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近年来,在华南加里东褶皱带西南隅,云开隆起西北缘的桂东南,长达百余公里的地带上,发现一系列与各类硫化物矿床共生的钨矿床.本文认为,矿床成因为早古生代喷气型层控白钨矿床. 发现及其地质依据在矿化带中段已知钨矿(化)点5个,自南而北为三丫甬、安垌、六苏、大岭和平塘;矿点长1.1～3公里,宽0.5～1.3公里,彼此相距约3～7公里.这类矿床(点)不同程度保留有原始沉积成矿的特征. 1.层位稳定矿床均赋存于厚达3000余米的海相细碎屑一泥质变质沉积岩,中夹厚0.5～22米的层状(似层状)基性火山岩,并含炭质及黄铁矿的岩系中.含矿部位属中上奥陶统(有人认为部分属下志留统).岩性可以安垌、大岭两矿区为代表(表1).矿体均产于与变质基性火山岩及碳酸盐岩(夕卡岩化)伴生的碎屑-泥质沉积岩系中.矿体呈层状、似层状或大透镜体,与围岩整合.矿层最
In recent years, a series of tungsten deposits symbiotic with various sulphide deposits have been found in the southeastern Guangxi southeast margin of the Caledonian fold belt in South China and southeastern Guangxi in the northwestern margin of the Yunkai uplift, and the authors believe that the genesis of the deposit is Early Paleozoic jet-type stratigraphic control scheelite deposit. Discovery and geological basis It is known that there are 5 tungsten mineralization sites in the middle of the mineralized zone, with 3 sites ranging from south to north to Anshan, Anshun, Liusu, Da Ling and Pingtang The ore deposits are 1.1 ~ 3 km in length and 0.5 ~ 1.3 km in width, about 3 ~ 7 km away from each other. Marine fine-grained metamorphic sedimentary rocks with a thickness of more than 3000 m, are layered (stratified) base volcanic rocks with a thickness of 0.5 to 22 m and contain carbonaceous and pyrite rocks. The ore body belongs to middle-upper Ordovician (some people think that some belong to Silurian) .The lithology can be represented by Anshuang and Da’ling two mines (Table 1) .The orebodies are all produced in combination with metamorphic basic volcanic rocks and carbonates Rock (skarnization) associated with the debris - muddy sedimentary rock system. The ore body is layered, layered or large lens body, integrated with the surrounding rock.