科技广场
科技廣場
과기엄장
SCIENCE TECHNOLOGY PLAZA
2014年
6期
20-22
,共3页
东昆仑%铜%金矿化带%成矿地质条件
東昆崙%銅%金礦化帶%成礦地質條件
동곤륜%동%금광화대%성광지질조건
East Kunlun Mountain%Copper and Gold Mineralization%Metallogenic Geological Conditions
本文研究区大地构造位置位于东昆仑南缝合带北侧,布喀达坂峰-阿尼玛卿山华力西期铜、钴、金(锑)、煤、蛇纹岩Ⅲ级成矿带上,属秦祁昆地层区的东昆仑南坡分区。研究区出露的地层总体北部广布第四系,南西部分布古近系古新统-始新统沱沱河组地层,中西部以二叠系上统布青山群马尔争组为主;受昆南深大断裂的影响,区域内褶皱构造和断裂构造发育,构造以北西西向断裂为主;岩浆岩主要为华力西期晚期基性-超基性、中酸性侵入岩多分布于研究区中东部,多呈岩株、岩基、岩脉状产出。研究区内圈定MCu1-MCu6六条铜矿化带,MAu1、MAu2两条金矿化带,其中MCu2、MCu3铜矿化带和MAu1、MAu2金矿化带规模及品位较好。通过对已有地质信息与典型矿床对比分析成矿条件,确定找矿类型、找矿方向和找矿远景。
本文研究區大地構造位置位于東昆崙南縫閤帶北側,佈喀達坂峰-阿尼瑪卿山華力西期銅、鈷、金(銻)、煤、蛇紋巖Ⅲ級成礦帶上,屬秦祁昆地層區的東昆崙南坡分區。研究區齣露的地層總體北部廣佈第四繫,南西部分佈古近繫古新統-始新統沱沱河組地層,中西部以二疊繫上統佈青山群馬爾爭組為主;受昆南深大斷裂的影響,區域內褶皺構造和斷裂構造髮育,構造以北西西嚮斷裂為主;巖漿巖主要為華力西期晚期基性-超基性、中痠性侵入巖多分佈于研究區中東部,多呈巖株、巖基、巖脈狀產齣。研究區內圈定MCu1-MCu6六條銅礦化帶,MAu1、MAu2兩條金礦化帶,其中MCu2、MCu3銅礦化帶和MAu1、MAu2金礦化帶規模及品位較好。通過對已有地質信息與典型礦床對比分析成礦條件,確定找礦類型、找礦方嚮和找礦遠景。
본문연구구대지구조위치위우동곤륜남봉합대북측,포객체판봉-아니마경산화력서기동、고、금(제)、매、사문암Ⅲ급성광대상,속진기곤지층구적동곤륜남파분구。연구구출로적지층총체북부엄포제사계,남서부분포고근계고신통-시신통타타하조지층,중서부이이첩계상통포청산군마이쟁조위주;수곤남심대단렬적영향,구역내습추구조화단렬구조발육,구조이북서서향단렬위주;암장암주요위화력서기만기기성-초기성、중산성침입암다분포우연구구중동부,다정암주、암기、암맥상산출。연구구내권정MCu1-MCu6륙조동광화대,MAu1、MAu2량조금광화대,기중MCu2、MCu3동광화대화MAu1、MAu2금광화대규모급품위교호。통과대이유지질신식여전형광상대비분석성광조건,학정조광류형、조광방향화조광원경。
he study area is located in the north of tectonic suture zone of East Kunlun and in the metallogenic belt of copper, cobalt, gold (antimony), coal, ore gradeⅢin Buka Daban Peak-A'nyemaqen Variscan mountain which belongs to the southern slope of East Kunlun Mountain of Qinling-qilian-kunlun stratigraphic area. The north of the exposed formation in the study area wildly distributes in quaternary system. E1-2t is located in the south west part and p2m in the middle west part. Influenced by the deep facture in the south of the Kunlun Moun-tain, it is mainly the fold structure and the fracture development in this region and is north-west structure. Magmat-ic rock is mainly distributed in the late variscan basic-ultrabasic. Acidic intrusive rocks are mainly distributed in the middle-east part of the study area. It mainly presents as stock, bathylith and dyke. Six MCu1-MCu6 copper mineralization belts and two gold mineralization belts are settled in the study area. And, the scope and grade of MCu2, MCu3 copper mineralization belts are better. This paper analyzes the minerogenetic conditions based on the contrast between the previous geological information and typical ore deposit, and discovers ore types, ore di-rections and ore prospects.