摘要
本文在区域地质、水系沉积物测量、土壤测量和高精度磁测等方面对央弄地区的铜找矿前景进行了初步分析。利用1∶5万水系沉积物测量编制异常图,发现区内Mo、W、Sb、Cu、Au、Hg、Bi、Sn、Ag、Pb、Ba、As等元素有不同规模的明显异常,且Mo、W、Sb、Cu异常规模较大;通过土壤剖面可以看出Cu异常更显著。通过高精度磁测结果显示,化探异常位于磁异常附近;且已知铜矿化点位于磁异常附近。通过土壤测量数据研究元素间组合关系,推断区内可能的矿床类型为侵入岩型铜多金属矿,并对区内已发现的铜矿化点着重介绍。研究表明区内寻找侵入岩型铜多金属矿有较好的找矿前景。
This paper presents a preliminary study of copper prospect of in the Yangnong area,Xaitongmoin county,Tibet.Our work is based on regional geology,surveys of stream sediments and soil and high-precision magnetic measurements.The elemental anomalies have been mapped using 1∶50 000 measurements of stream sediments.It is found that there are remarkable element anomalies of various scales,such as Mo,W,Sb,Cu,Au,Hg and Bi,especially those of Mo,W,Sb and Cu are relatively large.The soil profile in the Yangnong area shows that anomalies of Cu are more abundant.The magnetic survey indicates that both the anomalies of geochemical survey and known copper mineralization sites are nearby the magnetic anomalies.By the combination relationship between elements from soil survey data,it is inferred that the copper deposits in the Yangnong area may be of intruded rock type associated with polymetallic ore deposits.It follows that the study area is expected to be a prospective area for the copper polymetallic ore deposits related with intrusive rocks in the Yangnong area.
出处
《地质与勘探》
CAS
CSCD
北大核心
2010年第6期1001-1006,共6页
Geology and Exploration
基金
中国地质调查局<西藏普迟亚地区矿产远景调查>(编号:矿调[2004-1-3)项目资助
关键词
谢通门
央弄
铜多金属矿
找矿前景
Xaitongmoin county
Yangnong
copper polymetallic ore deposit
ore-searching prospect
