皖南天井山金矿床地质-地球化学特征及找矿前景  

Geochemical Characteristics and Prospecting in the Tianjingshan Gold Deposit,South Anhui

作　　者：段留安[1,2] 杨晓勇[1] 孙卫东[1,3] 方世明[4] 余良范[5] 范增平 

机构地区：[1]中国科学技术大学地球与空间科学学院矿产资源研究室,合肥230026 [2]武警黄金第七支队,山东烟台264004 [3]中国科学院广州地球化学研究所,广州510640 [4]中国地质大学资源学院,武汉430074 [5]安徽省国土资源厅公益性地质调查管理中心,合肥230001

出　　处：《地质学报》2011年第6期965-978,共14页Acta Geologica Sinica

基　　金：中国科学院知识创新工程项目(编号KZCX1-YW-15-3;KZCX2-YW-QN509);国家自然科学基金重点项目(编号90814008)共同资助成果

摘　　要：皖南地区山高林密,地质工作条件差,基础地质工作相对还很薄弱,金矿的找寻工作一直没有取得大的突破。本文选取皖南休宁县天井山金矿为切入点,对该矿床地质、地球化学特征进行了分析,基本理清了本区与金成矿相关的各种因素,对矿床成因进行了剖析,并对其找矿前景作了探讨。系统统计分析区内地层、岩浆岩、矿石的主微量元素、稀土元素特征,讨论了地层、岩浆岩和构造与金成矿的关系,对比了位于同一条成矿带上的江西金山超大型金矿床一些地质地球化学特征,结合笔者前期在天井山野外调研及小贺矿段布设工程见矿情况,认为本区金矿具有较好的成矿远景和广阔的找矿空间。The geological survey in southern Anhui has been very difficult due to high mountain and highly dense forests.Geological exploration is relatively poor and there has been no great progress achieved in gold prospecting.This research,focusing on the Tianjingshan gold deposit in south Anhui,studied the geological settings and geochemistry,analyzed various factors related to gold mineralization,and finally discussed the exploration prospect.Main and trace elements and REEs of the strata,magmatic rocks and ores,and relationship between strata,magmatic rocks and structures and gold mineralization have been systematically discussed in this study.In addition,geochemical features of the Jiangxi large-scale gold deposits on the same metallogenic belt were contrasted.Our field investigation in the Tianjinshan,combined with the deployed engineering at the Xiaohe ore section,suggests that this area is of good metallogenic prospect and potential for ore finding.

关 键 词：矿床成因 地质地球化学 金矿找矿 天井山金矿床 皖南 

分 类 号：P618.51[天文地球—矿床学]