论文部分内容阅读
中国南方Pb同位素填图表明华南-扬子之间存在Pb同位素的急变带,标志着华南-扬子边界。这一急变带控制了中国南方所有与深源成矿作用有关的超大型矿床(共10个)的形成,产出位置与急变带收缩、转折与两边形成等值线封闭圈密切相关。急变带常与重力正异常急变带相应。它所对应的构造线与目前地质上认为的华南-扬子边界大体相当,但并不一定是地表所见的主断裂。
Mapping of Pb isotopes in southern China shows that there is an abrupt change of Pb isotope between South China and Yangtze, which indicates the South China-Yangtze boundary. This abrupt zone controlled the formation of all 10 superlarge deposits related to deep-source metallogenesis in southern China. The location of output and the abrupt zone shrinkage are closely related to the formation of the closed contour contours on both sides. Blast band often with gravitational anomalous abrupt changes corresponding. Its corresponding tectonic line is roughly equivalent to the presently thought South China-Yangtze boundary, but not necessarily the main fault seen on the earth’s surface.