Journal article
Palaeozoic intraplate crustal anatexis in the Mount Painter Province, South Australia: Timing, thermal budgets and the role of crustal heat production
Sandra McLaren, Mike Sandiford, Roger Powell, Narelle Neumann, Jon Woodhead
JOURNAL OF PETROLOGY | OXFORD UNIV PRESS | Published : 2006
Abstract
The effect of radiogenic heat production within the crust on thermal processes such as crustal anatexis is generally disregarded as bulk geochemical models suggest that crustal heat generation rates are too low to effect significant heating. However, the Mount Painter Province in northern South Australia is characterized by a total crustal contribution to surface heat flow of more than twice the global average. The province is composed dominantly of Proterozoic granites and granite gneisses with an area average heat production of 16.1 μW/m3; individual lithologies have heat production >60 μW/m 3. These Proterozoic rocks are intruded by the British Empire Granite, a younger intrusive whose or..
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