...三叠系延长组；油藏；陕北斜坡；鄂尔多斯盆地 [gap=1278]Key words： reservoir forming geochronology，Triassic Yanchang formation，reservoir，north Shaanxi slope，Ordos basin ..
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Formation factors and mechanism of the laumontite in upper Triassic Yanchang group of Jingan oilfield are analyzed.
分析了靖安油田上三叠系延长统浊沸石的形成条件及形成机理。
Rare earth elements (REE) and trace elements were used to analyse source rock and source direction of Yanchang Formation of the Upper Triassic in Ordos Basin.
利用稀土元素和微量元素，分析鄂尔多斯盆地中部上三叠统延长组母岩类型和物源方向。
The results are important in studying the distribution and hydrocarbon generation capacity of the source rocks of the Member 1 of Yanchang Formation, Upper Triassic in Shanbei area.
本项研究结果对于重新认识陕北地区长1段烃源岩的分布及有机地球化学特征具有重要的意义。
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