英格兰北部泥盆纪威尔代尔花岗岩中石油的就位

IF 0.5 4区 地球科学 Q4 GEOLOGY
Society Mas'ud Baba, J. Parnell, S. Bowden, J. Armstrong, Magali Perez, X. Wang
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引用次数: 4

摘要

在英格兰北部奔宁山脉北部的泥盆纪威尔代尔花岗岩的矿化带中,石油残留物以固体沥青的形式存在。类似的残留物存在于上覆的密西西比岩石中,可能来自石炭纪,即花岗岩成矿后期。沥青在萤石成矿过程中已固化,不含油包裹体。剩余物表明,该地区有机质热成熟度不高,受到早二叠世白垩纪的影响。与硫化物-萤石矿化一样,油侵期晚于岩台侵入。与油渣相关的黄铁矿富含铅、银、金、硒和碲等微量元素,表明成矿流体至少与迁移的碳氢化合物有共同的途径,也可能存在未发现的贵重金属资源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Emplacement of oil in the Devonian Weardale Granite of northern England
Oil residues occur as solid bitumen in mineralized zones within the Devonian Weardale Granite of the northern Pennines, northern England. Comparable residues are present in the overlying Mississippian rocks and were probably derived from a Carboniferous source, i.e. during later mineralization of the granite. The bitumen was already solidified during fluorite mineralization, which does not contain oil inclusions. The residues do not show the high thermal maturity of organic matter in the region altered by the earliest Permian Whin Sill. Like the sulphide-fluorite mineralization, oil emplacement post-dated intrusion of the sill. Pyrite associated with the oil residues is enriched in trace elements including lead, silver, gold, selenium and tellurium, which suggests that mineralizing fluids at least shared pathways with migrating hydrocarbons and possibly also suggests undiscovered valuable metal resources.
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来源期刊
CiteScore
2.00
自引率
30.00%
发文量
7
审稿时长
>12 weeks
期刊介绍: The Proceedings of the Yorkshire Geological Society (PYGS) has been published without a break since 1839. It is one of the leading journals of British geology. Each year two parts are issued containing original research papers on all aspects of geology. Traditionally the Proceedings has given particular attention to the geology of northern England and its neighbouring areas. The submission of papers on related topics but of a more general interest is encouraged. All papers are subjected to the full scrutiny of two independent referees.
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