AndreaBozzo/ceres-open-data-index huggingface dataset:
Towards a regional understanding of Sherbrook Supersequence Gross Depositional Environments, offshore Otway Basin

The Sherbrook Supersequence (Campanian–Maastrichtian) is the youngest of four Cretaceous supersequences in the Otway Basin and was deposited during a phase of crustal extension. Supersequence thickness is typically less than 1000 ms TWT across the inboard platform. Beyond the platform edge up to 2 800 ms TWT of Sherbrook sediments were deposited in the deep-water Morum and Nelson sub-basins. Analysis of wireline-logs and cores from wells yielded fluvial, deltaic, coastal shelf gross depositional environments (GDEs). As the number of regionally mappable seismic facies is much less than the number of well-based GDEs, the integration of well-based environmental interpretations with seismic facies resulted in three main regional GDE (RGDE); Fluvial Plain, Coastal/Delta Plain, and Shelf. The Fluvial Plain and Coastal/Deltaic RGDEs are almost entirely restricted to the inboard platform areas of the basin. The mud-prone Shelf RGDE is widespread across the deep-water part of the basin where it forms the depocentres of the Morum and Nelson sub-basins. The Shelf RGDE is well imaged on the Otway 2020 2D seismic data that was acquired over the deep-water Otway Basin. In the Morum Sub-basin, the Shelf RGDE is strongly influenced by growth on extensional faults. In contrast, the Shelf RGDE in the Nelson Sub-bsin is a relatively unstructured progradational complex. The presence of mass-transport and incision complexes are consistent with active tectonism during Sherbrook deposition. Reservoir rocks in the deep-water basin are best developed in the Coastal/Deltaic RGDE where it encroaches into the Morum Sub-basin, and where the Austral 3 petroleum system was potentially active within the Sherbrook Supersequence.&nbsp;
This presentation was given at the 2023 Australasian Exploration Geoscience Conference (AEGC) 13-18 March, Brisbane (https://2023.aegc.com.au/)

Tags: Otway Basin, Published_External, Sherbrook Supersequence, Stratigraphy (incl. biostratigraphy, gross depositional environment, seismic facies, sequence stratigraphy and basin analysis)
Organization: Geoscience Australia Data
Mount Rose 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Rocks from volcanoes (education video)

Have you ever wondered what lava looks like when it cools down? This short video introduces rocks from volcanoes and their features using some of the samples in the Geoscience Australia Education Centre. Viewers are shown different types of lava rock, bombs, obsidian and pumice. The video is suitable for middle primary and older students as well as a general audience; it introduces some technical terms and uses samples available for school students to handle during visits to the Centre.

Tags: EARTH SCIENCES, Published_External, Volcanoes, Volcanology, classroom resource, education, lava, pumice, video
Organization: Geoscience Australia Data
Balranald 1:250 000 GIS Dataset

This data is part of the series of maps that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. 
Data is downloadable in various distribution formats.

Tags: 250K scale, AU-NSW, AU-VIC, Earth Sciences, GIS Dataset, Published_External, dataset, topography
Organization: Geoscience Australia Data
Australian Antarctic Geomagnetism and the South Magnetic Pole

The peak of the 11-year solar cycle results in increased geomagnetic activity which is evidenced by significant geomagnetic storms and frequent aurora sightings at lower latitudes. The importance of understanding and monitoring the Earth's magnetic field during these periods is emphasised due to the key role it plays in applications such as navigation, mineral exploration, natural hazard mitigation, space weather monitoring, and scientific research. 

Australia has made significant contributions to the science of geomagnetism through early exploration and long-term monitoring, particularly in the Australian and Australian Antarctic Territories. This article details the operations of Geoscience Australia (GA), which manages a network of 10 geomagnetic observatories, including three in the Australian Antarctic and sub-Antarctic regions. It also explores the concept of the South Magnetic Pole, its historical measurements, and its movement over time. 

This article published in the Aurora journal is being distributed with permission from the Australian National Antarctic Research Expeditions (ANARE) Club.

Tags: Antarctica, Magnetism and Palaeomagnetism, geomagnetism, magnetic pole
Organization: Geoscience Australia Data
Tanami Gravity CR20050496 (P200587), gravity point 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.
 This Tanami Gravity CR20050496 (P200587) contains a total of 2356 point data values acquired at a spacing of 1000 metres. The data is located in NT and were acquired in 2005, under project No. 200587 for Newmont Exploration Pty Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NT, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 200587
Organization: Geoscience Australia Data
Narromine 1:250 000, R502 historical topographic map

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

Tags: 250K scale, AU_NSW, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
GSWA Menzies South TMI Grid Geodetic

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 GSWA Menzies South TMI Grid Geodetic has a cell size of 0.00021 degrees (approximately 22m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 2013 by the WA Government, and consisted of 93645 line-kilometres of data at 100m line spacing and 50m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, TMI, WA, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 1262, total magnetic intensity
Organization: Geoscience Australia Data
Exploring Australian Hazard Map Exceedance Using an Atlas of Historical ShakeMaps

This paper explores several area-based tests of long-term seismic hazard forecasts for the Australian continent. Using the observed seismicity, ShakeMaps are calculated for earthquakes that are expected to have generated moderate-to-high levels of ground shaking within continental Australia in the past 50 years (January 1972 through December 2021). A “composite ShakeMap” is generated that extracts the maximum peak ground acceleration “observed” in this 50-year period for any site within the continent. The fractional exceedance area of this composite map is compared with four generations of Australian seismic hazard maps for a 10% probability of exceedance in 50 years (~1/500 annual exceedance probability) developed since 1990.


In general, all these models appear to forecast higher seismic hazard relative to the ground motions that are estimated to have occurred in the last 50 years, with the most recent hazard model yielding a fractional exceedance area most similar to the target 1/500 annual exceedance probability. The sensitivity of these results to various modeling assumptions was tested by exploring an alternative ground-motion characterization model that forecasts higher overall ground-shaking intensities.&nbsp;The sensitivity of these results is also tested with the interjection of a rare scenario earthquake with an expected regional recurrence of approximately 8,700 years. While these area-based analyses do not provide a robust assessment of the performance of the candidate seismic hazard for any specific location given the limited independent data, they do provide—to the first order—a guide to the performance of the respective maps at a continental scale
Citation:
Allen TI, Ghasemi H, Griffin JD. Exploring Australian hazard map exceedance using an Atlas of historical ShakeMaps. Earthquake Spectra. 2023;39(2):985-1006. doi:10.1177/87552930231151977

Tags: NSHA18, Published_External, Seismology and Seismic Exploration, earthquake hazard, ground-motion exceedance, seismic design
Organization: Geoscience Australia Data
GSV Colac West VIMP Vic magnetic grid geodetic

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 GSV Colac West VIMP Vic magnetic grid geodetic has a cell size of 0.0005 degrees (approximately 49m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1999 by the VIC Government, and consisted of 158294 line-kilometres of data at 200m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, TMI, VIC, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 761, total magnetic intensity
Organization: Geoscience Australia Data
Awurriyarra 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Observing Australian natural hazards through satellite imagery - Classroom activities using Digital Earth Australia (DEA)

This document steps teachers and students through accessing and using satellite data on the Digital Earth Australia (DEA) Portal, with a particular focus on bushfires and flood events. The document is intended to be followed with the DEA portal open so teachers and students can explore the data using the links provided in the guide. The document also provides brief background information on how spectral satellites operate and how various bands of the electromagnetic spectrum can deliver useful data.

Tags: Bushfires, Classroom activities, Digital Earth Australia (DEA), Education, Educational Product, Floods, OTHER EDUCATION, Published_External, earth observation, natural hazards, satellite imagery
Organization: Geoscience Australia Data
A new late Pleistocene diprotodontid (Marsupialia) from Pureni, Southern Highlands Province, Papua New Guinea

A new zygomaturine diprotodontid, Hulith erium tomasellii gen. et sp. nov., from 38 000-year-old swamp sediments at Pureni, Southern Highlands Province, Papua New Guinea is the largest mammal yet known from the Quaternary of New Guinea. Possibly the sister taxon to species of Zygomaturus, the new genus is represented by a partial skull and parts of the postcranial skeleton.  Estimated to have weighed 75-200 kg, H. tomasettii was probably a browser.  Its hindlimb morphology suggests that it had a greater joint mobility than is known in any other diprotodontid, and this in turn hints that it was probably not graviportal.

Tags: Earth Sciences, GA Publication, Journal, PNG, Published_External
Organization: Geoscience Australia Data
Flinders Commonwealth Marine Reserve (GA0337)

This resource contains multibeam bathymetry data for the continental shelf area of Flinders Commonwealth Marine Reserve, northeast Tasmania. Multibeam data were collected by Geoscience Australia and University of Tasmania during the period of 24 June - 07 July 2012 onboard the RV Challenger using a Kongsberg EM3002 multibeam sonar. The Flinders Marine Reserve survey was led by Dr. Scott Nichol (Geoscience Australia). The survey was conducted to broadly classify the seabed into hard (bedrock reef), soft (sedimentary) and mixed substrate types at select locations across the shelf. The dataset contains a 2m-resolution, 32-bit floating point GeoTIFF file of the bathymetry in the study area derived from the processed EM3002 bathymetry data, using Caris HIPS and SIPS software.
Attribution statement: Data was sourced from the NERP Marine Biodiversity Hub. The Marine Biodiversity Hub is supported through funding from the Australian Government's National Environmental Research Program (NERP), administered by the Department of Sustainability, Environment, Water, Population and Communities (DSEWPAC).
This dataset is not to be used for navigational purposes.
This dataset is published with the permission of the CEO, Geoscience Australia.

Tags: AU-TAS, AusSeabed, Bathymetry, Bathymetry Grid, Continental shelf, EARTH SCIENCES, Earth Sciences, HVC_144641, Marine, Marine Data, Multibeam, NERP, NERP Marine Biodiversity Hub, Published_External
Organization: Geoscience Australia Data
A53503 Gravity Points Trenton Area 1996, WA, A53503 (P199660), gravity point 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.
 This A53503 Gravity Points Trenton Area 1996, WA, A53503 (P199660) contains a total of 2 point data values acquired at a spacing of 900 metres. The data is located in WA and were acquired in 1996, under project No. 199660 for Normandy Exploration Pty Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199660
Organization: Geoscience Australia Data
Ceduna Offshore Resource Map Series 1:1m

Bathymetric map showing geological features with contours in metres. Includes Australian Fishing zone limit, seismic survey lines, petroleum exploration wells, for seabed south of Ceduna, to Spencer Culf, S. Aust.
Index to adjoining sheets, reliability diagram and locality map.
Project coordination by C.R. Johnston, J. Williams, B. Willington ; data compilation D. Jongsma, H.L. Davies.
"A joint project of the Hydrographic Service, RAN, Department of Defence, the Bureau of Resource Sciences and the Australian Geological Survey Organisation".

Tags: AU-SA, Bathymetry Map, Marine Geoscience, Marine Map, Published_External, marine
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sb49-16)

AUSGeoid98 data files contain a 2 minute grid of AUSGeoid98 data covering the Australian region, which you can use to interpolate geoid-ellipsoid separations for the positions required.You can use your own interpolation software, or you can use Geoscience Australia's Windows Interpolation software (Winter). The data files are text files in a standard format that cover the same area as standard topographic map areas. Files covering both 1:250,000 (approximately 100 x 150 km) and 1:1,000,000 (approximately 400 x 600 km) map areas are available. There is a 4 minute overlap on all sides of each area. Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places. AUSGeoid98 deflections of the vertical were computed from the geoid-ellipsoid separation surface, while the AUSGeoid93 deflections of the vertical were computed from OSU91A.

Tags: AU, AUSGeoid98, Geodesy, Geodetic Data, Published_External, dataset, geodesy
Organization: Geoscience Australia Data
Muralidbar Creek 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Half Moon Lake 1:100,000 regolith-landform map CRC LEME

The Half Moon Lake 1:100,000 regolith-landform map illustrates the distribution of regolith materials and the landforms on which they occur, described using the RTMAP scheme developed by Geoscience Australia

Tags: 100K scale, AU-SA, Geological Map, Geology, Published_External, landforms, regolith
Organization: Geoscience Australia Data
Ellerston 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-NSW, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Flinders Ranges Earthquakes 3D VRML Model 2007

Geographic extent
The Flinders Ranges region is located in South Australia to the north of Adelaide. The data in this model covers the majority of South Australia.
Contents
This VRML model contains DEM surface, satellite image, elevation image, surface geology image, gravity image, magnetic image, seismic stations and earthquake events mapped in their true three dimensional locations for the Flinders Ranges and surrounding region.
Software required
Geoscience Australia's X3D and older VRML models require the free plugin BS Contact and work best with the web browser Internet Explorer version 6 or higher.
Size
Approximately 4MB Startup download only 200KB - remaining data downloads when layers are selected.

Tags: 3D model, AU-SA, Earth Sciences, GIS Dataset, HVC_144629, Published_External, dataset, earthquakes, risk assessment
Organization: Geoscience Australia Data
Layered geology of Australia

Geoscience Australia’s Exploring for the Future (EFTF) program provides precompetitive information to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, we are building a national picture of Australia’s geology and resource potential. This leads to a strong economy, resilient society and sustainable environment for the benefit of all Australians. This includes supporting Australia’s transition to net zero emissions, strong, sustainable resources and agriculture sectors, and economic opportunities and social benefits for Australia’s regional and remote communities. The Exploring for the Future program, which commenced in 2016, is an eight year, $225m investment by the Australian Government.&nbsp;

The Layered Geology of Australia 1:1 000 000 scale dataset (2024 edition) is a seamless national coverage of Australia’s surface and subsurface geology.&nbsp;Geology concealed under younger cover units are mapped by effectively removing the overlying stratigraphy (Liu et al., 2015). This dataset is a layered product and comprises five chronostratigraphic time slices: Cenozoic, Mesozoic, Paleozoic, Neoproterozoic, and Pre-Neoproterozoic. As an example, the Mesozoic time slice (or layer) shows Mesozoic age geology that would be present if all Cenozoic units were removed. The Pre-Neoproterozoic time slice shows what would be visible if all Neoproterozoic, Paleozoic, Mesozoic, and Cenozoic units were removed. In general, a top down approach has been taken so that only the uppermost units for each era are shown. However, in areas of relative geological complexity and where that detail was available in the source data, some units may show overlap. In these instances, the units are ordered from oldest (base) to youngest (top). The Cenozoic time slice layer for the national dataset was extracted from Raymond et al., 2012. Surface Geology of Australia, 1:1 000 000 scale, 2012 edition. Geoscience Australia, Canberra, and retains the data schema of that dataset. For that layer’s metadata, refer to https://dx.doi.org/10.26186/74855.

Geological units are represented as polygon and line geometries and are attributed with information regarding stratigraphic nomenclature and hierarchy, age, and lithology. All stratigraphic information populated in the dataset is derived from the Australian Stratigraphic Units Database. The dataset also contains a layer for structural features such as faults and shears.

Tags: Australia, Australia’s Resources Framework, Chronostratigraphic mapping, EFTF – Exploring for the Future, Geology not elsewhere classified, Published_External, Solid geology
Organization: Geoscience Australia Data