AndreaBozzo/ceres-open-data-index huggingface dataset:
The continent/island-arc collision in northern Papua New Guinea

Recent geological mapping in the north coast ranges of Papua New Guinea has recognised a Paleogene island arc. This arc is believed to have faced southward, and formed at the northeastern boundary of the Indo-Australian plate. The arc collided with continental crust of the Indo-Australian plate to the south; collision is thought to have occurred first in the west in the Early Miocene and to have progressed eastwards. Crustal shortening on collision resulted in foreland-type folding and thrusting at the continental margin, emplacement of ophiolite allochthons from the arc-trench gap at the collision zone, and uplift and fracturing of the accreted arc. Post-collision plate adjustments are thought to include extensive trans- current faulting about the former plate boundary, southward thrusting of part of the arc (Finisterre-Huon block), and extensive faulting in a complex linear zone extending from south of Manus Island through New Ireland and the Solomon Islands. Present-day interaction between the Indo-Australian and Pacific plates is spread over a wide zone in which at least two minor plates are involved. Despite previous claims, plots of the most accurately located earthquake foci define a northward-dipping seismic zone beneath the Late Cainozoic volcanoes at the southern margin of the Bismarck Sea. We find no evidence to substantiate a reversal of arc polarity at any time after the Mid-Tertiary collision. Mid to Late Cainozoic magmatism in central Papua New Guinea appears to have been triggered by uplift inducing partial melting of mantle modified by Cretaceous subduction. The present-day northward-dipping seismic zone is believed to be a vestige of the Early Tertiary subduction zone; the hanging slab is now slowly sinking and equilibrating with the mantle. If northern New Guinea can be considered to be the type example of a continent/island-arc collision then reversal of arc polarity may not be a necessary consequence of such collisions.

Tags: Earth Sciences, GA Publication, Journal, PNG, Published_External
Organization: Geoscience Australia Data
Bathurst NSW 1991 (P578), radiometric line data, AWAGS levelled

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 Bathurst NSW 1991 (P578), radiometric line data, AWAGS levelled were acquired in 1991 by the NSW Government, and consisted of 68244 line-kilometres of data at 250m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NSW, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 578, thorium, uranium, vector
Organization: Geoscience Australia Data
Introduction to Relative Dating and Absolute Dating video

This short video introduces the two main ways scientists determine the age of a rock or mineral: relative dating and absolute dating. The first half of the video explores relative dating with a short demonstration to highlight key stratigraphic principles and how they are used. The second half of the video explores the principle of radioactive decay and half-life to explain how it is used in absolute dating. 

This video is intended for secondary students and older. It contains curriculum links to physics, chemistry, and Earth and environmental science.

Tags: Education, Educational Product, Isotope Geochemistry, Stratigraphy, Video, absolute dating, geochronology, radiometric dating, relative dating, stratigraphic principles
Organization: Geoscience Australia Data
Australia : evolution of a continent

This book describes the evolution of the Australian continent over the last 600 million years. 
In particular, it focuses on the palaeogeography of Australia. This book is the result of several years' work by a dedicated group of people. The work has begun at the Australian National University by Dr Peter Cook, then the initiative was continued at the BMR. Later work has expanded the study from the Australian continent into the broader context of the supercontinent of Gondwana, and also into more detailed studies of smaller areas of the Australian continental margin.
- comprises a 96 page, full colour book with sections on geological time, plate tectonics, the break up of Gondwana, climate and sea level change, evidence for ancient environments &amp; Australia's geological framework.
- 70 palaeogeographic maps; Cambrian through to Quaternary
- foldout legend
- 6 page glossary of relevant terms

Tags: Earth Sciences, GA Publication, Other Publication, Published_External, geoscience education, mapping, palaeogeography, plate tectonics
Organization: Geoscience Australia Data
Broken Hill Managed Aquifer Recharge (BHMAR) Project: Securing Broken Hill's Water Supply: Assessment of Conjunctive Water Supply Options Involving Managed Aquifer Recharge and/or Groundwater Extraction at Menindee Lakes: Assessment of Conjunctive Water Supply Options Involving Managed Aquifer Recharge Options at Menindee Lakes

Report 3 of 5
Broken Hill Managed Aquifer Recharge (BHMAR) Project
Securing Broken Hill's Water Supply: Assessment of Conjunctive Water Supply Options Involving Managed Aquifer Recharge and/or Groundwater Extraction at Menindee Lakes
Prepared For: The Australian Government Department of the Environment

Tags: Earth Sciences, GA Publication, Published_External, Record, groundwater, hydrogeology
Organization: Geoscience Australia Data
Cooper Creek:  1: 1 Million General Reference Topographic Map

This map is part of a series which comprises 50 maps which covers the whole of Australia at a scale of 1:1 000 000 (1cm on a map represents 10km on the ground). Each standard map covers an area of 6 degrees longitude by 4 degrees latitude or about 590 kilometres east to west and about 440 kilometres from north to south. These maps depict natural and constructed features including transport infrastructure (roads, railway airports), hydrography, contours, hypsometric and bathymetric layers, localities and some administrative boundaries, making this a useful general reference map.

Tags: 1M scale, Published_External, Topographic Map, Topology, cartography, mapping, topography, tourism
Organization: Geoscience Australia Data
SMMSP - MagSpec - Billabong Creek, NSW, 2001 (P908), magnetic line data, AWAGS levelled

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.
 These line dataset from the SMMSP - MagSpec - Billabong Creek, NSW, 2001 survey were acquired in 2001 by the NSW Government, and consisted of 32065 line-kilometres of data at 100m line spacing and 60m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NSW, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 908, vector
Organization: Geoscience Australia Data
Warburton 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-VIC, Earth Sciences, GIS Dataset, Published_External, dataset, topography
Organization: Geoscience Australia Data
Barcoonia 1:100 000 unpublished 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.

Tags: 100K unpublished, AU-QLD, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
GMRT AusSeabed PL019 Workshop-1: Attribute Values and Definitions

The GMRT-AusSeabed project aims to address the cost associated with processing, merging and reformatting of bathymetric data in marine modelling and management by enabling users to more easily create bathymetric maps. The project leverages two major existing initiatives, the AusSeabed Data Hub operated by AusSeabed and the Global Multi-Resolution Topography Synthesis (GMRT) operated by Lamont Doherty Earth Observatory (LDEO) and funded by the US National Science Foundation. 
GMRT-AusSeabed is seeking to deliver two core services that are relevant to this particular document:
   1.  Definition of an attributed point cloud for bathymetric data that is common across a wide range of bathymetric sensor platforms (multibeam echosounder, LiDAR, satellite, etc)
   2.   Develop additional user controls, primarily relating to data selection, that leverage the attributed point cloud for the creation of bathymetric maps.
Within the bounds of the GMRT-AusSeabed project, this document provides:
   1.   A summary of the key points discussed within the first workshop, “Point Cloud Attribution”, 
   2.   A detailed list of the attributes that are to be carried forward through the work program. 
   3.   A list of influences external to the workshop that have contributed to the list. 
Workshop participants included representatives from Geoscience Australia, Deakin University, CSIRO, Guardian Geomatics and Land and Information New Zealand. 
See https://www.ausseabed.gov.au/gmrt for more information.

Tags: AusSeabed, Bathymetry, EARTH SCIENCES, Marine, Multibeam, Published_External
Organization: Geoscience Australia Data
NTData (digital geology of the Northern Territory), The Granites

These data are a digital representation of information depicted on printed maps from the Australia 1:250 000 Geological Series produced by AGSO and the Northern Territory Geological Survey (NTGS) between 1963 and 1998.  The data are in a tiled format 
and are not seamless, although basic edgematching has been done where possible.  Tiles are arranged according to the standard Australian 1:250 000 sheet breakup.  The complete dataset is comprised of the 90 tiles covering the Northern Territory.

Tags: AU-NT, Earth Sciences, GIS Dataset, Published_External, Regional, dataset, geology
Organization: Geoscience Australia Data
Helicopter Gravity (P197104), 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 Helicopter Gravity (P197104) contains a total of 14 point data values acquired at a spacing between 2000 and 10000 metres. The data is located in WA and were acquired in 1971, under project No. 197104 for Bureau of Mineral Resources (BMR).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197104
Organization: Geoscience Australia Data
Barlee Jackson ppm thorium grid geodetic

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 0.00083 degrees (approximately 86m) and shows thorium element concentration of the Barlee, Jackson, WA, 1997 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1997 by the WA Government, and consisted of 104998 line-kilometres of data at 400m 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 696, thorium
Organization: Geoscience Australia Data
Australian Coastal Geomorphology Depositional Environment WMS

The service contains the Australian Coastal Geomorphology Environments, used to support a national coastal risk assessment. It describes the location and extent primary geomorphological environments (both depositional and erosional) present along the Australia coast and the processes acting on the features within.

Tags: Earth Sciences, Published_External, WMS, beach, coast, coastal, dune, geomorphic, geomorphology, hazard, risk, shoreline, smartline, web service
Organization: Geoscience Australia Data
Foal 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Birrindudu 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-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Gravity Survey (P197756), 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 Gravity Survey (P197756) contains a total of 173 point data values acquired at a spacing between 200 and 500 metres. The data is located in SA and were acquired in 1977, under project No. 197756 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197756
Organization: Geoscience Australia Data
Cooper Basin North Gravity Bouguer Anomaly geodetic

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 Cooper Basin North Gravity Bouguer Anomaly geodetic is a complete Bouguer anomaly grid for the Cooper Basin North Gravity Survey, Queensland 2007 (P200701). This gravity survey was acquired under the project No. 200701 for the geological survey of QLD. The grid has a cell size of 0.0075 degrees (approximately 796m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 3550 gravity stations were acquired to produce this grid.

Tags: Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, geophysical survey, geophysics, grav, gravity, grid, ground digital data, infinite slab, raster, simple Bouguer, survey 200701
Organization: Geoscience Australia Data
NTGS Delamere Doserate Grid Geodetic

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. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered terrestrial dose rate grid.
This NTGS Delamere Doserate Grid Geodetic has a cell size of 0.00083 degrees (approximately 91m) and shows the terrestrial dose rate of the NTGS Delamere and Spirit Hills, NT, 2015. The data used to produce this grid was acquired in 2015 by the NT Government, and consisted of 96790 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NASVD, NCI, NT, Published_External, Th, U, airborne digital data, dose, dose rate, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, rate, spectrometry, survey 1274, thorium, uranium
Organization: Geoscience Australia Data
Balladonia Complete Spherical Cap Bouguer geodetic

Gravity data measure 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 Balladonia Complete Spherical Cap Bouguer geodetic is a complete spherical cap Bouguer anomaly grid for the South Yilgarn Gravity Survey, WA, 2009 (P200961). This gravity survey was acquired under the project No. 200961 for the geological survey of WA. The grid has a cell size of 0.0046 degrees (approximately 472m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 6125 gravity stations were acquired to produce this grid.

Tags: Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, complete, geophysical survey, geophysics, grav, gravity, grid, ground digital data, raster, spherical cap, survey 200961
Organization: Geoscience Australia Data
Cairn Hill Well 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Nabberu (South), WA, 1996 (P658), elevation line data

The Digital Elevation Model represents ground surface topography between points of known elevation. The elevation data was calculated using the altimeters and Global Positioning System (GPS) sensor used for the benefit of airborne magnetic and radiometric data on the same survey. The elevation is the height relative to the Australian Height Datum GDA94 (AUSGEOID09). The processed elevation 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 Nabberu (South), WA, 1996 survey were acquired in 1996 by the WA Government, and consisted of 24630 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, Published_External, WA, airborne digital data, geophysical survey, geophysics, line, survey 658, terrain, vector
Organization: Geoscience Australia Data
Mildura, Vic, 1994 VIMP Survey (GSV3019) (P638), radiometric line data, AWAGS levelled

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 Mildura, Vic, 1994 VIMP Survey (GSV3019) (P638), radiometric line data, AWAGS levelled were acquired in 1994 by the VIC Government, and consisted of 51663 line-kilometres of data at 400m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, Published_External, VIC, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 638, thorium, uranium, vector
Organization: Geoscience Australia Data