AndreaBozzo/ceres-open-data-index huggingface dataset:
Scott River geophysical survey for bog iron, Western Australia 1961

A ground magnetic survey was made by the Bureau of Mineral Resources at the Scott River iron deposit during February and March 1961.Ten traverses totalling 34,000 ft were surveyed. The profiles obtained were those of a typical near-surface magnetic deposit, with high positive and negative values which alternated rapidly. Considerable flattening out of the profiles at the ends of the lines probably coincides with the boundary of magnetic ore; this may also be the boundary of economic ore. Owing to the lack of geological information it is not yet possible to attempt any quantitative correlation between the magnetic intensity and the grade or thickness of the ore. Until such information is forthcoming it is not recommended that further geophysical work be done in the area.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, geophysics
Organization: Geoscience Australia Data
Seabed geomorphology: mapping Australia’s way to a sustainable ocean economy

<em>Seabed geomorphology</em> describes the shape and evolution of underwater landscapes. These landscapes interact with ocean currents to create diverse marine habitats. Similar to geological maps on land, maps of seabed geomorphology are vital for making informed decisions to support the sustainable growth of our Ocean Economy.



As we gather more detailed seabed data and face increasing ocean pressures, there's a need for new, standardised maps that support consistent decision making at multiple scales and between administrative jurisdictions. Dr Rachel Nanson and an international team have developed a new seabed geomorphology classification system that is designed to simplify complex seabed interpretations into a map format that is accessible to a broad range of end users.



This approach is being adopted internationally and is currently being implemented by Geoscience Australia. We are using the method to map parts of Australia’s extensive Marine Park network and to support government to make informed decisions regarding Australia’s rapidly expanding Offshore Renewable Energy sector

Tags: DGAL, Geomorphology and earth surface processes, Outreach, Published_External, Wednesday Seminars, mapping, marine geomorphology
Organization: Geoscience Australia Data
Myport Pty Ltd - Declaration - Indooroopilly - 6 May 2026

Myport Pty Ltd - Declaration given on 6 May 2026 for nominated services area at 109 Clarence 
Road, Indooroopilly QLD 4068; which is part of the Anticipatory notice given on 5 August 2025.

Organization: SIP Register - Myport Pty Ltd
Australia's Seabed Map 2023

The map and underlying digital dataset provide national and regional-scale context for a wider variety of applications, including offshore industries, area-based environmental management, scientific research and public education.  

Australia’s Seabed Map is based on the revised AusBathyTopo 250m (Australia) 2023 grid (Beaman, 2023), the most comprehensive, continental-scale compilation of bathymetry data in the Australian region.  

The map extends across a vast area from 92°E to 172° E and 8°S to 60° S. This includes areas adjacent to the Australian continent and Tasmania, and surrounding Macquarie Island and the Australian Territories of Norfolk Island, Christmas Island, and Cocos (Keeling) Islands. Australia's marine jurisdiction offshore from the territory of Heard and McDonald Islands and the Australian Antarctic Territory are not included. 

The new map provides a complete three-dimensional picture of the seafloor and is a significant improvement since it was last revised in 2009. In particular, the map incorporates new innovations such as the use of earth observation data (satellite based) produced by Digital Earth Australia to improve coastline definition and present a seamless transition between land and sea. The data is compiled from 1582 individual surveys using multibeam echosounders, single-beam echosounders, LiDAR, or 3D seismic first returns, as well as higher-resolution regional compilations, and other source data including Electronic Navigation Charts and satellite derived bathymetry. The new map represents decades of data collection, analysis, investment and collaboration from Australia’s seabed mapping community.  

The 250 m resolution is only supported where direct bathymetric observations are sufficiently dense (e.g. where swath bathymetry data or digitised chart data exist). In many regions, this 250 m grid size is far in excess of the optimal grid size for some of the input data used. 

The AusBathyTopo250m grid and higher-resolution regional datasets are available on the AusSeabed Marine Data Portal as the AusBathyTopo Series.  

This map is not suitable for use as an aid to navigation, or to replace any products produced by the Australian Hydrographic Office. 

Medium: Digital PDF download.

Tags: 1 : 250, 000, Bathymetry, Depth, EARTH SCIENCES, ENVIRONMENTAL SCIENCE AND MANAGEMENT, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, OCEANOGRAPHY, Published_External, Seabed mapping, Seafloor map, Topography
Organization: Geoscience Australia Data
Preliminary post-cruise report : hydrocarbon gas geochemistry in sediments of the offshore Otway and Gippsland Basin: Project 9131.20 BMR Fossil Fuels Project

During April/May 1988, the BMR research vessel 'Rig Seismic' carried out a 21 day geochemical and sedimentological research program in the Otway (17 days) and Gippsland (4 days) Basins. Light hydrocarbon gases (C1-C6) were measured in sediments at 342 locations on thecontinental shelf and upper continental slope. Thermogenic hydrocarbons were identified in near-surface sediments at forty-two locations in the Otway (32) and Gippsland (10) Basins. The major results from the Otway Basin include:
<ol>
<li>

Evidence of thermogenic hydrocarbon sediments was found at seven locations on the Crayfish Platform, seven locations on the Mussel Platform and eighteen locations in the VolutaTrough.
</li>
<li>

Wet gas contents ([C2-C4/C1-C4] x 100), which provide some indication of both hydrocarbon source type and maturity,are highest on the basin margins, i.e. the Crayfish and Mussel Platforms. Wet gas contents were consistently lower in the Voluta Trough.
</li>
<li>

Total C1-C4 gas concentrations were higher in the Voluta Trough than on the basin margins, probably because of more intense near-surface faulting in the trough.
</li>
<li>

The geochemical data, when integrated with thermal maturation modelling and well data, suggest that the principal liquidhydrocarbon source rocks are located at the base of the Early Cretaceous Otway Group (i.e. basal Pretty Hill Sandstone). The Late Cretaceous Sherbrook Group appears to be gas-prone.
</li>
</ol>

Preliminary data from the Gippsland Basin identify ten locations which show evidence of thermogenic hydrocarbons in near-surface sediments.

Tags: AU-TAS, AU-VIC, Earth Sciences, GA Publication, Published_External, Record, geochemistry, hydrocarbons, marine, marine survey
Organization: Geoscience Australia Data
MyPort Pty Ltd-Anticipatory Notice- 12 May 2026-Newstead

MyPort Pty Ltd-Anticipatory Notice given on 12 May 2026 Ref ED26/30302 for

Project area: 16 Maud Street, Newstead. QLD.

Estimated completion date: 31/01/2029 Contract date: 29/04/2026  Network Type: FTTP

Organization: SIP Register - Myport Pty Ltd
5028 Block 4 (Northeast) Grid of Total Magnetic Intensity (TMI) with Reduction to Pole (RTP) and a First Vertical Derivative (1VD) applied

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. .
 This 5028 Block 4 (Northeast) Grid of Total Magnetic Intensity (TMI) with Reduction to Pole (RTP) and a First Vertical Derivative (1VD) applied is the first vertical derivative of the TMI RTP grid of the Narryer survey.
This grid has a cell size of  degrees (approximately 20m) , and given in units of nT per metre (nT/m).  The data used to produce the TMI grid was acquired in 2024 by the WA Government, and consisted of 415090 line-kilometres of data at 100m line spacing and 50m terrain clearance. The data has had a variable reduction to the pole applied to centre the magnetic anomaly over the magnetised body. The VRTP processing followed a differential reduction to pole calculation up to 5th order polynomial. Magnetic inclination and declination were derived from the IGRF-11 geomagnetic reference model using a data representative date and elevation representative of the survey. A first vertical derivative was calculated by applying a fast Fourier transform (FFT) process to the TMI RTP grid of the Narryer survey to produce this grid. This grid was calculated using an algorithm from the INTREPID Geophysics software package. This grid shows the magnetic response of subsurface features with contrasting magnetic susceptibilities. The grid can also be used to locate structural features such as dykes.

Tags: 1VD, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, RTP, TMI, WA, airborne digital data, first vertical derivative, geophysical survey, geophysics, greyscale, grid, image, mag, magnetics, magnetism, palaeomagnetism, reduced to the pole, survey 5028, total magnetic intensity
Organization: Geoscience Australia Data
The Lord Howe Rise: newly-acquired multi-channel and wide-angle seismic data to study an enigmatic continental ribbon

The Lord Howe Rise (LHR) is located to the east of Australia in water depths up to 3,000 m. The LHR is a 600 km wide and 1,600 km long continental ribbon that detached from eastern Gondwana by the Late Cretaceous. The driving forces that led to the breakup between the LHR and eastern Gondwana are not fully understood, but span two end-member processes: (1) slab rollback associated with back-arc extension; (2) a plume impinging the lithosphere.

To better understand the driving mechanism, a large set of marine geophysical data were acquired onboard the JAMSTEC vessel R/V Kairei in March–May 2016, in collaboration with Geoscience Australia. These data include:
* A 680 km long east-west oriented profile at ~27.2°S along which wide-angle seismic refraction data (~100 ocean-bottom seismometers (OBS)) were acquired conjointly with multi-channel seismic (MCS) reflection data;
* ~600 km of high-resolution 2D seismic reflection data at seven sites being
considered for IODP drilling;
*Multibeam bathymetry, gravity and magnetic data.

We present preliminary results obtained from a combined interpretation of OBS modeling and MCS along the east-west profile. The MCS profile produced a good image of the rift-fill sedimentary deposits and the acoustic basement from the Tasman Sea across the Dampier Ridge, the Middleton, Capel and Faust basins and the Lord Howe Platform to the east. With the OBS data, clear reflected arrivals from the basement and the mantle (Pn) are recorded at a very large offset (up to 250 km), with a strong Moho reflected arrival (PmP). Preliminary interpretation of these datasets suggests that the nature of the basement varies from oceanic crust to (thin?) continental crust, in agreement with previous geophysical studies of the area.

Further processing and modeling of the data will constrain the geometry of the main sedimentary basins and the nature of basement. This ongoing work is in support of an IODP proposal to drill through a rift basin and into the basement of the LHR. The processes of LHR crustal ribbon development will be investigated using rock cores recovered from up to 3,500 m below the seafloor.

Presented at the 2016 Seismological Society of Japan (SSOJ) Fall Meeting

Tags: EARTH SCIENCES, International Ocean Discovery Program, Lord Howe Rise, geophysics
Organization: Geoscience Australia Data
GA310 South West Margin 2D MSS, gravity line data

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. These line dataset from the GA310 South West Margin 2D MSS survey were acquired for Geoscience Australia in 2008/2009 as part of the Australian Government's Offshore Energy Security Program. This survey acquired a range of pre-competitive geological and geophysical data that included seismic reflection, gravity, magnetic and swath bathymetry measurements, as well as seafloor dredge samples. A total of 26,000 line-kilometres of magnetic and gravity data were acquired during this survey.

Tags: EARTH SCIENCES, GA310, GEOPHYSICS, Gravimetrics, Published_External, SW margin, South West Margin, gravity, line, marine, shipborne, vector
Organization: Geoscience Australia Data
Catchments - City of Greater Geelong

Drainage catchments are represented by polygon features. They indicate land areas where stormwater is collected by the natural landscape, draining to a particular point. The run-off eventually discharges into a waterway such as creek, river, lake, ocean, drainage or groundwater system.

Although all due care has been taken to ensure that these data are correct, no warranty is expressed or implied by the City of Greater Geelong in their use. Geographic Coordinate System: GCS_WGS_1984.

Tags: Asset, Environment, Infrastructure, Planning, drain, flood, pipes, pits, rain, water
Organization: City of Greater Geelong
Southern Grampians Model of Flaxseed Suitability 2050

Suitability model for the commodity of Flaxseed in 2050 in Southern Grampians Shire Council. As modelled through the Land Use Capability project by Deakin University for Southern Grampians Shire Council. Please see linked report for the full report and the scientific methods behind the models:
https://static1.squarespace.com/static/54f68ff0e4b023b479e4a746/t/555433cee4b0234e02cabf54/1431581646137/Land+Use+Capability+FINAL+REPORT.pdf


Tags: Agricultural Land Management, Agriculture, Climate change, Climatology Meteorology and Atmosphere, Commodities, Cropping, Environment, Farming, Grazing, Model, Suitability
Organization: Southern Grampians Shire Council
Bathymetry Flythrough Bremer Commonwealth Marine Reserve

Flythrough movie of Bremer Commonwealth Marine Reserve, southwest Western Australia showing bathymetry of Bremer Canyon, Hood Canyon, Henry Canyon and Knob canyon.

This research is supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub through Project D1.

Tags: Earth Sciences, Marine Biodiversity Hub, National Environmental Science Program, Published_External, marine
Organization: Geoscience Australia Data
Australian petroleum accumulations report. Gippsland Basin, Victoria

The Gippsland Basin in southeastern Victoria is Australia's major crude oil and natural gas producing province. To the end of 1986 the basin had supplied 88 per cent of Australia's cumulative crude oil production and 48 per cent of cumulative natural gas production. Crude oil and natural gas were first discovered onshore in 1924, near Lakes Entrance, Victoria. Since then over 125 onshore wells have been drilled, resulting in the discovery of one (1) subeconomic and six (6) uneconomic petroleum accumulations. More than 80 exploration and step-out wells have been drilled offshore, resulting in the discovery of eleven (11) economic, twenty-six (26) subeconomic and six (6) uneconomic petroleum accumulations.

The petroleum in the Gippsland Basin mainly occupies structural and structural/stratigraphic traps within the Oligocene, Eocene, Paleocene and Late Cretaceous marine, marginal marine and continental clastic sequences. The petroleum is believed to be of land-plant origin; crude oil results from thermal breakdown of exinite, and natural gas from thermal cracking of vitrinite and exinite.

The crude oils are generally very light and paraffinic, ranging from 40 to 60oAPI. Some heavier oils discovered at shallow depths range from 14.6 to 26.5oAPI and are thought to have been biologically degraded. The condensates range from 48 to 63oAPI. The natural gases are generally low in condensate content. Some gas reservoirs contain a high proportion of carbon dioxide.

Production of natural gas and oil commenced in 1969 and 1970 respectively. Cumulative production to 31 December 1986 was 344.66 x 106m3 of oil, 9.68 x 106m3 of condensate, 41.75 x 106m3 of LPG and 66.14 x 109m3 of sales gas. The oil and gas produced is transported from the twelve offshore production facilities (platforms) by pipeline to gas and crude oil stabilisation plant at Longford, Victoria for processing, and then to storage and distribution centres.

Estimated remaining recoverable petroleum reserves in the Gippsland Basin as at 31 December 1986 are 202.44 x 106m3 of oil, 22.44 x 106m3 of condensate, 44.89 x 106m3 of liquid petroleum gas, and 206.39 x 109m3 of sales gas.

Tags: AU-VIC, Earth Sciences, GA Publication, Published_External, Report, petroleum exploration, petroleum geology
Organization: Geoscience Australia Data
Application of entropy-ratio maps to surficial reef facies, Great Barrier Reef

Entropy-ratio maps enable mapping of surficial facies of coral reefs at any chosen resolution.  A ternary classification uses detritus, framework encrustation, and pavement as end-members, and is subdivided on the degree of mixing of these.  The classification is sensitive to all reef environments, particularly to zonation across reef flats.  It can also be superimposed on other classifications.  An example is given of its use in the Great Barrier Reef.

Tags: Earth Sciences, GA Publication, Journal, Published_External, QLD, marine
Organization: Geoscience Australia Data
AHO Reference Surfaces Cairns 0.5m 2023 (20230011R)

The Cairns Reference Surfaces bathymetry survey was acquired for the Australian Hydrographic Office (AHO) on 27 May 2020. This surface was created from a contracted national reference survey in Cairns QLD, collected for the purpose of calibrating multibeam echosounders.&nbsp;It was conducted for the Australian Hydrographic Office as part of the Hydroscheme Industry Partnership Program, acquired using R2Sonic 2022, and processed using Caris HIPS &amp; SIPS. Seperate grids in 0.5m resolution are provided for the three surveyed sites within this survey area in MSL, LAT and Ellipsoid vertical datum. The dataset was then exported as a 0.5m resolution, 32 bit floating point GeoTIFF grid of the survey area.

This dataset is not to be used for navigational purposes.

Tags: AusSeabed, EARTH SCIENCES, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, HVC_144641, Oceans, Published_External, bathymetric grids, bathymetry, marine, multibeam
Organization: Geoscience Australia Data
Magnetic Susceptibility, Calcium Carbonate and the Geochemical Composition of Sediments from the Australian Continental Margin

Several gravity cores from the west (3), south (3) and east (5) Australian continental margin have been sampled and analysed for magnetic susceptibility, percent calcium carbonate, Fe203, Al203 and Si02 (% wt) and other trace element contents. Thecores sampled from the west Australian continental margin were from the Exmouth Plateau, and the Carnarvon Terrace. Sampling from the south Australian continental margin was from the west Ceduna Terrace and the Eyre Terrace and the cores sampled from the east Australian continental margin were collected offshore Evans Head.

8180 isotope data on planktonic foraminifera have been used to provide a chronological control on those cores collected from the western margin, to determine sediment accumulation rates and identify Late Quaternary isotopic stages, includingthe last glacial maximum (LGM) and the last interglacial (LIG). These same data are not available from other areas surveyed although sedimentation rates of about 1cm/kyr have been estimated from 14C data from the eastern continental margin sediments offshore Evans Head.

The down-core total magnetic susceptibility profiles generally show similar patterns within each survey area. The magnetic susceptibility profiles for those cores from thewestern margin (Exmouth Plateau and Carnarvon Terrace) show relatively high valuesin the Holocene and around the LIG, and relatively low values during the LGM. Patterns of down-core variations in magnetic susceptibility could also be recognised
in gravity cores from the eastern margin offshore Evans Head. Here, magnetic susceptibilities were relatively high around the LIG (similar to the western margin), but magnetic susceptibility were low in Holocene sediments, perhaps because of diagenetic remobilisation of iron in the core-tops. In general no distinct patterns are recognisable in the down-core magnetic susceptibility profiles from the southern margin.

The down-core profiles of calcium carbonate from the west Australian continental margin show high values during the LGM, and minima in the Holocene and also during the LIG.Similarly, the down-core profile of calcium carbonate shows minimum values during the inferred LIG in eastern margin cores, although this interpretation is based on an approximate sedimentation rate. In general, total magnetic susceptibility is correlated with Al203, Si02 and Fe203, concentrations in sediments, indicating a control on magnetic susceptibility by terrigenous material contents. Calcium carbonate was found tobe a diluent for magnetic susceptibility in these continental margin sediments.

Tags: AU-EEZ, Earth Sciences, GA Publication, Published_External, Record, marine, marine survey
Organization: Geoscience Australia Data