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湖南省南部地区,岩浆活动频繁,铅锌、钨锡等矿产丰富。前人将该区与花岗岩类有关的铅锌矿床,如水口山、黄沙坪、东坡等统称为岩浆气成热液矿床。近年来,根据野外地质调查和室内研究,初步认为湘南存在两类不同成因的花岗岩类,形成与之有关的两个各具特征的铅锌矿床成矿系列。一、两类不同成因的花岗岩类湘南(北纬26°40′以南)花岗岩类岩石广布,已知有九十九个岩体(群),形成时代自古生代延续至中生代,具有多旋回、多期次的特征。其中,侏罗—白垩纪形成的两类不
Southern Hunan Province, magmatic activity is frequent, lead, zinc, tungsten and tin minerals rich. The predecessors will lead and granite-related lead-zinc deposits in the area, such as Shuikoushan, Huangshaping, Dongpo collectively referred to as magmatic gas into hydrothermal deposits. In recent years, based on the field geological survey and indoor studies, two types of granites with different genetic origins are preliminarily believed to exist in southern Hunan, forming two related lead-zinc mineralization series. I. Two Types of Granites with Different Generations The granites of the southern Hunan (south of latitude 26 ° 40 ’N) are widely distributed. Ninety-nine rock mass bodies (clusters) are known. The formation age has been extended from the Paleozoic to the Mesozoic, with multiple cycles, Multi-period features. Among them, Jurassic - Cretaceous formation of two types do not