矿床地质2018，Vol.37Issue(1)：105-115,11.DOI:10.16111/j.0258-7106.2018.01.008
西天山卡特巴阿苏金铜矿区成矿元素分布及其勘查意义
Element distribution of Katebasu gold-copper deposit in West Tianshan Mountains and its exploration significance
摘要
Abstract
The Katebasu large-sized gold-copper deposit was discovered recently in West Tianshan Mountains.Its reserves are expected to further expand,and the follow-up exploration urgently needs clear direction.An analysis of copper grade statistics from 108 drill holes of chief ore block shows that gold and copper mineralization is controlled by the fracture.From west to east along the fracture,ore-forming elements in the plane and the vertical profile show variation of Cu-Au→Au-Cu→Au (Cu)→Au,which indicates that ore-forming fluid migrated from southwest to northeast,and the center of mineralization may be located between No.63 to No.47 exploration line.Along the exploration line profile,ore-forming elements show upward variation of Au-Cu→Au(Cu)→Au,suggesting that ore-forming fluids were derived from the depth.According to the discovery of the diorite intrusion related to the mineralization along No.63～ No.47 exploration line of the deposit and large-scale geochemical exploration measurements,it is held that the ore deposit shows northeastward variation of W-Cu-Au→Au-Cu-Bi-Mo→ Au(Cu)-Pb-Zn→Au-Ag in element distribution.The authors thus consider that metallogenic thermal center may be between No.63 and No.47 exploration line,that ore-forming fluids were transported from southwest to northeast along the fault,and that follow-up geological exploration should be focused on the depth between No.63 and No.47 exploration line.关键词
地球化学/元素分布/勘查方向/大型金铜矿/卡特巴阿苏/西天山Key words
geochemistry/element distributions/exploration orientation/large-sized Au-Cu deposit/Katbasu/West Tianshan Mountains分类
天文与地球科学引用本文复制引用
邢令,薛春纪,藏梅,杨维忠,赵晓波,宋安强,林泽华,张祺,冯博..西天山卡特巴阿苏金铜矿区成矿元素分布及其勘查意义[J].矿床地质,2018,37(1):105-115,11.基金项目
本文得到国家自然科学基金(编号:U1303292)、国家科技支撑计划(编号:2011BAB06B02)、中国地质调查局发展研究中心基础公益类项目-新疆西天山那拉提一带铜金多金属矿整装勘查区矿产调查与找矿预测项目资助(编号:0747-1661SITCN131-36)和中国地质调查局工作项目(编号:1212011085069)资助 （编号:U1303292）
