西昆仑赛力亚克混杂堆积由形态、颜色和大小各异的沉积岩块体以及黑色泥质粉砂岩夹灰紫绿色钙质页岩、泥灰岩和层凝灰岩的基质组成。
The Saliyak melange consists of dark-gray to black muddy and silty microclastic rock with intercalation of grayish purple and grayish green calcareous and muddy shale, marl and tuff.
上下两层凝灰岩的生成年代无法区别，它们都诞生于440万年前，这意味着短时间内的两次火山喷发——也许只间隔了短短的一千年——将化石俘获在其间。
The dates of these tuffs proved indistinguishable-4.4 million years for both. This meant the volcanic eruptions had captured between them a focused lens of time-perhaps as little as a thousand years.
二叠系储集层主要由碳酸盐岩、沉凝灰岩、碎屑岩和火山岩组成。
The reservoirs in Permian is consist of carbonate rock, tuff, clastic rock and volcanic rock.
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