Metallogenic Characteristics and Genesis of the Qingyangou Ni-Mo Deposit in the Northern
详细信息
- 责任者：Wang Lishe (Xi’an Geological Survey Center ; Xi’an 710054 ; China) ; Zhang Fuxin
- 刊名：Geology and Prospecting
- 出版年：2010
- 卷期：46(5)
- 关键词：镍矿 ; nickel ores ; 钼矿 ; molybdenum ores ; 秦岭 ; Qinling Mountains
- 页码：p.863-871
- 图表：5 illus., 6 tables, 14 refs.
- 分类号：1001
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
Field investigations and researches suggest that the Qingyangou Ni-Mo deposit hosts in the black rock series at the lower section of the Miaowan Formation,which is made up of sericite,plagioclase quartz phyllite,maculose biotite two-mica phyllite,graphitlized sericite phyllite,muscovite fine crystalline marble-carbonceous dolomite,graphite-quartz-diopside-tremolite rock and clalcite quartz schist.The contents of Mo,Ni、,Ti,Cu,Pb,Zn,P and TOC are high in these rocks.Macroscopic and microscopic geological characteristics show the rocks have experienced regional metamorphism,and the shear tectonic process of brittle-ductile superposition and transformation in the later period.Because of the process,Mo and Ni have been migrated deposited after their formation.Finally,they are hosted in the schistosity zone or the contact between ductile bodies and rigid bodies,which has undergone intense tectonic deformation.Studies show that the relationship between veins and mineralization in the deposit area is not obvious.Thus the authors consider that the deposit is a sedimentary-metamorphic-structural-hydrothermal-reformation type Ni-Mo deposit.