皖东地区毛山金矿床中石英热发光与黄铁矿热电性标型研究

皖东地区为中国新的金矿资源远景区 ,金矿点分布广泛 ,但开发程度较低。毛山金矿属于中小规模的典型金矿山 ,矿体具有向南侧伏的趋势。烟灰色含矿石英的热发光曲线具有多峰特征 ,并且峰强大、峰位低 ;而乳白色不含矿石英的热发光曲线峰位较高 ,峰强较小。含矿黄铁矿的热电导型以 N型居多 ,热电系数 α绝对值的平均值较大。石英热发光标型和黄铁矿热电性标型均揭示了金矿化具有向矿区南部深部增强的趋势。研究成果不仅为毛山金矿指明了找矿方向 ,还有助于利用石英和黄铁矿标型性特征对皖东地区众多金矿点的矿化远景作出科学评价。

TYPOMORPHISMS OF THERMOLUMINESCENCE OF QUARTZ AND THERMOELECTRICITY OF PYRITE FROM MAOSHAN GOLD DEPOSIT IN WANDONG REGION

Maoshan gold deposit with small middle scale mineralization is situated in Wandong region where gold ore spots distribute widely and therefore it becomes new prospective area of gold resource. The typomorphism of curve of thermoluminescence of sooty ore bearing quartz has more peaks and increases strength and decreases position of the peaks, while that of opaline barren quartz decreases strength and increases position of the peaks. The typomorphism of thermoelectricity of ore bearing pyrite has more N type and has bigger absolute value of the thermoelectrical coefficient α , while that of barren pyrite is contrary to one. It is thought that the deep part of south in the mine has stronger gold mineralization and is prosperous for gold prospecting by studying of the typomorphisms of quartz and pyrite mentioned above. It is helpful not only for prospecting in Maoshan gold mine but also for evaluating gold spots in Wandong region.