Ellrod, G. (2005). Remote Sensing of Volcanic Ash. National Weather Association. Retrieved May 24, 2010.

埃尔罗德。G .，(2005年)，火山灰之遥测，美国国家气象协会，2010年5月24日检索。

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The Middle Ordovician submarine spilite-alkaline volcanic rock association in the Shihuigou area in the Northern Qilian mountains was the product of island arc volcanism.

北祁连山石灰沟地区发育一套完整的奥陶纪岛弧火山岩系。

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And the crust continued to be extensional during the Late Cretaceous and Tertiary period resulting from the volcanic sedimentary association with the rift type characteristics.

晚白垩世—第三纪地壳继续处于拉张松弛环境，形成以裂谷环境为主要特征的火山—沉积岩石组合。

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