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| 滇西兰坪盆地富隆厂一带铅锌多金属矿床中闪锌矿的微量元素、S-Pb同位素特征及意义 | |
| 引用本文： | 王晓虎,宋玉财,侯增谦,张洪瑞,刘英超,杨竹森,杨天南,潘小菲,王淑贤,薛传东.滇西兰坪盆地富隆厂一带铅锌多金属矿床中闪锌矿的微量元素、S-Pb同位素特征及意义[J].岩石矿物学杂志,2011,30(1):45-59. |
| 作者姓名： | 王晓虎 宋玉财 侯增谦 张洪瑞 刘英超 杨竹森 杨天南 潘小菲 王淑贤 薛传东 |
| 作者单位： | 1. 中国地质科学院,地质研究所,北京,100037 2. 中国地质科学院矿产资源研究所,北京,100037 3. 国家地质实验测试中心,北京,100037 4. 昆明理工大学,云南,昆明,650093 |
| 基金项目： | 国家基础研究计划973项目，国家自然科学联合基金，国家自然科学杰出青年基金，国家科技支撑计划项目，国土资源大调查项目 |
| 摘 要： | 在野外地质观测基础上,对滇西兰坪盆地富隆厂一带的铅锌多金属矿床中广泛发育的闪锌矿进行了微量元素、S-Pb同位素组成的综合对比分析研究。结果表明,3个矿床的闪锌矿均表现出富Cd,贫Ge和Ga,Fe-Cd呈反相关关系,Zn/Cd平均比值较低,δ34S值基本一致,其变化范围较窄,峰值在5‰～6‰之间;不同矿床闪锌矿的铅同位素基本重合,在207Pb/204Pb-206Pb/204Pb和208Pb/204Pb-206Pb/204Pb投影图解中,主体均位于上地壳线和造山带线之间,在Δβ-Δγ图解中,总体上落入上地壳-地幔混合的俯冲带铅范围和上地壳铅范围内,与盆地内不同物质来源端员对比发现矿物中的Pb同位素基本在中新生代沉积岩系范围内。因此认为富隆厂一带铅锌多金属矿床是同一成矿流体活动的产物,只是产出空间位置不同,实为同一矿床。同时,其成矿温度为中低温,硫可能来自盆地中膏盐的有机质热化学还原或含硫有机物的分解,金属可能源自区域沉积地层。 |
| 关 键 词： | 兰坪盆地 富隆厂 铅锌 闪锌矿 微量元素 S-Pb同位素 |
Characteristics of trace elements and S-Pb isotopes in sphalerites from lead-zinc polymetallic deposits in Fulongchang area, Lanping Basin, western Yunnan Province, and their implications |
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| WANG Xiao_hu,SONG Yu_cai,HOU Zeng_qian,ZHANG Hong_rui,LIU Ying_chao,YANG Zhu_sen,YANG Tian_nan,PAN Xiao_fei,WANG Shu_xian and XUE Chuan_dong.Characteristics of trace elements and S-Pb isotopes in sphalerites from lead-zinc polymetallic deposits in Fulongchang area, Lanping Basin, western Yunnan Province, and their implications[J].Acta Petrologica Et Mineralogica,2011,30(1):45-59. | |
| Authors: | WANG Xiao_hu SONG Yu_cai HOU Zeng_qian ZHANG Hong_rui LIU Ying_chao YANG Zhu_sen YANG Tian_nan PAN Xiao_fei WANG Shu_xian and XUE Chuan_dong |
| Institution: | WANG Xiao-hu1,SONG Yu-cai1,HOU Zeng-qian1,ZHANG Hong-rui1,LIU Ying-chao1,YANG Zhu-sen2,YANG Tian-nan1,PAN Xiao-fei1,WANG Shu-xian3 and XUE Chuan-dong4(1.Institute of Geology,CAGS,Beijing 100037,China,2.Institute of Mineral Resources,3.National Research Center of Geoanalysis,4.Kunming University of Science and Technology,Kunming 650093,China) |
| Abstract: | There are many lead-zinc polymetallic deposits related to continental collision in Lanping Basin,western Yunnan Province.These deposits were formed in a continental collision environment,developed in a strong deformation sedimentary basin,controlled by thrust structure,had no obvious affinity to igneous activities and belong genetically to epigenetic mineralization.Thus they are significantly different from Sedex-type Zn-Pb deposits produced in the passive continental margin and also different from marine s... |
| Keywords: | Lanping Basin Fulongchang lead-zinc deposit spalerite trace elements S-Pb isotope |
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