物探与化探
物探與化探
물탐여화탐
GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2014年
2期
284-288
,共5页
郝立波%冯朔伟%赵玉岩%陆继龙%赵禹
郝立波%馮朔偉%趙玉巖%陸繼龍%趙禹
학립파%풍삭위%조옥암%륙계룡%조우
地球化学勘查%三道湾子金矿%富碲型金矿%原生晕%轴向分带%找矿预测
地毬化學勘查%三道灣子金礦%富碲型金礦%原生暈%軸嚮分帶%找礦預測
지구화학감사%삼도만자금광%부제형금광%원생훈%축향분대%조광예측
geochemical exploration%Sandaowanzi gold deposit%tellurium-rich-type gold deposit%primary halo%axial zonal sequence%prospecting prediction
三道湾子金矿位于大兴安岭燕山期成矿带东南部,属于典型的富碲贫硫石英脉型金矿。以此为例,研究了该类矿床矿床原生晕的分布特征,并采用格里戈良分带指数的改进方法计算了原生晕轴向分带序列和分带指数,目的是揭示该类矿床的勘查地球化学特征,并为该矿区进一步找矿指明方向。研究结果表明,原生晕轴向分带序列为:Mo-Sb-Pb-As-Bi-W-Zn-Ag-Cu-Hg-Te-Au。[w(As)·w(Sb)]/[w(Au)·w(Zn)]、[w(Sb)·w(Mo)]/[w(Au)·w(Zn)]、[w(As)·w(Sb)·w(Mo)]/[w(Au)·w(Cu)·w(Zn)]等分带性指数指示主成矿元素Au、Ag在130中段下方异常形态尚未封闭,Ⅰ号矿体深部仍有找矿的潜力,矿石品位会有所降低。
三道灣子金礦位于大興安嶺燕山期成礦帶東南部,屬于典型的富碲貧硫石英脈型金礦。以此為例,研究瞭該類礦床礦床原生暈的分佈特徵,併採用格裏戈良分帶指數的改進方法計算瞭原生暈軸嚮分帶序列和分帶指數,目的是揭示該類礦床的勘查地毬化學特徵,併為該礦區進一步找礦指明方嚮。研究結果錶明,原生暈軸嚮分帶序列為:Mo-Sb-Pb-As-Bi-W-Zn-Ag-Cu-Hg-Te-Au。[w(As)·w(Sb)]/[w(Au)·w(Zn)]、[w(Sb)·w(Mo)]/[w(Au)·w(Zn)]、[w(As)·w(Sb)·w(Mo)]/[w(Au)·w(Cu)·w(Zn)]等分帶性指數指示主成礦元素Au、Ag在130中段下方異常形態尚未封閉,Ⅰ號礦體深部仍有找礦的潛力,礦石品位會有所降低。
삼도만자금광위우대흥안령연산기성광대동남부,속우전형적부제빈류석영맥형금광。이차위례,연구료해류광상광상원생훈적분포특정,병채용격리과량분대지수적개진방법계산료원생훈축향분대서렬화분대지수,목적시게시해류광상적감사지구화학특정,병위해광구진일보조광지명방향。연구결과표명,원생훈축향분대서렬위:Mo-Sb-Pb-As-Bi-W-Zn-Ag-Cu-Hg-Te-Au。[w(As)·w(Sb)]/[w(Au)·w(Zn)]、[w(Sb)·w(Mo)]/[w(Au)·w(Zn)]、[w(As)·w(Sb)·w(Mo)]/[w(Au)·w(Cu)·w(Zn)]등분대성지수지시주성광원소Au、Ag재130중단하방이상형태상미봉폐,Ⅰ호광체심부잉유조광적잠력,광석품위회유소강저。
The Sandaowanzi gold deposit is located in the southeast of the Yanshannian Da Hinggan Mountains metallogenic belt. The a-nomaly distribution of primary halos and the characteristic distribution of elements were studied in this paper. Based on the data calcu-lated by the improved method of Gregorian's zoning index, the zonal sequence of the primary halo is Mo-Sb-Pb-As-Bi-W-Zn-Ag-Cu-Hg-Te-Au. The zonal index comprising such associations as As·Sb/Au·Zn, Sb·Mo/Au·Zn, As·Sb·Mo/Au·Cu·Zn was used for the prediction of the deep ore bodies, which provides the basis for further prospecting in this mining area.