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。
2
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。
3
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.