pmd*CRC
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An orogenic cycle typically follows a sequence of events or stages. These are basin formation and magmatism during extension, inversion and crustal thickening during contractional orogenesis, and finally extensional collapse of the orogen. The Archaean granite-greenstone terranes of the Eastern Yilgarn Craton (EYC) record a major deviation in this sequence of events. Within the overall contractional stage, the EYC underwent a lithospheric-scale extensional event between 2665 Ma and 2655 Ma, resulting in changes to the entire orogenic system. These changes associated with regional extension include: the crustal architecture; greenstone stratigraphy; granite magmatism; thermo-barometry (PTt paths); and structure. Synchronous with these changes was the deposition of the first significant gold, and it is likely that the intra-orogenic extensional event was one of the critical factors in the region's world-class gold endowment.
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Barlow, M., 2004a. Yilgarn constrained gravity inversion. pmd*CRC internal report
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Application of seismic techniques for imaging of lithospheric architecture presented at the final Y2 meeting in Perth, December 2004.
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Fomin, T., 2004. Models of the upper crust from wide-angle and reflection studies, Northeast Yilgarn: Why we need both. Predictive Mineral Discovery Cooperative Research Centre, Barossa Conference - Poster.
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Receiver function results produced as part of the pmd*CRC Y2 tomography investigations of the Yilgarn Craton. Appendix4-3_RecFn_Results.pdf
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PDF of a PowerPoint presentation presented at the 2004 Society of Economic Geologists meeting, Perth, September, 2004.
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A talk on `Application of seismic techniques for imaging of lithospheric architecture presented at the final Y2 wrap-up meeting, Perth, December, 2004.
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A talk on `Lithospheric Geodynamics: a seismic view of the Yilgarn Craton presented at the final Y2 wrap-up meeting, Perth, December, 2004.
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A PowerPoint presentation showing chalcophile and other trace element distributions throughout the EYC
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Original figures for chalcophile variations along seismic traverse EGF01 and for regional variation