Authors / CoAuthors
Siwabessy, J.
Abstract
Geoscience Australia undertook a marine survey of the Vlaming Sub-basin in March and April 2012 to provide seabed and shallow geological information to support an assessment of the CO2 storage potential of this sedimentary basin. The survey was undertaken under the Australian Government's National CO2 Infrastructure Plan (NCIP) to help identify sites suitable for the long term storage of CO2 within reasonable distances of major sources of CO2 emissions. The Vlaming Sub-basin is located offshore from Perth, Western Australia, and was previously identified by the Carbon Storage Taskforce (2009) as potentially highly suitable for CO2 storage. The principal aim of the Vlaming Sub-basin marine survey (GA survey number GA334) was to look for evidence of any past or current gas or fluid seepage at the seabed, and to determine whether these features are related to structures (e.g. faults) in the Vlaming Sub-basin that may extend up to the seabed. The survey also mapped seabed habitats and biota in the areas of interest to provide information on communities and biophysical features that may be associated with seepage. This research addresses key questions on the potential for containment of CO2 in the Early Cretaceous Gage Sandstone (the basin's proposed CO2 storage unit) and the regional integrity of the South Perth Shale (the seal unit that overlies the Gage Sandstone). This dataset comprises sidescan grids.
Product Type
dataset
eCat Id
82976
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Digital Object Identifier
Keywords
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- Marine DataSidescan Grid
- ( Theme )
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- sidescan grid
- ( Theme )
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- continental shelf
- ( Theme )
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- environmental
- ( Theme )
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- marine environmental baselines
- ( Theme )
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- marine survey
- ( Theme )
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- marine
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- WA
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Environmental Sciences
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- Published_External
Publication Date
2013-01-01T00:00:00
Creation Date
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
Unknown
Parent Information
Extents
[-32.35, -31.79, 115.24, 115.74]
Reference System
Spatial Resolution
Service Information
Associations
Downloads and Links
Source Information
The sidescan was acquired by the following survey: - Processing software: CARIS HIPS & SIPS v7.1 SP2 - Survey Name: GA-0334 Vlaming Sub-Basin Marine Environmental Survey, GP1373 - Vessel Name: RV Southern Supporter - Institution: Geoscience Australia - Country: Australia - Operator: FUGRO - Multibeam system: EdgeTech 4200FS dual (100 & 400 kHz) - Year of installation: Unknown - Nominal sonar frequency: dual 100 & 400 kHz - Vessel speed: 7 - 8 knots - Start Date: 17/03/2012 - End Date: 20/04/2012 - Start Port: Fremantle - End Port: Fremantle - Number of survey areas: 3 - Number of grids: 6 (3 LF(100kHz) grids and 3 HF(400kHz) grids ) - Total surface coverage: 6.65 Km2 - Vertical Datum: MSL - Horizontal Datum: WGS84-50S - Survey leaders: George Bernardel - Data acquired and processed by: Fugro, Justy Siwabessy - Grids resolution: 25cm - This dataset consist of the following files: + Georeferenced colour tif image in 25cm resolution, shaded with sun azimuth 45 degrees + ESRI ascii (*.asc) in 25cm resolution + ASCII xyz (*.txt) in 25cm resolution + ESRI Raster in 25cm resolution + KMZ file 115.24 115.74 -32.35 -31.79