天山新构造造山带特征与铀成矿区划分

Neo-tectonic Orogenic Belt and Uranium Metallotectonic Unit in Tianshan

天山新构造造山带,泛指东自中蒙边界戈壁天山、西至乌兹别克斯坦西北端,全长约5 000 km的东西向新生代跨国山系,归属于亚欧东西向活化构造带。该带也是全球最著名的铀成矿造山带之一。笔者根据活化构造理论和大地构造控矿的观点,基于该造山带不同区段地质特征的对比分析,提出天山新构造造山带与铀成矿单元相对应的3级划分方案,并对国内新疆天山地区的找矿工作提出建议。

＂Pan Tianshan Neo-tectonic belt＂ usually refers to the activated EW strike tectonic orogenic belt which extend over 5000 km from east Gebi Tianshan in the border between China and Mongolia to the west Tianshan in the north border of Uzbekistan. It is an international orogenic belt in central-Asia and belong to the EW reactivated tectonic zone of Eurasia. Within the Tianshan orogenic belt, more than 2 million tons of uranium ores have been discovered, making it the most famous uranium metallotectonic belt in the world. According to the point of reactivated tectonics and the tectonic-controlled metallogenic model, this paper proposed a division pattern characterized by four different levels to reveal the relations between the tectonic background of Pan Tianshan orogeny and the uranium metallotectonic units.