AndreaBozzo/ceres-open-data-index huggingface dataset:
Preliminary deep-sea sampling results, RV Sonne geological cruises off Western Australia in 1979

A six-week geological cruise of the West German research vesselSonne, under the auspices of the Australian-German Science Agreement, hasyielded a considerable amount of information about the Exmouth Plateau, theWallaby Plateau, and the intervening Cuvier Abyssal Plain. The main aim ofthe cruise was to sample pre-Quaternary strata cropping out on the plateaumargins; subsidiary aims were to sample the Quaternary sequence from conti-nental shelf to abyssal plain on two representative profiles, to obtainQuaternary cores for gas analysis, and to search for manganese modules. Allfour aims Were successfully accomplished.

During the cruise 31 single-channel seismic profiles were run tohelp select sampling targets. On the Exmouth Plateau and adjacent areas 102stations were successfully occupied, 31 yielding pre-Quaternary rocks. On the Wallaby Plateau and adjacent areas 18 stations were successfully occupied,13 yielding pre-Quaternary rocks. Samples were obtained from depths rangingfrom 100 m to 5200 m.

The sampling of pre-Quaternary strata has shed new light on thearea, On the northern Exmouth Plateau thick sequences of Early Jurassicshelf carbonates and Middle Jurassic coal measures were found beneath themain (?Late Jurassic) unconformity. Cretaceous shelf and pelagic sedimentswere also shown to exist. Above the main unconformity there is a condensedsequence of Cainozoic pelagic carbonates. On the northern margin of theWombat Plateau there is a volcanic sequence at least 300 m thick beneaththe main unconformity. On the northwestern Exmouth Plateau Albian andMiocene carbonates were sampled. On the southern margin results were disa-ppointing, but Mesozoic sandstone and shale and Tertiary pelagic carbonateswere sampled.

The layered sequence below the main (?Neocomian) unconformity,both on the eastern Wallaby Plateau and on the "Sonne Ridge", which extends northward from the plateau into the Cuvier Abyssal Plain, was shown to consistof interbedded weathered "basalts", tuffs, breccias, and volcaniclasticsediments. This suggests that a thick volcanic pile of Early Cretaceous ageforms much of the Wallaby Plateau.

A variety of Quaternary cores, almost all of biogenic carbonates,were obtained on profiles from Rowley Shoals to the Argo Abyssal Plain, andfrom southwest of Barrow Island to the Cuvier Abyssal Plain. Quaternarycores in the central Exmouth Plateau were sampled for gas analysis; pre-liminary results indicate that methane is generally present, but in verylow amounts. Manganese nodules were obtained from the southern and easternmargins of the Wallaby Plateau, and preliminary determinations of contentsof nickel and copper suggest that they are above Indian Ocean averages, butwell below a grade of economic interest.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, marine, marine survey
Organization: Geoscience Australia Data
SI 1047 Queensland Plateau (South-West) QLD (HIPP SI 1047) Bathymetry 2024 (20240005S)

This is a contracted survey conducted for the Australian Hydrographic Office by EGS as part of the Hydroscheme Industry Partnership Program (HIPP). The survey area is Queensland Plateau, QLD.

Not to be used for navigational purposes

Tags: AusSeabed, Bathymetry, Coral Sea, Digital Delivery, EARTH SCIENCES, Marine, Offshore Mapping, PMG Emerald, Published_External, Resourcing Australia’s Prosperity, Sampling, multi-beam echosounders
Organization: Geoscience Australia Data
Magnetic anomaly grid of the Australian Region

These data represent the January 2002 edition of the Magnetic Anomaly Grid of the Australian Region. This  version is the first integrated onshore/offshore magnetic anomaly grid for the complete Australian margin extending across 8S - 52S, 106E - 172E. The grid cell size is 0.01 degree (approx. 1 km). Earlier releases were restricted to portions of NW and SW Australia.
- Magnetic anomaly unit is nanoTesla (nT). Appropriate IGRFs have been removed. Horizontal datum is GDA94 (which is equivalent to WGS84).
- The marine data were levelled independently of the onshore data in three sectors (see below). The NNW and SSW sectors were released as grids previously. The eastern sector was levelled in 2000 in collaboration with Intrepid Geophysics (Melbourne, Australia). The three levelled sectors, together with the unlevelled sectors were combined with the onshore grid to give the present grid. Altogether, 3,022,656 data points are in the database from which the marine grid was created.
- Unlevelled sectors: (-8  -25  160  172), (-39  -52  156  172), (-46  -52  106  140)
- Levelled sectors: (-37  -52  140  156), (-25  -39  143  172), (-8  -25  143  160), (-24  -46  106  140), (-8  -24  106  143)
- There are several places at the join between onshore and offshore grids where the two grids do not match. The problem exists because the onshore grid was developed earlier, and there was poor control on the grid merging process at the margins. Future work will attempt to address this issue and improve the continuity between the onshore and offshore grids.

Tags: Data Package, Earth Sciences, Geothematic, National dataset, Published_External, TMI, dataset, geophysics, magnetics
Organization: Geoscience Australia Data
Seabed Environments of the Eastern Joseph Bonaparte Gulf, Northern Australia

A seabed mapping survey over a series of carbonate banks, intervening channels and surrounding sediment plains on the Van Diemen Rise in the eastern Joseph Bonaparte Gulf was completed under a Memorandum of Understanding between Geoscience Australia and the Australian Institute of Marine Sciences. The survey obtained detailed geological (sedimentological, geochemical, geophysical) and biological data for the banks, channels and plains to establish the late-Quaternary evolution of the region and investigate relationships between the physical environment and associated biota for biodiversity prediction. This report provides details of the activities undertaken during the (survey SOL4934), including a list of the samples and data that were collected. The survey was completed between 27 August and 24 September, 2009.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, bathymetry, continental shelf, marine, morphology, resource assessment
Organization: Geoscience Australia Data
Quaternary Sediment Cores from the Southern Fairway Basin on the Northern Lord Howe Rise (Tasman Sea)

Thick packages of Cretaceous and Tertiary sediment with numerous diapirs fill the Southern Fairway Basin (SFB) on the Lord Howe Rise (LHR).  A bottom-simulating reflector (BSR) also extends across much of this basin, perhaps indicating substantial amounts of CH4 as gas hydrate and free gas.  As part of the ZoNiCo 5 survey, run on behalf of the New Caledonian government, 13 piston cores were taken by the RV L'Atalante in 1999 to assess the gas and petroleum potential of the SFB.  Specifically, the cores were recovered to document the nature of sediment, pore water and gas in the shallow sedimentary section. 
The 13 cores, from 1250 to 2753 m below sea level (mbsl) and between 405 and 758 cm long, contain stiff nannofossil ooze.  If average regional sedimentation rates apply (10 m/my), the maximum age at the bottom of cores is less than 800,000 years.  The sediment typically grades from greyish orange at the top, to very pale orange in the middle, and then to either yellowish grey, very light grey or white at the bottom.  Thin black horizons, presumably composed of pyrite, also occur.  The changes in colour are related to variations in magnetic susceptibility (MS) and pore water SO42-.  Pale and grey zones generally have low MS punctuated by MS highs, and low pore water SO42- concentrations.  Methane was detected in most sediment samples, although at trace levels.  The presence of ethane, propane and higher hydrocarbons suggests that gases in the SFB have a thermogenic component. 
With the available data, the best explanation for colour, MS and SO42- profiles is that Fe has been remobilised under anoxic conditions.  Ferric iron in solid oxyhydroxide phases and SO42- in pore waters have been converted to dissolved ferrous iron and sulphide.  Some of this iron and sulphur has then re-precipitated as pyrite or magnetite (the MS spikes).  The overall process may be driven by CH4 from underlying gas hydrate deposits.  Upward fluxes of CH4, perhaps of thermogenic origin, induce anaerobic CH4 oxidation in shallow sediment, a process that consumes SO42-.  As a consequence, unexpectedly shallow redox fronts occur in the SFB.  However, longer cores with less-oxidised sediment and additional analyses are needed to understand sediment, water and gas in this region.

Tags: Earth Sciences, GA Publication, Published_External, Record, geology, hydrocarbons, marine, marine survey, petroleum reserves, stratigraphy
Organization: Geoscience Australia Data
AGSO Journal vol.14 no. 4

Content:
1.Blake DH, Hoatson DM. Granite, gabbro, and migmatite field relationships in the Proterozoic Lamboo Complex of the East Kimberley region, Western Australia.
2.Black LP, Withnall IW. The ages of Proterozoic granites in the Georgetown Inlier of northeastern Australia, and their relevance to the dating of tectonothermal events. 
3.Wright D, le Poidevin S, Morrison G, Thomas R. Potential from enhanced oil recovery applications in Australia. 
4.Childs JS, McDonald PS. A preliminary overview of groundwater quality in the Northern Territory.
5.Lavering IH. Gradational benthic marine communities in the Early Carboniferous Rhipidomella fortimuscula Zone (Late Visean), New South Wales.
6.Macphail MK, Kellett JR. Palynostratigraphy of the Bookpurnong Beds and related Late Miocene-Early Pliocene facies in the central west Murray Basin. Part 1: Dinoflagellates.
7.Macphail MK, Truswell EM. Palynostratigraphy of the Bookpurnong Beds and related Late Miocene-Early Pliocene facies in the central west Murray Basin. Part 2: Spores and pollens.
8.Matsumoto T, Skwarko SK. Cretaceous ammonites from south-central Papua New Guinea.

Tags: Earth Sciences, GA Publication, Journal, Published_External
Organization: Geoscience Australia Data
50m Multibeam Dataset of Australia 2018

This dataset contains all multibeam bathymetry data held by Geoscience Australia as of June 2018. It was compiled from data holdings lying within the offshore area of Australia, including international waters, and gridded at 50m. Source information can be found in the associated vector product, AusSeabed Bathymetry Holdings (https://pid.geoscience.gov.au/dataset/ga/116321). This dataset is accessible via clip, zip &amp; ship enabled web mapping service on Geoscience Australia’s Marine data portal, http://marine.ga.gov.au. In future, this product will be delivered dynamically through the AusSeabed portal (in development).

This dataset is not to be used for navigational purposes.

Tags: AusSeabed, HVC_146413, Published_External, bathymetry, depth, marine, multibeam
Organization: Geoscience Australia Data
Tasmania Basin hydrogeological inventory

This Tasmania Basin dataset contains descriptive attribute information for the areas bounded by the relevant spatial groundwater feature in the associated Hydrogeology Index map. Descriptive topics are grouped into the following themes: Location and administration; Demographics; Physical geography; Surface water; Geology; Hydrogeology; Groundwater; Groundwater management and use; Environment; Land use and industry types; and Scientific stimulus.

The Late Carboniferous to Late Triassic Tasmania Basin covers approximately 30,000 square kilometres of onshore Tasmania. The basin contains up to 1500 m of mostly flat-lying sedimentary rocks, and these are divided into two distinct lithostratigraphic units, the Lower and the Upper Parmeener Supergroup. The Lower Parmeener Supergroup comprises Late Carboniferous to Permian rocks that mainly formed in marine environments. The most common rock types in this unit are mudstone, siltstone and sandstone, with less common limestone, conglomerate, coal, oil shale and tillite. The Upper Parmeener Supergroup consists predominantly of non-marine rocks, typically formed in fluvial and lacustrine environments. Common rock types include sandstone, siltstone, mudstone and minor basalt layers. Post-deposition the rocks of the Parmeener Supergroup experienced several major geological events, including the widespread intrusion of tholeiitic dolerite magma during the Middle Jurassic.

Tags: Basin Analysis, EARTH SCIENCES, ECOLOGY, ENVIRONMENTAL SCIENCES, Environmental Management, Exploring for the Future, GEOLOGY, Groundwater, Hydrogeology, Land Use and Environmental Planning, National Groundwater Sytems, National Hydrogeological Inventory, PHYSICAL GEOGRAPHY AND ENVIRONMENTAL GEOSCIENCE, Published_External, Sedimentology, Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)
Organization: Geoscience Australia Data
Townsville Yellow Crazy Ant Treatment Areas

This map has been produced using data from the Townsville City Council’s digital database and is intended for general informational purposes only. The Council makes no warranty, expressed or implied, regarding the accuracy, completeness, or currency of the information presented. The locations shown represent approximate areas where yellow crazy ant infestations have been detected. These infestations are at various stages of management, and the boundaries may not reflect their current size, spread, or status.

Tags: Yellow Crazy Ant, Yellow Crazy Ant Treatment Area
Organization: Townsville City Council
Triassic petroleum systems on the central North West Shelf – Learnings from the Greater Phoenix area seismic mapping and geochemical studies

The greater Phoenix area in the Bedout Sub-basin has experienced recent exploration success on Australia’s North West Shelf (NWS). Oil and gas discoveries in the Triassic reservoirs of the Keraudren Formation and Locker Shale have revived interest in mapping the distribution and lateral facies variation of the Triassic succession from the Bedout Sub-basin into the adjacent underexplored Beagle and Rowley sub-basins. This multi-disciplinary study integrating structural architecture, sequence stratigraphy, palaeogeography and geochemistry has mapped the spatial and temporal distributions of Triassic source rocks on the central NWS. The Lower‒Middle Triassic palaeogeography is dominated by a deltaic system building from the Bedout Sub-basin into the Beagle Sub-basin. The oil sourced and reservoired within the Lower‒Middle Triassic sequences at Phoenix South 1 is unique to the Bedout Sub-basin, compared to other oils along the NWS. Its mixed land-plant and algal biomarker signature is most likely sourced locally by fluvial-deltaic mudstones within the TR10‒TR14 or TR15 sequences and represents a new petroleum system on the NWS. A Middle Triassic marine incursion is recorded in the Bedout Sub-basin with the development of a carbonate platform while in the Rowley Sub-basin, volcanics have been penetrated at the top of the thick Lower‒Middle Triassic sediment package. The Late Triassic palaeogeographic map suggests a carbonate environment in the Rowley Sub-basin distinct to the clastic-dominated fluvial-deltaic environment in the Beagle Sub-basin. This information combined with results of well-based geochemical analyses highlights the potential for hydrocarbon generation within the Upper Triassic in these sub-basins.

This extended abstract was presented at the Australasian Exploration Geoscience Conference (AECG) 2019

Tags: Central North West Shelf, EARTH SCIENCES, Published_External, Triassic, palaeogeography, petroleum systems, source rocks
Organization: Geoscience Australia Data
Benthic sediment surveys of inner Darwin Harbour (GA0358) and shallow water areas in and around Bynoe Harbour (GA0359) in 2017: Sediment oxygen demand measurements on seabed sediments.

Benthic sediment sampling of Inner Darwin Harbour (GA0358) and shallow water areas in and around Bynoe Harbour (GA0359) was undertaken between May 29 and June 19, 2017. Partners involved in the surveys included Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS) and the Department of Environment and Natural Resources within the Northern Territory Government (NT DENR) (formerly the Department of Land and Resource Management (DLRM)). These surveys form part of a four year (2014-2018) science program aimed at improving knowledge about the marine environments in the regions around Darwin and Bynoe Harbour’s through the collection and collation of baseline data that will enable the creation of thematic habitat maps to underpin marine resource management decisions.  This project is being led by the Northern Territory Government and is supported by the INPEX-led Ichthys LNG Project, in collaboration with - and co-investment from GA and AIMS. This dataset comprises sediment oxygen demand measurements made on seabed sediments.

Tags: Published_External, continental shelf, geochemistry, marine, marine baselines, marine survey, seabed
Organization: Geoscience Australia Data
McArthur Basin hydrogeological inventory

This McArthur Basin dataset contains descriptive attribute information for the areas bounded by the relevant spatial groundwater feature in the associated Hydrogeology Index map. Descriptive topics are grouped into the following themes: Location and administration; Demographics; Physical geography; Surface water; Geology; Hydrogeology; Groundwater; Groundwater management and use; Environment; Land use and industry types; and Scientific stimulus.

The McArthur Basin, located in the north-east of the Northern Territory, is a Paleoproterozoic to Mesoproterozoic geological formation containing relatively undisturbed siliclastic and carbonate rocks, as well as minor volcanic and intrusive rocks. These sediments were primarily deposited in shallow marine environments, with some lacustrine and fluvial influences.

The basin's thickness is estimated to be around 10,000 m to 12,000 m, potentially reaching 15,000 m in certain areas. It is known for hosting elements of at least two Proterozoic petroleum systems, making it a target for petroleum exploration, especially in the Beetaloo Sub-basin.

Researchers have divided the McArthur Basin into five depositional packages based on similarities in age, lithofacies composition, stratigraphic position, and basin-fill geometry. These packages, listed from oldest to youngest, are the Wilton, Favenc, Glyde, Goyder, and Redback packages.

The McArthur Basin is part of the broader Proterozoic basin system on the North Australian Craton, bounded by various inliers and extending under sedimentary cover in areas like the Arafura, Georgina, and Carpentaria basins. It is divided into northern and southern sections by the Urapunga Fault Zone, with significant structural features being the Walker Fault Zone in the north and the Batten Fault Zone in the south.

The basin's southeastern extension connects with the Isa Superbasin in Queensland, forming the world's largest lead-zinc province.

Overall, the McArthur Basin is an essential geological formation with potential petroleum resources, and its division into distinct packages helps in understanding its complex stratigraphy and geological history. Additionally, its connection with other basins contributes to a broader understanding of the region's geological evolution and resource potential.

Tags: Basin Analysis, EARTH SCIENCES, ECOLOGY, ENVIRONMENTAL SCIENCES, Environmental Management, Exploring for the Future, GEOLOGY, Groundwater, Hydrogeology, Land Use and Environmental Planning, National Groundwater Sytems, National Hydrogeological Inventory, PHYSICAL GEOGRAPHY AND ENVIRONMENTAL GEOSCIENCE, Published_External, Sedimentology, Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)
Organization: Geoscience Australia Data
Oodnadatta experimental seismic survey, South Australia 1957

This record details the results of an experimental seismic survey done in the Oodnadatta area of the Great Artesian Basin in July and August 1957. The purposes of the survey were to find whether reflections could be recorded from beneath duricrust, a siliceous surface deposit, and whether structures mapped by surface geological methods persist with depth.

Tags: AU-SA, Earth Sciences, GA Publication, Published_External, Record, seismics
Organization: Geoscience Australia Data
NESP D3 Hunter Marine Park Bathymetry 2019 (20190061S)

Gridded multi-beam echousounder (MBES) bathymetry data for Hunter Marine Park acquired using NSW Department of Planning Industry and Environment MBES system aboard RV Bombora for the National Environmental Science Program (NESP Biodiversity Hub). Fieldwork was funded, both cash and in-kind, by NSW DPIE and NESP in Year 1 (2015) and 4 (2018) of the D3 Project. Initial surveys (2015) were exploratory as long-lines across the inner Special Purpose Zone (trawl) over the continental shelf with later surveys (2018) focused on 100% coverage over areas previously identified as containing the Key Ecological Feature ‘Continental Shelf Reef’. Reports by Davies et al (2016) 'Mapping Shelf Rocky Reef Habitats in the Hunter Commonwealth Marine Reserve', National Environmental Science Program Biodiversity Hub D3 Project –Evaluating and monitoring the status of marine biodiversity assets on the continental shelf; and Williams et al (2020) 'Mapping and characterising reef habitat and fish assemblages of the Hunter Marine Park', Project D3- Preparing for and implementing monitoring of CMR’s and the status of marine biodiversity assets on the continental shelf, Milestone Report December 2020; detail these MBES surveys as well as towed underwater video and BRUVs, to characterise seabed habitats, fish and sessile invertebrate assemblages of the Hunter Marine Park. Reports are available at https://www.nespmarine.edu.au/publications. Survey sites for focused mapping in 2018-19 were 1) 3-6 NM east and south-east of Seal Rocks - Sugarloaf Point, 2) Outer Gibber - a feature in 20-60m of water north-east of Broughton Islands and ~3-4 NM from shore and 3) 3-7 NM east to north-east of Broughton Island.

Not to be used for navigational purposes

Tags: AusSeabed, Bathymetry, Delivery, awareness raising and engagement, Digital Delivery, EARTH SCIENCES, Marine, Offshore Mapping, Published_External, RV Bombora, Resourcing Australia’s Prosperity, Tasman Sea, multi-beam echosounders
Organization: Geoscience Australia Data
Holocene Palaeo-Environmental changes, central to north Great Barrier Reef inner zone

Fringing reefs and storm ridges, from inner-shelf sites on the Great Barrier Reef between 14Â° and 20Â° S, are examined for Holocene sea-level and climatic changes. The sites all lie close to the line along which the sea level of 5500 yr B. P. is thought, on isostatic grounds, to have been + 1 m. Coral microatolls are used as indicators of former sea levels on fringing reefs.  45 radiocarbon results from 11 sites range between 360 and 5855 yr B. P., and their age/height distribution shows that sea level fell smoothly from + 1 m at 6000 yr B. P. to its present position. Confidence limits on the sea-level trend are Â±0.2 m; and no evidence for secondary oscillations of sea level has been found. With reference to climate, coral shingle and shell storm-ridge sequences at 5 places (total of 8 traverses) were surveyed and dated. Results from the best sequence (Princess Charlotte Bay) show that the average recurrence interval of major ridge-building storms is about 80 yr. Statistics of the series of storm-ridge ages do not show any identifiable changes in frequency of ridge building over the last 4000 yr and perhaps 6000 yr. It is concluded that evidence for climatic changes in the northern Great Barrier Reef in the last 6000 yr has not yet been found. The direction of continuing studies is outlined.

Tags: Earth Sciences, GA Publication, Journal, Published_External, QLD, marine
Organization: Geoscience Australia Data