Control of Deep Tectonics on the Superlarge Deposits in China

来源 :Acta Geologica Sinica(English Edition) | 被引量 : 0次 | 上传用户:gaolch008
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Seventy-three large-superlarge deposits in China were formed in 4 metallogenic epochs, and located in 6 metallogenic domains. By combing their time-space distribution and the relevant data of crustal thickness, we discuss the control conditions of deep tectonics on superlarge deposits. The various spatial variation of the crustal thickness where deposits locate is closely related to their different tectonic setting. The crustal thickness of the region where deposits are in the Precatnbrian metallogenic epoch is 37.1 km and shows double-peak distribution, which is related to the different tectonic-mineralization processes in the Tarim-North China and Yangtze metallogenic domains. The crustal thickness of the region where deposits are in the Paleoproterozoic metallogenic epoch is 43.4 km and shows normal distribution, which is the result of “pure” mineralization setting. The crustal thickness of the region where deposits are in the Late Palaeozoic-Early Mesozoic metallogenic epoch is about 41.2 km and show Seventy-three large-superlarge deposits in China were formed in 4 metallogenic epochs, and located in 6 metallogenic domains. By combing their time-space distribution and the relevant data of crustal thickness, we discuss the control conditions of deep tectonics on superlarge deposits. The various spatial variation of the crustal thickness where deposits locate is closely related to their different tectonic setting. The crustal thickness of the region where deposits are in the Precatnbrian metallogenic epoch is 37.1 km and shows double-peak distribution, which is related to the different tectonic-mineralization processes in the Tarim-North China and Yangtze metallogenic domains. The crustal thickness of the region where deposits are in the Paleoproterozoic metallogenic epoch is 43.4 km and shows normal distribution, which is the result of “pure” mineralization setting. The crustal thickness of the region where deposits are in the Late Palaeozoic-Early Mesozoic metallogenic epoch is a bout 41.2 km and show
其他文献
本文以高职院校生物监测课堂中水体中总大肠菌群测定为例,从教学内容的分析、教学思路的设计、教学过程等方面有机的融入现代信息化教学手段,激发学生的学习兴趣,充分发挥学
To recognize the geographical characteristics of the landslide areas will be helpful for the watershedmanagement in the reservoir watershed. According to the q
大学生是国家的未来,综合素质高低决定国家和民族的希望。戏曲历史悠久,博大精深,融文学、诗歌、音乐、舞蹈、美术、武术等多种艺术于一体,既具有丰富的文化内涵,又具有生动
峨.0050中共辽宁省委党中共辽宁省委党中共辽宁省委党中共辽宁省委党中共辽宁省委党中共辽宁省委党中共辽宁省委党中共辽宁省委党中共辽宁省委党秀丽的本溪关门山水库 Eme
随着社会经济的发展,信息化技术的应用逐渐普及,中职生知识的学习、信息的获取更是广泛。服装人才的培养模式需要更符合时代的发展。文章通过分析传统《服装制作工艺》课程教
1994年10月20日至21日,省政府在辉县市召开了全省水利工作会议。这次全省水利工作会议,主要是传达贯彻全国水利工作会议精神,学习江泽民总书记、李鹏总理等党和国家领导同志
0 引言  大肠癌的浸润转移是患者致死的主要原因 ,在其转移的每一步都涉及多个分子的相互作用以及不同基因在DNA或RNA水平上的一过性或永久变化。因此 ,加强对其分子基础和作用
本文通过对闸基渗透变形各主要原因的分析!描述了水闸渗透变形的发展过程,旨在找出经验与教训,也为其它管理部门提供参考材料。 Based on the analysis of the main causes
The formation process of the Dianqiangui basin, a special basin, occurred after the Caledonian orogeny, in the south of Guizhou, the west of Guangxi and the
省建委于95年3月3日在福州召开了新型防水材料及UPVC水管推广应用协调会。参加会议的有全省各池市建委(建工局)负责同志、省L小VC管推广应用协作组成员和防水材料及UPVC管有关