摘要
松辽盆地南部姚家组铀矿化的岩石学、岩石化学、同位素、X衍射、包裹体特征分析表明,与铀矿关系密切的含油层位为下伏营城组和登娄库组。油气对铀矿成矿的作用表现为油气后生还原褪色蚀变形成局部还原障;形成黄铁矿、地沥青还原物质,提高砂体的还原能力;直接使铀矿沉淀富集。油气作为姚家组砂岩型铀矿成矿的主控矿因素之一,可用于找矿有利地段的预测。
Studies on the characteristics of lithology, petrochemistry, isotope, X-ray diffraction, inclusions of rocks in the souther Songliao basin shows that uranium mineralization is closely related to oil hosting layer in Yingcheng formation and Denglouku formation. The role of oil-gas in uranium mineralization are as follows： forming local reducing barrier by fading alteration; forming reducing materials like pyrite and land asphalt, and increasing reducing sandbody which cause uranium concentration and precipitation. Therefore oil-gas can be regarded as one of the predominant uranium mineralization factors and can be used to predict prospective segment in sandstone type uranium exploration in south Songliao basin.
出处
《铀矿地质》
CAS
CSCD
2008年第1期43-47,23,共6页
Uranium Geology
关键词
松辽盆地南部
油气
姚家组
砂岩型铀矿
southern songliao basin
oil-gas
Yaojia formation
sandstone type uranium mineralization
