Study has shown that the primary rocks of metamorphic supercrustal rocks are mainly calc-alkaline volcanic rocks.
研究表明，变质上壳岩原岩主要以钙碱性火山（熔）岩为主。
The primary rocks are a series of intermediate-acid volcanics and carbonate formed in environment of rift valley.
原岩为一套在裂谷环境下形成的中酸性火山岩及碳酸盐岩。矿体的容矿岩石是镁质大理岩。
The primary rocks include the various sodium-rich volcanic rocks and the sedimentary rocks with sodium-rich volcanic materials which are well developed in the North Qilian eugeosyncline area.
区内含蓝闪石岩的原岩包括优地槽内发育的各类富钠火山岩、含富钠火山质的沉积岩。
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