
%0 Journal Article
%A Meffre, Sebastien 
%A A. Glen, Richard 
%T Low-Ti Silurian-Early Devonian continental rift tholeiites and plagiogranites in the Tumut area, NSW
%J ASEG Extended Abstracts
%D 2006/03/01
%V 2006
%N 1
%P 1-3
%K 
%R https://doi.org/10.1071/ASEG2006AB112
%U https://www.publish.csiro.au/paper/ASEG2006AB112 
%X A suite of low-Ti Silurian to Early Devonian basaltic rock and plagiogranite in the Tumut area have previously been interpreted as back-arc tholeiitic basalt and ophiolitic rocks formed in an oceanic environment. Re-examination of these rocks and their geological contacts show that they closely resemble low-Ti continental rift tholeiites and their felsic shallow intrusive differentiation products. The mafic rocks have strong similarities to the low-Ti Jurrassic break up dolerites in Tasmania. The basalts and intrusive rocks were probably derived from the sub-continental mantle during Silurian- Devonian rifting well after the initial emplacement of the ophiolitic rocks in the Tumut area. 
