Product catalogue
A Marine Survey to Investigate Seal Integrity Between Potential CO2 Storage Reservoirs and Seafloor in the Caswell Sub-basin, Browse Basin, Western Australia: GA0345/GA0346/TAN1411 - Post-survey Report
Geoscience Australia (GA) conducted a marine survey (GA0345/GA0346/TAN1411) of the north-eastern Browse Basin (Caswell Sub-basin) between 9 October and 9 November 2014 to acquire seabed and shallow geological information to support an assessment of the CO2 storage potential of the basin. The survey, undertaken as part of the Department of Industry and Science's National CO2 Infrastructure Plan (NCIP), aimed to identify and characterise indicators of natural hydrocarbon or fluid seepage that may indicate compromised seal integrity in the region.
The survey was conducted in three legs aboard the New Zealand research vessel RV Tangaroa, and included scientists and technical staff from GA, the NZ National Institute of Water and Atmospheric Research Ltd. (NIWA) and Fugro Survey Pty Ltd. Shipboard data (survey ID GA0345) collected included multibeam sonar bathymetry and backscatter over 12 areas (A1, A2, A3, A4, A6b, A7, A8, B1, C1, C2b, F1, M1) totalling 455 km2 in water depths ranging from 90 - 430 m, and 611 km of sub-bottom profile lines. Seabed samples were collected from 48 stations and included 99 Smith-McIntyre grabs and 41 piston cores. An Autonomous Underwater Vehicle (AUV) (survey ID GA0346) collected higher-resolution multibeam sonar bathymetry and backscatter data, totalling 7.7 km2, along with 71 line km of side scan sonar, underwater camera and sub-bottom profile data. Twenty two Remotely Operated Vehicle (ROV) missions collected 31 hours of underwater video, 657 still images, eight grabs and one core.
Shipboard and AUV multibeam bathymetry and sub-bottom profiler data indicated the presence of recently active faults in the area, some with significant seafloor surface expression (i.e. fault scarps with up to 40m offset). Some of these faults were visually inspected by the ROV which also confirmed the presence of diverse biological communities. Possible indications of shallow gas were observed on sub-bottom profiles, including amplitude anomalies, cross-cutting reflectors and zones of signal starvation. Water column observations including sidescan sonar, single-beam and multibeam echosounders, underwater video and photography did not conclusively identify hydrocarbon or other fluid seepage. Strong currents encountered during parts of the survey may have interfered with the direct detection of seeps in the water column. While no active signs of seepage were observed, the geochemical and biological sampling undertaken will aid in baseline environmental investigations for this region.
The data collected during the survey are available for free download from the Geoscience Australia website.
Simple
Identification info
- Date (Creation)
- 2016-01-01T00:00:00
- Date (Publication)
- 2016-06-03T14:00:00
- Date (Revision)
- 2019-04-04T23:39:01
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/83199
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/Record.2016.005
- Cited responsible party
-
Role Organisation / Individual Name Details Publisher Geoscience Australia
Canberra Author Howard, F.J.F.
1 Author Nicholson, C.
2 Author Bernardel, G.
3 Author Carroll, A.
4 Author Hackney, R.
5 Author Lech, M.
6 Author Melrose, R.
7 Author Nichol, S.
8 Author Picard, K.
9 Author Rollet, N
10 Author Romeyn, R.P.
11 Author Siwabessy, P.J.W.
12 Author Trafford, J.
13
- Name
-
Record
- Issue identification
-
2016/005
- Point of contact
-
Role Organisation / Individual Name Details Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Carroll, A.
Place and Communities Internal Contact
- Topic category
-
- Oceans
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Keywords
-
-
GA Publication
-
Record
-
- Theme
-
-
marine survey
-
- Theme
-
-
marine environmental baselines
-
- Theme
-
-
bathymetry
-
- Theme
-
-
Exclusive Economic Zone
-
- Theme
-
-
geological storage of CO2
-
- Theme
-
-
marine
-
- Keywords
-
-
Australian EEZ
-
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
-
Marine Geoscience
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 InternationalLicence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Caswell Sub-basin - Browse Basin CO2 data package
Caswell Sub-basin - Browse Basin CO2 data package
- OnLine resource
-
Download the record (pdf)
Download the record (pdf)
- OnLine resource
-
Download the record (docx)
Download the record (docx)
- OnLine resource
-
Download Appendix A (pdf)
Download Appendix A (pdf)
- OnLine resource
-
Download Appendix B (pdf)
Download Appendix B (pdf)
Resource lineage
- Statement
-
Version 1
- Hierarchy level
- Non geographic dataset
- Other
-
GA Publication
- Description
-
Datasets collected in WGS84 UTM 51 S, extent indicator for the metadata record however is in GDA94 to be consistent with other national scale metadata records.
Extent
Reference System Information
- Reference system identifier
- EPSG/WGS 84 / UTM zone 51S (EPSG:32751)
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/146eda9d-9c48-8c70-e053-10a3070af5e1
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Carroll, A.
Place and Communities Internal Contact
Type of resource
- Resource scope
- Document
- Name
-
GA Record
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/83199
- Date info (Revision)
- 2018-04-22T08:36:14
- Date info (Creation)
- 2015-04-24T00:00:00
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551