[1]胡希有.宁陕县金盆沟地区地球化学特征及找矿预测[J].西安科技大学学报,2015,(05):630-637.[doi:10.13800/j.cnki.xakjdxxb.2015.0517]
 HU Xi-you.Geochemical characteristics and prospecting target area forecast of Jinpengou in Ningshan county[J].Journal of Xi'an University of Science and Technology,2015,(05):630-637.[doi:10.13800/j.cnki.xakjdxxb.2015.0517]
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宁陕县金盆沟地区地球化学特征及找矿预测(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年05期
页码:
630-637
栏目:
出版日期:
2015-10-08

文章信息/Info

Title:
Geochemical characteristics and prospecting target area forecast of Jinpengou in Ningshan county
作者:
胡希有
陕西省核工业地质调查院,陕西 西安 710054
Author(s):
HU Xi-you
Institute of Nuclear Industry Geological Survey of Shaanxi Province,Xi'an 710054,China
关键词:
地球化学特征 综合异常 找矿远景 宁陕县金盆沟
Keywords:
geochemical characteristics comprehensive anomaly prospecting Ningshan Jinpengou
分类号:
TD 863
DOI:
10.13800/j.cnki.xakjdxxb.2015.0517
文献标志码:
A
摘要:
宁陕县金盆沟位于巴山弧构造由东西向向南北向的转折部位,断裂(韧性剪切带)、褶皱构造极为复杂,岩石变形强烈。出露地层以下志留统梅子垭组为主,这套地层是安康北部汉阴-石泉金多金属成矿带上金矿产出的有利层位。通过对1:2.5万土壤化探测量资料的数据处理和异常圈定,共圈定12个指示元素异常391个,综合异常11个,Ag,Zn,Au,Mo,V等元素显示具高强度和具一定规模的地球化学异常。从指示元素分布特征来看,Au元素在梅子垭组云母石英片岩段最高; 对区内土壤采样数据进行R型聚类分析得出Au-Ag-Mo-Zn组合异常是区内寻找金矿的有利组合; 通过与邻区具相似地质地球化学特征的类似矿床进行比较得出了区内综合找矿标志。区内11个综合异常通过分类与评价认为Hy-3甲级综合异常组合复杂,水平分带明显,是区内唯一具有寻找金矿远景的矿致异常。
Abstract:
Jinpengou of Ningshan County is located in the turning zone,whose trending is from E-W to N-S,and as a part of the Bashan arc tectonic element.It is featured by the complex geological structures,including faulting(ductile shear zone)and folding structures,and strongly deformed rocks.The dominated stratigraphy of outcrops is named with Meiziya Formation,which is just the most beneficial horizon for gold polymetallic metallogenic belt in the north of Ankang City.There are 391 abnormal zones of 12 indexed elements and 11 integrated abnormal zones are revealed using 1:25 000 soil geochemical survey.The elements of Ag,Zn,Au,Mo,and V are showing high strength,and are distributing in a certain way.The characteristics of indexed elements distribution show that the element of Au is most rich in quartz schist of Meiziya Formation.And the combination of Au-Ag-Mo-Zn is the most prospective for hunting gold mine in this area,which is inferred by R cluster analysis on soil samples data processing.Furthermore,the comprehensive prospecting indexes for mine hunting are retrieved by compared with the similar geological and geochemical backgrounds of mineral deposits.Hy-3 grade comprehensive abnormal combination is complex through this study on the 11 comprehensive anomalies and is the only abnormity for Au mine hunting in this area.

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备注/Memo

备注/Memo:
基金项目:陕西省地质勘查基金项目(61201203130) 通讯作者:胡希有(1982-),男,陕西商洛人,工程师,E-mail:15187139@qq.com
更新日期/Last Update: 2015-09-15