河南内乡县银洞沟银多金属矿床碳-氢-氧同位素地球化学

doi:10.3321/j.issn:1000-0569.2005.05.005

CORC > 北京大学 > 地球与空间科学学院

	河南内乡县银洞沟银多金属矿床碳-氢-氧同位素地球化学; The C-H-O isotope systematics of the Yindonggou Ag-dominated poly-metals deposit in the Neixiang county, Henan province
	张静 ; 燕光谱 ; 叶霖 ; 李国平 ; 李忠烈 ; 王志光
刊名	岩石学报
	2005
关键词	成矿流体氢氧碳同位素体系银洞沟银多金属矿床秦岭造山带河南省 ore-fluid C-H-O isotope systematics Yindonggou Ag-dominated poly-metals deposit Qinling orogen Henan province
DOI	10.3321/j.issn:1000-0569.2005.05.005
英文摘要	河南内乡银洞沟银多金属矿床赋存于东秦岭北坡的二郎坪群,属于断裂构造控制的脉状造山型银多金属矿床成矿流体δ~(18)O 值为2.7～9.6‰,δD 值为-95～-73‰,δ~(13)C 值为0.1～0.9‰。早阶段流体为源于含海相碳酸盐的岩石组合的变质脱水,晚期流体来自大气降水的循环。矿区南侧含大理岩的秦岭群符合早阶段变质流体的源区岩性特征,因此认为,在中生代扬子与中朝大陆碰撞过程中,秦岭群板片沿朱夏断裂向北陆内俯冲到二郎坪地体之下,在二郎坪地体之下变质脱水,导致造山型银/金矿床成矿流体系统发育,流体在赋矿构造的韧脆性转变带或韧脆性转变期卸载成矿物质,形成银洞沟大型银多金属矿床。; The Yindonggou Ag-dominated poly-metals deposit is a fault-controlled lode deposit hosted in the Erlangping Terrane, northern East Qinling Orogen. The delta(18)O, delta D and delta(13)C(PDB) values of its ore-fluids range 2. 7 - 9. 6 parts per thousand, - 95 73 parts per thousand, and 0. 1 similar to 0. 9 parts per thousand, respectively. This implies that the fluids in the early stage are sourced from the metamorphic devolatilization of marine carbonate-containing lithologies, and in the late stage from meteoric water circulation. The marble-containing Qiuling Group in the south of the Yindonggou deposit can match up with the lithologic source of the early stage ore-fluids. Hence we think that the Qinling Group underthrusted northward beneath the Erlangping Terrane along the Zhu-Xia fault during Mesozoic collision between the Yangtze and Sino-Korea continents; the underthrusted slab metaphorically, devolatilized, resulting development of the orogenic-type AU/Ag ore-forming fluid-systems; and then the ore-fluids discharged ore-forming metals at the ductile-to-brittle transition stage or/and position of the ore-hosting structures, causing the formation of the Yindonggou large-sized Ag-dominated poly-metals deposit.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000233172900005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 14; 05; 1359-1364; 21
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/240553]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	张静,燕光谱,叶霖,等. 河南内乡县银洞沟银多金属矿床碳-氢-氧同位素地球化学, The C-H-O isotope systematics of the Yindonggou Ag-dominated poly-metals deposit in the Neixiang county, Henan province[J]. 岩石学报,2005.
APA	张静,燕光谱,叶霖,李国平,李忠烈,&王志光.(2005).河南内乡县银洞沟银多金属矿床碳-氢-氧同位素地球化学.岩石学报.
MLA	张静,et al."河南内乡县银洞沟银多金属矿床碳-氢-氧同位素地球化学".岩石学报 (2005).