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Geophysical anomalies and quartz microstructures, Eastern Warburton Basin, North-east South Australia: Tectonic or impact shock metamorphic origin?

Glikson, Andrew; Uysal, I T; Fitz Gerald, John; Saygin, Erdinc

Description

The Eastern Warburton Basin, Northeast South Australia, features major geophysical anomalies, including a magnetic high of near-200. nT centred on a ~. 25. km-wide magnetic low (<. 100. nT), interpreted in terms of a magmatic body below 6. km depth. A distinct seismic tomographic low velocity anomaly may reflect its thick (9.5. km) sedimentary section, high temperatures and possible deep fracturing. Scanning electron microscope (SEM) analyses of granites resolves microbreccia veins consisting...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
URI: http://hdl.handle.net/1885/72361
Source: Tectonophysics
DOI: 10.1016/j.tecto.2012.12.036

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