AndreaBozzo/ceres-open-data-index huggingface dataset:
Triassic provenance analysis of the Roebuck Basin, Australia

The Roebuck Basin is on Australia’s North West Shelf, between the Browse and northern Carnarvon basins. The basin consists of Paleozoic to recent fluvial to deep marine mudstones and sandstones, carbonate platforms and reefs, and volcaniclastics. Recent hydrocarbon discoveries in the Bedout Sub-basin have renewed exploration interest and changed existing perceptions about the regions prospectivity. 

The interpretation of U-Pb detrital zircon dating from offshore petroleum well cuttings provides new information regarding the origin of sediments and changes in sediment provenance. This analytical work has the potential to better understand reservoir quality within the Triassic Upper and Lower Keraudren deltas (and equivalent sequences). A range of detrital zircon age spectra were obtained. Analyses of zircon grain shapes (i.e. roundness) somewhat supports transportation of some distance, but could also signify multi-phase recycling. However, the combined detrital age spectra and grain shape reveals that the Roebuck Basin deltas had multiple sediment sources. The Roebuck Basin’s Triassic sediments appear to be derived from Australia’s interior, potentially transported either directly via large rivers or from subsequent sediment reworking and transport via long-shore drift. 

Seismostratigraphic interpretations have identified potential sediment transport mechanisms including clinoforms and submarine canyons. Significant landward uplift and erosion associated with the latest Permian-aged Bedout Movement supports the reworking of Permian sediments. Integration of additional samples, and linking these to palaeogeographic settings, will provide additional clarity of the potential Australian and non-Australian Triassic sediment sources. This study aims to provide further insight into the origin of the reservoir units in the Roebuck Basin.

Tags: Earth Sciences, Provenance analysis, Published_External, Seismostratigraphy, detrital zircon
Organization: Australian Ocean Data Network
Arafura Marine Park survey (SOL7491/GA0366)

This resource includes bathymetry data for Arafura Marine Park (Arafura Sea) collected by Geoscience Australia (GA) and the Australian Institute of Marine Science during the period 2 – 15 November 2020 on the RV Solander. The survey was undertaken as a collaborative project funded through the National Environmental Science Program Marine Biodiversity Hub, with co-investment by GA and AIMS. The purpose of the project was to build baseline information for benthic habitats in Arafura Marine Park that will support ongoing environmental monitoring within the North Marine Park Network as part of the 10-year management plan (2018-2028). Data acquisition for the project included multibeam bathymetry and backscatter for two areas (Money Shoal and Pillar Bank), seabed samples and underwater imagery of benthic communities and demersal fish. This bathymetry dataset contains a 6 m resolution 32-bit geotiff of the survey areas produced from the processed EM2040C Dual Head system using CARIS HIPS and SIPS software. A detailed report on the survey is provided in: Picard, K. Stowar, M., Roberts, N., Siwabessy, J., Abdul Wahab, M.A., Galaiduk, R., Miller, K., Nichol, S. 2021. Arafura Marine Park Post Survey Report. Report to the National Environmental Science Program, Marine Biodiversity Hub.

Tags: AusSeabed, Bathymetric grids, Bathymetry, EARTH SCIENCES, HVC_144641, Marine, Multibeam, Published_External
Organization: Australian Ocean Data Network
ETAS (Eastern TASmania) Ocean Model Output - Daily Timeseries

The ETAS (Eastern TASmania) model is a high-resolution (~2 km in the horizontal) ocean model for eastern Tasmania, providing three-dimensional estimates of daily temperature, salinity, and circulation over the 1993-2014 period. This dataset consists of temperature, salinity, density, sea level, eastward (u) and northward (v) currents organised into timeseries files.

Tags: Climatology (excl. Climate Change Processes), Eastward component of bottom current deviation, Eastward component of current, K component of current at cell centre and Z grid, Latitude at cell centre, Longitude at cell centre, Northward component of bottom current deviation, Northward component of current, Physical Oceanography, Surface Elevation, Temperature, Time, Z coordinate at grid layer faces
Organization: Australian Ocean Data Network
Geology of the onshore Canning Basin, Western Australia

The Canning Basin is a large, intracratonic basin located between the Halls Creek Province and the Pilbara Block in the Great Sandy and Gibson Deserts region of Western Australia. Although blanketed by Cainozoic superficial sediments, reconnaissance mapping, drilling, and geophysical data have shown that the Canning Basin sequence is composed of faulted and folded Phanerozoic sedimentary rocks up to 18 km thick. The geology of the onshore Canning Basin is characterised by five major periods of sedimentation; each period comprising a number of marine and continental phases, and each separated by major intervals of erosion with or without tectonism. The first period occurred during the Early Ordovician when predominantly marine sediments were deposited. The second period extended from possibly the Silurian through to the Early Carboniferous, Evaporitic marine, then continental-to-marine sediments were laid down, including a thick sequence of reef-carbonates during the Devonian. Tensional tectonism during this depositional phase formed the Fitzroy Trough and adjacent shelves and terraces in the northeast of the Canning Basin. The third period of sedimentation began in the Late Carboniferous with both marine and continental sedimentation, initially under glacial conditions, and continued under a warmer climate into the Early Triassic, with marine and minor fluvial sediments accumulating. This was followed by a major phase of compressional tectonism, probably during the Early Jurassic, which resulted in some right lateral shear and reverse movement along the Fenton Fault System at the southern margin of the Fitzroy Trough, and the folding of sediments within the Trough. The fourth period of sedimentation commenced in late Early Jurassic times and continued until the Early Cretaceous with regional transgression from the northwest together with some fluvial influence, and ended with a minor transgression from the adjoining Officer Basin to the southeast. The final major period of sedimentation was in the Cainozoic, during a wet climate, when a well-preserved dendritic palaeodrainage system developed on a land surface dominated by a duricrusted peneplain. As conditions became drier, salt lakes and sand dunes formed. Later, near shore marine and continental sediments accumulated along the coast in response to a fluctuating sea level. Good reservoir rocks and hydrocarbon source rocks are present within the Canning Basin sequences.  Many potential petroleum trap structures have been tested with limited success. The best potential targets appear to be the Devonian reefs and the overlying Late Devonian to Early Carboniferous Fairfield Group. The Jurassic sandstones, Tertiary valley calcrete, and Quaternary alluvium are prospective for good quality groundwater.

Tags: AU-WA, Bulletin, Earth Sciences, GA Publication, Published_External, geology
Organization: Australian Ocean Data Network
Geographe Marine Park Bathymetry - 5m Resolution Grid

Australia has established a network of 58 marine parks within Commonwealth waters covering a total of 3.3 million square kilometres, or 40 per cent of our exclusive economic zone (excluding Australian Antarctic Territory). These parks span a range of settings, from near coastal and shelf habitats to abyssal plains. Parks Australia manages the park network through management plans that came into effect for all parks on 1 July 2018. Geoscience Australia is contributing to their management by collating and interpreting existing environmental data, and through the collection of new marine data. “Eco-narrative” documents are being developed for those parks, where sufficient information is available, delivering collations and interpretations of seafloor geomorphology, oceanography and ecology. Many of these interpretations rely on bathymetric grids and their derived products, including those in this data release. 
Bathymetry grids: 
The bathymetry of the marine parks was created by compiling and processing Geoscience Australia’s bathymetry data holding gridded at the optimum resolution depending of the vessel’s sonar system. 
The bathymetry of the park is illustrated by a panchromatic geotiff image, developed by combining the bathymetric data with a hillshade image. 
 Morphological Surfaces: 
Geoscience Australia has developed a new marine seafloor classification scheme, which uses the two-part seafloor mapping morphology approach of Dove et al (2016). This new scheme is semi-hierarchical and the first step divides the slope of the seafloor into three Morphological Surface categories (Plain, &lt;2°; Slope, 2-10°; Escarpment, &gt;10°). 
Dove, D., Bradwell, T., Carter, G., Cotterill, C., Gafeira, J., Green, S., Krabbendam, M., Mellet, C., Stevenson, A., Stewart, H., Westhead, K., Scott, G., Guinan, J., Judge, M. Monteys, X., Elvenes, S., Baeten, N., Dolan, M., Thorsnes, T., Bjarnadóttir, L., Ottesen, D. (2016). Seabed geomorphology: a twopart classification system. British Geological Survey, Open Report OR/16/001. 13 pages. 
This research is supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub through Project D1.

This dataset is not to be used for navigational purposes.

Tags: AusSeabed, HVC_144641, Marine Biodiversity Hub, National Environmental Science Program, Published_External, bathymetry, bathymetry grid, marine, marine data
Organization: Australian Ocean Data Network
Sedimentology and Facies Distribution within the Horn Valley Siltstone, Amadeus Basin : A Reconnaissance Study

Exposure of the Horn Valley Siltstone is usually poor, but well preserved material can be obtained from some of the fully cored wells intersecting this interval throughout the Amadeus Basin. In this study, the following cored holes were used: Henbury #4, Henbury #6, Mt Liebig #2, Tempe Vale#1 and Tent Hill #1. I have subdivided the formation into ten informal members, HV1(lowermost) to HV10, which reflect vertical lithofacies variations in a shallow marine shelf environment. These members have been defined primarily from sedimentological and palaeontological information such as the presence or absence of body fossils, mode of preservation, species associations within groups of fossils, presence or absence of bioturbating organisms (trace fossils), lithology and bedding types. It can be inferred that the amount and composition of organic matter preserved in the sediment was determined largely by the concentration of oxygen in the bottom water and the extent to which the sediment was disrupted by burrowing organisms because burrowing and scavenging activities of benthic organisms are controlled by the concentration of oxygen in the bottom water. Organic geochemical data fromTempe Vale #1 and Tent Hill #1 were used to confirm these facies variations.

The transition between HV6 and HV7, which can be recognised easily by the sudden change in shale to carbonate ratio, has been found to coincide with the presence of high organic rich sediments, with recorded TOC values of up to 6.30%.

Tags: Earth Sciences, GA Publication, Published_External, Record, geology, palaeontology
Organization: Australian Ocean Data Network
Estimating the biodiversity of the East Antarctic shelf and oceanic zone for ecoregionalisation: example of the ichthyofauna of the CEAMARC (Collaborative East Antarctic Marine Census) CAML surveys

Ecoregions are defined in terms of community structure in function of abiotic or even anthropogenic forcing.  They are mesoscale structures defined on the potential habitat of species or predicted communities geographic extent. We assume that they can be more easily defined for long-lived species such as benthos or neritic fish in the marine environment. Uncertainties exist for the pelagic realm because of its higher variability, plus little is known about the meso- and bathypelagic zones. A changing environment and modifications of habitats will probably drive new communities from plankton to fish or top predators. We need based-line studies such as those of CAML, databases like SCAR-MarBIN and tools for integrating all of these observations. Our objective is to understand the biodiversity patterns in the Southern Ocean and how these might change.

Tags: AQ, Antarctic data, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, abiotic surrogates, geomorphology, marine
Organization: Australian Ocean Data Network
Harris Greenstone Belt GIS Dataset

The Harris Greenstone Domain (HGD) is a late Archean-Proterozoic arcuate tectnostratigraphic terrane in the centre of the Gawler Craton. It is bound to the south by the Yerda Shear Zone and has a lithological zone boundary to the north with the Wilgena Domain. The basement comprises Archean ultramafic-mafic extrusives (Lake Harris Komatiite), aluminous metasediments (Christie Gneiss), felsic extrusives and intrusives (Kenalla Gneiss), felsic intrusives (Glenroth Granite), and Proterozoic felsic intrusives (Hiltaba Suite Granite, St Peter Suite), felsic and mafic extrusives (Gawler Range Volcanics), and fluvial-marine sedimentary rocks (Tarcoola Formation, Pandurra Formation).

The HGD is characterised by a series of sub-parallel east-northeast trending sinuous magnetic high features flanked by large ovoid to elongate magnetic highs and lows. The prominent narrow magnetic highs constitute the Archean Harris Greenstone Belt (HGB). Rock types in this poorly exposed belt include komatiite, komatiitic basalt, tholeiitic basalt, and subordinate banded iron formation, metasediments, felsic volcanics, and pyroclastics metamorphosed to amphibolite facies during the Sleafordian Orogeny at ~2440 Ma. 

The Lake Harris Komatiite, which represents the most eastern occurrence of komatiite in Australia, has potential for Ni-Cu-PGE sulphide and lode-Au mineralising systems. The prospective greenstone sequence is covered by thin (&lt;50 m) Quaternary sand and Eocene fluvial channel deposits. The distribution and structure of the greenstones is based largely on interpretation of aeromagnetics, gravity, and diamond drillcore.

Tags: 250K scale, AU-SA, Earth Sciences, GIS, GIS Dataset, Published_External, dataset, geology, geophysics
Organization: Australian Ocean Data Network
Australian Marine Spatial Information System (AMSIS)

The Australian Marine Spatial Information System (AMSIS) is a web based interactive mapping and decision support system that improves access to integrated government and non-government information in the Australian Marine Jurisdiction.

AMSIS is a decision support tool maintained by Geoscience Australia that brings together information required by Government, industry and private individuals with an interest in the regulation, geography and uses of Australia’s Marine Jurisdiction.  AMSIS provides a mechanism to visualise competing interests in the marine space; using curated data from across Government, State, and academia to expose competing use, and enable discussion with the multi-sectoral users to better plan and manage the Jurisdiction.

AMSIS contains many layers of information displayed in themes of Australia’s Maritime Boundaries, Petroleum, Fisheries, Environment, Native Title and general Regulation. 

Geoscience Australia is working with other Australian Government agencies, Industry and Academia to add additional information that will improve the functionality of AMSIS.

All information provided in AMSIS is the best available at the time of publication.  Although the best efforts have been made to ensure the information is current and accurate, the information is not warranted to be correct.  Users should investigate the metadata records to understand the limitations on any information layer, and consult with the regulating agency before making any decision.

Tags: AU, DC2020, Database, Earth Sciences, HVC_144653, National dataset, Published_External, data, marine, marine jurisdiction
Organization: Australian Ocean Data Network
Integrated approach to CO2 storage assessment in the offshore South Perth Basin, Australia

As part of the Australian Government National CO2 Infrastructure Plan (NCIP), Geoscience Australia is undertaking CO2 storage assessment of the Vlaming Sub-basin located offshore Western Australia in the southern Perth Basin. The Vlaming Sub-basin is a Mesozoic depocentre containing up to 14 km of sediments. Close proximity of the basin to industrial polluters in the Perth area dictates the need to find CO2 storage solutions in this basin. The main reservoir unit identified as suitable for storage of CO2 is the Early Cretaceous Gage Sandstone deposited in paleo-topographic lows of the Valanginian breakup unconformity. The reservoir unit is laterally extensive (over 1,500 km2) and over most of the area reasonably thick (100 - 300 m). It lies at depths between 1400 and 2000 m below the seafloor, which is suitable for injection of the supercritical CO2 and makes it an attractive target for the long-term storage. The reservoir unit is overlain by a thick deltaic to shallow marine succession of the South Perth Shale, which represents a regional seal in the area. Carbon Storage taskforce estimated that up 1 GT of CO2 can be stored in the Gage Sandstone. The first assessment of the Vlaming Sub-basin undertaken by CO2CRC focused on evaluation of the reservoir unit and overall storage capacity. The current study is based on interpretation and integration of the seismic, well and marine datasets, both existing and acquired since the previous assessment. It includes detailed analysis of reservoir and seal properties and a comprehensive evaluation of the seal integrity risks to allow a more accurate and realistic modeling for CO2 storage.

Tags: Conference Paper, Earth Sciences, External Publication, Published_External, geological storage of CO2, marine
Organization: Australian Ocean Data Network
Sedimentology and holocene history of a tropical estuary (Broad Sound, Queensland)

Broad Sound is situated at the confluence of four large estuaries. Freshwater inflow is restricted to the summer months. The Sound and its attendant estuaries are characterized by shallow water, a large tidal range (10 m), and strong tidal currents. In the shallow marine environment (the most seaward) pre- Holocene relict calcareous gravels are common. Calcareous sands, commonly occurring as sand ridges capped by megaripples, predominate in the open intertidal environment. Muds are most abundant in the mangrove swamp, mangrove channel, and supratidal flat environments, the muds become less calcareous and more saline in a landward direction. Textural studies revealed that grainsize parameters can be used to divide the sediments into environmentally significant groups; they also indicated that most of the sediments are brought into the estuaries during times of summer floods, and redistributed by tidal currents during the remainder of the year. The petrology and mineralogy of the sediments are consistent with some relative seaward movement of terrigenous sediment and landward movement of calcareous sediment. The relict nature of some of the sediments is revealed by their mineralogy, in particular their lack of less stable carbonates and heavy minerals. There is a seaward trend of increasing maturity in both the heavy-mineral and light-mineral assemblages. Drilling and radiocarbon dating have shown that most of the sediments are of late Holocene age. It appears from the Broad Sound evidence that sea level stabilized about 6000 years ago. Since that time there has been a marked seaward progradation of the shoreline producing a 'fining upward' regressive sequence. Regression appears to have been more rapid on the east side of the Sound, possibly a result of some late Holocene uplift. The Broad Sound study is valuable because it provides not only a regressive model for environmental interpretation in ancient sediments, but also a yardstick against which environmental changes in tropical estuaries can be measured.

Tags: AU-QLD, Bulletin, Earth Sciences, GA Publication, Published_External, marine
Organization: Australian Ocean Data Network
Geomorphology and Habitats of Shelf Reefs, Southeast Tasmania

Flythrough movie showing the bathymetry of the shelf along the coast of southeast Tasmania, highlighting rock reefs as benthic habitats. The bathymetric image is derived from multibeam sonar collected in 2008 and 2009 using a 300 kHz Simrad EM3002 system on RV Challenger and gridded at 3 - 4 m resolution. Key features on the shelf include low relief (&lt; 5 m) reefs on the outer shelf of Freycinet Peninsula and inner shelf of Tasman Peninsula, high relief (50-90 m) reefs surrounding Hippolyte Rocks, and extensive fractured reefs around The Friars to the south of Bruny Island. All reefs provide hard substrate for kelp gardens and diverse sponge communities. The southeast Tasmanian shelf is a study site for the Marine Biodiversity Research Hub, funded through the Commonwealth Environment Research Facilities (CERF) programme. Survey work was carried out as a collaboration between Geoscience Australia and University of Tasmania (Institute for Marine &amp; Antarctic Studies). Further information is provided in GA Record 2009/43.

Tags: AU-TAS, CERF, Earth Sciences, Flythrough, Multimedia, Published_External, bathymetry, geomorphology, mapping, marine, marine survey
Organization: Australian Ocean Data Network
RV Investigator Voyage IN2026_T01 End of Voyage (EOV) Archive

This record describes the End of Voyage (EOV) data archive from the Marine National Facility (MNF) RV Investigator voyage IN2026_T01, titled "IN2026_T01 Transit (no research)." The voyage took place between March 06, 2026 and March 14, 2026 (AEST), departing from Hobart and returning to Fremantle.
For further information please refer to the voyage documentation links.

Instruments used and data collected include:
Regular measurements:
Lowered ADCP (LADCP), Acoustic Doppler Current Profiler (ADCP; 38, 75, 150 KHz ), Greenhouse Gas Analysers (Picarro), Cloud Condensation Nuclei counter (CCN), Condensation Particle Counters (CPC), Disdrometer, Radon sensor, Mobility particle size spectrometer (MPSS), Black Carbon sensor (Aethalometer), CTD, Hydrochemistry, Fisheries Echosounder (EK80), Multibeam Echosounder (EM712, EM124, EM2040), Sub-bottom Profiler (SBP29), GPS Positioning System, Doppler Velocity Log, Thermosalinographs (TSG), Fluorometer, Oxygen Optode, Infrared Sea Surface Temperature Autonomous Radiometer (ISAR), pCO2, Gravimeter, Ozone Sensor, Nephelometer, Atmospheric Temperature, Humidity, Pressure, Wind and Rain sensors, Photosynthetically Active Radiation (PAR) sensor, Precision Infrared Radiometer (PIR), Precision Spectral Pyranometer (PSP), Starboard and Portside Radiometers, Air Sampler, Weather Radar, Expendable Bathythermographs (XBTs).
Voyage-specific measurements:
Wildlife Observations (seabirds, cetaceans and seals).

The archive for the IN2026_T01 EOV raw data is curated by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (https://data.csiro.au/), providing access to voyage participants and processors of the data collected on the voyage.
All voyage documentation is available electronically to MNF support via the local network. Applications to access voyage documentation by non-CSIRO participants can be made via data-requests-hf@csiro.au All processed data from this voyage are made publicly available through the MNF Data Trawler (in the related links)

Organization: Australian Ocean Data Network