山东龙口大磨曲家金矿床302脉深部成矿预测  

Deep metallogenic prognosis for vein 302 in Damoqujia gold deposit of Longkou,Shandong

作　　者：韦烈民[1] 秦丹鹤[1] 常亮[1] 张雪冰[1] 王可勇[1] 

机构地区：[1]吉林大学地球科学学院,长春130061

出　　处：《世界地质》2013年第4期725-732,共8页World Geology

基　　金：山东金泰金矿区成矿规律研究及深部矿体定量预测(JTDK2011-8)

摘　　要：大磨曲家金矿床位于玲珑金矿田北端。区内共产出大小金矿脉23条,其中302脉为主要的开采矿脉,含3个工业矿体。矿体主要产于主断裂面下盘,由黄铁绢英岩化碎裂岩组成,呈似层状或透镜体状。通过对302脉矿体厚度、金品位及矿脉米克吨值等分析,矿脉在深部自南向北有较好的金矿化显示,是深部隐伏矿体的找矿标志。矿体厚度在垂向变化上显示由74线到98线逐渐降低。根据这些找矿标志,在302脉深部预测5处找矿靶区。Damoqujia gold deposit is located in the northern Linglong gold field, and 23 go/d-bearing quartz veins have been found in the deposit. The vein 302 was the main vein of mining, in which 3 industrial ore bodies have been selected. The ore body mainly originated in the lower plate of the main fractured surface, consisted of beresitization cataelasite with bedded-like or lenticular shape. The analysis of thickness, gold grade and m ~ g/t of ore body in the vein 302 indicates that the veins were well gold mineralized in the deep from south to north, which can be as the indicator for ore-searching of concealed ore body deeply. The ore body thickness gradually decreased from profile 74 to 98. Based on these ore-searching indicators, the authors defined 5 ore body targets in the deep of vein 302.

关 键 词：大磨曲家 金矿床 深部预测 山东龙口 

分 类 号：P618.51[天文地球—矿床学] P612[天文地球—地质学]