长江三峡库区玉溪遗址地层沉积特征研究SEDIMENTARY FEATURES OF THE STRATA AT THE YUXI SITE OF THE THREE GORGES RESERVOIR AREA
徐伟峰,朱诚
摘要(Abstract)：
在考古断代和AMS14C测年基础上,通过对洪水沉积环境以及三峡库区中坝遗址1981年洪水沉积和玉溪疑似古洪水沉积的粒度对比分析,发现它们的平均粒径、分选系数、偏度和峰度都在同一值域范围内;概率累积曲线都呈明显的三段式,从而推断出玉溪遗址的文化间隙层为古洪水沉积。
关键词(KeyWords)： 古洪水沉积;粒度特征;第四纪;玉溪遗址;长江三峡;重庆市
基金项目(Foundation): 国家自然科学基金重大研究计划项目(90411015);; 教育部高等学校博士点基金项目(20050284011);; 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室开放基金项目(SKLLQG0503);; 南京大学“985”自然地理学科建设与南京大学测试基金项目资助
作者(Author): 徐伟峰,朱诚
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