The geology and petrology of Cainozoic basaltic rocks in the Cooktown area, North Queensland

作者: W. R. Morgan

DOI: 10.1080/00167616808728681

关键词: NephelinitePicrite basaltPresent dayBasaltic rockPetrologyBasaltGeologyGeochemistryOlivineCenozoic

摘要: Abstract Over most of the area, McLean Basalt, southwest Cooktown, and Piebald north were erupted on to a land surface generally similar that present day. The basalts form horizontal flows, number vents have been identified. In main, lavas consist olivine basalt; these are shown by chemical analysis be alkaline, transitional tholeiite. several flows consisting analcimite discovered. An nephelinite flow is associated with Basalt. Chemical analyses analcimites presented discussed.

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