lithic arkose sandstone 岩屑质长石砂岩
The rock types of Chang 4 5 in this region are mostly arkose or lithic arkose sandstone.
研究区内长4 5储层的岩石类型主要为长石砂岩或岩屑质长石砂岩。
The main types of clastic sandstones are feldspathic litharenite and lithic arkose in the Cretaceous of the Songliao basin.
松辽盆地白垩系砂岩以长石岩屑砂岩和岩屑长石砂岩为特征。
The rocks are lithic arkose and arkose which are in low composition saturation and has high clay content, anhydrite, calcite and dolomite cements.
岩石类型为成分成熟度较低的岩屑长石砂岩和长石砂岩，并合较多的粘土矿物和硬石膏、方解石、白云石胶结物。
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