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为了了解黄县盆地煤与油页岩的形成环境及其综合开发利用潜力,运用有机岩石学方法,对其有机岩石学和地球化学特征进行了研究。结果表明,煤层与油页岩中的有机质主要形成于陆上高等植物。盆地边界断层控制着成煤作用过程:当断层停止活动时,形成泥炭沼泽;当断层重新活动时,盆地下沉,湖水侵入泥炭沼泽,形成油页岩。油页岩中含有丰富的角质体和壳屑体,导致长链饱和烃增加。   相似文献   
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本文以黔西南二叠系—三叠系为例,探讨微细粒浸染型金矿的矿源层与古地理、岩相、岩性、化石群落的关系;认为盆地边缘相、台盆相的含金量高于其他相。金往往在泥岩、粘土岩和富含软体动物的层位中富集。  相似文献   
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Molecular biomarkers are the important maturity parameters for sedimentary organic matter.They have also been widely used for determining the maturity of organic matter in ore deposits. However,during the study of organic matter in the Kupferschiefer from the Lubin mine, it had been found that the biomarkers were influenced by sulfide formation. In order to probe into the degree of influence on biomarkers, seven samples collected from a Kupferschiefer section from the Lubin mine were analyzed by various geochemical methods. The results indicated that in the samples with higher copper contents, the values of biomarkers are lower than in the samples with lower copper contents. In highly mineralized samples, hydrogen donation for thermochemical sulfate reduction (TSR) occurred in alkylated phenanthrenes and naphthalenes, leading to the decrease of 12 biomarker parameters during the Kupferschiefer mineralization.  相似文献   
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