肖晖,赵靖舟

• 1:西安石油大学地球科学与工程学院
• 2:西安石油大学陕西省油气成藏地质学重点实验室

摘要(Abstract)：

对鄂尔多斯盆地靖边气田马家沟组白云岩的阴极发光性和岩石地球化学研究发现,白云岩阴极发光强度与Mn、Fe质量分数比值呈正相关性,白云岩微量元素整体具有低Na、Mn、Sr和高Fe含量的特点.泥晶白云岩有序度低,平均0.67,Na含量较高,质量分数平均值为302.3×10~(-6),δ~(13)C分布在0.6‰～-1.58%o,平均值为-0.33‰,反映准同生白云岩化;细晶白云岩有序度平均为0.71,δ~(13)C平均为-1.5%o,Mn含量增加,反映受成岩早期大气淡水淋滤的影响增加;中-粗晶白云岩有序度平均为0.84,Fe含量异常高,质量分数平均为11 617.2×10~(-6),δ~(13)C、δ~(18)O值都偏负,反映白云岩形成于埋藏环境.

关键词(KeyWords)： 阴极发光;白云岩化;地球化学;马家沟组;靖边气田;鄂尔多斯盆地

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(编号:41102082,41002052);; 国家科技重大专项(编号:2008ZX05005-004-08HZ)

作者(Author): 肖晖,赵靖舟

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