收稿日期: 2014-12-05
修回日期: 2015-02-16
网络出版日期: 2015-11-16
Study on Metallogenic Geological Conditions and Prospect Prediction at a Silver Ore in Zhengxiangbai Banner-Zhenglan Banner,Inner Mongolia
Received date: 2014-12-05
Revised date: 2015-02-16
Online published: 2015-11-16
内蒙古正镶白旗—正蓝旗地区成矿地质条件优越,但地质工作程度较低,具有较大的找矿潜力。区内出露地层主要有下二叠统三面井组上岩段和上侏罗统张家口组三岩段,其银含量较高。区内火山活动频繁且强烈,火山岩分布,火山期后热液活动与火山作用有关的构造、次火山岩体及其富含的大量挥发分,均对银等多金属的活化、迁移和富集起着重要作用,对矿床分布具有一定的控制。根据研究区银成矿地质条件,银矿(化)点的地质特征及分布规律,划分出2处银成矿远景区,指出应主要寻找火山热液—斑岩型和石英脉型银矿。因此,重视并加强火山岩区成矿条件的研究,对推动该区火山岩内银矿找矿工作具有一定的意义。
关键词: 正镶白旗— 正蓝旗; 成矿地质条件; 成矿远景区; 内蒙古
王新江 , 刘辰曦 , 沈柳生 , 祝永平 , 张晓 . 内蒙古正镶白旗—正蓝旗银成矿地质条件及远景预测[J]. 黄金科学技术, 2015 , 23(3) : 30 -37 . DOI: 10.11872/j.issn.1005-2518.2015.03.030
Although the high degree of geological conditions at the Zhengxiangbai Banner-Zhenglan Banner region,geological work was at low level with great prospecting potential.It presented the lower Permian Sanmianjing Group upper rock section and the upper Jurassic Zhangjiakou Group three rock section,and the silver content was higher.Due to the violent volcanic eruption,the structure of the hydrothermal activities related to volcanism during later volcanic period,volcanic rock and contains showed a large amount of volatiles,which played an important role in activation,migration and enrichment of silver and other metals.On this basis,according to the research area of silver and silver point of geological characteristics distribution laws and the metallogenic geological conditions,the region was divided into two silver metallogenic prospect areas.Therefore,strengthen the study of the metallogenic conditions of volcanic rock was meaningful to promote silver ore prospecting in volcanic rocks.
[1] 内蒙古地质矿产局.内蒙古区域地质志[M].北京:地质出版社,1991.
[2] 《内蒙古自治区志》编委会.内蒙古自治区地质矿产志[M].呼和浩特:内蒙古人民出版社,1996.
[3] 卢观送,李锋,梅杨,等.内蒙古正镶白旗二叠系下统三面井组基本特征及成矿规律[J].科技视界,2012,(27):410-411.
[4] 徐国风,邵洁涟.铁帽型金矿床的基本地质特征和控矿因素[J].地质科技情报,1986,5(1):79-83.
[5] 贺菊瑞,姚仲友,李瑛,等.长江中下游地区铁帽型金矿床的综合找矿方法[J].地质勘探,1992,28(9):37-32.
[6] 中国有色金属工业总公司.中国银矿床[R].成都:成都地质干部学院,1990.
[7] 张长江.河北蔡家营铅锌(金银)矿床地质特征[J].矿床地质,1990,9(4):301-308.
[8] 张伟春,崔大勇,赵刚.内蒙古自治区正镶白旗西地房子的矿化特征及探矿方法分析[J].有色矿冶,2010,26(3):10-12,19.
/
〈 | 〉 |