论文部分内容阅读
北山北带古生代期间先后经历了两期板块构造体制和两次主要的造山作用。早古生代以沙泉子—明水—小黄山蛇绿岩带洋壳残片,显示俯冲带的存在,早泥盆世闭合、碰撞造山,这是早期板块体制。与此同时形成了一系列的金属矿床(点),比如方山口、双鹰山和塔水等钒—磷—铀或磷矿床(点),白云山—东七一山火山热液—沉积型的铜铁矿床(点),公婆泉铜矿是这个时期的重要典型矿床;晚古生代,俯冲带向北后退,觉罗塔格—大南山—园包山为岛弧增生带,其北侧为中东亚洋。晚石炭世沿康古尔塔格—黄山一带俯冲,哈萨克斯坦、准噶尔与塔里木板块对接、碰撞、造山,这是晚期板块体制。该时期形成的矿床(点)代表是南金山、马庄山、460金矿床、乌珠尔嘎顺和额勒根乌兰乌拉铜矿预查区、红石山铬铁矿床、黑鹰山铁矿床、明锡山As、Sn矿床、红尖兵山W矿床、流沙山W-Mo矿床等;二叠纪进入陆内演化。
North Paleozoic North Paleozoic period has experienced two tectonic framework and two major orogenic activities. The Early Paleozoic with sand springs - Mingshui - Huangshan ophiolite belt oceanic crust, showing the existence of subduction zone, Early Devonian closure, collision orogeny, which is the early plate system. At the same time, a series of metal deposits (spots) have been formed, such as vanadium-phosphorus-uranium or phosphate deposits (points) such as Fangshankou, Shuangying Mountain and Tataki, Baiyun Mountain- Type copper-iron deposit (point), Gongpoquan copper deposit is an important typical deposit of this period. During the Late Paleozoic, the subduction zone retreated northward, and the Jueluotag-Dayanshan-Yuanbaoshan was the island arc accretion belt with its north Side of the Middle East and Asia. Late Carboniferous along the Kanggultag - Huangshan area subduction, Kazakhstan, Junggar and Tarim plate docking, collision, orogenic, which is the late plate system. The ore deposits (spots) formed during this period are the gold deposits of the South Jinshan, Mazhuangshan, 460 gold deposits, the pre-investigation area of the Ujulgargun and Erechuan Wulanwula copper deposits, the Hongshishan chromite deposit and the Heiyingshan iron deposit , Mingxishan As, Sn deposits, Hongjianbing W deposit, and Liushashan W-Mo deposit; and Permian inland evolution.