Seismic Data seismic survey
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Processed seismic data (SEG-Y format) and TIFF images for the Gawler line acquired as part of the 2008 Curnamona-Gawler-Arrowie Deep Crustal Seismic Survey (L189), acquired by Geoscience Australia (GA) under the Onshore Energy Security Program (OESP). Stack and migrated data for line 08GA-G1 as well as CDP coordinates and gravity data. The Gawler line aimed to investiage the southern Gawler Province. It crosses over the Eyre Peninsula in an east -west direction and is 253km long. Raw data for this survey are available on request from clientservices@ga.gov.au
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Processed seismic data (SEG-Y format) and TIFF images for the 2009 Southern Delamerian Seismic Survey (L193) acquied by Geoscience Australia, in conjunction with AuScope, Victoria Department of Primary Industries, and Primary Industries and Resources, SA (PIRSA). Stack and migrated data are included for lines 09GA-SD1 and 09GA-SD2, as well as CDP coordinates. Raw data for this survey are available on request from clientservices@ga.gov.au
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Processed seismic data (SEG-Y format) and TIFF images for the Gawler-Officer-Musgrave-Amadeus (GOMA) Deep Crustal Seismic survey (L190) acquired by Geoscience Australia (GA) in collaboration with AuScope and Primary Industries and Resources South Australia (PIRSA). Stack and migrated data for line 09GA-OM1 as well as CDP coordinates data. This 634 line km traverse follows the Alice Springs to Adelaide railway line begining near Erldunda in the Northern Territory and finishing near Tarcoola in South Australia. Raw data for this survey are available on request from clientservices@ga.gov.au
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Processed Stacked and Migrated SEG-Y seismic data and section images for the Georgina - Arunta Deep Crustal Seismic Survey. This survey was primarily funded through the Onshore Energy Security Program and was acquired in collaboration the Northern Territory Geological Survey. The objectives of the survey were to image the Georgina and Amadeus basins to enhance the knowledge of their petroleum prospectivity, and to investigate the uranium potential of the Arunta Inlier. Raw data for this survey are available on request from clientservices@ga.gov.au
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Processed Stacked and Migrated SEG-Y seismic data and section images for the Southern Carnarvon Deep Crustal Seismic Survey. This survey was conducted under a National Geoscience Agreement with the Western Australia Geological Survey. Funding was through the Onshore Energy Security Program. The objective of the survey was to image the Byro Sub-basin of the onshore Carnarvon Basin. Data are supplied as SEG-Y files and PDF images. Raw data for this survey are available on request from clientservices@ga.gov.au
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Processed Stacked and Migrated SEG-Y seismic data and uninterpreted and interpreted section images for the Capricorn Deep Crustal Seismic Survey. This survey was a collaborative ANSIR project between AuScope, the Geological Survey of Western Australia and Geoscience Australia. Funding was through AuScope and the Western Australian Government royalites for Regions Exploration Incentive Scheme. The objectives of the survey were use deep seismic profiling to improve the understanding of the Western Australian continent by imaging the subsurface extent of Archean crust beneath the Capricorn Orogen and determining whether the Pilbara and Yilgarn Cratons are in direct contact or separated by one of more elements of Proterozoic crust. Raw data for this survey are available on request from clientservices@ga.gov.au
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Geoscience Australia conducted the Yilgarn-Officer-Musgrave 2D Seismic Survey. The survey involves the acquisition of seismic reflection over the Yilgarn Craton, Officer Basin and Musgrave Province of Western Australia. The survey consisted of one line, totalling 484.2 kms. The project is a collaborative project between Geoscience Australia and the Geological Survey of Western Australia and is part of the ongoing cooperation under the National Geoscience Agreement (NGA). Funding of this project is through the Western Australian Government's Royalties for Regions Exploration Incentive Scheme and Geoscience Australia's Onshore Energy Security Program. The primary objective of the project is to image the western Officer Basin, one of the Australia's underexplored sedimentary basins. In addition this survey will gather new data to improve the understanding of the Yilgarn Craton and its boundary with the Musgrave Province. Raw data for this survey are available on request from clientservices@ga.gov.au
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A ~400 km long deep crustal reflection seismic survey was acquired in central Victoria, Australia, in 2006. It has provided information on crustal architecture across the western Lachlan Orogen and has greatly added to the understanding of the tectonic evolution. The east-dipping Moyston Fault is confirmed as the suture between the Delamerian and western Lachlan Orogens, and is shown to extend down to the Moho. The Avoca Fault, the boundary between the Stawell and Bendigo Zones, is a west-dipping listric reverse fault that intersects the Moyston Fault at a depth of about 22 km, forming a V-shaped geometry. Both the Stawell and Bendigo Zones can be divided broadly into a lower crustal region of interlayered and imbricated metavolcanic and metasedimentary rocks and an upper crustal region of tightly folded metasedimentary rocks. The Stawell Zone was probably part of a Cambrian accretionary system along the eastern Gondwanaland margin, and mafic rocks may have been partly consumed by Cambrian subduction. Much of the Early Cambrian oceanic crust beneath the Bendigo Zone was not subducted, and is preserved as a crustal-scale imbricate thrust stack. The seismic data have shown that a thin-skinned structural model appears to be valid for much of the Melbourne Zone, whereas the Stawell and Bendigo Zones have a thick-skinned structural style. Internal faults in the Stawell and Bendigo Zones are mostly west-dipping listric faults, which extend from the surface to near the base of the crust. The Heathcote Fault Zone, the boundary between the Bendigo and Melbourne Zones, extends to at least 20 km, and possibly to the Moho. A striking feature in the seismic data is the markedly different seismic character of the mid to lower crust of the Melbourne Zone. The deep seismic reflection data for the Melbourne Zone have revealed a multilayered crustal structure that supports the Selwyn Block model. Raw data for this survey are available on request from clientservices@ga.gov.au
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<p>Geoscience Australia conducted equipment tests at Millmerran, Queensland, using the newly acquired Sercel SN368 data acquisition seismic system. The equipment operated satisfactorily and proved to be versatile.<p><b>Raw data for this survey are available on request from clientservices@ga.gov.au - Quote eCat# 74967</b>
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<p>Geoscience Australia conducted a seismic reflection, seismic crustal refraction and gravity survey in southeastern Queenland from August to November 1986. The primary objective of the survey was to complete seismic reflection coverage in the Dalby-Toowoomba area between Traverse 14 and Traverse 16 recorded during the BMR S.E. Queensland seismic survey in 1984. Secondary objectives, subject to survey progress included recording additional seismic reflection data east of Traverse 16 (1984). Overall the survey objectives would allow the completion of a continuous deep crustal seismic reflection profile of 1110 km length across southern Queensland, the basis of a lithospheric transect study in the southern region of Queensland. The survey obtained a total of 181 km of six-sixteen fold Common-Middle-Point (CMP) seismic reflection data in the Beenleigh, Darling Downs and Mitchell areas, using the Sercel SN368 seismic acquisition system.<p><b>Raw data for this survey are available on request from clientservices@ga.gov.au - Quote eCat# 74962</b>