| 东昆仑阿拉克湖地区第四纪水系演化过程及其趋势 |
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| 引用本文： | 向树元,王国灿,林启祥,吴燕玲,张智勇.东昆仑阿拉克湖地区第四纪水系演化过程及其趋势[J].地质科技情报,2003,22(4):16-20. |
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| 作者姓名： | 向树元 王国灿 林启祥 吴燕玲 张智勇 |
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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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| 基金项目： | 国家自然科学基金资助项目(40072062)，国土资源部科研项目"青藏高原新生代填图方法集成研究"(2000201-2-2)，中国地质调查局"1∶25万阿拉克湖幅区域地质调查"项目(19991300004021) |
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| 摘 要： | 根据第四系沉积物的沉积时代、沉积类型及盆山耦合与迁移规律，将东昆仑阿拉克湖地区第四纪水系变迁划分了4个阶段：早更新世小型内陆盆地无序水系阶段；中更新世冰川水系与东流水系阶段；晚更新世柴达木盆地内陆水系向南溯源侵蚀阶段；全新世黄河外泄水系形成与发展阶段。根据研究区及相邻地区黄河水系和柴达木盆地内陆水系的溯源侵蚀发展历史及趋势分析，认为研究区未来水系发展趋势不一定是加鲁河袭夺鄂陵湖、扎陵湖两湖及黄河水系，而可能是黄河加快下蚀作用和溯源侵蚀，鄂陵湖和扎陵湖将逐渐消失成为河流，黄河水系最终将袭夺柴达木内陆盆地水系。
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| 关 键 词： | 黄河水系 柴达木盆地内陆水系 水系演化 第四纪 东昆仑 |
| 文章编号： | 1000-7849(2003)04-0016-05 |
| 修稿时间： | 2003年6月2日 |
EVOLVEMENT AND ITS TENDENCY OF THE DRAINAGE SYSTEM DURING QUATERNARY IN THE ALAKE LAKE AREA,EASTERN KUNLUN MOUNTAINS,QINGHAI PROVINCE,CHINA |
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| XIANG Shu-yuan.EVOLVEMENT AND ITS TENDENCY OF THE DRAINAGE SYSTEM DURING QUATERNARY IN THE ALAKE LAKE AREA,EASTERN KUNLUN MOUNTAINS,QINGHAI PROVINCE,CHINA[J].Geological Science and Technology Information,2003,22(4):16-20. |
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| Authors: | XIANG Shu-yuan |
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| Institution: | XIANG Shu-yuan~ |
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| Abstract: | Four periods in the evolution of the drainage system in Alake Lake area can be divided by the study on the Quaternary deposition ages,types,coupling of the basin-range and their development.A disorder drainage system period in inner-continental basin occurred during the Early Pleistocene.While a glacial drainage system and flowing eastward drainage system developed during the Middle Pleistocene.During the Late Pleistocene,there was a stage,when the Qaidam Basin drainage system was eroded southward tracing to the source.In Holocene,the Yellow River drainage system was formed and developed.Hence,the development tendency of the drainage system in future is proposed based on the analysis of the development of the headwaters of the Yellow River drainage system and the Qaidam Basin drainage system.The erosion of the Yellow River headwaters will strengthen the tracing to the source and will capture the Jialuhe River of the Qaidam Basin drainage system.The Eling Lake and the Zhaling Lake will disappear gradually.The Yellow River drainage system will capture the Qaidam Basin drainage system finally. |
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| Keywords: | Yellow River drainage system Qaidam Basin inland drainage system drainage system evolvement Quaternary Eastern Kunlun Mountains |
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