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Journal of the Geological Society; 2007; v. 164; issue.5; p. 937-940;
DOI: 10.1144/0016-76492006-175
© 2007 Geological Society of London

Short Communication

Linking crustal reworking to terrane accretion

C. Clark1, M. Hand2, D.E. Kelsey2 & B. Goscombe2

1 1The Institute for Geoscience Research (TIGeR), Department of Applied Geology, Curtin University of Technology, WA 6845, Australia (e-mail: c.clark{at}curtin.edu.au)
2 2Continental Evolution Research Group, School of Earth and Environmental Sciences, University of Adelaide, SA 5005, Australia

The Strangways Metamorphic Complex in central Australia is a key terrane in models for the evolution of the Australian continent. The Arunta Complex preserves a long-lived (c. 1700–320 Ma) record of crustal reworking, the drivers of which are the subject of considerable debate. Pressure–temperature data and in situ monazite geochronology constrain the reworking to be coincident with the c.1645 Ma Liebig Orogeny. This suggests that reworking in the Strangways Metamorphic Complex is related to terrane accretion rather than other factors such as anomalous enrichment in high-heat-producing elements or within-plate processes.