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  • This service represents a combination of two data products, the DEM_SRTM_1Second dataset and the Australian_Bathymetry_Topography dataset. This service was created to support the CO2SAP (Co2 Storage application) Project to create a transect elevation graph within the application. This data is not available as a dataset for download as a Geoscience Australia product. The DEM_SRTM_1Second service represents the National Digital Elevation Model (DEM) 1 Second product derived from the National DEM SRTM 1 Second. The DEM represents ground surface topography, with vegetation features removed using an automatic process supported by several vegetation maps. eCat record 72759. The Australian_Bathymetry_Topography service describes the bathymetry dataset of the Australian Exclusive Economic Zone and beyond. Bathymetry data was compiled by Geoscience Australia from multibeam and single beam data (derived from multiple sources), Australian Hydrographic Service (AHS) Laser Airborne Depth Sounding (LADS) data, Royal Australian Navy (RAN) fairsheets, the General Bathymetric Chart of the Oceans (GEBCO) bathymetric model, the 2 arc minute ETOPO (Smith and Sandwell, 1997) and 1 arc minute ETOPO satellite derived bathymetry (Amante and Eakins, 2008). Topographic data (onshore data) is based on the revised Australian 0.0025dd topography grid (Geoscience Australia, 2008), the 0.0025dd New Zealand topography grid (Geographx, 2008) and the 90m SRTM DEM (Jarvis et al, 2008). eCat record 67703. IMPORTANT INFORMATION For data within this service that lays out of the Australian boundary the following needs to be considered. This grid is not suitable for use as an aid to navigation, or to replace any products produced by the Australian Hydrographic Service. Geoscience Australia produces the 0.0025dd bathymetric grid of Australia specifically to provide regional and local broad scale context for scientific and industry projects, and public education. The 0.0025dd grid size is, in many regions of this grid, far in excess of the optimal grid size for some of the input data used. On parts of the continental shelf it may be possible to produce grids at higher resolution, especially where LADS or multibeam surveys exist. However these surveys typically only cover small areas and hence do not warrant the production of a regional scale grid at less than 0.0025dd. There are a number of bathymetric datasets that have not been included in this grid for various reasons.

  • A Microsoft Excel spreadsheet with all gravity data used in forward modelling. The data was downloaded from GADDS (Geophysical Archive Data Delivery System): see link.

  • Double-sided map showing location of Australia's oil and gas fields and relevant pipelines and infrastructure

  • The Browse Basin is a proven hydrocarbon province hosting gas with associated condensate on Australia’s North West Shelf. Geoscience Australia has undertaken a multi-disciplinary study to identify the various hydrocarbon sources and high-graded areas of increased liquids prospectivity within a primarily gas-prone province. Updated biostratigraphy, well correlations, seismic and paleogeographic and play fairway interpretations were completed for ten Hettangian to Maastrichtian supersequences. These data together with geochemical analyses were integrated into a regional petroleum systems model to better understand source rock distribution, character, generation potential and play prospectivity. Isochore maps and depositional environmental models suggest multiple source rock units in compartmentalised Jurassic–Cretaceous source pods resulting in four geochemically distinct petroleum systems. Source pod location is influenced by regional basin architecture and entrenched fluvial systems forming a complex network of sedimentary inputs to the basin. Gas generated by the Lower–Middle Jurassic source rocks within the J10–J20 supersequences (Plover Formation) have migrated through the basin and accumulated at multiple stratigraphic levels. The Jurassic J10–J50 supersequences (Plover and lower Vulcan formations) in the Heywood Graben have generated fluids of a different composition to those elsewhere in the basin, and are most similar to a petroleum system in the neighbouring Bonaparte Basin. Gases with the highest liquid content are reservoired within the K10 supersequence (Brewster Member, Vulcan Formation) in the Ichthys/Prelude and Burnside accumulations. These fluids are probably sourced by shales of the Upper Jurassic–Lower Cretaceous J40–K10 supersequences (Vulcan Formation) encasing the K10 sandstone reservoir. Marine Lower Cretaceous source rocks in the K20–K30 supersequences (Echuca Shoals Formation) have sourced oil and gas in Cretaceous reservoirs of the Caswell Sub-basin and on the Yampi Shelf. The latter accumulations contain a mixture of Cretaceous oil mixed with gas generated by higher maturity Jurassic source rocks. A proposed scenario is that these Cretaceous-sourced liquids were mobilised and carried to the shelf edge by co-migrating Plover-derived gas with subsequent biodegradation and leakage. These results open up shallow liquid-prone plays, in the southern Caswell Sub-basin and on the basin margins.

  • Exploring for the Future (EFTF) is a four-year geoscience data and information collection programme that aims to better understand on a regional scale the potential mineral, energy and groundwater resources that are concealed under cover in northern Australia and parts of South Australia.

  • This Agreements ontology is designed to model 'agreements' which are social contracts that include: licenses, laws, contracts, Memoranda of Understanding, standards and definitional metadata. Its purpose is to support data sharing by making explicit the relationships between agreements and data and agreements and Agents (people and organisations). Eventually it will also help with the interplay between different classes of agreements. We think of this ontology as a 'middle' ontology, that is one which specializes well-known, abstract, upper ontologies and is able to be used fairly widely but is expected to be used particular contexts in conjunction with detailed, domain-specific, lower ontologies. We have tried to rely on: existing agent, data manipulation, metadata and licence ontologies where possible. As such we specialise the ORG and FOAF ontologies; the PROV ontology; the Dublin Core Terms RDF schema & DCAT ontology; and the ODRS vocabulary & Creative Commons RDF data models for those areas, respectively

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    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. This Cape York Gravity Survey, Qld, 2009 (P200940), Bouguer 1VD grid is a first vertical derivative of the Bouguer anomaly grid for the Cape York Gravity Survey, Qld, 2009 (P200940) survey. This gravity survey was acquired under the project No. 200940 for the geological survey of QLD. The grid has a cell size of 0.0075 degrees (approximately 820m). A total of 9244 gravity stations were acquired to produce the original grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid.

  • Exploring for the Future (EFTF) is a four-year geoscience data and information collection programme that aims to better understand on a regional scale the potential mineral, energy and groundwater resources that are concealed under cover in northern Australia and parts of South Australia. This factsheet explains one of a range of activities being undertaken to collect these data and information.

  • A preliminary version of the assessment of unconventional resources potentially contained in the Otway Basin. This version will be updated at a later date.

  • This service provides Australian surface hydrology, including natural and man-made features such as water courses (including directional flow paths), lakes, dams and other water bodies. The information was derived from the Surface Hydrology database, with a nominal scale of 1:250,000. The service contains layer scale dependencies.