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首页> 外文期刊>Economic geology and the bulletin of the Society of Economic Geologists >Rhenium Enrichment in the Muratdere Cu-Mo (Au-Re) Porphyry Deposit,Turkey: Evidence from Stable Isotope Analyses (delta S-34, delta O-18, delta D) and Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry Analysis of Sulfides
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Rhenium Enrichment in the Muratdere Cu-Mo (Au-Re) Porphyry Deposit,Turkey: Evidence from Stable Isotope Analyses (delta S-34, delta O-18, delta D) and Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry Analysis of Sulfides

机译：Muratdere Cu-Mo（Au-Re）卟啉沉积物中的铼富集，土耳其：来自稳定同位素分析的证据（Delta S-34，Delta O-18，Delta D）和激光烧蚀电感耦合等离子体 - 质谱分析硫化物

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The Muratdere Cu-Mo (Au) porphyry deposit in western Turkey contains elevated levels of rhenium and is hosted within granodioritic intrusions into an ophiolitic melange sequence in the Anatolian belt. The deposit contains several stages of mineralization: early microfracture-hosted molybdenite and chalcopyrite, followed by a quartz-pyrite-chalcopyrite vein set associated with Cu-Au grade, a quartz-chalcopyrite-pyrite-molybdenite vein set associated with Cu-Mo-Re grade, and a later polymetallic quartz-barite-sphalerite-galena-pyrite vein set. The rhenium in Muratdere is hosted within two generations of molybdenite: early microfracture-hosted molybdenite and later vein-hosted molybdenite. In situ laser ablation-inductively coupled plasma-mass spectrometry analysis of sulfides shows that the later molybdenite has significantly higher concentrations of Re (average 1,124 ppm, sigma = 730 ppm, n = 43) than the early microfracture-hosted molybdenite (average 566 ppm, sigma = 423 ppm, n = 28). Pyrite crystals associated with the Re-rich molybdenite have higher Co and As concentrations than those in other vein sets, with Au associated with As. The microfracture-hosted sulfides have delta S-34 values between -2.2 parts per thousand and +4.6 parts per thousand, consistent with a magmatic source. The vein-hosted sulfides associated with the high-Re molybdenite have a delta S-34 signature of 5.6 parts per thousand to 8.8 parts per thousand, similar to values found in peridotite lenses in the Anatolian belt. The later enrichment in Re and delta S-34-enriched S may be sourced from the surrounding ophiolitic country rock or may be the result of changing redox conditions during deposit formation.
机译：穆拉多德Cu-Mo（Au）斑岩葡萄氏菌在西部的卟啉沉积物含有升高的铼水平，并在Granodioritic Intrings内宿主到Anatolian带中的眼镜瘤序列中。该矿床含有几个矿化矿化：早期的微压宿主钼酸盐和硫代铜矿，其次是与Cu-Au级相关的石英 - 黄铁矿 - 黄铜矿静脉设定，一种与Cu-Mo-Re相关的石英 - 黄铜矿 - 硫酸钼 - 钼静脉组合等级，以及后来的多金属石英晶区域 - 斯普利纳 - 普莱纳 - 硫铁矿静脉套装。 Muratdere的铼在两代钼酸盐中举办：早期的微折衷型钼矿和后来静脉托管钼矿。原位激光烧蚀电感耦合硫化物的等离子体质谱分析表明，钼矿的浓度明显高于Re（平均1,124ppm，sigma = 730ppm，n = 43），而不是早期的微折衷末端钼矿（平均566ppm ，sigma = 423 ppm，n = 28）。与重新富含钼矿的硫铁矿晶体具有更高的CO和浓度，而不是其他静脉套，Au与Au相关的Au。托管硫化物的硫化物含量为-2.2份/千分之一的δ-34值，与岩浆源一致。与高钼酸盐相关的静脉托管硫化物具有5.6分别为千分之千至8.8份千分之千至8.8份的δ-34签名，类似于Anatolian皮带中的透镜镜片中的值。 Re和Delta S-34富集的S中的后期富集可以来自周围的眼镜乡村岩石，或者可能是在沉积物形成期间改变氧化还原条件的结果。

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    McFall Katie; Roberts Stephen; McDonald Iain; Boyce Adrian J.; Naden Jonathan; Teagle Damon;

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    Univ Southampton Natl Oceanog Ctr Southampton Ocean &

    Earth Sci European Way Southampton SO14 3ZH Hants England;

    Univ Southampton Natl Oceanog Ctr Southampton Ocean &

    Earth Sci European Way Southampton SO14 3ZH Hants England;

    Cardiff Univ Sch Earth &

    Ocean Sci Main Bldg Pk Pl Cardiff CF10 3AT S Glam Wales;

    SUERC Scottish Enterprise Technol Pk Rankine Ave Glasgow G75 0QF Lanark Scotland;

    BGS Nicker Hill Keyworth NG12 5GG Notts England;

    Univ Southampton Natl Oceanog Ctr Southampton Ocean &

    Earth Sci European Way Southampton SO14 3ZH Hants England;

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  • 中图分类 地质学;
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