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<title>UTas ePrints - Lithospheric structure of the Pilbara Craton, Capricorn Orogen and northern Yilgarn Craton, Western Australia, from teleseismic receiver functions</title>
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<meta content="Reading, A.M." name="eprints.creators_name" />
<meta content="Kennett, B.L.N." name="eprints.creators_name" />
<meta content="Anya.Reading@utas.edu.au" name="eprints.creators_id" />
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<meta content="2007-08-13" name="eprints.datestamp" />
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<meta content="Lithospheric structure of the Pilbara Craton, Capricorn
Orogen and northern Yilgarn Craton, Western Australia,
from teleseismic receiver functions" name="eprints.title" />
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<meta content="Capricorn Orogen, Pilbara Craton, receiver function, seismic structure, Yilgarn Craton." name="eprints.keywords" />
<meta content="The upper lithospheric structure from the Pilbara Craton, across the Capricorn Orogen, to the northern Yilgarn Craton is determined from high-fidelity broadband seismic data. Three-component temporary stations were deployed in a line running southwards from Marble Bar, Western Australia, at approximately 118 degree E longitude. They were in position between July and October 2000. Receiver functions are calculated from the recorded teleseismic earthquakes stacked to improve the signal to noise ratio and, finally, the stacked waveforms used to model the seismic velocity profile under each recording station. Data from the permanent Global Seismic Network station, MBWA, at Marble Bar, which was installed in August 2001, are also used. The method provides a means of probing the deep structure of
the Earths crust and the nature of the seismic Moho at an intermediate scale between that of detailed active-source refraction techniques and the regional structure obtained from earthquake seismic tomography. The receiver functions and modelled seismic velocity structures along the north-south profile show the crust-mantle boundary under the Pilbara Craton to be shallow, at 30 km( plus or minus 2 km), with a sharp Moho and high-velocity crust beneath the exposed Pilbara granite-greenstone terrane. The sharp Moho extends under the metasediments of the Hamersley Basin. Beneath the Capricorn Orogen the Moho is barely discernible, showing a small seismic velocity contrast and a
broad zone of high-velocity gradient. The northern Yilgarn Craton, which extends beneath the basins exposed on the surface, is deeper, at 40 km (plus or minus 2 km), and again shows a sharply defined Moho." name="eprints.abstract" />
<meta content="2003-06" name="eprints.date" />
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<meta content="Australian Journal of Earth Sciences" name="eprints.publication" />
<meta content="50" name="eprints.volume" />
<meta content="3" name="eprints.number" />
<meta content="439-445" name="eprints.pagerange" />
<meta content="10.1046/j.1440-0952.2003.01003.x" name="eprints.id_number" />
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<meta content="0812-0099" name="eprints.issn" />
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<meta content="AMMON C. J., RANDALL G. E. & ZANDT G. 1991. The isolation of receiver effects from teleseismic P waveforms. Bulletin of the Seismological Society of America 81, 2504-2510.
BARLEY M. E. 1998. The tectonic and metallogenic evolution of the Pilbara Craton: preface. Precambrian Research 88, 1-2.
BLEWETT R. S. 2002. Archaean tectonic processes: a case for horizontal shortening in the Northern Pilbara Granite-Greenstone Terrane, Western Australia. Precambrian Research 113, 87-120.
BUICK R., THORNETT J. R., MCNAUGHTON N. J., SMITH J. B., BARLEY M. E. & SAVAGE M. 1995. Record of emergent continental crust ~3.5 billion years ago in the Pilbara Craton of Australia. Nature 375, 574-577.
CLITHEROE G., GUDMUNDSSON O. & KENNETT B. L. N. 2000. The crustal thickness of Australia. Journal of Geophysical Research 105, 13 697-13 713.
COLLINS C. D. N. 1991. The nature of the crust-mantle boundary under Australia from seismic evidence. In: Drummond B. J. ed. The Australian Lithosphere, pp. 67-80. Geological Society of Australia Special Publication 17.
DE WIT M. J. 1998. On Archaean granites, greenstones, cratons and tectonics: does the evidence demand a verdict? Precambrian Research 91, 181-226.
DENTITH M. C., DENT V. F. & DRUMMOND B. J. 2000. Deep crustal structure in the southwestern Yilgarn Craton, Western Australia. Tectonophysics 325, 227-255.
DRUMMOND B. J. 1983. Detailed seismic velocity/depth models of the upper lithosphere of the Pilbara Craton, northwest Australia. BMR Journal of Australian Geology & Geophysics 8, 35-51.
DRUMMOND B. J. 1988. A review of crust/upper mantle structure in the Precambrian areas of Australia and implications for Precambrian crustal evolution. Precambrian Research 40/41, 101-116.
FRIEND C. R. L., NUTMAN A. P. & MCGREGOR V. R. 1988. Late Archaean terrane accretion in the Godthab region, southern West Greenland. Nature 335, 535-538.
GREEN M. G., SYLVESTER P. J. & BUICK R. 2000. Growth and recycling of early Archaean continental crust: geochemical evidence from the Coonterunah and Warrawoona Groups, Pilbara Craton, Australia. Tectonophysics 322, 69-88.
HICKMAN A. H. 2001. The West Pilbara granite-greenstone terrane, and its place in the Pilbara Craton. In: Cassidy K. F., Dunphy J. M. & Van Kranendonk M. J. eds. Proceedings of the 4th International Archaean Symposium, pp. 319-321. AGSO-Geoscience Australia Record 2001/37.
KENNETT B. L. N. 2002. The Seismic Wavefield Volume II: Interpretation of Seismograms on Regional and Global Scales. Cambridge University Press, Cambridge.
KENNETT B. L. N. Seismic structure in the mantle beneath Australia. In: Hillis R. R. & Muller R. D. eds. Evolution and Dynamics of the Australian Plate. Geological Society of Australia Special Publication 22 and Geological Society of America Special Paper 372 (in press).
MACKEY T. E., MEIXNER A. J. & MILLIGAN P. R. 2000. Magnetic Anomaly Map of Western Australia (1:2 500 000 Scale). Australian Geological Survey Organisation, Canberra.
MYERS J. S. 1990a. Capricorn Orogen. In: Geology and Mineral
Resources of Western Australia, pp. 197-198. Geological Survey of Western Australia Memoir 3.
MYERS J. S. 1990b. Precambrian tectonic evolution of part of Gondwana, southwestern Australia. Geology 18, 537-540.
MYERS J. S. & HOCKING R. M. 1998. Geological Map of Western
Australia, 1:2 500 000 (13th edition). Geological Survey of Western Australian, Perth.
MYERS J. S., SHAW R. D. & TYLER I. M. 1996. Tectonic evolution of Proterozoic Australia. Tectonics 15, 1431-1446.
NELSON D. R. 1998. Granite-greenstone crust formation on the
Archaean Earth: a consequence of two superimposed processes.
Earth and Planetary Science Letters 158, 109-119.
NELSON D. R., TRENDALL A. F. & ALTERMANN W. 1999. Chronological correlations between the Pilbara and Kaapvaal Cratons. Precambrian Research 97, 165-189.
OREILLY S. Y., GRIFFIN W. L., POUDJOM DJOMANI Y. H. & MORGAN P. 2001. Are lithospheres forever? GSA Today, April, 4-10.
OCCHIPINTI S. A., SHEPPARD S., NELSON D. R., MYERS J. S. & TYLER I. M. 1998. Syntectonic granite in the southern margin of the Palaeoproterozoic Capricorn Orogen, Western Australia. Australian Journal of Earth Sciences 45, 509-512.
PIRAJNO F. & OCCHIPINTI S. A. 2000. Three Palaeoproterozoic basins-Yerrida, Bryah and Padbury-Capricorn Orogen, Western
Australia. Australian Journal of Earth Sciences 47, 675-688.
READING A. M., KENNETT B. L. N. & DENTITH M. C. 2003. Seismic structure of the Yilgarn Craton, Western Australia. Australian Journal of Earth Sciences 50, 427-438.
SAMBRIDGE M. S. 1999. Geophysical inversion with a neighbourhood algorithm. I. Searching a parameter space. Geophysical Journal International 138, 479-494.
SANDIFORD M. & MCLAREN S. 2002. Tectonic feedback and the ordering of heat producing elements within the continental lithosphere. Earth and Planetary Science Letters, 2004, 133-150.
SHIBUTANI T., SAMBRIDGE M. S. & KENNETT B. L. N. 1996. Genetic algorithm inversion for receiver functions with application to crust and uppermost mantle structure beneath Eastern Australia. Geophysical Research Letters 23, 1826-1832.
TRENDALL A. F. 1990. Pilbara Craton, Introduction. In: Geology and Mineral Resources of Western Australia, p. 128. Geological Survey of Western Australia Memoir 3.
TYLER I. M., FLETCHER I. R., DE LAETER J. R., WILLIAMS I. R. & LIBBY W. G. 1992. Isotope and rare-earth element evidence for a late Archaean terrane boundary in the southeastern Pilbara Craton, Western Australia. Precambrian Research 54, 211-229.
TYLER I. M. & THORNE A. M. 1990. The northern margin of the
Capricorn Orogen, Western Australia-an example of an Early
Proterozoic collision zone. Journal of Structural Geology 12, 685-701.
VAN KRANENDONK M. J. & COLLINS W. J. 2001. A review of the evidence for vertical tectonics in the Archaean Pilbara Craton, Western Australia. In: Cassidy K. F., Dunphy J. M. & Van Kranendonk M. J. eds. Proceedings of the 4th International Archaean Symposium, pp. 365-367. AGSO-Geoscience Australia Record 2001/37.
WEINBERG R. F. 2001. Diapirism in the Western Australian Archaean. In: Cassidy K. F., Dunphy J. M. & Van Kranendonk M. J. eds.Proceedings of the 4th International Archaean Symposium, p. 371. AGSO-Geoscience Australia Record 2001/37.
WELLMAN P. 2000. Upper crust of the Pilbara Craton, Australia: 3D geometry of a granite/greenstone terrain. Precambrian Research 104, 175-186.
ZEGERS T. E., DE WIT M. J., DANN J. & WHITE S. H. 1998. Vaalbara, Earths oldest assembled continent? A combined structural, geochronological and paleomagnetic test. Terra Nova 10, 250-259." name="eprints.referencetext" />
<meta content="Reading, A.M. and Kennett, B.L.N. (2003) Lithospheric structure of the Pilbara Craton, Capricorn Orogen and northern Yilgarn Craton, Western Australia, from teleseismic receiver functions. Australian Journal of Earth Sciences, 50 (3). pp. 439-445. ISSN 0812-0099" name="eprints.citation" />
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Orogen and northern Yilgarn Craton, Western Australia,
from teleseismic receiver functions" name="DC.title" />
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<meta content="Kennett, B.L.N." name="DC.creator" />
<meta content="260100 Geology" name="DC.subject" />
<meta content="The upper lithospheric structure from the Pilbara Craton, across the Capricorn Orogen, to the northern Yilgarn Craton is determined from high-fidelity broadband seismic data. Three-component temporary stations were deployed in a line running southwards from Marble Bar, Western Australia, at approximately 118 degree E longitude. They were in position between July and October 2000. Receiver functions are calculated from the recorded teleseismic earthquakes stacked to improve the signal to noise ratio and, finally, the stacked waveforms used to model the seismic velocity profile under each recording station. Data from the permanent Global Seismic Network station, MBWA, at Marble Bar, which was installed in August 2001, are also used. The method provides a means of probing the deep structure of
the Earths crust and the nature of the seismic Moho at an intermediate scale between that of detailed active-source refraction techniques and the regional structure obtained from earthquake seismic tomography. The receiver functions and modelled seismic velocity structures along the north-south profile show the crust-mantle boundary under the Pilbara Craton to be shallow, at 30 km( plus or minus 2 km), with a sharp Moho and high-velocity crust beneath the exposed Pilbara granite-greenstone terrane. The sharp Moho extends under the metasediments of the Hamersley Basin. Beneath the Capricorn Orogen the Moho is barely discernible, showing a small seismic velocity contrast and a
broad zone of high-velocity gradient. The northern Yilgarn Craton, which extends beneath the basins exposed on the surface, is deeper, at 40 km (plus or minus 2 km), and again shows a sharply defined Moho." name="DC.description" />
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<h1 class="ep_tm_pagetitle">Lithospheric structure of the Pilbara Craton, Capricorn Orogen and northern Yilgarn Craton, Western Australia, from teleseismic receiver functions</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Reading, A.M.</span> and <span class="person_name">Kennett, B.L.N.</span> (2003) <xhtml:em>Lithospheric structure of the Pilbara Craton, Capricorn Orogen and northern Yilgarn Craton, Western Australia, from teleseismic receiver functions.</xhtml:em> Australian Journal of Earth Sciences, 50 (3). pp. 439-445. ISSN 0812-0099</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/1585/1/Reading_et_al_2003.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/1585/1/Reading_et_al_2003.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />957Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input value="2052" name="docid" accept-charset="utf-8" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1046/j.1440-0952.2003.01003.x">http://dx.doi.org/10.1046/j.1440-0952.2003.01003.x</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The upper lithospheric structure from the Pilbara Craton, across the Capricorn Orogen, to the northern Yilgarn Craton is determined from high-fidelity broadband seismic data. Three-component temporary stations were deployed in a line running southwards from Marble Bar, Western Australia, at approximately 118 degree E longitude. They were in position between July and October 2000. Receiver functions are calculated from the recorded teleseismic earthquakes stacked to improve the signal to noise ratio and, finally, the stacked waveforms used to model the seismic velocity profile under each recording station. Data from the permanent Global Seismic Network station, MBWA, at Marble Bar, which was installed in August 2001, are also used. The method provides a means of probing the deep structure of
the Earths crust and the nature of the seismic Moho at an intermediate scale between that of detailed active-source refraction techniques and the regional structure obtained from earthquake seismic tomography. The receiver functions and modelled seismic velocity structures along the north-south profile show the crust-mantle boundary under the Pilbara Craton to be shallow, at 30 km( plus or minus 2 km), with a sharp Moho and high-velocity crust beneath the exposed Pilbara granite-greenstone terrane. The sharp Moho extends under the metasediments of the Hamersley Basin. Beneath the Capricorn Orogen the Moho is barely discernible, showing a small seismic velocity contrast and a
broad zone of high-velocity gradient. The northern Yilgarn Craton, which extends beneath the basins exposed on the surface, is deeper, at 40 km (plus or minus 2 km), and again shows a sharply defined Moho.</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Capricorn Orogen, Pilbara Craton, receiver function, seismic structure, Yilgarn Craton.</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/260100.html">260000 Earth Sciences > 260100 Geology</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">1585</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Mrs Katrina Keep</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">13 Aug 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">30 Jan 2008 15:34</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=1585;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=1585">item control page</a></p>
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