摘要
根据中国东部各省(区、市)区域地质志、1∶50万地质图和中国东部地壳与岩石元素丰度研究成果首次编制的中国东部60种元素的岩石地球化学图,基本反映了与特定岩性有关的区域岩石地球化学元素含量分布特征和与大地构造单元有关的区域地球化学元素含量分布特征,直观表达了中国东部空间地理上元素背景含量的宏观分布与变化,以及不同大地构造单元元素背景含量的变化趋势。这一成果为勘查地球化学、环境地球化学,特别是区域化探扫面水系沉积物资料的定量解释提供了基本依据,为基础地质、大地构造、区域成矿研究提供了重要资料,也为地球化学块体理论及其形成机制的研究提供了强有力的支持。
Lithogeochemical maps of 60 elements first compiled based on the regional geology of 17 provinces （autonomous regions and municipalities）, 1：500000 geological maps and element abundances of the continental crust and rocks in eastern China in the main reflect the distribution characteristics of regional lithogeochemical element contents related to particular rocks （carbonate rocks, granites or basalts） and regional geochemical element content related to different geotectonic units and also directly show the macroscopic distribution and variation of the background contents of elements in spatial geography and the variation trend of background contents of elements of different tectonic units in eastern China. These maps provide the basis for exploration geochemistry, environmental geochemistry and especially the quantitative interpretation of data of stream sediments in regional geochemical reconnaissance. The elemental distribution in the lithogeochemical maps in eastern China supplies important information for the study of basic geology, tectonics and metallogeny and gives strong supports to the study of the theory of geochemical blocks and their genetic mechanism.
出处
《地质通报》
CAS
CSCD
北大核心
2005年第10期897-905,共9页
Geological Bulletin of China
基金
国家科技部社会公益研究专项项目(2001DIB10076)
国家重要基础研究发展规划项目(1999CB04315)资助
关键词
岩石地球化学图
元素背景含量的空间分布
信息
中国东部
lithogeochemical map
spatial distribution of elemental background contents
information
eastern China
