Miocene lava flows and eruptive centres near Brisbane, Australia

Stevens N.C. (1970) Miocene lava flows and eruptive centres near Brisbane, Australia. Bulletin Volcanologique, 34 2: 353-371. doi:10.1007/BF02596761


Author Stevens N.C.
Title Miocene lava flows and eruptive centres near Brisbane, Australia
Journal name Bulletin Volcanologique   Check publisher's open access policy
ISSN 0366-483X
Publication date 1970
Sub-type Article (original research)
DOI 10.1007/BF02596761
Volume 34
Issue 2
Start page 353
End page 371
Total pages 19
Subject 1908 Geophysics
1906 Geochemistry and Petrology
Abstract Three ring-complexes are considered as possible sources for the volcanic sequences of the Lamington Group and Main Range Volcanics, all of Lower Miocene age. The Lamington Group lavas comprise transitional tholeiitic basalts and rhyolites with alkali basalts at the base; the Main Range Volcanics are an alkali olivine basalt - trachyte - soda rhyolite association. The Mt. Warning intrusive complex is thought to be the source of most of the lavas of the Lamington Group. It consists largely of plutonic rocks which have probably moved upwards by ring-faulting determining the initiation of erosion of the wide caldera in which the complex lies. Most of the members of the Mt. Barney complex preceded the Lamington Group lavas; the Mt. Alford complex was synchronous with the Main Range lavas, but is unlikely, from structural considerations, to have contributed to them. The two major volcanic groups are compared with each other and with the intrusive rocks of Mt. Warning and Mt. Alford by an alkali-silica diagram and 0 values.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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