鄂尔多斯盆地姬塬西部三叠系延长组长8油层组成岩作用与致密化过程*
汪洋1,2, 刘洛夫1,2, 李树同3, 吉海涛1,2, 李林泽1,2, 罗泽华1,2, 许同1,2

Diagenesis and densification process of the Chang 8 Interval of Triassic Yanchang Formation, western Jiyuan area, Ordos Basin
Wang Yang1,2, Liu Luofu1,2, Li Shutong3, Ji Haitao1,2, Li Linze1,2, Luo Zehua1,2, Xu Tong1,2
鄂尔多斯盆地姬塬西部长8油层组岩屑类型 A—池286井,2451.40,m,岩屑含量高(该视域内岩屑体积分数约25%),单偏光;B—黄48井,2667.00,m,变质岩岩屑,正交光;C—黄48井,2667.00,m,火山岩岩屑且可见岩屑溶蚀孔,单偏光;D—黄44井,2275.80,m,泥岩岩屑,单偏光;E—黄48井,2667.00,m,云母,正交光;F—盐123井,2506.40,m,云母溶蚀,扫描电镜