Data

Data package - Seabed environments and shallow geology of the Leveque Shelf, Browse Basin, Western Australia.

Australian Ocean Data Network
Picard, K. ; Bernardel, G. ; Carroll, A.G. ; Hashimoto, T. ; 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/83727&rft.title=Data package - Seabed environments and shallow geology of the Leveque Shelf, Browse Basin, Western Australia.&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/83727&rft.publisher=Geoscience Australia&rft.description=In May 2013, Geoscience Australia (GA) and the Australian Institute of Marine Science (AIMS) undertook a collaborative seabed mapping survey (GA0340/ SOL5754) on the Leveque Shelf, a distinct geological province within the Browse Basin, offshore Western Australia. The purpose of the survey was to acquire geophysical and biophysical data on seabed environments over a previously identified potential CO2 injection site to better understand the overlying seabed habitats and to assess potential for fluid migration to the seabed. Mapping and sampling was undertaken across six areas using multibeam and single beam echosounders, sub-bottom profilers, sidescan sonar, underwater towed-video, gas sensors, water column profiler, grab samplers, and vibrocorer. Over 1070 km2 of seabed and water column was mapped using the multibeam and single beam echosounder, in water depths ranging between 40 and 120 m. The sub-surface was investigated using the multichannel and the parametric sub-bottom profilers along lines totalling 730 km and 1547 km in length respectively. Specific seabed features were investigated over 44 line km using the sidescan sonar and physically and sampled at 58 stations. Integration of this newly acquired data with existing seismic data will provide new insights into the geology of the Leveque Shelf. This work will contribute to the Australian Government's National CO2 Infrastructure Plan (NCIP) by providing key seabed environmental and geological data to better inform the assessment of the CO2 storage potential in this area of the Browse Basin. This data package brings together a suite of datasets which describe the seabed environments and shallow geology of the Leveque Shelf, Browse Basin.Maintenance and Update Frequency: asNeededStatement: These datasets have all been published on an individual basis. Consult the catalogue reference numbers for lineage information and authorship.&rft.creator=Picard, K. &rft.creator=Bernardel, G. &rft.creator=Carroll, A.G. &rft.creator=Hashimoto, T. &rft.creator=Nicholas, W.A. &rft.date=2015&rft.coverage=westlimit=117.5; southlimit=-20.72; eastlimit=126; northlimit=-11.51&rft.coverage=westlimit=117.5; southlimit=-20.72; eastlimit=126; northlimit=-11.51&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&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 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=Data Package&rft_subject=Bathymetry&rft_subject=marine environmental baselines&rft_subject=geochemistry&rft_subject=sedimentology&rft_subject=marine biodiversity&rft_subject=Marine Geoscience&rft_subject=EARTH SCIENCES&rft_subject=GEOLOGY&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Contact Information

clientservices@ga.gov.au

Brief description

In May 2013, Geoscience Australia (GA) and the Australian Institute of Marine Science (AIMS) undertook a collaborative seabed mapping survey (GA0340/ SOL5754) on the Leveque Shelf, a distinct geological province within the Browse Basin, offshore Western Australia. The purpose of the survey was to acquire geophysical and biophysical data on seabed environments over a previously identified potential CO2 injection site to better understand the overlying seabed habitats and to assess potential for fluid migration to the seabed.

Mapping and sampling was undertaken across six areas using multibeam and single beam echosounders, sub-bottom profilers, sidescan sonar, underwater towed-video, gas sensors, water column profiler, grab samplers, and vibrocorer. Over 1070 km2 of seabed and water column was mapped using the multibeam and single beam echosounder, in water depths ranging between 40 and 120 m. The sub-surface was investigated using the multichannel and the parametric sub-bottom profilers along lines totalling 730 km and 1547 km in length respectively. Specific seabed features were investigated over 44 line km using the sidescan sonar and physically and sampled at 58 stations. Integration of this newly acquired data with existing seismic data will provide new insights into the geology of the Leveque Shelf. This work will contribute to the Australian Government's National CO2 Infrastructure Plan (NCIP) by providing key seabed environmental and geological data to better inform the assessment of the CO2 storage potential in this area of the Browse Basin.

This data package brings together a suite of datasets which describe the seabed environments and shallow geology of the Leveque Shelf, Browse Basin.

Lineage

Maintenance and Update Frequency: asNeeded
Statement: These datasets have all been published on an individual basis. Consult the catalogue reference numbers for lineage information and authorship.

Created: 2015

Issued: 12 12 2016

Modified: 08 04 2019

This dataset is part of a larger collection

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126,-11.51 126,-20.72 117.5,-20.72 117.5,-11.51 126,-11.51

121.75,-16.115

text: westlimit=117.5; southlimit=-20.72; eastlimit=126; northlimit=-11.51

Subjects
Bathymetry | Data Package | Earth Sciences | Geology | Marine Geoscience | Published_External | geochemistry | geoscientificInformation | marine biodiversity | marine environmental baselines | sedimentology |

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Other Information
%Carbonate and specific surface area of seabed sediments

uri : https://pid.geoscience.gov.au/dataset/ga/78825

Chlorophyll a b and c and phaeophytin a of seabed sediments

uri : https://pid.geoscience.gov.au/dataset/ga/78818

High Resolution Bathymetry Grids

uri : https://pid.geoscience.gov.au/dataset/ga/79576

High Resolution Multibeam Acoustic Backscatter Grids

uri : https://pid.geoscience.gov.au/dataset/ga/79033

Interpreted geomorphic map

uri : https://pid.geoscience.gov.au/dataset/ga/81956

Major and trace elements in seabed sediments

uri : https://pid.geoscience.gov.au/dataset/ga/78820

Oxygen uptake and CO2 release from seabed sediments based on core incubation experiments

uri : https://pid.geoscience.gov.au/dataset/ga/78819

Porosity measurements on seabed sediments

uri : https://pid.geoscience.gov.au/dataset/ga/78827

Processed multichannel sub bottom profiler data

uri : https://pid.geoscience.gov.au/dataset/ga/78880

Seabed gravel mud and sand content

uri : https://pid.geoscience.gov.au/dataset/ga/82527

Seabed sediment grainsize by sieve measurement

uri : https://pid.geoscience.gov.au/dataset/ga/83638

Seabed sediment laser measured grainsize data

uri : https://pid.geoscience.gov.au/dataset/ga/83637

SOL5754 (GA0340) Post Survey Report

uri : https://pid.geoscience.gov.au/dataset/ga/78749

Species identification of worms from grabs

uri : https://pid.geoscience.gov.au/dataset/ga/83720

Total chlorin concentrations and chlorin indices from seafloor sediments

uri : https://pid.geoscience.gov.au/dataset/ga/78817

Total organic carbon (TOC) and total nitrogen concentrations and isotopes of seabed sediments

uri : https://pid.geoscience.gov.au/dataset/ga/78965

Total sediment metabolism and porewater pH and salinity of seabed sediments

uri : https://pid.geoscience.gov.au/dataset/ga/78824

Underwater video and still images

uri : https://pid.geoscience.gov.au/dataset/ga/77504

Identifiers
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