扬子陆块西南缘地球物理(化学)关于金矿等区域成矿规律探讨
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摘要
扬子陆块西南边界,由北西向金沙江-红河、北东向木里(川)-丽江两条深断裂所围限,构成向西突出的弧形,是我国重要金矿等矿产的成矿带,云南的大中型金矿、铂钯矿集中分布在陆块西南缘.作者通过地球物理(化学)编图和多年综合研究对区域成矿规律提出了几点新认识.金矿、铂钯矿严格受区域构造控制,沿边界深断裂分布有老王寨、金厂剪切带型金矿、北衙富碱斑岩型金矿、大坪石英脉型金矿等;与超基性岩有关的金宝山、荒草坝等铂钯矿;由边界向内侧有与晚古生代峨眉山玄武岩有关的铜矿、中生代砂岩铜矿;攀西裂谷及其南延部位有著名的攀枝花钒钛磁铁矿(川)、大红山铜铁矿、热水塘、安益等铂钯矿;滇中铁铜矿等.区域成矿分布的地球物理(化学)特征明显.
The southwest Border of Yangtze block,where is surrounded by the Jinsha River-the Red River deep fault and Muli(in Sichuan)-Lijiang deep fault,which bearing is Northwest and Northeast respectively,is one of Chinese important metallogenic belts,it is an arc island prominent towards west.Many large and medium-sized gold ore,platinum palladium ore in Yunnan are lied in the belt.Here is a few new point that is based on geophysical and chemical mapping and many comprehensive study on the regional metallogenetic regularity.Gold,platinum and palladium ore deposit is controlled by regional geological formation strictly.There are some deposits along the border with deep fault,such as Laowang village,Jinchang shear zone type gold deposit,Beiya rich alkali porphyry type gold deposit,Daping quartz vein type gold deposit,Jinbaoshan and Huangcaoba platinum and palladium deposits related to ultrabasic rock.From the border to the inside,There are other deposits,such as copper ore related to Neopaleozoic Mount Emei basalt,Mesozoic sandstone style copper deposit,and there are another deposits in Sichuan Panxi rift valley and its south extension part,such as famous Panzhihua vanadium and titanium magnetite deposit,Dahongshan copper deposit,Reshuitang and Anyi platinum and palladium deposit,iron and copper deposit in central yunnan.The geophysical and chemical feature of regional mineralization distribution is very apparent.
The southwest Border of Yangtze block,where is surrounded by the Jinsha River-the Red River deep fault and Muli(in Sichuan)-Lijiang deep fault,which bearing is Northwest and Northeast respectively,is one of Chinese important metallogenic belts,it is an arc island prominent towards west.Many large and medium-sized gold ore,platinum palladium ore in Yunnan are lied in the belt.Here is a few new point that is based on geophysical and chemical mapping and many comprehensive study on the regional metallogenetic regularity.Gold,platinum and palladium ore deposit is controlled by regional geological formation strictly.There are some deposits along the border with deep fault,such as Laowang village,Jinchang shear zone type gold deposit,Beiya rich alkali porphyry type gold deposit,Daping quartz vein type gold deposit,Jinbaoshan and Huangcaoba platinum and palladium deposits related to ultrabasic rock.From the border to the inside,There are other deposits,such as copper ore related to Neopaleozoic Mount Emei basalt,Mesozoic sandstone style copper deposit,and there are another deposits in Sichuan Panxi rift valley and its south extension part,such as famous Panzhihua vanadium and titanium magnetite deposit,Dahongshan copper deposit,Reshuitang and Anyi platinum and palladium deposit,iron and copper deposit in central yunnan.The geophysical and chemical feature of regional mineralization distribution is very apparent.
引文
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[5]李丽辉,王宝禄.云南省物化探成果编图及优势、重要矿产资源勘查选区研究报告[R].云南省地调局,2008.
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[7]云南省地矿局物化探队.云南省区域物化探资料综合研究报告[R].1990.
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