Caswell Sub-basin, Browse Basin CO2 data package

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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. This data package brings together a suite of datasets and documents which describe the seabed environments and shallow geology of the Caswell Sub-basin, Browse Basin, Western Australia.

Data and resources

Autonomous Underwater Vehicle (AUV) still images

Autonomous Underwater Vehicle (AUV) still images

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Total oxygen uptake and TCO2 release from core incubation experiments on marine sediments

Total oxygen uptake and TCO2 release from core incubation experiments on marine sediments

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Sediment oxygen demand in seabed sediments

Sediment oxygen demand in seabed sediments

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Total sediment metabolism, bulk carbonate, mineral specific surface area, major and trace elements and carbon and nitrogen concentrations and isotopes of seabed sediments

Total sediment metabolism, bulk carbonate, mineral specific surface area, major and trace elements and carbon and nitrogen concentrations and isotopes of seabed…

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Chlorophyll a, b, c and Pheaophytin a concentrations in seabed sediments

Chlorophyll a, b, c and Pheaophytin a concentrations in seabed sediments

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A Marine Survey to Investigate Seal Integrity Between Potential CO2 Storage Reservoirs and Seafloor

A Marine Survey to Investigate Seal Integrity Between Potential CO2 Storage Reservoirs and Seafloor

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Porosity and Chlorins

Porosity and Chlorins

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High Resolution Bathymetry Grids

High Resolution Bathymetry Grids

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Organic Geochemistry of Core Sediments

Organic Geochemistry of Core Sediments

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Shipboard Multibeam Backscatter Grids

Shipboard Multibeam Backscatter Grids

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High-resolution Autonomous Underwater Vehicle (AUV) Backscatter Grids

High-resolution Autonomous Underwater Vehicle (AUV) Backscatter Grids

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p-rock (Probability of Rock) Grids

p-rock (Probability of Rock) Grids

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Autonomous underwater Vehicle (AUV) Sub-bottom Profiler Data

Autonomous underwater Vehicle (AUV) Sub-bottom Profiler Data

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Shipboard Sub-bottom Profiler Data

Shipboard Sub-bottom Profiler Data

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Autonomous Underwater Vehicle (AUV) Sidescan Sonar Data

Autonomous Underwater Vehicle (AUV) Sidescan Sonar Data

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Standard Multi-Sensor Core Logger Data

Standard Multi-Sensor Core Logger Data

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High-resolution Imagery of Piston Cores

High-resolution Imagery of Piston Cores

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Sediment Data

Sediment Data

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Remotely Operated Vehicle (ROV) imagery

Remotely Operated Vehicle (ROV) imagery

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Browse Basin Marine Survey, 2014 (GA-0345,GA-0346 and TAN1411) - High Resolution Bathymetry Grids WMS

Browse Basin Marine Survey, 2014 (GA-0345,GA-0346 and TAN1411) - High Resolution Bathymetry Grids WMS

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Additional information

DOI	https://pid.geoscience.gov.au/dataset/ga/84570
Date (creation)	2015-01-01
Date (publication)	2016-06-07
Date (revision)	2019-05-08
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	Creative Commons Attribution 4.0
Source metadata	ISO 19115 XML
Last updated	2026-11-05
Created	2026-11-05
API	package_show