摘要
本文应用因子分析法对巴里坤潮相沉积物的多种地球化学元素进行归纳和整理,得到反映气候状况的地球化学元素和氧化物类。表明沉积地层学特征同样具有显示古气候特征的同步变化现象。
According to the inducted and sorted data of geochemical elements in the lacustrine sediments of Barkol Lake with the factor analyzing method,the content variation of geochemical elements possesses a clear indicative significance for paleoclimatic evolution. Comprehensively compared with the sporepollen data, lithological feature and dendrologic analyzing results, the area of Barkol Lake has experienced 4 cold—moisture climatic periods: 1564—1588 A. D., 1620—1710 A. D. , 1840—1910A. D., 1970—1980A. D.; and 4 warm—dry periods: 1588—1628A. D., 1710—1840 A. D., 1910—1968 A. D. and after 1980s since last 500 years. This climatical evolution pattern coincides with that of other areas in China.
出处
《干旱区地理》
CSCD
北大核心
1993年第4期38-44,共7页
Arid Land Geography
基金
国家自然科学基金
关键词
古气候
地球化学元素
湖相沉积
geochemical element, paleoclimate lacustrine sediment, Barkol Lake
