AndreaBozzo/ceres-open-data-index huggingface dataset:
Report on the Analysis of the Asia Pacific Regional Geodetic Project (APRGP) GPS Campaign 2024

The annual Asia Pacific Regional Geodetic Project (APRGP) GPS campaign is an activity of the Geodetic Reference Frame Working Group (WG) of the Regional Committee of United Nations Global Geospatial Information Management for Asia and the Pacific (UN-GGIM-AP). This document describes the data analysis of the APRGP GPS campaign undertaken between the 08th and 14nd of September 2024. Campaign GPS data collected at 74 sites in eleven countries across the Asia Pacific region were processed using version 5.2 of the Bernese GNSS Software in a regional network together with selected IGS (International GNSS Service) sites. The GPS solution is aligned to the International Terrestrial Reference Frame 2020 (ITRF2020) reference frame by adopting IGS20 coordinates on selected IGS core reference sites and using the final IGS earth orientation parameters and satellite ephemerides products. The average of the root mean square repeatability of the station coordinates for the campaign was 2.4 mm, 2.7 mm and 6.8 &nbsp;mm in north, east and up components of station position respectively.

Tags: GPS, Geodetic Reference Frame, ITRF2020, Other earth sciences not elsewhere classified, Published_External
Organization: Geoscience Australia Data
Notes on copper mining production, Northern Territory

This report provides an overview of copper mining production in the Northern Territory between 1885 and 1947. Production, distribution, and economic considerations are generally discussed, and the principle copper producing mines are described in some detail. This description includes details of the geology and working of the lodes, ore grade, and recorded production figures.

Tags: AU-NT, GA Publication, Geology, Published_External, Record, economic geology, industry, mineral deposits, resource assessment
Organization: Geoscience Australia Data
Micropalaeontological examination of samples from E Miles bore (W1/2/3) Cove Pre Purchase, Parish of Dinyarrak, County of Lowan, Victoria

This report describes the results of a micropalaeontological examination of samples taken from a depth of 0 to 250 feet.

Tags: AU-VIC, GA Publication, Geology, Published_External, Record, palaeontology, stratigraphy
Organization: Geoscience Australia Data
Radioactive minerals in the Marble Bar area: Summary of results of 1948 reconnaissance survey

An inspection of radioactive minerals was conducted in the Marble Bar area. The localities of Wodgina, Mount Francisco, Pilgangoora, Alisa Downs, Trig Hill and Cooglegong were visited. Occurrences of monazite, yttrotantalite, pilbarite and radio-active columbite were investigated and samples collected for further examination. An account of the inspection and subsequent findings is given in this report.

Tags: AU-WA, GA Publication, Geology, Published_External, Record, mineral deposits, research, resource assessment
Organization: Geoscience Australia Data
Exploring for the Future – SHRIMP U-Pb geochronology of NDI Carrara 1, South Nicholson region, Northern Territory

NDI Carrara 1 is a deep stratigraphic drill hole (~1751m) completed in 2020 as part of the MinEx CRC National Drilling Initiative (NDI) in collaboration with Geoscience Australia and the Northern Territory Geological Survey. It is the first test of the Carrara Sub-basin, a depocentre newly discovered in the South Nicholson region based on interpretation from seismic surveys (L210 in 2017 and L212 in 2019) recently acquired as part of the Exploring for the Future program. The drill hole intersected approximately 1100 m of Proterozoic sedimentary rocks uncomformably overlain by 630 m of Cambrian Georgina Basin carbonates.
This report presents SHRIMP U-Pb zircon geochronology on 10 volcaniclastic rocks taken from NDI Carrara 1.

Tags: Carrara Sub-basin, EARTH SCIENCES, EFTF, Exploring for the Future, GEOLOGY, Geochronology, NDI Carrara 1, Proterozoic, Published_External, SHRIMP zircon Geochronology, Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)
Organization: Geoscience Australia Data
Exploring for the Future—Architecture of the deep Ti Tree Basin (Report 1) Northern Territory

This report presents key results from the Ti Tree Basin project completed as part of Exploring for the Future (EFTF)—an eight year, $225 million Australian Government funded geoscience data and information acquisition program focused on better understanding the potential mineral, energy and groundwater resources across Australia. 
The Ti Tree Basin is one of four Northern Territory water management areas in the Southern Stuart Corridor (SSC) area, part of Geoscience Australia’s Exploring for the Future project. The Ti Tree Basin is approximately 150–200 kilometres north of Alice Springs. The intracratonic basin is infilled Cenozoic alluvial and lacustrine sediments. Since the 1960s the basin has been the focus of many government investigations and policies into its groundwater potential. Most have concentrated on the relatively shallow Cenozoic aquifers less than 100 metres below surface. Wischusen et al. (2012) identified the potential of the deeper aquifers (at depths of greater than 100 m) to expand the potential water resources of the Ti Tree Basin. 
This report uses three sets of AEM data, two acquired by Geoscience Australia and one from historic mineral exploration, to map the depth to basement in the Ti Tree Basin.  We confirm the prediction of Wischusen et al. (2012) that there is significant potential for a much thicker Cenozoic succession in the Basin and show that up to 500 m of sediments are present in fault bounded structures.  We demonstrate that these sediments occur in two successions, one of probably Eocene age within narrow, fault-bounded troughs and the other of probable Miocene to Pliocene age occurring across a wider area.  The two successions are separated by a low angle unconformity.  We interpret the lower succession as forming during strike-slip opening of the basin, and the upper succession as being deposited by passive basin infill.  The faults forming the deep basin show are mostly congruent with basement structures previously interpreted from aeromagnetic data. Most of the lower succession has not been fully penetrated by earlier drilling.
The interpreted AEM data shows that the deep Ti Tree Basin may contain extensive sandy aquifer units whose potential are completely unexplored.  We recommend further investigations, including further stratigraphic drilling, mapping of the uniformity surface, and installation of monitoring bores, to more fully explore the potential of the deep Ti Tree Basin.

Tags: AEM, EARTH SCIENCES, EFTF, Exploring for the Future, Groundwater, Published_External, Structure, Ti Tree Basin
Organization: Geoscience Australia Data
Possibilities of developing the Harts Range mica belt

Shortly after I took up the appointment of Mineral Economist, the high quality of the mica from the Harts Range came to my notice. Accordingly, I paid a visit to Harts Range between the 22nd September and 4th October. In judging the possibilities of developing the mica deposits of the Harts Range, the difficulty is the almost complete lack of reliable detailed mining data in the past - production data for the later war years only are available. However, by comparing the degree of areal concentration of the pegmatites, the type of deposits and the quality and sizes of the mica so far produced with those in India, a reasonable picture can be obtained of comparative possibilities. The method of approach throughout this report, therefore, will be comparison of the Harts Range with India mica.
This report gives an account of the present state of the Australian mica industry, including descriptions of current trade terms, the grading and classification of mica, and the Harts Range Mica Belt deposits. Suggestions and recommendations for the development of the industry are discussed.

Tags: AU-NT, GA Publication, Geology, Published_External, Record, geology, industry, mineral deposits, mineral exploration, resource assessment
Organization: Geoscience Australia Data
A reported occurrence of petroleum on Jindare station, south-west of Pine Creek, Northern Territory

In March of this year Mr. A.E. Hawker, of Jindare, forwarded to Canberra a small bottle containing water and a yellowish, oily substance which had formed a coating on the inside of the bottle. Microscopic examination of part of the coating proved the presence of globules of oil and also revealed Desmid algae. It seemed probable that the oil had been derived from the decomposition of algae or other recently dead plants. However, as the locality from which the sample was taken lies within a belt of Cambrian limestone, it was possible that the oil had its origin in this rock. While recently engaged in field work in the Northern Territory, Mr. C.J. Sullivan and the writer examined the localities where oil was said to occur. This report comprises an account of the field observations and geological notes made during the examination.

Tags: AU-NT, GA Publication, Geology, Published_External, Record, petroleum exploration
Organization: Geoscience Australia Data
Microscopic examination of three samples of diatomite from New Zealand

The samples of diatomite were received recently from the Director of the Geological Survey of New Zealand. The localities for the samples are given as Middlemarch, Wainui and Whirinaki. The three diatomites are of freshwater origin. The following notes are the result of microscopic examination.

Tags: Earth Sciences, GA Publication, NZ, Published_External, Record, palaeontology
Organization: Geoscience Australia Data
Report on samples from a bore at Mt Burr - hundred of Riddoch, South Australia

Ten samples from a bore were submitted for micropalaeontological examination. The first sample was taken at a depth of 19-35 feet and the last at 417-425 feet. As these samples are the first in a series from bores in the Mt. Burr area, the fossil content of each sample is listed in detail, so that it can form a basis for the work on samples from other bores. At the end of the report a complete list of fossils determined, together with their distribution in the samples, is given.

Tags: AU-SA, GA Publication, Geology, Published_External, Record, palaeontology
Organization: Geoscience Australia Data
Geological reconnaissance in the Mt Ramsay area, Kimberley division Western Australia

The authors were engaged in geological reconnaissance work in the Fitzroy Crossing - Halls Creek area, during the period 16th August to 23rd September, 1948. The principal object of the investigation was to examine the area covered by the Mt. Ramsay Sheet of the Army Series. Work was extended beyond the limits of this sheet however in order to obtain information with regard to the age relationship of some formations, and a visit was made to the Wolf Creek Meteorite Crater 63 miles south of Halls Creek. During the survey, work was concentrated chiefly in mapping the distribution of rocks and different geological periods, determining their relationships and economic possibilities, and recognising areas warranting more detailed investigations. Accompanying geological plans and aerial photographs are included.

Tags: AU-WA, GA Publication, Geology, Published_External, Record, economic geology, geology, mapping, mineral deposits, resource assessment, structural geology, topography
Organization: Geoscience Australia Data
Exploring for the Future: data release of whole-rock Re–Os from the South Nicholson region, Northern Territory and Queensland

The Exploring for the Future Program (EFTF) is a $100.5 million four year, federally funded initiative to better characterise the mineral, energy and groundwater potential of northern Australia. A key focus area of the initiative is the South Nicholson region, situated across the Northern Territory and Queensland border. The South Nicholson region is located between two highly prospective provinces, the greater McArthur Basin in the Northern Territory, the Lawn Hill Platform and the Mount Isa Province in Queensland–Northern Territory, which both have demonstrated hydrocarbon and base metal resources. In contrast, the South Nicholson region is not well understood geologically, is mostly undercover with limited well data, and prior to EFTF contained limited seismic coverage. Re–Os analyses in this study were undertaken to complement seismic data, U–Pb geochronology and geochemistry data to better understand the geological evolution and resource potential of the South Nicholson region.
Five organic carbon bearing sedimentary samples from drillholes BMR Ranken 1, NTGS00/1, DDH 83/1 and DDH 83/4 located across the South Nicholson region were analysed for whole rock Re–Os. The aim of the analyses was to better constrain the depositional age of basin units in the region, and to potentially provide insights into the timing of post-depositional processes such as fluid events and hydrocarbon generation and/or migration. Samples belong to the Mesoproterozoic South Nicholson Group, Paleoproterozoic Fickling and McNamara groups, and the Neoproterozoic to Devonian Georgina Basin. Samples were analysed at the University of Alberta, Canada.

Tags: EARTH SCIENCES, EFTF, Exploring for the Future, GEOLOGY, Geochronology, Published_External, Re-Os, South Nicholson, Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy), basin
Organization: Geoscience Australia Data
Micro-examination of further samples from the Currangundi bore, 35 miles SW of Mungindi, northern New South Wales

Findings from a micro-examination of samples taken from the depths of 2,110 feet down to 3,533 feet 11 inches. The series is in continuation of that reported upon 11/10/44.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, geology, palaeontology
Organization: Geoscience Australia Data
Understanding Australia's High Purity Silica Potential, A Global Mineral Systems Review

High-purity silica (HPS) is an integral component in technology such as semiconductors and solar photovoltaic cells. It is sourced from a limited number of locations around the world, with only one operational mine in Australia producing metallurgical grade silica (>98% SiO2). Globally, HPS is found in a wide range of geological settings, with known deposits being relatively sparse. This presents a challenge for future exploration efforts, as the conditions that produce HPS are not well understood.
The report discusses various components of silica mineral systems and their prospectivity for HPS using the mineral systems framework. This framework defines the criteria necessary to produce silica. Five components are evaluated: 1) the sources of metals, fluids and ligands, 2) energy sources and fluid flow drivers, 3) fluid-flow pathways and architecture, 4) ore depositional gradients/traps and 5) preservation. The main criteria identified for these components include (1) pegmatites, granites, cherts and turbidites as potential silica sources; (2) granites, partial melting, convergent margins and the fluid pressure gradients triggered by resulting metamorphism as potential energy sources; (3) deep marine basins, shear zones/highly fractured or faulted crust, and competency contrasts as fluid-flow pathways and architecture; (4) deformation partitioning, contact aureoles and occurrences of known mineral associations as evidence of ore depositional gradients; and (5) source outcrop occurs at or near-surface to demonstrate preservation through uplift and erosion preferentially preserving the quartz-rich lithologies in economically viable conditions. In reviewing the components of HPS mineral systems, this report has identified key criteria that are present across a range of silica mineral systems. Greenschist to amphibolite metamorphic facies, and the presence of granitic plutons, appear to be a favourable criterion across a range of HPS targets.
In defining the criteria that govern the formation and emplacement of HPS, this report aims to equip mineral explorers with the mineral systems knowledge needed to motivate and de-risk exploration for HPS in Australia. This information is compiled to act as a foundation for future mineral potential assessments, with the goal of helping to identify new HPS targets in Australia. Integrating the various silica mineral systems into a single framework will create a tool for mineral explorers to effectively identify, discover and define HPS targets, leading to the diversification of silicon supply chains in Australia. This work is undertaken as part of the Australian Critical Minerals Research and Development Hub.

Tags: Australian Critical Minerals Research and Development Hub, Geology, Geoscience Australia, High Purity Quartz, High Purity Silica, Mineral Systems, Resource geoscience, critical minerals, silicon
Organization: Geoscience Australia Data
Wallaroo-Moonta investigation: geochemical project notes

A major purpose of the study, as it appears to me at this time, is to ascertain the presence of geochemical anomalies in the area of (copper) mineralization. Such anomalies, if established, may be correlated with the dispersion train phenomena and with the dispersion halo of the ore, in an area known as mineralization. A comparable study may be undertaken then, depending on the advice of the team, in an area of suspected but not known, mineralization. Further investigations, beyond the reconnaissance stage, may be projected, in consultation with the team, on completion of the orientation study.
This report contains the author's tentative remarks on a proposed reconnaissance in South Australia. Objectives, background to the work, methods, and proposed operations are discussed.

Tags: AU-SA, GA Publication, Geochemistry, Published_External, Record, geochemistry, research
Organization: Geoscience Australia Data
Notes on mica occurrences at Mt Kitchin, Chillagoe district, northern Queensland

Mount Kitchin lies about thirty miles west from Chillagoe in Northern Queensland and is 13 miles by bush-track south-west from the now deserted town site of Arbouin on Cardross copper field. Six claims embrace the mica deposits at Mount Kitchin, but only three of these could be examined, on the 8th October, 1942, in the short time at disposal. The brief examination of these three claims, namely, "Wonder", "Anniversary" and "Southern Cross" confirms the remarks of Mr C.C. Morton in his report dated 1/5/42 to the Chief Geologist, Brisbane, and it appears that the "Southern Cross" and "Anniversary" claims contain the only deposits which may become producers in the future. When compared with the mica deposits of Central Australia the pegmatite bodies at Mount Kitchin are very small.

Tags: AU-QLD, GA Publication, Geology, Published_External, Record, mineral deposits, mining, resource assessment
Organization: Geoscience Australia Data
Report on magnetic investigations in the vicinity of Fremantle, in connection with naval degaussing operations

These investigations were carried out at the request of the Secretary for the Navy. The following report is intended to confirm provisional information made available to naval personnel during and at the conclusion of the surveys. The Fremantle Degaussing Range is situated in Gage Roads near Fremantle Harbour. The position of the coils forming shallow and deep ranges is shown in Fig. 1. Deperming operations were carried out in Careening Cove, Garden Island. The objects of the investigation were twofold. First, to determine the average normal values of the vertical (Z) and horizontal (H) force components of the Earth's magnetic field in that part of the harbour which would be occupied by a ship in passing over the coils, and second, to determine the average normal values of Z and H in the vicinity of Careening Cove, Garden Island.

Tags: AU-WA, GA Publication, Geology, Published_External, Record, geophysics
Organization: Geoscience Australia Data
Geological report on the Mount Murphy wolfram mine

The Mont Murphy reefs occur in sedimentary rocks, which strike northwest and dip southwest at 45 degrees, about 31/44 mile north from an intrusive granite contact. The reefs, which strike north to northeast and dip steeply east, can be divided into three groups - the No. 1 reef, the No. 2 reef, and the Upper Mount Murphy group. Total positive plus probable ore on present mine exposures adds up to 1,132 tons, containing 18 tons tungstic oxide worth Â£9,900. Possible additional ore is about 2,500 tons with a tungstic oxide content of perhaps 41 tons. There is little prospect of capital invested being returned but the mine may pay operating costs if working expenses are kept to a minimum.

Tags: AU-VIC, GA Publication, Geology, Published_External, Record, geology, mineral deposits, mining, ore
Organization: Geoscience Australia Data
Barite deposit, Harold's Cross, Captain's Flat district

The Harold's Cross Barite Deposit lies 7.4 miles slightly north of east from Captain's Flat. Four separate deposits were noted, each occupying a minor shear or joint plane in the granite. The past production and geology of these individual deposits are discussed in this report.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, mineral deposits
Organization: Geoscience Australia Data
An Introduction to Geological Maps

Underlying all of Australia's unique environment is the continent's geology;  the rocks and minerals. The rocks and minerals influence the landforms; the mountains, valleys and plains; and the soil on which our unique flora and fauna depend.
Having an understanding of the geology of our continent will lead to a greater appreciation of the mportance of Australia's wonderful environment.
Geology is the study of the Earth. It includes the study of the rocks on the Earth including the minerals and fossils they contain, the way the rocks are positioned, the processes which formed them and the age of the different layers. Geology also includes the study of the weathering (breakdown) of those rocks and the soils they form. A geological map shows many of these features, especially the types of rocks and their relationship to each other, both in age and location. A geological map makes it possible to develop an understanding of the geological history of an area.

Tags: AU, Earth Sciences, GA Publication, Published_External, Record, geology, mapping
Organization: Geoscience Australia Data
Limestone and dolomite deposits at Cow Flat and at Walls Siding, New South Wales

A visit was made to inspect the limestone and dolomite deposits at Cow Flat and Walls Siding. An overview of the working of these deposits, which includes details of the leases, production, prices, plant operations, future developments, and the present positions of the owner companies, is given in this report.

Tags: AU-NSW, GA Publication, Geophysics, Published_External, Record, industry, mineral deposits, resource assessment
Organization: Geoscience Australia Data
Geological report on the Womobi wolfram mine

The Womobi wolfram mine is situated in M.I.6798 in the Parish of Thologolong, County of Benambra, one mile east of the main Murray Valley Highway and 42 miles by road easterly from Albury. The mine was mapped on September 4th, 1943. The surface was mapped by plane table on Decemeber 1st, 1943, in company with Mr B.P. Utting, and underground mapping brought up to date. The mine is developed by a short adit to the reef, with drives along the reef system 370 feet east and 240 feet west, the west drive being connected to the surface by another adit opening. A connection has been made to the surface from the east drive at 190 feet from the adit, and two short rises were previously in existence 20 feet or so on either side of the adit. At 30 feet in the west drive a winze was sunk 50 feet and a level has been driven along the lode. Stoping is in progress above this level and above the east level.

Tags: AU-VIC, GA Publication, Geology, Published_External, Record, geology, mineral deposits, resource assessment
Organization: Geoscience Australia Data