Articles | Volume 12, issue 2
Research article
24 Feb 2021
Research article |  | 24 Feb 2021

Crustal structure of southeast Australia from teleseismic receiver functions

Mohammed Bello, David G. Cornwell, Nicholas Rawlinson, Anya M. Reading, and Othaniel K. Likkason

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Subject area: Crustal structure and composition | Editorial team: Seismics, seismology, paleoseismology, geoelectrics, and electromagnetics | Discipline: Seismology
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Cited articles

Amante, C. and Eakins, B. W.: ETOPO1 1 Arc-Minute Global Relief Model: Procedures, data sources and analysis, NOAA technical memorandum NESDIS NGDC-24, 19 pp, 2009. 
Ammon, C. J.: The isolation of receiver effects from teleseismic P waveforms, B. Seismol. Soc. Am., 81, 2504–2510, 1991. 
Ammon, C. J., Randall, G., and Zandt, G.: On the nonuniqueness of receiver function inversions, J. Geophys. Res., 95, 15303–15318, 1990. 
Arroucau, P., Rawlinson, N., and Sambridge, M.: New insight into Cainozoic sedimentary basins and Palaeozoic suture zones in southeast Australia from ambient noise surface wave tomography, Geophys. Res. Lett., 37, L07303,, 2010. 
Bannister, S., Yu, J., Leitner, B., and Kennett, B. L. N.: Variations in crustal structure across the transition from West to East Antarctica, Southern Victoria Land, Geophys. J. Int., 155, 870–884, 2003. 
Short summary
In this study, ground motion caused by distant earthquakes recorded in southeast Australia is used to image the structure of the crust and underlying mantle. This part of the Australian continent was assembled over the last 500 million years, but it remains poorly understood. By studying variations in crustal properties and thickness, we find evidence for the presence of an old microcontinent that is embedded in the younger terrane and forms a connection between Victoria and Tasmania.