安徽地质
安徽地質
안휘지질
GEOLOGY OF ANHUI
2013年
3期
200-204
,共5页
池州地区%矿床类型%成矿系列%成矿模式%找矿标志
池州地區%礦床類型%成礦繫列%成礦模式%找礦標誌
지주지구%광상류형%성광계렬%성광모식%조광표지
ore deposit type%metallogenic series%metallogenic model%prospecting indicator%Chizhou
安徽省池州地区矿床类型主要有矽卡岩型、斑岩型、热液型、风化淋滤型、沉积叠改型等。矽卡岩型是本区主要的矿床类型，根据其成矿特点可进一步分为：层控式、复合式、接触式。矿床（体）主要赋存在S-O间剥离面奥陶系汤头组、泥盆系顶部层位、泥盆～石炭系界面、石炭系黄龙-船山组、二叠-三叠系碳酸盐地层。燕山早期中酸性岩浆岩、层间滑脱构造、有利成矿的碳酸盐地层、不同方向不同性质的构造结合部位是本区重要的成矿条件。本文在总结前人成果资料的基础上，建立了本区区域成矿模式，将矿床成矿系列主要划分为三个：①与燕山早期钙碱性幔壳同熔型第一次侵入体有关的以W、Mo为主的成矿系列；②与燕山早期钙碱性幔壳同熔型闪长岩类岩体有关的Cu、Fe、S、Pb、Zn、W、Mo、（Au、Ag）成矿系列；③与燕山晚期陆壳改造型富硅富碱花岗岩有关的Ag、Cu、Fe、Pb、Zn多金属成矿系列。
安徽省池州地區礦床類型主要有矽卡巖型、斑巖型、熱液型、風化淋濾型、沉積疊改型等。矽卡巖型是本區主要的礦床類型，根據其成礦特點可進一步分為：層控式、複閤式、接觸式。礦床（體）主要賦存在S-O間剝離麵奧陶繫湯頭組、泥盆繫頂部層位、泥盆～石炭繫界麵、石炭繫黃龍-船山組、二疊-三疊繫碳痠鹽地層。燕山早期中痠性巖漿巖、層間滑脫構造、有利成礦的碳痠鹽地層、不同方嚮不同性質的構造結閤部位是本區重要的成礦條件。本文在總結前人成果資料的基礎上，建立瞭本區區域成礦模式，將礦床成礦繫列主要劃分為三箇：①與燕山早期鈣堿性幔殼同鎔型第一次侵入體有關的以W、Mo為主的成礦繫列；②與燕山早期鈣堿性幔殼同鎔型閃長巖類巖體有關的Cu、Fe、S、Pb、Zn、W、Mo、（Au、Ag）成礦繫列；③與燕山晚期陸殼改造型富硅富堿花崗巖有關的Ag、Cu、Fe、Pb、Zn多金屬成礦繫列。
안휘성지주지구광상류형주요유석잡암형、반암형、열액형、풍화림려형、침적첩개형등。석잡암형시본구주요적광상류형，근거기성광특점가진일보분위：층공식、복합식、접촉식。광상（체）주요부존재S-O간박리면오도계탕두조、니분계정부층위、니분～석탄계계면、석탄계황룡-선산조、이첩-삼첩계탄산염지층。연산조기중산성암장암、층간활탈구조、유리성광적탄산염지층、불동방향불동성질적구조결합부위시본구중요적성광조건。본문재총결전인성과자료적기출상，건립료본구구역성광모식，장광상성광계렬주요화분위삼개：①여연산조기개감성만각동용형제일차침입체유관적이W、Mo위주적성광계렬；②여연산조기개감성만각동용형섬장암류암체유관적Cu、Fe、S、Pb、Zn、W、Mo、（Au、Ag）성광계렬；③여연산만기륙각개조형부규부감화강암유관적Ag、Cu、Fe、Pb、Zn다금속성광계렬。
Major mineral deposits in the Chizhou area of Anhui Province are of skarn,hydrothermal,weathering and leaching,depositional superimposition and reworking types. Dominating in the area,the skarn type is further divided in-to the strata-bound,mixed and contact subs according to its mineralization characteristics. Ore bodies are mostly hosted in the Tangtou Formation of Ordovician about the S-O stripping surface,the upper horizon of Devonian,the Devonian-Carbonaceous boundary,the Huanglong-Chuanshan Formation of Carbonaceous and carbonate strata of Permian and Tri-assic. Important mineralization conditions in the area include the early Yanshanian intermediate-acid magmatic rock,in-terlayer decollement,favorable carbonate stratum,the binding place of structures of different direction and different na-ture. On the basis of a summary of previous work results of other geologists,this paper established regional metallogen-ic models for this area classifying mineral deposits into three major series: (1) W,and Mo-dominant series related to early Yanshanian calc-alkaline mantle-crust syntectic first intrusive;(2) Cu,Fe,S,Pb,Zn,W,Mo,(Au,Ag)series having to do with early Yanshanian mantle-crust syntectic diorite intrusion;(3) Ag,Cu,Fe,Pb,Zn polymetallic series con-cerned with late Yanshanian continental crust reworking type Si-and alkali-rich granite.
