Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/935475

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Title
Geochemical, isotopic and petrographic constraints on the origin and development of the Barrington Tops Batholith
Author/Creator
Meek, I.;  Landenberger, B.
Institution
The University of Newcastle. Faculty of Science & Information Technology, School of Environmental and Life Sciences
Description
The Barrington Tops Batholith (BTB) is an Early Permian, granodioritic suite intruding the Tamworth Belt in the Southern New England Fold Belt (SNEFB), as shown in Fig. 1. It is composed of three plutons of two comagmatic compositions: the two larger plutons, Omadale Brook and Barrington River, are augitehypersthene granodiorite, while the Gummi Plain pluton, to the north-east is a hornblende-biotite granodiorite (Mason and Kaverlieris 1984; Eggins and Hensen 1987). In addition to the granodiorites, Eggins (1984) notes the presence of several phases of dyke and stock intrusion. Two phases of mafic dykes are associated with the plutons, one intruding before the plutons, and one after. In addition, aplitic and microgranodioritic dykes of similar mineralogy to the main suite are known. These felsic intrusives are noted on the margins of the intrusions and are seen in both the granodiorites and their surrounding aureole. Finally, Eggins (1984) notes the presence of quartz diorite intrusives in several locations around the BTB. However, poor outcrop means that the relationship between these and the other intrusives has not been discerned.
Relation
New England Orogen 2010 (NEO 2010). Proceedings of the New England Orogen 2010 (Armidale, N.S.W. 16-19 November, 2010) p. 235-241
Relation
https://sites.google.com/site/newenglandorogenconference
Date
2010
Publisher
University of New England
Keyword(s)
granodiorite;  Barrington Tops;  geochemistry;  plutons;  sr isotope
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/935475
Identifier
ISBN:9781921597244
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Subject
"Geochemical, isotopic and petrographic constraints on the origin and development of the Barrington Tops Batholith"
 
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