GYIG OpenIR  > 矿床地球化学国家重点实验室  > 期刊论文
桂北沙子江花岗岩型铀矿床碳、氧、硫同位素特征及其成因意义
石少华; 胡瑞忠; 温汉捷; 孙如良; 王加昇; 陈恒
2011
Source Publication矿物岩石地球化学通报
Issue1Pages:88-96
Abstract测定了沙子江矿床及邻区矿床中与矿化密切有关的脉石矿物的稳定同位素,测知沙子江矿床方解石的δ13CPDB值为-2.8‰~-11.0‰,集中于-5‰~-9‰;表明矿化剂CO2主要来自地幔,混有少量有机质和沉积碳酸盐物质。δ13CPDB与δ18OSMOW呈显著的负相关关系,暗示流体去气(CO2)是方解石沉淀的主控因素。铀沉淀为多因素耦合作用的结果;去气作用导致成矿流体中碳酸铀酰络离子的解体,有利于铀的沉淀。S2-作为还原剂对铀沉淀也起了很大的作用。沙子江矿床黄铁矿的δ34SCDT值为-18.36‰~-8.92‰,可能主要来源于赋矿的花岗岩,而邻区孟公界和白毛冲矿床的δ34SCDT值为-30.51‰~-27.64‰,更多地继承了赋矿花岗岩源岩中沉积硫的特征。
Keyword稳定同位素 方解石 黄铁矿 沙子江 苗儿山 桂北
Subject Area矿床地球化学
Indexed ByCSCD
Language中文
CSCD IDCSCD:4156311
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Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6722
Collection矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文
Recommended Citation
GB/T 7714
石少华,胡瑞忠,温汉捷,等. 桂北沙子江花岗岩型铀矿床碳、氧、硫同位素特征及其成因意义[J]. 矿物岩石地球化学通报,2011(1):88-96.
APA 石少华,胡瑞忠,温汉捷,孙如良,王加昇,&陈恒.(2011).桂北沙子江花岗岩型铀矿床碳、氧、硫同位素特征及其成因意义.矿物岩石地球化学通报(1),88-96.
MLA 石少华,et al."桂北沙子江花岗岩型铀矿床碳、氧、硫同位素特征及其成因意义".矿物岩石地球化学通报 .1(2011):88-96.
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