论华南构造—成矿单元划分

Division of tectonic-metallogenetic units in South China

江西省地质矿产勘查开发局通过《华夏成矿省华南洋—滨太平洋构造演化与成矿作用》研究,在新厘定古华南洋构造成矿域的基础上,按构造域、板块、陆(地)块造山带、隆起带、坳陷带进行了构造单元的划分。将华南成矿单元新划分为扬子、华夏、东南海域(含台湾省、海南省)3个成矿省。华夏成矿省处于古华南洋构造成矿域与滨太平洋构造成矿域强烈复合地区,分为下扬子、南岭、浙闽3个成矿区(或亚省),长江中下游、江南东段、钦杭北段、钦杭南段、诸广—云开、雩山—九连山、武夷、东南沿海8个重要成矿带,17个亚带以及苏北盆地,初步划分了77个重要的矿集区、矿田,这种新的划分更好地反映了区域成矿规律和有利于矿产资源预测。

Through the study of the “Tectonic evolution and mineralization from the Huanan Ocean to the Pacifc Ocean in the Cathaysian metallogenic province” a division of tectonic units was completed by geologists of the Jiangxi Bureau of Exploration ＆ Development for Geology and Mineral Resources given thetectonic domain, plate, landmass （block）, orogenic belt, uplift belt, and depression belt on the basis of the new lyestablished tectonic metallogenic domain of the Paleo-Huanan Ocean. The South China metallogenic unit was recently classifed into the three metallogenic provinces, namely, the Yangtze province, Cathaysian province, and southeast sea province （including the Taiwan province and Hainan province）. Situated in the intensive composite parts between the Paleo-Huanan Ocean tectonic metallogenic domain and the marginal-Pacifc tectonic domain, the Cathaysian metallogenic province was classifed into three metallogenic provinces; the Lower Yangtze, Nanling, and Zhejiang-Fujian （or sub-province）; eight signifcant metallogenic belts of the middle and lower reaches of the Yangtze River including the south section of Jiangnan, north section of Qinhang, south section of Qinhang, Zhuguangshan-Yunkaishan, Yueshan-Jiulianshan, Wuyishan, and southeastern coastal areas; 17 subzones; and the northern Jiangsu as well. Meanwhile, 77 important ore concentration districts and ore felds were preliminarily classifed. This new division can better show the regional metallogenic trends and beneft the prediction of mineral resources.