中国地质2011,Vol.38Issue(5):1135-1149,15.
秦祁昆造山带重要成矿事件与构造响应
Important metallogenic events and tectonic response of Qinling, Qilian and Kunlun orogenic belts
摘要
Abstract
Qinling, Qilian and Kunlun orogenic belts were formed by the superimposition of Paleo-Asian and Tethys structural domains, which had played an important role in the formation of China's continent during Phanerozoic. The tectonic evolution is complex, and mineralization has diverse characteristics. The significant metallogenic periods are Paleozoic, Mesozoic and Cenozoic, with the important ore-forming events occurring in Proterozoic. Based on studies of the ore-forming events of Qinling, Qilian and Kunlun orogenic belts in relation to their structural environments, the authors have found that the main metallogenic events correspond to specific structural responses. Accordingly, the paleo-Proterozoic Bulunkou magnetite deposit in West Kunlun might have been an important iron formation event. The Qimantage ore concentrated area located along die convergence zone between Altun and East Kunlun tectonic belts is a main tectonic syntaxis. Newly discovered ore deposits were produced by the structure transition and multi-stage functions. The Jinchuan giant Ni-Cu deposit in the Longshoushan Mountain adjacent to the Northern Qilian Mountain is a product of magma upwelling of mantle-derived material in Proterozoic. The Mayuan Pb-Zn deposit is a relatively typical MVT deposit consistent with the structural evolution of the Qinling orogenic belt.关键词
秦祁昆造山带/构造演化/构造结/成矿事件/构造响应Key words
Qinling, Qilian and Kunlun orogenic belts/structural evolution/tectonic syntaxis/metallogenic event/structural response分类
天文与地球科学引用本文复制引用
李文渊,张照伟,高永宝,谭文娟,姜寒冰,郭周平..秦祁昆造山带重要成矿事件与构造响应[J].中国地质,2011,38(5):1135-1149,15.基金项目
国家科技支撑重点项目课题(2006BAB01A01和2006BAB01B08)和国家自然科学基金(40772062)、中国地质调查局地质大调查项目(1212010620507、1212011121088、1212011121092、1212010911032、1212011120483)资助. (2006BAB01A01和2006BAB01B08)