AndreaBozzo/ceres-open-data-index huggingface dataset:
Offshore Petroleum and Greenhouse Gas Storage Act 2006 - Australian Maritime Boundaries 2020 (AMB2020) - Geodatabase

Geoscience Australia has the primary role in the delineation of Australia's domestic and international maritime limits and boundaries. An output of this activity is the development of the Australian Maritime Boundaries (AMB) data. AMB2020 is a GIS data product, replacing AMB2014a, providing access to the data for Australia's maritime zones. Offshore Petroleum and Greenhouse Storage Act 2006 - Australian Maritime Boundaries Dataset 2020 is a digital representation of the scheduled and offshore areas defined under this Act. In the event of an inconsistency between AMB data and the limits under any legislation, the latter prevails. The data have been published by Geoscience Australia in consultation with other relevant Commonwealth Government agencies including the Attorney-General's Department, the Department of Foreign Affairs and Trade and the Australian Hydrographic Office. 

The AMB2020 version has been updated to reflect the 2018 Timor Sea Treaty, including the Bayu-Undan Offshore Area.

Offshore Petroleum and Greenhouse Storage Act 2006 - Australian Maritime Boundaries Dataset 2014 comprise the scheduled and offshore areas defined under the Act. AMB Data can also be viewed on-line via AMSIS (http://www.ga.gov.au/marine/jurisdiction/amsis.html). Product Specifications Coverage: Australia including all external territories Currency: August 2019. Coordinates: Geographical Datum: GDA94 (functionally equivalent to WGS84). Format: ESRI Geodatabase and REST web service - free online.

The area of coverage of the AMB data is for the whole of the Australian marine jurisdiction which includes waters adjacent to the mainland, offshore islands and External Territories.  The geographical extent is approximately between the latitude limits of 8 S to 70 S and the longitude limits 39 E to 174 E.

This dataset includes the following disclaimers:
AMB data is a digital representation of the territorial sea baseline and of the outer limits of Australia's maritime zones.  The baseline and zones are established under the Offshore Petroleum and Greenhouse Storage Act 2006.  In the event of an inconsistency between AMB data and the areas under the legislation, the latter prevails.

Tags: AU, GIS Dataset Thematic, Geospatial Information Systems, HVC_144653, Published_External, marine
Organization: Geoscience Australia Data
Southwest Margin Surveys - Information Sheet

As part of Geoscience Australia's Southwest Margin Project, two major marine surveys were undertaken (from October 2008 to February 2009) to investigate the resource potential of deep-water frontier areas on the southwest Australian continental margin.
<ol>
<li>Southwest Australian Margin Regional Marine 2D Seismic Survey (S310) - Areas covered by the seismic survey include the Mentelle Basin, North Perth Basin (Zeewyck and Houtman Sub-basins), Southern Carnarvon Basin and the Wallaby Plateau. Data acquired: 7300 kilometres of 2D seismic (12 second record length, 8 km solid streamer), gravity and magnetic data.</li>
</ol>

In addition to the new seismic reflection data, Geoscience Australia has reprocessed selected open-file industry seismic lines in the offshore Northern Perth Basin (11,700 line km) that provides ties to most wells in the Abrolhos and Houtman sub-basins.
<ol>
<li>Southwest Australian Margin Marine Reconnaissance Survey - The marine reconnaissance survey investigated the geology and marine environments of the offshore North Perth and Southern Carnarvon Basins and the Wallaby Plateau. Data acquired: multibeam swath bathymetry (230,000 km2), gravity and magnetics (25,000 line km), sub-bottom profiler (25,000 line km), geological samples (190 rocks from 53 dredge sites)</li>
</ol>

Tags: AU-WA, Earth Sciences, Promotional Material, Published_External, bathymetry, marine, seismic sections, seismics
Organization: Geoscience Australia Data
Sedimenary Processes in the Wilkes Land Margin: A Record of Cenozoic East Antarctic Ice Sheet Evolution

Multichannel seismic data collected off Wilkes Land (East Antarctica) reveal four main units that represent distinct phases in the evolution of the Cenozoic depositional environment. A Cretaceous synrift succession is overlain by hemipelagic and distal terrigenous sequences deposited during Phase 1. Sediment ridges and debris-flow deposits mark the transition to Phase 2. Unit 3 records the maximum sediment input from the continent and is characterized by the predominance of turbidite deposits. During Phase 4 the sediment supply from the continental margin was reduced, and draping and filling were the dominant processes on the continental rise. Unit 4 also contains the deposits of sediment wave fields and asymmetric channel-levee systems. These four units are a response to the Cenozoic evolution of the East Antarctic Ice Sheet. During Phase 1, small ice caps were formed in the innermost continental areas. The ice volume increased under temperate glacial regimes during Phases 2 and 3, when large volumes of melt-water production led to high sediment discharge to the continental rise. Change to a polar regime occurred through Phase 4, when a thick prograding wedge developed on the continental shelf and slope and the sediment transport to the rise diminished, producing general starvation conditions.

Tags: AQ, Antarctic data, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, marine, sedimentology
Organization: Geoscience Australia Data
Petroleum prospectivity and CO2 storage assessment in the offshore Browse Basin, North West Shelf, WA/AC

Under the National CO2 Infrastructure Plan (NCIP) and the National Low Emissions Coal Initiative (NLECI), Geoscience Australia undertook multi-purpose basin analysis to address dual priorities to assess long-term CO2 storage potential while simultaneously provides new insights into hydrocarbon prospectivity. The Browse Basin assessment is part of this five year program and provides better understanding of basin-scale storage potential and new insights into hydrocarbon prospectivity to manage the potential resource conflicts. 

The Browse Basin is a northeast-trending Paleozoic to Cenozoic depocentre situated offshore on Australia's North West Shelf and is being actively explored for hydrocarbons. It hosts large undeveloped gas and condensate accumulations, and is soon to become Australia's next major conventional liquefied natural gas (LNG) province. The basin was identified as potentially suitable for offshore geological storage of CO2 due to its favourable geological setting on a passive margin, and its proximity to offshore gas resources that can contain high amounts of naturally occurring CO2. 

The multi-purpose basin approach in the Browse Basin included the acquisition and integration of pre-competitive data derived from an airborne magnetic survey, two marine surveys, and the geochemical analysis of oils, gases and rocks, provided by industry through the Offshore Petroleum Titles Administrator (NOPTA)-managed repository. All of this precompetitive data had applications towards, and addressed questions relevant, to the assessment of both CO2 storage potential and hydrocarbon prospectivity. 

The concurrent basin analysis research provided a new understanding of the basin's Cretaceous succession based on an integrated sequence stratigraphic analysis of 60 wells and an extensive set of industry and government 2D and 3D seismic reflection data. The basin's tectonostratigraphic framework was updated, and the integration of revised biostratigraphic data enabled an improved understanding of variations in depositional facies and the spatial distribution of reservoir, seal, and source rock (condensed) sections. The outputs include models and maps of environments of deposition, petroleum systems and play fairways. 

Consequently, prospective CO2 storage sites throughout the succession were identified in areas that were least likely to conflict with hydrocarbon exploration. Results from this pre-competitive project will improve future storage site selection in suitable reservoirs for the commercial deployment of CCS technology, and will promote new hydrocarbon exploration opportunities.

Tags: Earth Sciences, External Publication, Published_External
Organization: Geoscience Australia Data
Seabed gravel, mud and sand content in the Browse region in the Australian continental EEZ 2014

This dataset provides the spatially continuous data of seabed gravel (sediment fraction &gt;2000 Âµm), mud  (sediment fraction &lt; 63 Âµm) and sand content (sediment fraction 63-2000 Âµm) expressed as a weight percentage ranging from 0 to 100%, presented in 0.0025 decimal degree (dd) resolution raster grids format and ascii text file. 

The dataset covers the Browse region in the Australian continental EEZ.

This dataset supersedes previous predictions of sediment gravel, mud and sand content for the basin with demonstrated improvements in accuracy. Accuracy of predictions varies based on density of underlying data and level of seabed complexity. Artefacts occur in this dataset as a result of insufficient samples in relevant regions. This dataset is intended for use at the basin scale. The dataset may not be appropriate for use at smaller scales in areas where sample density is insufficient to detect local variation in sediment properties. To obtain the most accurate interpretation of sediment distribution in these areas, it is recommended that additional samples be collected and predictions updated.

Tags: Environmental Science and Management, GIS Dataset, Published_External, marine
Organization: Geoscience Australia Data
Laboratory Methods for Evaluating Migrated High Molecular Weight Hydrocarbons in Marine Sediments at Naturally Occurring Oil Seeps

A laboratory study has been conducted to determine the best methods for the detection of C10 to C40 hydrocarbons at naturally occurring oil seeps in marine sediments.  The results indicate that a commercially available method using hexane to extract sediments and gas chromatography to screen the resulting extract is effective at recognizing the presence of migrated hydrocarbons at concentrations between 50 to 5,000 ppm.  When the oil charge is unbiodegraded the level of charge is effectively tracked by the sum of n-alkanes in the gas chromatogram.  However, once the charge oil becomes biodegraded, with the loss of n-alkanes and isoprenoids, the level of charge is tracked by the quantification of the Unresolved Complex Mixture (UCM).  The use of GC-MS was also found to be very effective for the recognition of petroleum related hydrocarbons and results indicate that GC-MS would be a very effective tool for screening samples at concentrations below 50 ppm oil charge.

Tags: Earth Sciences, External Publication, Published_External, geochemistry, marine, organic geochemistry
Organization: Geoscience Australia Data
The new normal for geoscience in a post-COVID world: connecting informed people with the Earth

We consider how our society can use data, information and knowledge of the Earth under a broad definition of geoscience to better connect with the Earth system.  This is important in our changing world, in particular how geoscience contributes to our response to the societal impacts of the COVID-19 pandemic. Ultimately, informed decisions utilizing the best geoscience data and information provide key parts of our economic, environmental and cultural recovery from the pandemic. The connection to country and more widely connection to our planet and the greater Earth system that comes from personal experience has been especially challenged in 2020. Much of Australia’s population have been encouraged to stay in our homes, first because of major fires and more recently in response to isolation from the COVID-19 pandemic. Although domestic travel became increasingly allowable, international travel has been restricted for much longer.  This has increased the importance of trusted data and information initially from domestic locations and for more extended time between countries that are now less accessible. We discuss ways that geoscience governs our discovery and use of minerals, energy and groundwater resources and builds resilience and adaptation to environmental and cultural change. A broad definition of geoscience also includes positioning and location data and information, such as through integrated digital mapping, satellite data and real-time precise positioning. Important here is sharing, with two-way exchange of data, information and knowledge about the Earth, through outreach in geoscience education programs and interactions with communities across Australia, into neighboring countries in Asia and the Pacific, and across the world. An aspiration is for geoscience to inform social license through evidence-based decisions, such as for land and marine access, for a strong economy, resilient society and sustainable environment. At Geoscience Australia, we have developed a ten years strategic plan (Strategy 2028) that guides us to be a trusted source of information on Australia’s geology and geography for government, industry and community decision making. This will contribute to a safer, more prosperous and well-informed Australia and its connection to neighbouring countries, such as in Asia, as well as people that are better connected to country and our planet.

<b>Citation:</b> Hill, S., Thorne, J., Przeslawski, R., Mouthaan, R., Lewis, C. The 'new normal' for geoscience in a post-COVID world: connecting informed people with the Earth. <i>Thai Geoscience Journal</i> Volume 2 (2) 2021, p30-37 021 ISSN-2730-2695; DOI-10.14456/tgj.2021.3

Tags: EARTH SCIENCES, Published_External, community education and outreach, earth system science, environment, geoscience, mapping, resource
Organization: Geoscience Australia Data
Benthic Marine Bioregionalisation of Australia's Exclusive Economic Zone: A Report to the National Oceans Office on the Development of a National Benthic Marine Bioregionalisation in support of Regional Marine Planning

The benthic (sea floor) component of the National Marine Bioregionalisation covers the 80% of Australia's Exclusive Economic Zone that lies beyond the continental shelf break. It provides a description of patterns of biological distributions and physical habitats on the seafloor.

The Benthic Bioregionalisation Report is a technical document describing how the benthic bioregions were created. It includes descriptions of all the datasets used, details of each bioregion, and examples of how the physical data may be used to sub-divide the marine bioregions for management. An evaluation of the benthic bioregionalisation including strengths, weaknesses and future work is also contained in the report.

Tags: AU-EEZ, Earth Sciences, External Publication, Published_External, Report, marine, marine survey
Organization: Geoscience Australia Data
Marine geology of the Huon Gulf region, New Guinea

The Solomon Sea is a semi-enclosed oceanic basin bordered by technically active land masses: its morphology is dominated by an arcuate trough, the New Britain Trench, which bounds the basin on its northern side and is over 8000 metres deep. Density of soundings is sufficient to reveal a large scale left-lateral displacement near the western end of the New Britain Trench; this appears to be a continuation of the onshore Markham-Ramu Lineament. The same structure controls the position of the Markham submarine canyon, which is the major conduit feeding sediment to the ocean basin. No continental shelf is developed along the northern margin of the Huon Gulf owing to the strong and continuing uplift of the Huon Peninsula, which lies within the Northern New Guinea Arc structural province. South of Lae, however, a narrow continental shelf is present. Seismic reflection profiles reveal that this shelf is a geologically young constructional feature, composed in its upper levels of a coalescing series of deltaic deposits. In some areas these can be seen resting directly on non-sedimentary basement. Several submarine canyons cross the shelf and each is closely related to a large river onshore. The seismic records clearly show truncation of strata by the canyon walls: however, it is postulated that upgrowth of the shelf around the canyons, with occasional slumping along the rims, as well as axial downcutting by abrasive sediment flowage, have controlled the formation of the canyons. Their steep axial gradients, which average about 5Â° compared with the shelf surface which slopes seaward at only 1Â°, are taken to indicate that the canyons were initiated before the Pleistocene and have maintained their courses during the upward and outward growth of the deltaic deposits forming the present day continental shelf.

Tags: Bulletin, Earth Sciences, GA Publication, PG, Published_External, geology, marine, marine survey
Organization: Geoscience Australia Data
SI 1014 Lacepede Channel, WA (HIPP) Bathymetry Acquisition (20210013S)

The Lacepede Channel bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Pacific Conquest and USV Blue Shadow - 901 during the period 19 May 2021 – 22 Sep 2021. This was a contracted survey conducted for the Australian Hydrographic Office by Fugro as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Lacepede Channel, Western Australia. Bathymetry data was acquired using a Kongsberg EM2040 Mk II, and processed using Caris Hips &amp; Sips processing software. The dataset was then exported as a 30m 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, LiDAR, MV Pacific Conquest, Multibeam, Oceans, Published External, Published_External, USV Blue Shadow 901, VH-VEH Cessna 441, bathymetric grids, bathymetry, marine, multibeam
Organization: Geoscience Australia Data
Coastal Environment Geoscience of Cape York Peninsula

The NR14, Coastal Environment Geoscience Survey project utilises a wide variety of information and techniques to compile the basic coastal geoscientific information necessary for the development of a land use strategy for Cape York Peninsula. The report therefore provides a statement of the methodology employed, together with results of the data analyses undertaken and coastal geoscience GIS coverages completed to date.

The project was undertaken to produce a geoscientific synthesis of the evolution and character of the coastal zone of Cape York Peninsula to include:
<ul>
<li>assessment of the oceanographic and meteorological processes affecting the coastal area;</li>
<li>documentation of the character of coastal environments and the nature of sedimentary deposits within them;</li>
<li>analysis of Holocene evolution of the coastal zone;</li>
<li>identification of areas of significant instability; and</li>
<li>consideration of issues relevant to sustainable use.</li>
</ul>

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Report, marine
Organization: Geoscience Australia Data
Marine Seismic Survey Shape and Kml Files - 2014 Version

Geoscience Australia is releasing its 2014 version of the Marine Seismic Surveys Shape and Kml files. These files have been updated to include recent openfile surveys. The spatial files have been created from a cleansed, updated collection of p190 navigation files. This navigation collection has grown from the checking of navigation submitted to the GA Repository under the Offshore Petroleum and Greenhouse Gas Storage Regulations, checking of the 2003 SNIP navigation files and the digitisation of old survey track maps as required. Soon the individual p190 files will be available for download through the new NOPIMS delivery system. The collection is based on P190 navigation files which follows the UKOOA standard. Extensive industry standard metadata associated with a seismic survey is preserved in the attribute tables of these datasets. 

The shapefiles have been categorised into 3D exploration, 2D exploration and 2D investigative seismic files. All marine surveys undertaken by Geoscience Australia for exploration or investigative purposes have been included in the collection. Geoscience Australia (email - AusGeodata@ga.gov.au) appreciates being notified of any errors found in the navigation collection.

The data is available in both KML and Shape file formats.

The KML file can be viewed using a range of applications including Google Earth, NASA WorldWind, ESRI ArcGIS Explorer, Adobe PhotoShop, AutoCAD3D or any other earth browser (geobrowser) that accepts KML formatted data.

Alternatively the Shape files can be downloaded and viewed using any application that supports shape files.

Disclaimer: Geoscience Australia gives no warranty regarding the data downloads provided herein nor the data's accuracy, completeness, currency or suitability for any particular purpose. Geoscience Australia disclaims all other liability for all loss, damages, expense and costs incurred by any person as a result of relying on the information in the data downloads.

Tags: AU, Earth Sciences, GIS Dataset, National, Published_External, marine
Organization: Geoscience Australia Data
Ravensthorpe airborne magnetic and radiometric survey, Western Australia 1960

An airborne magnetic and radiometric survey in the Ravensthorpe district of Western Australia was flown by the Bureau of Mineral Resources in November 1960. The survey operation is described and a preliminary analysis is made of the results. The magnetic results are shown to correlate with known structural features and to assist in the geological mapping of the area.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, geomagnetism, geophysics
Organization: Geoscience Australia Data
5028 Block 1 (Southwest) Grid of thorium ground concentration with NASVD and standard reductions applied

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). 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 radiometric thorium grid has a cell size of  degrees (approximately 20m) and shows thorium element concentration of the Narryer in units of parts per million (or ppm). The data used to produce this 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.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NCI, Published_External, Th, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 5028, thorium
Organization: Geoscience Australia Data
Australia's Maritime Jurisdiction off the Australian Antarctic Territory (Centre)

Map showing Australia's Maritime Jurisdiction off the central portion of the Australian Antarctic Territory.
One of the 27 constituent maps of the "Australia's Maritime Jurisdiction Map Series" (GeoCat 71789).
Depicting Australia's extended continental shelf approved by the Commission on the Limits of the Continental Shelf in April 2008 and various maritime zones.  Background bathymetric image is derived from a  grid by Smith and Sandwell, 1997.  Background land imagery derived from Blue Marble, NASA's Earth Observatory.
A0 sized .pdf downloadable from the web.

Tags: AQ, Administrative Boundary, Earth Sciences, Published_External, Thematic Map, administrative boundaries, bathymetry, continental shelf, marine jurisdiction
Organization: Geoscience Australia Data