云南西畴红石岩铅锌铜矿床喷流沉积成因的地球化学特征  

The Hongshiyan lead and zinc copper Deposit jet sedimentary origin of geochemical evidence in Xichou County,Yunnan Province

作　　者：易友根 

机构地区：[1]福建省闽西地质大队,三明365001

出　　处：《福建地质》2014年第2期94-101,共8页Geology of Fujian

摘　　要：西畴红石岩铅锌铜矿床是滇东南地区首次在远离岩体外围田蓬组中发现的一处大型矿床,根据矿床地质背景,系统分析了红石岩铅锌铜矿床的地球化学特征,认为红石岩铅锌铜矿床的成矿元素具有明显的垂直和水平分带,容矿围岩的常量元素数据投影落入到热水沉积岩区域内,微量元素变化规律反映出与现代大洋热水沉积物相似的特点,稀土元素具有轻稀土富集的右倾特征,总量变化较大,但铅锌铜矿层中的稀土元素总量明显低于围岩,平均为66.16,与产于加拿大沙利文矿山的条带状富电气石热液沉积岩(57.85)相近,由此认为红石岩铅锌铜矿床是在特定的古构造古地理环境内形成的喷流沉积型矿床。The hongshiyan lead and zinc copper deposit is introduced for the first time in areas far from rock mass peripheral TianPeng group found in formation in a large deposit.According to the geological background of deposit.this paper systematically analyzed The hongshiyan lead and zinc copper ore bed let ore rock geochemical characteristics,think hongshiyan lead and zinc copper deposit metallogenic element has obvious vertical and horizontal zoning of surrounding rock,let mine of constant element data projection into the hot water sedimentary rock area,trace elements of change law reflects and modern ocean water sediment similar characteristics,rare earth elements have a light rare earth enrichment of the right characteristics,and the amount of change is bigger,but lead and zinc copper layer of rare earth element total amount was significantly lower than the surrounding rock,an average of 66.16,and from Canada Sullivan mine banded rich tourmaline hydrothermal sedimentary rock（57.85）,so close that The hongshiyan lead and zinc copper deposits in particular paleogeographic ancient tectonic environment is formed in the sedex deposit.

关 键 词：铅锌铜矿床 喷流沉积 地球化学 西畴红石岩 

分 类 号：P618.4[天文地球—矿床学]