矿产与地质
礦產與地質
광산여지질
MINERAL RESOURCES AND GEOLOGY
2014年
2期
169-174
,共6页
魏军%王恩德%杨德江%祁建誉
魏軍%王恩德%楊德江%祁建譽
위군%왕은덕%양덕강%기건예
银铅锌矿%地质特征%找矿方向%四棵杨树%辽宁
銀鉛鋅礦%地質特徵%找礦方嚮%四棵楊樹%遼寧
은연자광%지질특정%조광방향%사과양수%료녕
Ag-Pb-Zn deposit%geological characteristic%prospecting direction%Sikeyangshu%Liaoning
四棵杨树银铅锌矿位于青城子铅锌金银矿田东部,与高家堡子银矿、小佟家堡子金矿、杨树金矿、湾地沟金矿处于同一金银铅锌矿带,该矿带赋存于辽河群盖县组黑云母片岩与大石桥组大理岩接触部附近。在矿区发现的8条隐伏似层状银铅锌矿体,赋矿岩石为大理岩、黑云变粒岩,围岩蚀变主要为硅化、碳酸盐化、黄铁矿化、石墨化。矿床成因属于沉积-变质-热液改造型矿床,是典型的层控型隐伏矿床。经对其中4条矿体进行工程验证,初步估算,探获(333+3341)资源量金属银99804kg,(铅+锌)50900 t。对控矿因素及找矿预测提出了新认识,指出了在矿区北部及深部仍有较大的找矿潜力。
四棵楊樹銀鉛鋅礦位于青城子鉛鋅金銀礦田東部,與高傢堡子銀礦、小佟傢堡子金礦、楊樹金礦、灣地溝金礦處于同一金銀鉛鋅礦帶,該礦帶賦存于遼河群蓋縣組黑雲母片巖與大石橋組大理巖接觸部附近。在礦區髮現的8條隱伏似層狀銀鉛鋅礦體,賦礦巖石為大理巖、黑雲變粒巖,圍巖蝕變主要為硅化、碳痠鹽化、黃鐵礦化、石墨化。礦床成因屬于沉積-變質-熱液改造型礦床,是典型的層控型隱伏礦床。經對其中4條礦體進行工程驗證,初步估算,探穫(333+3341)資源量金屬銀99804kg,(鉛+鋅)50900 t。對控礦因素及找礦預測提齣瞭新認識,指齣瞭在礦區北部及深部仍有較大的找礦潛力。
사과양수은연자광위우청성자연자금은광전동부,여고가보자은광、소동가보자금광、양수금광、만지구금광처우동일금은연자광대,해광대부존우료하군개현조흑운모편암여대석교조대리암접촉부부근。재광구발현적8조은복사층상은연자광체,부광암석위대리암、흑운변립암,위암식변주요위규화、탄산염화、황철광화、석묵화。광상성인속우침적-변질-열액개조형광상,시전형적층공형은복광상。경대기중4조광체진행공정험증,초보고산,탐획(333+3341)자원량금속은99804kg,(연+자)50900 t。대공광인소급조광예측제출료신인식,지출료재광구북부급심부잉유교대적조광잠력。
Sikeyangshu Ag-Pb-Zn deposit locates at the east of Qingchengzi Pb-Zn-Au-Ag ore field,and it shares the same Au-Ag-Pb-Zn ore belt with Gaojiapuzi Ag deposit,Xiaotongjiapuzi Au deposit,Yangshu Au deposit and Wandigou Au deposit.This ore belt occurs adjacent to the contact part between biotite schist of Gaixian formation of Liaohe group and marble of Dashiqiao formation.Eight concealed Ag-Pb-Zn ore bodies of stratoid structure were found in the mining area.The ore host rocks are marble and biotite granulite and the primary wall-rock alteration includes silicification,carbonatization,pyritization and graphitization.The genesis of the deposit is sedimentary-metamorphic-hydrothermal reformation type deposit and it is a typical strata-bound type concealed deposit.According to engineering verification and preliminary estimates of the four ore bodies,(333+334 1 )resource amount explored was 99804kg of metallic silver and 50900 tons of lead and zinc.In this article,a new understanding of ore-controlling factors and prospecting prediction is pro-posed,and it is suggested that northern part and deep part of the mining area have great exploration potential.