Data

Processed sub-bottom profiler data - Seabed environments and shallow geology of the Vlaming Sub-basin, offshore Perth Basin (GA0334)

Geoscience Australia
Nicholas, W.A.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/83724&rft.title=Processed sub-bottom profiler data - Seabed environments and shallow geology of the Vlaming Sub-basin, offshore Perth Basin (GA0334)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/83724&rft.publisher=Geoscience Australia&rft.description=In March and April, 2012, Geoscience Australia undertook a seabed characterisation survey, aimed at supporting the assessment of CO2 storage potential of the Vlaming Sub-basin, Western Australia (Survey GA0334). The survey, undertaken as part of the National CO2 Infrastructure Plan program was targeted to provide an understanding of the link between the deep geological features of the area and the seabed, and connectivity between them as possible evidence for seal integrity. Data was acquired in two sections of the Rottnest Shelf lying above the regional seal - the South Perth Shale - and the underlying potentially CO2-suitable reservoir, the Gage Sandstone. Seabed samples were taken from 43 stations, and included 89 seabed grab samples. A total of 653 km2 of multibeam and backscatter data was obtained. Chirper shallow sub-bottom profile data was acquired concurrently. 6.65 km2 of side-scan sonar imagery was also obtained. The two surveyed areas, (Area 1 and Area 2), are set within a shallow sediment starved shelf setting. Area 2, situated to the southwest of Rottnest Island, is characterised by coralline red algal (rhodolith) beds, with ridges and mounds having significant rhodolith accumulations. The geomorphic expression of structural discontinuities outcropping at the seabed is evident by the presence of linear fault-like structures notable in Area 1, and north-south trending lineaments in Area 2. North-south trending structural lineaments on the outer section of Area 2 have in places, mounds standing 4-5 m above the seafloor in water depths of 80-85 m. This dataset, aquired by Fugro Pty Ltd, comprises sub-bottom profiles processed as shallow, high-resolution acoustic data (SEG-Y format) and navigation files (P190).Maintenance and Update Frequency: unknownStatement: The processed version of the supplied data is the equivalent raw version (i.e. direct recorded data) with some minor gain control and filtering applied for visual analysis.&rft.creator=Nicholas, W.A. &rft.date=2015&rft.coverage=westlimit=115; southlimit=-33.0; eastlimit=116; northlimit=-31.0&rft.coverage=westlimit=115; southlimit=-33.0; eastlimit=116; northlimit=-31.0&rft_rights=&rft_rights=Creative Commons Attribution-NonCommercial 4.0 International Licence&rft_rights=CC-BY-NC&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution-NonCommercial 4.0 International Licence http://creativecommons.org/licenses/by-nc/4.0&rft_subject=geoscientificInformation&rft_subject=Marine Data&rft_subject=Sub bottom profiles&rft_subject=EARTH SCIENCES&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution-NonCommercial 4.0 International Licence

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WWW:LINK-1.0-http--link

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Contact Information

clientservices@ga.gov.au

Brief description

In March and April, 2012, Geoscience Australia undertook a seabed characterisation survey, aimed at supporting the assessment of CO2 storage potential of the Vlaming Sub-basin, Western Australia (Survey GA0334). The survey, undertaken as part of the National CO2 Infrastructure Plan program was targeted to provide an understanding of the link between the deep geological features of the area and the seabed, and connectivity between them as possible evidence for seal integrity. Data was acquired in two sections of the Rottnest Shelf lying above the regional seal - the South Perth Shale - and the underlying potentially CO2-suitable reservoir, the Gage Sandstone. Seabed samples were taken from 43 stations, and included 89 seabed grab samples.

A total of 653 km2 of multibeam and backscatter data was obtained. Chirper shallow sub-bottom profile data was acquired concurrently. 6.65 km2 of side-scan sonar imagery was also obtained. The two surveyed areas, (Area 1 and Area 2), are set within a shallow sediment starved shelf setting. Area 2, situated to the southwest of Rottnest Island, is characterised by coralline red algal (rhodolith) beds, with ridges and mounds having significant rhodolith accumulations. The geomorphic expression of structural discontinuities outcropping at the seabed is evident by the presence of linear fault-like structures notable in Area 1, and north-south trending lineaments in Area 2. North-south trending structural lineaments on the outer section of Area 2 have in places, mounds standing 4-5 m above the seafloor in water depths of 80-85 m.

This dataset, aquired by Fugro Pty Ltd, comprises sub-bottom profiles processed as shallow, high-resolution acoustic data (SEG-Y format) and navigation files (P190).

Lineage

Maintenance and Update Frequency: unknown
Statement: The processed version of the supplied data is the equivalent raw version (i.e. direct recorded data) with some minor gain control and filtering applied for visual analysis.

Issued: 2015

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116,-31 116,-33 115,-33 115,-31 116,-31

115.5,-32

text: westlimit=115; southlimit=-33.0; eastlimit=116; northlimit=-31.0

Subjects
Earth Sciences | Marine Data | Published_External | Sub bottom profiles | geoscientificInformation |

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Other Information
Link to Underwater video footage from the Vlaming Sub-basin (GA334) (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/74276

Link to Seabed Environments and Shallow Geology of the Vlaming Sub-Basin, Western Australia - Supporting Investigation for Geological Storage of CO2 GA334 Marine Environmental Survey Post-Survey Report (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/74626

Link to GA0334 Vlaming sub-basin Species identification of worms from grab (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/76463

Link to Vlaming Sub-Basin Marine Environmental Survey (GA-0334/S. Supporter GP1373)(NCIP Program) - High Resolution Bathymetry grids (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/78540

Link to Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Chlorin analyses of seabed sediments. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/78550

Link to Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Inorganic elements of seabed sediments. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/78551

Link to Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Bulk organic carbon and nitrogen isotopes and concentrations in seabed sediments. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/78552

Link to Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Sediment oxygen demand of seabed sediments. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/78553

Link to Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Chlorophyll a, b and c of seabed sediments. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/78564

Link to Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: %carbonate and specific surface area of seabed sediments. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/78565

Link to Seabed Environments and shallow sub-surface geology of the Vlaming Sub-basin, offshore Perth Basin: Summary results from marine survey GA0334 (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/78846

Link to Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Grain size and carbonate concentrations of seabed sediment. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/79176

Link to An Integrated Study of the CO2 Storage Potential in the Offshore Vlaming Sub-Basin: Results of the study undertaken as part of the NCIP program (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/79332

Link to Ecology / Infaunal morphospecies identifications from the Vlaming Sub-basin (GA0334) (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/79345

Link to Predicted seabed gravel, mud and sand content in the Vlaming sub-basin in the Australian continental EEZ 2013 (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/79352

Link to Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia - interpreted geomorphic map. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/79578

Link to Vlaming Sub-Basin Marine Environmental Survey (GA-0334/S. Supporter GP1373)(NCIP Program) - High Resolution Backscatter grids (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/82975

Link to Vlaming Sub-Basin Marine Environmental Survey (GA-0334/S. Supporter GP1373)(NCIP Program) - Sidescan grids (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/82976

Link to Data and information on seabed environments of the Vlaming sub-basin, Western Australia. (Related Product)

uri : https://pid.geoscience.gov.au/dataset/ga/79348

Download the data Part 7 of 7 (File download)

uri : https://d28rz98at9flks.cloudfront.net/83724/North_Site.zip

Download the data Part 1 of 7 (File download)

uri : https://d28rz98at9flks.cloudfront.net/83724/South_Site_part_1.zip

Download the data Part 2 of 7 (File download)

uri : https://d28rz98at9flks.cloudfront.net/83724/South_Site_part_2.zip

Download the data Part 6 of 7 (File download)

uri : https://d28rz98at9flks.cloudfront.net/83724/South_Site_part_6.zip

Download the data Part 4 of 7 (File download)

uri : https://d28rz98at9flks.cloudfront.net/83724/South_Site_part_4.zip

Download the data Part 5 of 7 (File download)

uri : https://d28rz98at9flks.cloudfront.net/83724/South_Site_part_5.zip

Download the data Part 3 of 7 (File download)

uri : https://d28rz98at9flks.cloudfront.net/83724/South_Site_part_3.zip

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