河南科学
河南科學
하남과학
HENAN SCIENCE
2013年
4期
500-504
,共5页
王海波%陈爱兵%何幸儒%董光泽%谢小明
王海波%陳愛兵%何倖儒%董光澤%謝小明
왕해파%진애병%하행유%동광택%사소명
成矿期次%成矿阶段%锌铜矿床%拉么%大厂矿田
成礦期次%成礦階段%鋅銅礦床%拉麽%大廠礦田
성광기차%성광계단%자동광상%랍요%대엄광전
metallogenic period%metallogenic stages%zinc-copper deposit%lame%dachang orefield
拉么矿床位于大厂矿田中矿带笼箱盖岩体的南西侧,该矿床既存在矽卡岩型锌铜矿化,又存在中~低热液型钨-锑矿化.矽卡岩型锌铜矿化,根据产状特征可分为两组:似层状矿化、脉状矿化;同时可分为三种类型:缓倾斜似层状锌铜矿化,陡倾斜裂隙充填、交代细脉状矿化,以及陡倾斜大脉状矿化.通过坑下地质调研和室内光片鉴定,拉么锌铜矿矿区的成矿作用可划分为两个成矿期、5个成矿阶段:①矽卡岩型锌(铜)矿成矿期,包括早期硫化物阶段(铁铜矿阶段)、晚期硫化物阶段(铅锌矿阶段);②钨-锑成矿期,包括星散浸染状白钨矿矿化阶段、星散浸染状辉锑矿矿化阶段、脉状辉锑矿-方解石矿化阶段.
拉麽礦床位于大廠礦田中礦帶籠箱蓋巖體的南西側,該礦床既存在矽卡巖型鋅銅礦化,又存在中~低熱液型鎢-銻礦化.矽卡巖型鋅銅礦化,根據產狀特徵可分為兩組:似層狀礦化、脈狀礦化;同時可分為三種類型:緩傾斜似層狀鋅銅礦化,陡傾斜裂隙充填、交代細脈狀礦化,以及陡傾斜大脈狀礦化.通過坑下地質調研和室內光片鑒定,拉麽鋅銅礦礦區的成礦作用可劃分為兩箇成礦期、5箇成礦階段:①矽卡巖型鋅(銅)礦成礦期,包括早期硫化物階段(鐵銅礦階段)、晚期硫化物階段(鉛鋅礦階段);②鎢-銻成礦期,包括星散浸染狀白鎢礦礦化階段、星散浸染狀輝銻礦礦化階段、脈狀輝銻礦-方解石礦化階段.
랍요광상위우대엄광전중광대롱상개암체적남서측,해광상기존재석잡암형자동광화,우존재중~저열액형오-제광화.석잡암형자동광화,근거산상특정가분위량조:사층상광화、맥상광화;동시가분위삼충류형:완경사사층상자동광화,두경사렬극충전、교대세맥상광화,이급두경사대맥상광화.통과갱하지질조연화실내광편감정,랍요자동광광구적성광작용가화분위량개성광기、5개성광계단:①석잡암형자(동)광성광기,포괄조기류화물계단(철동광계단)、만기류화물계단(연자광계단);②오-제성광기,포괄성산침염상백오광광화계단、성산침염상휘제광광화계단、맥상휘제광-방해석광화계단.
@@@@Lame deposit is located in the southwestern side of the Dachang ore field the belt Longxianggai rock mass,the deposit both skarn-type zinc-copper mine,and there is a medium-low hydrothermal tungsten-antimony mineralization. Skarn-type zinc-copper mineralization can be divided into two groups according to the characteristics of occurrence:stratiform mineralization and vein mineralization,at the same time,can be divided into three types:gently inclined stratiform zinc copper mineralization,steeply dipping fissure filling and account of the fine stockwork mineralization,steeply inclined vein mineralization. Through the pit following geological research,and the indoor light chip identification,the mineralization of Lame zinc-copper mine is divided into two mineralization periods and the five stages of mineralization:①the skarn rock type zinc(copper) mineralization period,induding the early stages of sulphide(iron,copper stage),and the late stages of sulphide(pb-zn phase);②tungsten-antimony mineralization period,including the scattered disseminated scheelite mineralization stages,scattered disseminated stibnite mineralization stage and vein stibnite mineral-calcite mineralization stage.