地质与资源2013，Vol.22Issue(3)：174-178,191,6.
大兴安岭北段砂宝斯-老沟地区金成矿规律及找矿方向
METALLOGENIC REGULARITY AND ORE-SEARCHING DIRECTION OF THE SHABAOSI-LAOGOU REGION IN THE NORTHERN SECTION OF DAXINGANLING
孙家宁 1申大元1
作者信息
- 1. 中国华冶科工集团有限公司,北京100176
- 折叠
摘要
Abstract
The Shabaosi-Laogou region,Mohe County in the northern section of Daxinganling is an important gold output area of China.On the basis of previous studies,the tectonic evolution and sedimentary filling history of the Upper Heilongjiang basin are analyzed with the metallogenic regularity of typical deposits in the region.By superimposition of the sedimentary paleogeographic environment with the location of favorable mineralization,together with the analysis on the granularity of the ore-bearing sandstone and the content of reducing matters,it is pointed out that the delta front of the braided river delta depositional system in the ore-wall rock of Ershierzhan Formation is the favorable ore-forming area.Combined with the magmatic activity and tectonic development situation in this region,the ore-searching direction is defined at the composite area of the Shabaosi-Laogou annular structure and the braided river delta sedimentary system.With geochemical techniques and large-scale geological mapping,the north-trending fault zone should be positioned for the altered fracture belt within it.关键词
沉积环境/成矿规律/找矿方向/砂宝斯-老沟地区/上黑龙江盆地/大兴安岭北段Key words
depositional environment/ metallogenic regularity/ ore-searching direction/ Shabaosi-Laogou region/ Upper Heilongjiang basin/ northern section of Daxinganling分类
天文与地球科学引用本文复制引用
孙家宁,申大元..大兴安岭北段砂宝斯-老沟地区金成矿规律及找矿方向[J].地质与资源,2013,22(3):174-178,191,6.
