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[1]史光德,刘新会,张永文,等.镇旬盆地金矿地质特征及找矿方向[J].地球科学与环境学报,2005,27(03):10-14.
　SHI Guang-de,LIU Xin-hui,ZHANG Yong-wen,et al.Characteristics of gold deposits in Zhen’ an-Xunyang Basin and gold resources targeting[J].Journal of Earth Sciences and Environment,2005,27(03):10-14.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第27卷
期数:
2005年第03期
页码:
10-14
栏目:
出版日期:
2005-09-15

文章信息/Info

Title:
Characteristics of gold deposits in Zhen’ an-Xunyang Basin and gold resources targeting
作者:
史光德; 刘新会; 张永文; 刘爽; 张智义
武警黄金部队第五支队,陕西西安710100
Author(s):
SHI Guang-de; LIU Xin-hui; ZHANG Yong-wen; LIU Shuang ; ZHANG Zhi-yi
The Fifth Branch Party, The Gold Geological Party of CAPF, Xi’ an 710100, China
关键词:
金矿; 地质特征; 成矿条件; 镇安旬阳盆地; 陕西
Keywords:
gold deposits;  geological feature;  metallogenic condition;  Zhen’an-Xunyang Basin;  Shaanxi
分类号:
P618.51
DOI:
-
文献标志码:
A
摘要:
镇旬盆地金鸡岭向斜南北两翼是秦岭板块内重要的成金区域。区内金矿类型有三种:金龙山 细碎屑岩碳酸盐岩型、二台子钠长石角砾岩型、牛家沟石英脉蚀变岩型。主要载金矿物为黄铁矿、含 砷黄铁矿、黄铜矿、毒砂、石英、方解石等。金以自然金为主,次有含银自然金。本区含矿地层主要为中 泥盆统古道岭组(D2g)、上泥盆统南羊山组(D3n)、星红铺组(D3x)和下石碳统袁家沟组(C1y)。近东西 向的剪切破碎带直接控制矿体的分布。蚀变以黄铁矿化、黄铜矿化、毒砂矿化、汞锑矿化、硅化、方解石 化等为主。Au,As,Sb,Hg元素组合直接指示金矿床的存在。分析镇旬盆地金鸡岭复式向斜南北两翼 成矿条件,得出在北带金龙山-丘岭金矿带东延的西坡岭丁家山背斜带;中带的泗峡口二天门带;南 带的仁河口公馆回龙复背斜汞锑矿带;是成金的有利区域。
Abstract:
Both northern and southern flanks of the Jinjiling Syncline in the Zhen’an-Xunyang Basin belong to an important gold vei- ning belt. To date within the belt, three type gold deposits are recognized as the clastic-carbonate rock-hosted disseminated(Jinlong- shan), albite breccia(Ertaizi)and quartz vein-altered rocks(Niujiagou). The auriferous minerals mainly comprised pyrite, arsenic pyrite, chalcopyrite, arsenopyrite and calcite. Gold was dominated by the natural Au element and less frequently it also contained certain silver. Three Devonian formations, namely Middle Devonian Gudaoling(D2g), Upper Devonian Nanyangshan(D3n)and Xinghongpu(D3x), acted as the major hosting sequences of gold deposits in the study area,and some gold deposits were also hosted by the Yuanjiagou Formation(C1y)of Lower Carboniferous age. Nearly EW-orientated shearing zones controlled the distribution of ore bodies, and the main alteration was identified by pyritization, chalcopyritization, arsenopyritization, mercury and antimony min- eralization, silicification and calcitization. The Au, As, Sb and Hg association hence was indicative of gold deposits. On the basis of the geological setting of the northern and southern flanks of the Jinjiling Synclinorium and synthetic analyses of gold metallogeny, the Xilingpo-Dingjiashan Anticline(north zone)as the east extension of the Jinlongshan-Qiuling Gold Belt, Sixiakou-Ertianmen(middle zone)and the Renhekou-Gongguan-Huilong Hg- and Sb-bearing Synclinorium(south zone)were proposed as important targets for locating gold resources.

参考文献/References:

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备注/Memo

备注/Memo:
[收稿日期]2004-12-02
[基金项目]国家经贸委项目(陕西镇安金龙山矿区及外围岩金普查(2001～2004))
[作者简介]史光德(1964-),男,河南新乡人,高级工程师,从事金矿床勘探与研究。
更新日期/Last Update: 1900-01-01