成都理工大学学报（自然科学版）2017，Vol.44Issue(3)：318-333,16.DOI:10.3969/j.issn.1671-9727.2017.03.05
河南栾川中鱼库矽卡岩矿物学特征及地质意义
Characteristics and geological significance of skarn minerals from the Zhongyuku sulfide-zinc polymetallic deposit in Luanchuan, Henan, China
摘要
Abstract
Systematic field work,microscopic identification and electron microprobe technology are carried out to study the mineralogical characteristics of skarn and to discuss the petrogenic and metallogenic mechanism in the Zhongyuku sulfide-zinc polymetallic deposit.It reveals that the ore deposit has experienced four ore-forming stages,such as skarn stage,retrograde alteration stage,quartz sulfide stage and carbonate stage,respectively.The skarns in the Zhongyuku deposit belong to typical calcic skarns resulted from the replacement of granitoid magma.Garnets in the ore deposit are mainly composed of andradite-grossularite and the pyroxenes mainly belonging to diopside-andradite series.Amphiboles in the ore show characteristics of calciferous amphibole,and the chlorites are mainly brunsvigite.Components of garnet and pyroxene suggest that the ore-forming fluid have an evolutionary trend from acidic to basic and from reduction to oxidation condition at the skarn stage.From the retrograde alteration stage to the quartz sulfide stage,the oxygen fugacity drops with the evolutionary of ore-forming fluid.The metal sulfides are precipitated at the quartz sulfide stage.关键词
矽卡岩/矿物学/硫锌多金属矿床/中鱼库Key words
skarn/mineralogy/sulfide-zinc polymetallic deposit/Zhongyuku分类
天文与地球科学引用本文复制引用
胡昕凯,张寿庭,曹华文,裴秋明,夏炳卫,赵玉,王亮..河南栾川中鱼库矽卡岩矿物学特征及地质意义[J].成都理工大学学报（自然科学版）,2017,44(3):318-333,16.基金项目
中国地质调查局地质调查项目(1212011220925) （1212011220925）
国家“十二五”科技支撑计划项目(2011BAB04B06). （2011BAB04B06）
