的理解,将今释古,反... 本文以对毛乌素沙漠萨拉乌苏河流域米浪沟湾地层剖面晚更新世—全新世砂丘与河湖相、古土壤互为叠覆的高分辨率的气候地层记录的认识出发,同时基于对中国北方现代冬春季节风沙、尘霾活动发生的区域性气候—地质过程的理解,将今释古,反演了该时期中国季风区沙漠沙地曾经历的27个沙漠扩缩的周期性变化,并认为该剖面风砂沉积是过去地质时代季风沙区乃至整个中国沙区类似由现代这种冬春季西伯利亚—蒙古反气旋风系即冬季风向南伸展导致的若干风沙风尘动态过程的结果,而河湖相和古土壤的发育则主要与季风沙区受惠于东亚夏季风的影响有关。 展开更多
关键词 中国季风区 晚更新世-全新世 湾地层剖面 沙漠期 气候波动 季风沙区 沉积环境
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The paleoclimate environment and recent sea level change on the seashores of Thailand Gulf in Southeast Asia
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作者 Hu Dongsheng Li Xiaoyu +2 位作者 Pang Xilei Tian Xinhong Zhang Guowei 《Engineering Sciences》 EI 2014年第1期51-58,共8页
This paper analyzed and researched on several significant natural geological sections from the views of stratum-sequence stratigraphy,climate stratigraphy,event stratigraphy and regional stratigraphy by the investigat... This paper analyzed and researched on several significant natural geological sections from the views of stratum-sequence stratigraphy,climate stratigraphy,event stratigraphy and regional stratigraphy by the investigation of Thailand,Malaysia and Singapore. In combination with the coupling relationship between the life-temperature of regional life zone and the evolution of geological environment,this paper exactly made out the geological sediment records of paleoclimate times in different time scales of 3 kaBP,1 kaBP and 0.5 kaBP since the past glacier age of Quaternary period,and it is consecutive and authentic for the material medium and time joint. These studies definitely reflected that the sea level of Thailand Gulf area is in tendency of continually dropping in recent years. They also provided important and new information for the global change analysis. 展开更多
关键词 recent sea level change natural geological section global change Thailand Gulf in Southeast Asia
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