AndreaBozzo/ceres-open-data-index huggingface dataset:
Description of Ornamental Building Stones used in the Ground Foyer of the Geoscience Australia Building, Symonston, ACT

This report describes the ornamental stones used in the ground floor foyer of the Geoscience Australia building.
There are three ornamental stones used. The flooring tiles are basalt. The 'fault' line through this is a polished norite and the blade walls are covered by a Persian red Travertine.  Investigations have established that the basalt and norite are from Australian quarries and the travertine is from an unknown source overseas possibly Italy.

Tags: AU-ACT, Earth Sciences, GA Publication, Published_External, Record, architecture, dating, geology, geoscience education, petrology
Organization: Geoscience Australia Data
The Wudinna 1:20,000 regolith-landform map part A CRC LEME

The Wudinna 1:20,000 regolith-landform map part A illustrates the distribution of regolith materials and the landforms on which they occur, illustrates using the Residual-Erosional-Depositional (RED) mapping scheme developed by the CSIRO Division of Exploration and Mining

Tags: AU-SA, Geological Map, Geology, Non-standard scale, Published_External, landforms, regolith
Organization: Geoscience Australia Data
The petrology, geochemistry and implications of basalts dredged from the Rowley Terrace-Scott Plateau and Exmouth Plateau margins, northwestern Australia

We report major and trace-e lement compositions of 14 basalts and dolerites dredged from seven sites along the outer rifted margin of northwestern Australia.  Lavas from the margin of the Scott Plateau-Rowley Terrace, of interpreted Callovian-Oxfordian age, are evolved basalts and ferrobasalts with Zr/ Nb from 5-17, and LREE-enriched REE patterns [(La/ Yb)N from 3.4 to 8], and are T-MORB transitional to more P-MORB from the SW Indian Ridge and the Red Sea-Afar rift zone. They are significantly different from the unusually depleted N-MORB drilled less than 100 km farther west on the Argo Abyssal Plain at ODP Site 765.  T- to P-MORB were also dredged at the foot of the southwestern corner of the Exmouth Plateau. This dredge site is only 80 km from ODP Site 766, which also yielded N-MORB. Basalts very similar to those drilled at ODP Site 766 were also dredged at a site only 20 km east of Site 766.  The evolved, mainly ferrobasaltic nature of the Rowley Terrace-Scott Plateau margin basalts, their T- to P-MORB compositional signatures, and their close spatial association with strongly depleted N-MORB resemble in many ways the lava pile formed during the last 4 m.y. along the southern Red Sea-Gulf of Aden-Asal-Afar region. Although the latter region is associated with the effects of the long-lived (~40 m.y.) Afar plume, a plume origin for the northwest Australian margin basalts is less easily demonstrated.  Problems with the plume hypothesis for this region include (1) the remarkably rapid change from  plume-influenced  MORB along the Rowley Terrace margin to depleted N-MORB at the foot of this margin at the eastern end of the Argo Abyssal Plain, requiring a sudden switch-off of the hypothetical plum; (2) the apparent recurrence of this same pattern of T-MORB to depleted N-MORB basalts 400 km farther south on the same margin some 20-25 m.y. later (Valanginian); and (3) the occurrence of perhaps more convincingly plume-related basalts that constitute the Wallaby Plateau, which formed as part of interpreted plume head eruptions of the Kerguelen plume around 115 Ma, and were apparently erupted onto Cuvier Abyssal Plain oceanic crust only probably 30-40 m.y. old.

Tags: Earth Sciences, GA Publication, Journal, Published_External, WA
Organization: Geoscience Australia Data
NSW DMR, Discovery 2000, AREA O, NW EROMANGA, NSW 2000 (P752), 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 NSW DMR, Discovery 2000, AREA O, NW EROMANGA, NSW 2000 survey were acquired in 2000 by the NSW Government, and consisted of 54898 line-kilometres of data at a line spacing between 200m and 200m, 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 752, vector
Organization: Geoscience Australia Data
GSNSW Exploration NSW Area M Kayrunnera 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 GSNSW Exploration NSW Area M Kayrunnera magnetic grid geodetic has a cell size of 0.00048 degrees (approximately 50m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1999 by the NSW Government, and consisted of 55448 line-kilometres of data at 250m line spacing and 60m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, TMI, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 745, total magnetic intensity
Organization: Geoscience Australia Data
Geoscience Australia Vocabulary - Associated Resource Type

The Geoscience Australia catalogue uses a profile of certain controlled vocabularies (codelists) from the ISO19115-1 metadata standard. A profile includes extra terms that are used by Geoscience Australia that do not appear in the original standard.
In this vocabulary, the catalogue metadata uses the MD_AssociatedResource entity to indicate associations or relationships between resource metadata records or business documentation. If these associations are used in a metadata record they will appear as an extra tab to the right of the "Technical" tab as an "Associations" tab. The vocabulary includes the ISO terms and the GA terms.
This profile is described in the Geoscience Australia Community Metadata Profile of ISO 19115-1:2014.

Tags: Associated Resource Codelist, DATA FORMAT, LIBRARY AND INFORMATION STUDIES, Provenance, Published_External, Vocabulary
Organization: Geoscience Australia Data
AusSeabed 2021/22 Work Plan

This document presents an overview of the AusSeabed 2021/22 Work Plan created by the AusSeabed Steering Committee and endorsed by the AusSeabed Executive Board. The work plan builds on the great work delivered in 2020/21 (see the Annual Highlights Report &amp; Annual Progress Report). For more information on the direction and vision of the program, please refer to the AusSeabed 2030 Strategic Plan.
For further information about AusSeabed see https://www.ausseabed.gov.au

Tags: AusSeabed, Marine Geoscience, Published_External, annual report, seabed mapping
Organization: Geoscience Australia Data
Napperby/Hermannsburg1 2, NT, 1997 (P1002), 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 Napperby/Hermannsburg, NT, 1997 survey were acquired in 1997 by the NT Government, and consisted of 105377 line-kilometres of data at 400m 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, NT, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 1002, vector
Organization: Geoscience Australia Data
An Ellipsoidal Plate Motion Model of the Indo-Australian Tectonic Plate

We present a class of “ellipsoidal rotation matrices” which can be used to characterize tectonic plate motion; where geocentric Cartesian coordinates travel along paths tangential to the ellipsoid. We contrast them with conventional Euler pole plate motion models which are more closely aligned with spherical coordinate systems and inherently induce a change in geodetic ellipsoidal height. We demonstrate the use of each in the Indo-Australian tectonic plate setting, which is known to move approximately 7 cm/year in a north-northeast direction. Geocentric Datum of Australia 2020 (GDA2020) coordinates are “plate-fixed” static coordinates obtained using a conventional Euler pole plate motion model to align time dependent coordinates with the 2014 realization of the International Terrestrial Reference Frame at the epoch 2020.0. We show that this Euler pole plate motion model can introduce ellipsoidal height velocities of up to −0.2 mm/year. This is small but systematic, so pertinent for consideration with high accuracy vertical land motion studies using GDA2020 coordinates and velocities. We further investigate the comparative statistical accuracy of conventional Euler pole and the ellipsoidal models with respect to characterizing plate motion captured in high quality Global Navigation Satellite System data.
Plain Language Summary:
We introduce a new way to study the movement of Earth's tectonic plates, using something called “ellipsoidal rotation matrices.” These matrices help us understand how plates move along a path that agrees with the Earth's ellipsoidal shape. This is different to the traditional way of studying plate motion, which usually assumes the Earth is a perfect sphere. We tested both methods by looking at the Indo-Australian tectonic plate, which is moving north-northeast at about 7 cm per year. Our findings show that the traditional, spherical method could result in slightly misrepresenting how the land is moving vertically, by up to −0.2 mm per year, since the vertical motion signal cannot be separated from the tectonic plate motion adequately. While this might not seem like much, it could matter in studies that require very accurate measurements of land height changes over time. We verify how well each method is in capturing the real movement of the Indo-Australian tectonic plate and demonstrate that the ellipsoidal method is more accurate.
Citation: McCubbine, J. C., Riddell, A. R., &amp; Brown, N. (2024). An ellipsoidal plate motion model of the Indo-Australian tectonic plate. Journal of Geophysical Research: Solid Earth, 129, e2023JB027765. 
https://doi.org/10.1029/2023JB027765

Tags: Other earth sciences not elsewhere classified, Published_External, geodesy, plate motion, rotation matrices
Organization: Geoscience Australia Data
Comparison of biohydrogen production efficiency by Rhodopseudomonas palustris MP3 and Rhodopseudomonas harwoodiae SP6 using NO-Fe complex as an enhancement factor

In the present study, nanoscale organic-iron complex (NO-Fe) was used as an enhancement factor by two different Rhodopseudomonas species of purple non sulphur bacteria (PNSB) to produce hydrogen (H2). The NO-Fe complex was synthesised using Eucalyptus viminalis-a native Australian plant leaf extract, and FeSO4.7H2O salt. This NO-Fe complex was used as an iron source for newly isolated Rhodopseudomonas palustris MP3 and Rhodopseudomonas harwoodiae SP6 strains of photo-fermentative bacteria to produce H2.&nbsp;FeSO4.7H2O&nbsp;was also used as a source of iron for comparison with the NO-Fe complex. The photofermentative bacterial cultures were isolated from a fishpond, and only two strains, MP3 and SP6, were found viable after several attempts of quadrate streaking. After phylogenetic analysis, these strains were designated as R. palustris MP3 and R. harwoodiae SP6. The results showed that the R. palustris MP3 strain manifested approximately 70 % higher performance to the NO-Fe complex (FeEx1:2 and FeEx2:1), with an increase in H2 production compared to ferrous salt. The best performance was achieved by both strains when NO-Fe complex FeEx1:2 was supplemented in the fermentation broth at 10 mg/L concentration. The highest production of H2 was observed by R. palustris MP3 (10.7 ml/L) compared to R. harwoodiae SP6 (10 ml/L) when NO-Fe complex FeEx1:2 was used as an iron source. The study revealed that R. palustris MP3 and R. harwoodiae SP6 exhibited higher response to NO-Fe complex FeEx1:2 compared to the control. NO-Fe complex FeEx1:2 was considered highly conductive&nbsp;for efficient H2 production for further research.
Citation:
Kanwal, F.; Tahir, A.; Tsuzuki, T.; Nisbet, D.; Chen, J.; Torriero, A.A.J. Comparison of Hydrogen Production Efficiency by Rhodopseudomonas palustris MP3 and Rhodopseudomonas harwoodiae SP6 Using an Iron Complex as an Enhancement Factor. Energies 2023, 16, 5018. https://doi.org/10.3390/en16135018

Tags: GA laboratory, Other earth sciences not elsewhere classified, Photo-fermentative bacteria, Published_External, biohydrogen, phyto-fabricated NO-Fe complex
Organization: Geoscience Australia Data
Baulk Face Range 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
Willara Hill 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
McArthur Basin, NT, 1978 (P449), 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 McArthur Basin, NT, 1978 survey were acquired in 1978 by the NT Government, and consisted of 51579 line-kilometres of data at 3000m line spacing and 150m 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, NT, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 449, vector
Organization: Geoscience Australia Data
WestArunta 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 WestArunta Complete Spherical Cap Bouguer geodetic is a complete spherical cap Bouguer anomaly grid for the West Arunta Gravity Survey, 2010 (P201080). This gravity survey was acquired under the project No. 201080 for the geological survey of NT. The grid has a cell size of 0.00747 degrees (approximately 799m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 12428 gravity stations were acquired to produce this grid.

Tags: Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NT, Published_External, complete, geophysical survey, geophysics, grav, gravity, grid, ground digital data, raster, spherical cap, survey 201080
Organization: Geoscience Australia Data
Niarrie 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-SA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Brachiopods from the Silurian of Fyshwick, Canberra, Australia

Ten species of articulate brachiopods are described from the Silurian (Wenlock) Canberra Formation of Fyshwick, Canberra.  One, Leploslrophia (Leplostrophiella) oepiki, is new and five are referred to species previously described from Canberra Silurian rocks.  A species of Atrypa is closely comparable with the Early Devonian Victorian species A. perflabellata, originally referred to Spinalrypa. The Victorian species and the distinction between Alrypa and Spinalrypa are discussed. The remaining three species are described under open nomenclature.

Tags: ACT, Earth Sciences, GA Publication, Journal, Published_External
Organization: Geoscience Australia Data
Analysis of continental structures using a Digital Terrain Model (DTM) of Australia

Colour images of the topography of Australia, generated and manipulated by computer techniques, have been used for analysis of regional geological structures. Discussion is concentrated on lineaments, because some workers have claimed that Australias largest metalliferous deposits are related to systems of lineaments, and much work is being done on them by the mineral and petroleum exploration industries. There is only partial correspondence of topographic lineaments with those based on gravity or aeromagnetic data, at least at the present early stage of development of DTM studies. On the other hand, some major new lineaments have been found in the DTM, for example, one that continues for hundreds of kilometres from the southeast end of the Emu Fault on which the giant HYC ore body occurs. This feature is parallel to the Roxby Downs gravity lineament. DTM images provide a new tool for recognising regional geological structures and are potentially useful for mineral exploration.

Tags: AUS, Earth Sciences, GA Publication, Journal, Published_External
Organization: Geoscience Australia Data
Holistic inversion of time-domain AEM data

A holistic inversion algorithm has been developed for time-domain airborne electromagnetic (AEM) data. The algorithm simultaneously recovers a layered earth conductivity structure as well as unmeasured elements of the system geometry. It inverts a complete flight line of data in one inversion. This allows us to take advantage of the expected along-line continuity of conductivity and system geometry, which cannot be exploited when each sample is inverted independently.  The conductivity and thickness of each layer and geometry variable is parameterised by the node coefficients of separate cubic-spline basis functions, which implicitly represent smooth continuous along line variations.  Each of the cubic splines may have different node spacings that are chosen to adequately represent the expected scale length of lateral variability of conductivity and system geometry. The regularised inversion scheme is formulated to minimise an objective function comprised of data misfit, reference model misfit, and vertical and horizontal roughness terms. The minimisation is implemented via a gradient-based iterative scheme in which a sparse linearised system is solved by the conjugate gradient method within each iteration. The method has been applied to fixed-wing and helicopter AEM data. The results demonstrate that the method produces conductivity models that are geologically credible and consistent with downhole conductivity logs. They also show improved continuity and interpretability in comparison to sample by sample inversions. We found that the estimation of transmitter-receiver separation and receiver pitch geometry parameters was stabilised by the implicit along line continuity constraints.

Tags: AEM, Airborne Electromagnetics, Conference Paper, Earth Sciences, External Publication, Published_External, TEM, geophysics, model
Organization: Geoscience Australia Data
Booligal 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