Authors
Alan RA Aitken, Peter G Betts
Publication date
2008/1
Journal
Geophysical Research Letters
Volume
35
Issue
1
Description
High resolution aeromagnetic data covering the polydeformed and poorly exposed Musgrave Province of Australia reveals the Grenville‐aged crustal architecture. A combination of upward continuation and the potential field tilt filter out magnetic anomalies relating to a late Neoproterozoic orogenic event, and emphasize the more subtle magnetic structural grain formed during the ca. 1320–1150 Ma Musgravian Orogeny. The resulting images indicate that crustal architecture is defined by the distribution of ca. 1150 Ma magnetic granitoids within less magnetic basement and is dominantly northeast trending, continuous beneath the Amadeus and Officer basins, and defines an orogenic belt that connects Mesoproterozoic provinces. The orogenic belt is truncated within Australia and precludes a direct east trending connection between the Musgrave Province and contemporaneous orogens in Laurentia. Clockwise …
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Scholar articles
ARA Aitken, PG Betts - Geophysical Research Letters, 2008