中国地质
中國地質
중국지질
CHINESE GEOLOGY
2014年
5期
1650-1663
,共14页
张方方%王建平%王臣%刘冲昊%曹瑞荣%程建军%杨永荣%齐峰%王罗
張方方%王建平%王臣%劉遲昊%曹瑞榮%程建軍%楊永榮%齊峰%王囉
장방방%왕건평%왕신%류충호%조서영%정건군%양영영%제봉%왕라
微量元素%深部预测%双王金矿%陕西
微量元素%深部預測%雙王金礦%陝西
미량원소%심부예측%쌍왕금광%협서
trace elements%deep prediction%Shuangwang gold deposit%Shaanxi
提凤太矿集区是秦岭重要的铅锌金多金属成矿区之一,双王金矿是该成矿区中典型的角砾岩型金矿床。本文采用格里戈良提出的原生晕分带指数法,详细研究了双王金矿床KT9矿体和KT8矿体中ZK18-5、ZK30-1和ZK40-53个坑内钻孔的原生晕轴(垂)向分带特征,通过各钻孔中原生晕分带指数垂向变化规律、微量元素衬值及地球化学参数分析进行深部矿化预测。结果显示,双王金矿床原生晕轴(垂)向分带序列呈明显的反带现象, ZK18-5中在标高950 m附近矿化程度最好,矿体向深部逐渐尖灭;ZK30-1在标高980 m附近矿化程度最好,其深部预测有串珠状矿体存在,深部矿化前景较好;ZK40-5在标高850 m附近矿化程度最好,预测深部矿体仍有较大规模的延伸,深部矿化前景较好。
提鳳太礦集區是秦嶺重要的鉛鋅金多金屬成礦區之一,雙王金礦是該成礦區中典型的角礫巖型金礦床。本文採用格裏戈良提齣的原生暈分帶指數法,詳細研究瞭雙王金礦床KT9礦體和KT8礦體中ZK18-5、ZK30-1和ZK40-53箇坑內鑽孔的原生暈軸(垂)嚮分帶特徵,通過各鑽孔中原生暈分帶指數垂嚮變化規律、微量元素襯值及地毬化學參數分析進行深部礦化預測。結果顯示,雙王金礦床原生暈軸(垂)嚮分帶序列呈明顯的反帶現象, ZK18-5中在標高950 m附近礦化程度最好,礦體嚮深部逐漸尖滅;ZK30-1在標高980 m附近礦化程度最好,其深部預測有串珠狀礦體存在,深部礦化前景較好;ZK40-5在標高850 m附近礦化程度最好,預測深部礦體仍有較大規模的延伸,深部礦化前景較好。
제봉태광집구시진령중요적연자금다금속성광구지일,쌍왕금광시해성광구중전형적각력암형금광상。본문채용격리과량제출적원생훈분대지수법,상세연구료쌍왕금광상KT9광체화KT8광체중ZK18-5、ZK30-1화ZK40-53개갱내찬공적원생훈축(수)향분대특정,통과각찬공중원생훈분대지수수향변화규률、미량원소츤치급지구화학삼수분석진행심부광화예측。결과현시,쌍왕금광상원생훈축(수)향분대서렬정명현적반대현상, ZK18-5중재표고950 m부근광화정도최호,광체향심부축점첨멸;ZK30-1재표고980 m부근광화정도최호,기심부예측유천주상광체존재,심부광화전경교호;ZK40-5재표고850 m부근광화정도최호,예측심부광체잉유교대규모적연신,심부광화전경교호。
The Fengtai ore concentration area is an important Pb-Zn-Au metallogenic area in the Qinling Mountains, and the Shuangwang gold deposit is a representative large-sized deposit of auriferous albite breccias type in this area. Based on Gregorian’s zoning index method, the authors studied the vertical zoning characteristics of primary halos at the depth of drill holes ZK18-5, ZK30-1, and ZK40-5 in orebodies KT9 and KT8. By discussing the vertical variation of the zoning rate of primary halos, the graphical method of 3-end-mumber diagram, and the vertical change rules of the geochemical parameter, the authors hold that the orebody indicated by ZK18-5 thins out gradually at the depth, with a higher degree of mineralization at the elevation of 950 m;bead-shaped orebodies may occur at the depth of ZK30-1, with a higher degree of mineralization at the elevation of 980 m;the ore body indicated by ZK40-5 with a higher degree of mineralization at the elevation of 850 m still extends to the depth without pinching out.