Digital_Repository/Misc/Mass downloads/UTas/1586.html at f408dc826a33e17e0301fe6081775e77ab9692a0

nigel.stanger / Digital_Repository
Find file
Newer
Older
Digital_Repository / Misc / Mass downloads / UTas / 1586.html
Nigel Stanger on 7 May 2013 35 KB - Imported Misc directory.
Raw Blame History
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
  <head>
    <title>UTas ePrints - Seismic structure of the Yilgarn Craton, Western Australia</title>
    <script type="text/javascript" src="http://eprints.utas.edu.au/javascript/auto.js"><!-- padder --></script>
    <style type="text/css" media="screen">@import url(http://eprints.utas.edu.au/style/auto.css);</style>
    <style type="text/css" media="print">@import url(http://eprints.utas.edu.au/style/print.css);</style>
    <link rel="icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
    <link rel="shortcut icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
    <link rel="Top" href="http://eprints.utas.edu.au/" />
    <link rel="Search" href="http://eprints.utas.edu.au/cgi/search" />
    <meta content="Reading, A.M." name="eprints.creators_name" />
<meta content="Kennett, B.L.N." name="eprints.creators_name" />
<meta content="Dentith, M.C." name="eprints.creators_name" />
<meta content="Anya.Reading@utas.edu.au" name="eprints.creators_id" />
<meta name="eprints.creators_id" />
<meta name="eprints.creators_id" />
<meta content="article" name="eprints.type" />
<meta content="2007-08-13" name="eprints.datestamp" />
<meta content="2008-01-30T04:34:44Z" name="eprints.lastmod" />
<meta content="show" name="eprints.metadata_visibility" />
<meta content="Seismic structure of the Yilgarn Craton, Western Australia" name="eprints.title" />
<meta content="pub" name="eprints.ispublished" />
<meta content="260100" name="eprints.subjects" />
<meta content="restricted" name="eprints.full_text_status" />
<meta content="receiver function, seismic structure, tectonics, Yilgarn Craton." name="eprints.keywords" />
<meta content="The deep crustal and upper mantle structure of the Yilgarn Craton is investigated in this study using receiver-function analysis of teleseismic earthquake records from temporary stations. Two lines of stations were deployed, the main transect ran between Perth and Kalgoorlie, and a second line of stations ran across the east Yilgarn Craton 200 km to the north of Kalgoorlie. The broadband
instrumentation records high-fidelity waveform data allowing the signal from the near-receiver
structure to be separated from the influence of the earthquake source. The nature of the crust and
upper mantle structure under each station is determined from seismic-velocity models that match the
observed receiver-function waveforms and the resulting coarse-scale transect provides new,
independent controls on the structure of the lithosphere. Mechanisms for the evolution of the Yilgarn
Craton, previously put forward to explain surface geological and geochemical observations, and
seismic velocity structure from reflection and refraction studies, may be classified as favouring: (i) predominantly
accretionary lithospheric evolution; (ii) mixed accretion and other influences; or (iii) no
accretionary-style influence. Characteristics of the deep seismic structure enable the evolutionary
mechanism to be inferred. From the teleseismic data, we find that the seismic Moho is sharp in
character under stations in the middle of the proposed terranes and more gradational near the
proposed terrane boundaries. The Moho dips gently eastward and the seismic velocity of the upper
mantle increases moving from west to east across the whole craton. An anomalous region exists under
the Southwest terrane that shows a thick high-velocity gradient zone at the base of the crust and a
Moho dipping to the west. The nature of the lateral heterogeneity in structure and its correspondence
with proposed terrane boundaries suggest that accretionary processes are significant in the evolution
of the Yilgarn Craton." name="eprints.abstract" />
<meta content="2003-06" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Australian Journal of Earth Sciences" name="eprints.publication" />
<meta content="50" name="eprints.volume" />
<meta content="3" name="eprints.number" />
<meta content="427-438" name="eprints.pagerange" />
<meta content="10.1046/j.1440-0952.2003.01000.x" name="eprints.id_number" />
<meta content="UNSPECIFIED" name="eprints.thesis_type" />
<meta content="TRUE" name="eprints.refereed" />
<meta content="0812-0099" name="eprints.issn" />
<meta content="http://dx.doi.org/10.1046/j.1440-0952.2003.01000.x" name="eprints.official_url" />
<meta content="AMMON C. J. 1990. On the nonuniqueness of receiver function
inversions. Journal of Geophysical Research 95, 15 303-15 318.
AMMON C. J., RANDALL G. E. &amp; 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., BROWN S. J. A., BUCCI L. A., KRAPEZ B., ROSS A. A., HAND
J. &amp; CAS R. A. F. 2001. Tectonic evolution of the Kalgoorlie
Terrane: gold mineralisation in a Late Archaean orogen. In:
Cassidy K. F., Dunphy J. M. &amp; Van Kranendonk M. J. eds. Proceedings
of the 4th International Archaean Symposium, pp. 379-381.
AGSO-Geoscience Australia Record 2001/37.
BATEMAN R. 2001. Archaean gabbros and basalts (Kalgoorlie): geochemistry
and tectonics in time. In: Cassidy K. F., Dunphy J. M. &amp;
Van Kranendonk M. J. eds. Proceedings of the 4th International
Archaean Symposium, pp. 124-126. AGSO-Geoscience Australia
Record 2001/37.
BROWN S. J. A. 2001. The origin of TTD volcaniclastic rocks in the
Kalgoorlie Terrane, Western Australia. In: Cassidy K. F., Dunphy
J. M. &amp; Van Kranendonk M. J. eds. Proceedings. Of the 4th International
Archaean Symposium, pp. 131-133. AGSO-Geoscience
Australia Record 2001/37.
CASSIDY J. F. 1992. Numerical experiments in broadband receiver
function analysis. Bulletin of the Seismological Society of America
82, 1453-1474.
CHEN S. F., LIBBY J. W., GREENFIELD J. E., WYCHE S. &amp; RIGANTI A. 2001.
Geometry and kinematics of large arcuate structures formed by
impingement of rigid granitoids into greenstone belts during
progressive shortening. Geology 29, 283-286.
CLITHEROE G., GUDMUNDSSON O. &amp; KENNETT B. L. N. 2000. The crustal
thickness of Australia. Journal of Geophysical Research 105,
13 697-13 713.
CONDIE K. C. 2000. Episodic continental growth models: afterthoughts
and extensions. Tectonophysics 322, 153-162.
DALSTRA H. J., RIDLEY J. R., BLOEM E. J. M. &amp; GROVES D. I. 1999.
Metamorphic evolution of the central Southern Cross Province,
Yilgarn Craton, Western Australia. Australian Journal of Earth
Sciences 46, 765-784.
DAVIES G. F. 1995. Punctuated tectonic evolution of the Earth. Earth
and Planetary Science Letters 136, 363-379.
DE WIT M. J. 1998. On Archaean granites, greenstones, cratons and
tectonics: does the evidence demand a verdict? Precambrian
Research 91, 181-226.
DEBAYLE E. &amp; KENNETT B. L. N. Surface wave studies of the Australian
region. In: Hillis R. R. &amp; 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).
DENTITH M. C., DENT V. F. &amp; DRUMMOND B. J. 2000. Deep crustal
structure in the southwestern Yilgarn Craton, Western
Australia. Tectonophysics 325, 227-255.
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.
DRUMMOND B. J., GOLEBY B. R. &amp; SWAGER C. P. 2000. Crustal signature
of Late Archaean tectonic episodes in the Yilgarn craton, Western
Australia: evidence from deep seismic sounding. Tectonophysics
329, 193-221.
FAGAN R. K. 2001. An obduction model for the Archaean of the Yilgarn
Block of Western Australia. In: Cassidy K. F., Dunphy J. M. &amp; Van
Kranendonk M. J. eds. Proceedings of the 4th International
Archaean Symposium, pp. 504-505. AGSO-Geoscience Australia
Record 2001/37.
FRIEND C. R. L., NUTMAN A. P. &amp; MCGREGOR V. R. 1988. Late Archaean
terrane accretion in the Godthab region, southern West Greenland.
Nature 335, 535-538.
GOLEBY B. R., BELL B., KORSCH R. J., SORJONEN-WARD P., GROENEWALD
P. B., WYCHE S., BATEMAN R., FOMIN T., WITT W., WALSH J.,
DRUMMOND B. J. &amp; OWEN A. J. 2000. Crustal structure and fluid
flow in the Eastern Goldfields, Western Australia. results from
the AGCRCs Yilgarn Deep Seismic Reflection Survey and Fluid
Flow Modelling Projects. Australian Geological Survey Organisation
Record 2000/34.
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. &amp; 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).
KRAPEZ B., BROWN S. J. A., HAND J., BARLEY M. E. &amp; CAS R. A. F. 2000.
Age constraints on recycled crustal and supracrustal sources of
Archaean metasedimentary sequences, Eastern Goldfields
Province, Western Australia: evidence from SHRIMP zircon
dating. Tectonophysics 322, 89-133.
LEITCH A. M. 2001. Archaean plate tectonics and mantle overturn
models. In: Cassidy K. F., Dunphy J. M. &amp; Van Kranendonk M. J.
eds. Proceedings of the 4th International Archaean Symposium,
pp. 61-63. AGSO-Geoscience Australia Record 2001/37.
MACKEY T. E., MEIXNER A. J. &amp; MILLIGAN P. R. 2000. Magnetic Anomaly
Map of Western Australia (1:2 500 000 scale). Australian Geological
Survey Organisation, Canberra.
MATHUR S. P. 1974. Crustal structure in southwestern Australia from
seismic and gravity data. Tectonophysics 24, 151-182.
MURRAY A. S., MORSE M. P., MILLIGAN P. R. &amp; MACKEY T. E. 1997.
Gravity Anomaly Map of the Australian Region, Scale 1:5 000 000
(2nd edition). Australian Geological Survey Organisation,
Canberra.
MYERS J. S. 1993. Precambrian history of the West Australian craton
and adjacent orogens. Annual Review of Earth and Planetary
Sciences 21, 453-485.
MYERS J. S. 1997. Preface: Archaean geology of the Eastern Goldfields
of Western Australia-regional overview. Precambrian Research
83, 1-10.
MYERS J. S. &amp; HOCKING R. M. 1998. Geological Map of Western Australia,
1:2 500 000 (13th edition). Geological Survey of Western
Australian, Perth.
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.
OREILLY S. Y., GRIFFIN W. L., POUDJOM DJOMANI Y. H. &amp; MORGAN P.
2001. Are lithospheres forever? GSA Today, April, 4-10.
POUDJOM DJOMANI Y. H., OREILLY S. Y., GRIFFIN W. L. &amp; MORGAN P.
2001. The density structure of subcontinental lithosphere
through time. Earth and Planetary Science Letters 184, 605-621.
QIU Y. &amp; GROVES D. I. 1999. Late Archean collision and delamination
in the southwest Yilgarn craton: the driving force for Archean
orogenic lode gold mineralization? Economic Geology 94, 115-122.
READING A. M. &amp; 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, 439-445.
REY P. F., HOUSEMAN G., POUDJOM DJOMANI Y. H., GRIFFIN W. L. &amp;
OREILLY S. Y. 2001. The impact of body forces on Archaean
continental lithosphere. In: Cassidy K. F., Dunphy J. M. &amp; Van
Kranendonk M. J. eds. Proceedings of the 4th International
Archaean Symposium, pp. 84-85. AGSO-Geoscience Australia
Record 2001/37.
SAMBRIDGE M. S. 1999. Geophysical inversion with a neighbourhood
algorithm. I. Searching a parameter space. Geophysical Journal
International 138, 479-494.
SHIBUTANI T., SAMBRIDGE M. S. &amp; 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.
SYLVESTER P. J. 2001. Archaean magmatic record and crustal
evolution. In: Cassidy K. F., Dunphy J. M. &amp; Van Kranendonk M. J.
eds. Proceedings of the 4th International Archaean Symposium,
pp. 25-27. AGSO-Geoscience Australia Record 2001/37.
VAN DER HILST R. D., KENNETT B. L. N. &amp; SHIBUTANI T. 1998. Upper
mantle structure beneath australia from portable array deployments.
In: Braun J., Dooley J., Goleby B., van der Hilst R. &amp;
Klootwijk C. eds. Structure and evolution of the Australian
Continent, pp. 39-58. American Geophysical Union Geodynamics
Series 26.
VAN DER PLUIJM B. A., KUSKY T. M., CONDIE K. C. &amp; CONEY P. J. 1994.
Tectonic setting and terrane accretion in Precambrian orogens.
Tectonophysics 265, vii-ix.
WEINBERG R. F. 2001. Diapirism in the Western Australian Archaean.
In: Cassidy K. F., Dunphy J. M. &amp; Van Kranendonk M. J. eds.
Proceedings of the 4th International Archaean Symposium, p. 371.
AGSO-Geoscience Australia Record 2001/37.
WHITAKER A. J. 2001. Components and structure of the Yilgarn Craton,
as interpreted from aeromagnetic data. In: Proceedings of the 4th
International Archaean Symposium 24-28 September 2001, Perth,
Australia, pp. 536-537.
WHITAKER A. J. &amp; BASTRAKOVA I. V. 2002. Yilgarn Craton, Aeromagnetic
Interpretation 1:1 500 000 Scale Map (catalogue number 39935).
Geoscience Australia, Canberra.
WILDE S. A., MIDDLETON M. F. &amp; EVANS B. J. 1996. Terrane accretion in
the southwestern Yilgarn Craton: evidence from a deep seismic
crustal profile. Precambrian Research 78, 179-196.
WYMAN D. A. 2001. Mantle plume-subduction zone interaction: a
major Late Archaean crustal growth process. In: Proceedings of
the 4th International Archaean Symposium 24-28 September 2001,
Perth, Australia, pp. 211-213.
ZEGERS T. E. &amp; VAN KEKEN P. E. 2001. Middle Archean continent
formation by crustal delamination. Geology 29, 1083-1086." name="eprints.referencetext" />
<meta content="Reading, A.M. and Kennett, B.L.N. and Dentith, M.C. (2003) Seismic structure of the Yilgarn Craton, Western Australia. Australian Journal of Earth Sciences, 50 (3). pp. 427-438. ISSN 0812-0099" name="eprints.citation" />
<meta content="http://eprints.utas.edu.au/1586/1/Reading%2C_Kennett_et_al_2003.pdf" name="eprints.document_url" />
<link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" />
<meta content="Seismic structure of the Yilgarn Craton, Western Australia" name="DC.title" />
<meta content="Reading, A.M." name="DC.creator" />
<meta content="Kennett, B.L.N." name="DC.creator" />
<meta content="Dentith, M.C." name="DC.creator" />
<meta content="260100 Geology" name="DC.subject" />
<meta content="The deep crustal and upper mantle structure of the Yilgarn Craton is investigated in this study using receiver-function analysis of teleseismic earthquake records from temporary stations. Two lines of stations were deployed, the main transect ran between Perth and Kalgoorlie, and a second line of stations ran across the east Yilgarn Craton 200 km to the north of Kalgoorlie. The broadband
instrumentation records high-fidelity waveform data allowing the signal from the near-receiver
structure to be separated from the influence of the earthquake source. The nature of the crust and
upper mantle structure under each station is determined from seismic-velocity models that match the
observed receiver-function waveforms and the resulting coarse-scale transect provides new,
independent controls on the structure of the lithosphere. Mechanisms for the evolution of the Yilgarn
Craton, previously put forward to explain surface geological and geochemical observations, and
seismic velocity structure from reflection and refraction studies, may be classified as favouring: (i) predominantly
accretionary lithospheric evolution; (ii) mixed accretion and other influences; or (iii) no
accretionary-style influence. Characteristics of the deep seismic structure enable the evolutionary
mechanism to be inferred. From the teleseismic data, we find that the seismic Moho is sharp in
character under stations in the middle of the proposed terranes and more gradational near the
proposed terrane boundaries. The Moho dips gently eastward and the seismic velocity of the upper
mantle increases moving from west to east across the whole craton. An anomalous region exists under
the Southwest terrane that shows a thick high-velocity gradient zone at the base of the crust and a
Moho dipping to the west. The nature of the lateral heterogeneity in structure and its correspondence
with proposed terrane boundaries suggest that accretionary processes are significant in the evolution
of the Yilgarn Craton." name="DC.description" />
<meta content="2003-06" name="DC.date" />
<meta content="Article" name="DC.type" />
<meta content="PeerReviewed" name="DC.type" />
<meta content="application/pdf" name="DC.format" />
<meta content="http://eprints.utas.edu.au/1586/1/Reading%2C_Kennett_et_al_2003.pdf" name="DC.identifier" />
<meta content="http://dx.doi.org/10.1046/j.1440-0952.2003.01000.x" name="DC.relation" />
<meta content="Reading, A.M. and Kennett, B.L.N. and Dentith, M.C. (2003) Seismic structure of the Yilgarn Craton, Western Australia. Australian Journal of Earth Sciences, 50 (3). pp. 427-438. ISSN 0812-0099" name="DC.identifier" />
<meta content="http://eprints.utas.edu.au/1586/" name="DC.relation" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/BibTeX/epprod-eprint-1586.bib" title="BibTeX" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/ContextObject/epprod-eprint-1586.xml" title="OpenURL ContextObject" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/ContextObject::Dissertation/epprod-eprint-1586.xml" title="OpenURL Dissertation" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/ContextObject::Journal/epprod-eprint-1586.xml" title="OpenURL Journal" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/DC/epprod-eprint-1586.txt" title="Dublin Core" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/DIDL/epprod-eprint-1586.xml" title="DIDL" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/EndNote/epprod-eprint-1586.enw" title="EndNote" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/HTML/epprod-eprint-1586.html" title="HTML Citation" type="text/html; charset=utf-8" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/METS/epprod-eprint-1586.xml" title="METS" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/MODS/epprod-eprint-1586.xml" title="MODS" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/RIS/epprod-eprint-1586.ris" title="Reference Manager" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/Refer/epprod-eprint-1586.refer" title="Refer" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/Simple/epprod-eprint-1586text" title="Simple Metadata" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/Text/epprod-eprint-1586.txt" title="ASCII Citation" type="text/plain; charset=utf-8" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1586/XML/epprod-eprint-1586.xml" title="EP3 XML" type="text/xml" />
 
  </head>
  <body bgcolor="#ffffff" text="#000000" onLoad="loadRoutine(); MM_preloadImages('images/eprints/ePrints_banner_r5_c5_f2.gif','images/eprints/ePrints_banner_r5_c7_f2.gif','images/eprints/ePrints_banner_r5_c8_f2.gif','images/eprints/ePrints_banner_r5_c9_f2.gif','images/eprints/ePrints_banner_r5_c10_f2.gif','images/eprints/ePrints_banner_r5_c11_f2.gif','images/eprints/ePrints_banner_r6_c4_f2.gif')">
    
    <div class="ep_noprint"><noscript><style type="text/css">@import url(http://eprints.utas.edu.au/style/nojs.css);</style></noscript></div>
 
 
 
 
<table width="795" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td><script language="JavaScript1.2">mmLoadMenus();</script>
      <table border="0" cellpadding="0" cellspacing="0" width="795">
        <!-- fwtable fwsrc="eprints_banner_final2.png" fwbase="ePrints_banner.gif" fwstyle="Dreamweaver" fwdocid = "1249563342" fwnested="0" -->
        <tr>
          <td><img src="/images/eprints/spacer.gif" width="32" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="104" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="44" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="105" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="41" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="16" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="82" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="69" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="98" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="12"><img name="ePrints_banner_r1_c1" src="/images/eprints/ePrints_banner_r1_c1.gif" width="795" height="10" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="10" border="0" alt="" /></td>
        </tr>
        <tr>
          <td rowspan="6"><img name="ePrints_banner_r2_c1" src="/images/eprints/ePrints_banner_r2_c1.gif" width="32" height="118" border="0" alt="" /></td>
          <td rowspan="5"><a href="http://www.utas.edu.au/"><img name="ePrints_banner_r2_c2" src="/images/eprints/ePrints_banner_r2_c2.gif" width="104" height="103" border="0" alt="" /></a></td>
          <td colspan="10"><img name="ePrints_banner_r2_c3" src="/images/eprints/ePrints_banner_r2_c3.gif" width="659" height="41" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="41" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="3"><a href="http://eprints.utas.edu.au/"><img name="ePrints_banner_r3_c3" src="/images/eprints/ePrints_banner_r3_c3.gif" width="190" height="31" border="0" alt="" /></a></td>
          <td rowspan="2" colspan="7"><img name="ePrints_banner_r3_c6" src="/images/eprints/ePrints_banner_r3_c6.gif" width="469" height="37" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="31" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="3"><img name="ePrints_banner_r4_c3" src="/images/eprints/ePrints_banner_r4_c3.gif" width="190" height="6" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="6" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="2"><img name="ePrints_banner_r5_c3" src="/images/eprints/ePrints_banner_r5_c3.gif" width="149" height="1" border="0" alt="" /></td>
          <td rowspan="2" colspan="2"><a href="/information.html" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821132634_0,0,25,null,'ePrints_banner_r5_c5');MM_swapImage('ePrints_banner_r5_c5','','/images/eprints/ePrints_banner_r5_c5_f2.gif',1);"><img name="ePrints_banner_r5_c5" src="/images/eprints/ePrints_banner_r5_c5.gif" width="57" height="25" border="0" alt="About" /></a></td>
          <td rowspan="2"><a href="/view/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133021_1,0,25,null,'ePrints_banner_r5_c7');MM_swapImage('ePrints_banner_r5_c7','','/images/eprints/ePrints_banner_r5_c7_f2.gif',1);"><img name="ePrints_banner_r5_c7" src="/images/eprints/ePrints_banner_r5_c7.gif" width="68" height="25" border="0" alt="Browse" /></a></td>
          <td rowspan="2"><a href="/perl/search/simple" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133201_2,0,25,null,'ePrints_banner_r5_c8');MM_swapImage('ePrints_banner_r5_c8','','/images/eprints/ePrints_banner_r5_c8_f2.gif',1);"><img name="ePrints_banner_r5_c8" src="/images/eprints/ePrints_banner_r5_c8.gif" width="68" height="25" border="0" alt="Search" /></a></td>
          <td rowspan="2"><a href="/perl/register" onMouseOut="MM_swapImgRestore();MM_startTimeout();" onMouseOver="MM_showMenu(window.mm_menu_1018171924_3,0,25,null,'ePrints_banner_r5_c9');MM_swapImage('ePrints_banner_r5_c9','','/images/eprints/ePrints_banner_r5_c9_f2.gif',1);"><img name="ePrints_banner_r5_c9" src="/images/eprints/ePrints_banner_r5_c9.gif" width="68" height="25" border="0" alt="register" /></a></td>
          <td rowspan="2"><a href="/perl/users/home" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133422_4,0,25,null,'ePrints_banner_r5_c10');MM_swapImage('ePrints_banner_r5_c10','','/images/eprints/ePrints_banner_r5_c10_f2.gif',1);"><img name="ePrints_banner_r5_c10" src="/images/eprints/ePrints_banner_r5_c10.gif" width="82" height="25" border="0" alt="user area" /></a></td>
          <td rowspan="2"><a href="/help/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133514_5,0,25,null,'ePrints_banner_r5_c11');MM_swapImage('ePrints_banner_r5_c11','','/images/eprints/ePrints_banner_r5_c11_f2.gif',1);"><img name="ePrints_banner_r5_c11" src="/images/eprints/ePrints_banner_r5_c11.gif" width="69" height="25" border="0" alt="Help" /></a></td>
          <td rowspan="3" colspan="4"><img name="ePrints_banner_r5_c12" src="/images/eprints/ePrints_banner_r5_c12.gif" width="98" height="40" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
        </tr>
        <tr>
          <td rowspan="2"><img name="ePrints_banner_r6_c3" src="/images/eprints/ePrints_banner_r6_c3.gif" width="44" height="39" border="0" alt="ePrints home" /></td>
          <td><a href="/" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ePrints_banner_r6_c4','','/images/eprints/ePrints_banner_r6_c4_f2.gif',1);"><img name="ePrints_banner_r6_c4" src="/images/eprints/ePrints_banner_r6_c4.gif" width="105" height="24" border="0" alt="ePrints home" /></a></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="24" border="0" alt="" /></td>
        </tr>
        <tr>
          <td><img name="ePrints_banner_r7_c2" src="/images/eprints/ePrints_banner_r7_c2.gif" width="104" height="15" border="0" alt="" /></td>
          <td colspan="8"><img name="ePrints_banner_r7_c4" src="/images/eprints/ePrints_banner_r7_c4.gif" width="517" height="15" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="15" border="0" alt="" /></td>
        </tr>
      </table></td>
  </tr>
    <tr><td><table width="100%" style="font-size: 90%; border: solid 1px #ccc; padding: 3px"><tr>
      <td align="left"><a href="http://eprints.utas.edu.au/cgi/users/home">Login</a> | <a href="http://eprints.utas.edu.au/cgi/register">Create Account</a></td>
      <td align="right" style="white-space: nowrap">
        <form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/search" style="display:inline">
          <input class="ep_tm_searchbarbox" size="20" type="text" name="q" />
          <input class="ep_tm_searchbarbutton" value="Search" type="submit" name="_action_search" />
          <input type="hidden" name="_order" value="bytitle" />
          <input type="hidden" name="basic_srchtype" value="ALL" />
          <input type="hidden" name="_satisfyall" value="ALL" />
        </form>
      </td>
    </tr></table></td></tr>
  <tr>
    <td class="toplinks"><!-- InstanceBeginEditable name="content" -->
 
 
<div align="center">
  
  <table width="720" class="ep_tm_main"><tr><td align="left">
    <h1 class="ep_tm_pagetitle">Seismic structure of the Yilgarn Craton, Western Australia</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> and <span class="person_name">Dentith, M.C.</span> (2003) <xhtml:em>Seismic structure of the Yilgarn Craton, Western Australia.</xhtml:em> Australian Journal of Earth Sciences, 50 (3). pp. 427-438. 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/1586/1/Reading%2C_Kennett_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/1586/1/Reading%2C_Kennett_et_al_2003.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />2218Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input value="2053" 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.1440-0952.2003.01000.x">http://dx.doi.org/10.1046/j.1440-0952.2003.01000.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 deep crustal and upper mantle structure of the Yilgarn Craton is investigated in this study using receiver-function analysis of teleseismic earthquake records from temporary stations. Two lines of stations were deployed, the main transect ran between Perth and Kalgoorlie, and a second line of stations ran across the east Yilgarn Craton 200 km to the north of Kalgoorlie. The broadband&#13;
instrumentation records high-fidelity waveform data allowing the signal from the near-receiver&#13;
structure to be separated from the influence of the earthquake source. The nature of the crust and&#13;
upper mantle structure under each station is determined from seismic-velocity models that match the&#13;
observed receiver-function waveforms and the resulting coarse-scale transect provides new,&#13;
independent controls on the structure of the lithosphere. Mechanisms for the evolution of the Yilgarn&#13;
Craton, previously put forward to explain surface geological and geochemical observations, and&#13;
seismic velocity structure from reflection and refraction studies, may be classified as favouring: (i) predominantly&#13;
accretionary lithospheric evolution; (ii) mixed accretion and other influences; or (iii) no&#13;
accretionary-style influence. Characteristics of the deep seismic structure enable the evolutionary&#13;
mechanism to be inferred. From the teleseismic data, we find that the seismic Moho is sharp in&#13;
character under stations in the middle of the proposed terranes and more gradational near the&#13;
proposed terrane boundaries. The Moho dips gently eastward and the seismic velocity of the upper&#13;
mantle increases moving from west to east across the whole craton. An anomalous region exists under&#13;
the Southwest terrane that shows a thick high-velocity gradient zone at the base of the crust and a&#13;
Moho dipping to the west. The nature of the lateral heterogeneity in structure and its correspondence&#13;
with proposed terrane boundaries suggest that accretionary processes are significant in the evolution&#13;
of the Yilgarn Craton.</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">receiver function, seismic structure, tectonics, 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 &gt; 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">1586</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=1586;">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&amp;eprintid=1586">item control page</a></p>
  </td></tr></table>
</div>
 
 
 
    <!-- InstanceEndEditable --></td>
  </tr>
  <tr>
    <td><!-- #BeginLibraryItem "/Library/footer_eprints.lbi" -->
    <table width="795" border="0" align="left" cellpadding="0" class="footer">
  <tr valign="top">
<td colspan="2"><div align="center"><a href="http://www.utas.edu.au">UTAS home</a> | <a href="http://www.utas.edu.au/library/">Library home</a> | <a href="/">ePrints home</a> | <a href="/contact.html">contact</a> | <a href="/information.html">about</a> | <a href="/view/">browse</a> | <a href="/perl/search/simple">search</a> | <a href="/perl/register">register</a> | <a href="/perl/users/home">user area</a> | <a href="/help/">help</a></div><br /></td>
</tr>
<tr><td colspan="2"><p><img src="/images/eprints/footerline.gif" width="100%" height="4" /></p></td></tr>
      <tr valign="top">
        <td width="68%" class="footer">Authorised by the University Librarian<br />
© University of Tasmania ABN 30 764 374 782<br />
      <a href="http://www.utas.edu.au/cricos/">CRICOS Provider Code 00586B</a> | <a href="http://www.utas.edu.au/copyright/copyright_disclaimers.html">Copyright &amp; Disclaimers</a> | <a href="http://www.utas.edu.au/accessibility/index.html">Accessibility</a> | <a href="http://eprints.utas.edu.au/feedback/">Site Feedback</a>  </td>
        <td width="32%"><div align="right">
            <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><img src="http://www.utas.edu.au/shared/logos/unioftasstrip.gif" alt="University of Tasmania Home Page" width="260" height="16" border="0" align="right" /></a></p>
            <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><br />
            </a></p>
        </div></td>
      </tr>
      <tr valign="top">
        <td><p>  </p></td>
        <td><div align="right"><span class="NoPrint"><a href="http://www.eprints.org/software/"><img src="/images/eprintslogo.gif" alt="ePrints logo" width="77" height="29" border="0" align="bottom" /></a></span></div></td>
      </tr>
    </table>
    <!-- #EndLibraryItem -->
    <div align="center"></div></td>
  </tr>
</table>
 
  </body>
</html>