CAJ | 학술논문

东山铅锌矿区是云南保山隆阳-龙陵铅锌矿整装勘查区重要区块之一，位于近 SN 向的怒江断裂、柯街-大山断裂及 NE 向的南汀河断裂和勐波罗河断裂及 NW 向的瓦窑河-云县断裂派生次级特提斯成矿域。对区域成矿地质背景、矿床地质特征、构造特征、岩浆岩活动、矿石的类型，矿石的结构构造及化学组分等进行详细地研究，进而提出铅锌矿床的成因机制。结果表明：(1)该矿区二叠系下统沙子坡组下段(P1 s 1)为矿区主要含矿地层，香山组地层(C1 x)在矿区北部的西邑矿区为含矿地层。(2)成矿可能与隐伏花岗岩有关，矿液来源于深部。推测东山炭质层以下存在类似西邑受地层及构造控制的喷流沉积型铅锌矿体。
동산연자광구시운남보산륭양-룡릉연자광정장감사구중요구괴지일，위우근 SN 향적노강단렬、가가-대산단렬급 NE 향적남정하단렬화맹파라하단렬급 NW 향적와요하-운현단렬파생차급특제사성광역。대구역성광지질배경、광상지질특정、구조특정、암장암활동、광석적류형，광석적결구구조급화학조분등진행상세지연구，진이제출연자광상적성인궤제。결과표명：(1)해광구이첩계하통사자파조하단(P1 s 1)위광구주요함광지층，향산조지층(C1 x)재광구북부적서읍광구위함광지층。(2)성광가능여은복화강암유관，광액래원우심부。추측동산탄질층이하존재유사서읍수지층급구조공제적분류침적형연자광체。
Dongshan Pb-Zn mining area is one of the key blocks in Longyang-Longling Pb-Zn integrated explo-ration area,and it locates at secondary Tethyan metallogenic domain which is derived from nearly SN tren-ding Nujiang fault,Kejie-Dashan fault and NE trending Nanting River fault and Mengboluo River fault and NW trending Wayao River-Yunxian fault.After detailed study of regional metallogenic settings,geological characteristics of the deposit,structural characteristics,magmatic activities,types of ores,the author pro-poses a formation mechanism of Pb-Zn deposits.The results indicate that:1)the lower segment of Lower Permian Shazipo Formation (P1 s 1 )in the mining area is the primary ore-bearing strata,and the strata of Xiangshan Formation (C1 x)in Xiyi mining area which locates at the north of the mining area is the ore-bear-ing strata;2)the mineralization is possibly related to concealed granite,and the ore fluid originates from the deep level.It is supposed that sedimentation-exhalation type Pb-Zn ore-bodies which is controlled by strata and structure exist below Dongshan carbon-bearing layer.