AndreaBozzo/ceres-open-data-index huggingface dataset:
The London Bridge limestone, Monaro district, New South Wales

The London Bridge Limestone has been traced along its strike from a point five miles south-south-east of Queanbeyan to a point three miles south-east of Bredbo, a distance of forty miles. At London Bridge this formation attains its greatest development and a large-scale geological map of this area has been prepared. Fossil collections have been made from localities along this formation and the fauna has been examined. A description of the coral Pycnostylus ? sp. nov. is given. The stratigraphical position of this formation has been placed within the Wenlock Epoch, possibly within the Lower Wenlock.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, palaeontology, stratigraphy
Organization: Geoscience Australia Data
L118 Central Eromanga Basin seismic survey, QLD, 1982 Stacked seismic data and images for lines BMR82-02, BMR82-11, BMR82-11A, BMR82-13, and BMR82-10

Geoscience Australia conducted a seismic survey in the central Eromanga Basin in Queensland from July to Late November 1982. This survey was a continuation of the work undertaken in 1980 and 1981 to investigate the structure, stratigraphy, geological and tectonic evolution, and petroleum potential of the area. The survey obtained 485 km of six-fold Common-Depth-Point reflection data, in the Adavale Basin, Cooladdi Trough and Pleasant Creek Arch areas.

Tags: AU-QLD, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, mineral exploration, petroleum exploration, seismic reflection, seismic sections
Organization: Geoscience Australia Data
L102 Galilee Basin seismic survey, QLD, 1971

A seismic investigation of the eastern margin of the Galilee Basin in Central Queensland was made by the Bureau of Mineral Resources in 1971. A seismic traverse was recorded between Lake Galilee No. 1 well and outcrops of the Drummond Group 80 km to the east. This area is covered by Cainozoic sediments and no seismic network has been attempted before the present survey. The area is of economic interest, as oil was recorded in a drill stem test in Lake Galilee No. 1 well in Carboniferous sediments in the interval 2890 to 2910 m and there are coal measures in the Upper Permian. Knowledge of the structure of the basin margin to the east of the well could reveal oil traps and economically mineable coal deposits. For the other two Galilee Basin surveys, please see L106 and L108.

Tags: AU-QLD, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, mineral exploration, petroleum exploration, seismic reflection, seismic sections
Organization: Geoscience Australia Data
Micropalaeontological examination of samples from three bores in Northern N.S.W

Samples from three bores were submitted by the Water Conservation and Irrigation Commission, of New South Wales for micropalaeontological examination namely: 1. Bore No. 8271, K.F. Robinson's "Talyealye" property, 2. Bore no. 8290, J.T. O'Connor's "Shannon" property, Bourke, [and] 3. Bore No. 8302, J.J. Doohan, "Yarralee" property, Wanaaring. A detailed description of the microfaunal content of the samples from these bores is given below.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, palaeontology
Organization: Geoscience Australia Data
The Tertiary and Mesozoic stratigraphy and micropalaeontology of Rough Range bore No. 1, Carnarvon Basin, Western Australia

"Spudding in" operations took place on September 5th, 1953, and oil was discovered on November 1st at the depth of 3,605-3,622 feet. By agreement with the West Australia Petroleum Pty. Ltd. one of us (D.J.B.) went to Learmonth on September 3rd to examine cuttings and cores for foraminifera to help in determining the formations drilled. He carried out his investigations until the well had reached the depth of 4,659 feet, and returned to Canberra on December 30th. Preliminary determinations of foraminifera and radiolaria were made at the site. This report is the result of detailed examination of the microfossils which were brought back to Canberra.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, geology, palaeontology, stratigraphy
Organization: Geoscience Australia Data
Geochemistry of drill core samples from the Stuart Shelf region, South Australia - Exploring for the Future – Baseline whole rock geochemistry data release 2

Geoscience Australia’s Exploring for the Future (EFTF) program aims to enhance decision-making on Australia's mineral, energy, and groundwater resources by providing comprehensive geoscience data. Launched in 2016 with a $225m investment, the program has spawned various national projects, including the Australia's Resources Framework (ARF). The ARF focuses on a national perspective of Australia's surface and subsurface geology, supporting economic and social benefits, including transition to net-zero emissions.

One key sub-project within EFTF is the Geochemistry for Basin Prospectivity (G4BP) module. It explores Australian basins for basin-hosted base metal systems. The current focus (2020-2024) is on the Stuart Shelf region in South Australia, in collaboration with the Geological Survey of South Australia (GSSA) and CSIRO. The efforts aim to refine our understanding of sediment-hosted copper-cobalt-silver (Cu-Co-Ag) potential in this area.

This work has two primary objectives:

Geochemical fingerprinting and baseline data collection: Comprehensive data collection and reanalysis of existing samples aim to establish baseline geochemistry for stratigraphic units.
Mineral system components: Identification of potential metal sources, fluid sources, and trap rocks using a mineral systems approach.

This data release forms the second stage release of new geochemical data for the Stuart Shelf region; the first stage release was detailed in Champion et al. (2023b). There is also an earlier data release (Champion et al., 2023a) featuring reanalysis, by modern analytical methods, of legacy mineralised and/or altered Stuart Shelf and underlying basement samples held at Geoscience Australia.

Tags: EFTF – Exploring for the Future, Geochemistry, Inorganic Geochemistry, Published_External, Stuart Shelf, mineral systems
Organization: Geoscience Australia Data
Magnetic survey of compass swinging site, R.A.A.F. airfield, Point Cook, Victoria

A declinometer survey was made over a proposed compass-swinging base at the R.A.A.F. Airfield at Point Cook, Victoria in January, 1952, to determine its suitability. The results show that there are local magnetic disturbances which cause deviations in excess of the permissible maximum of one quarter of a degree. The site is therefore unsuitable.

Tags: AU-VIC, Earth Sciences, GA Publication, Published_External, Record, magnetics, observations
Organization: Geoscience Australia Data
Discovery of two radioactive prospects, Coronation Hill reservation

High Geiger readings in the vicinity of the Number 1 prospect were first obtained by Sidney Fabian (a prospector for Northern Uranium Development) who drew my attention to this fact and showed me the area on Sunday 14th November, 1954. No detailed work was done. The area was re-visited by the author on Tuesday, 23rd November, 1954. It was on this date that the region of radio-activity and the rock responsible for it were established. The Number 2 prospect was discovered independently by the author on Tuesday 23rd November, 1954, while prospecting along the line of the South Alligator Fault Zone.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, geophysics, mineral exploration, prospectivity
Organization: Geoscience Australia Data
L115 Central Eromanga Basin seismic survey, QLD, 1982 Stacked seismic data and images for lines BMR80-01, BMR80-03, BMR80-04, BMR80-05, BMR80-06, and BMR80-08

Geoscience Australia conducted a seismic survey in the Central Eromanga Basin in Queensland in 1980. This survey was part of a new multidisciplinary study to investigate the structure, stratigraphy, geological and tectonic evolution, and petroleum potential of the area. The survey obtained 478 km of six-fold Common-Depth-Point seismic reflection data, mostly along four long east-west traverses crossing sparsely investigated sedimentary basins between exploration wells. The basins crossed included the Warrabin Trough, Cooper Basin, and Eromanga Basin west of the Canaway Fault.

Tags: AU-QLD, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, mineral exploration, petroleum exploration, seismic reflection, seismic sections
Organization: Geoscience Australia Data
The Waterhouse area, Northern Territory: (preliminary report & maps)

The Hundred of Waterhouse, the north-eastern portion of which has been mapped, extends southward from the Hundred of Goyder. Mapping was carried out on air photos at a scale of 4" = 1 mile, and the information was transferred to a mosaic at a scale of 2" = 1 mile. In the following notes are discussed the general geology of the area, the relationship between the formations mapped and the ore-bearing formations at Rum Jungle, the structural geology of the area, and a uranium prospect which was discovered in the course of the regional mapping. Some recommendations for future geological mapping and prospecting are appended.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, mineral deposits, structural geology, uranium
Organization: Geoscience Australia Data
Petrographic description of seventeen rock specimens from Muswellbrook, New South Wales

The following report contains descriptions of thin sections of 17 rocks collected from cores and outcrops in the Muswellbrook area. This report is for information of officers in the area, who have retained duplicate hand-specimens. Specimens are numbered 1 to 18, and description of one specimen collected (No. 13) is not given here. Discussion of this rock is of academic interest only, and time has prevented its incorporation in the following report.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, petrography
Organization: Geoscience Australia Data
Results of drilling in the Swansea area, New South Wales

This statement sets out the results of drilling by the Bureau within Swansea Sub-area N.S.W. (J.B.C. plan BG-4). The area investigated comprises approximately 115 acres, about 2 miles south of the township of Swansea in the parish of Wallarah, Country Northumberland. In the Swansea area 'test and define' core drilling by the Bureau has indicated coal reserves of approximately 302,000 tons within the physical limits required for open cut exploitation. This total is made up of more than 87,000 tons in the "Open Cut Block" and 215,000 tons in the "West Block". Proving is recommended for the open cut Block and for the West Block, except that in the latter area the obstruction which will be offered to open cutting by the presence of the P.M.G. cable should be considered before proving is undertaken.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, commodities, mineral exploration, resource assessment
Organization: Geoscience Australia Data
L110 & L114 seismic reflection from the Lachlan Fold Belt near Canberra, Gundary Plains, NSW, 1978, 1980

A deep crustal seismic reflection survey, conducted at Gundary Plains near Canberra, to test a digital seismic recording system, produced additional data for interpretation of seismic refraction profiles in the Lachlan Fold Best. Good reflections were recorded down to the probable Moho, at an estimated depth of 41 km. The intracrustal reflections are characterised by bands of seismic energy, which probably represent velocity transition zones within the crust.

Tags: AU-NSW, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, seismic reflection, seismic velocity
Organization: Geoscience Australia Data
Dolomite problem

There are many modern and ancient opinions on the origin of dolomite, and the general opinion on the geological and geochemical side is that the origin of the dolomites is not yet clear enough. That there are different sorts of dolomites is generally agreed. [Five different kinds of dolomite are defined and described. The possible origins and formation of dolomite are discussed.]

Tags: Earth Sciences, GA Publication, Published_External, Record, minerals, petrology
Organization: Geoscience Australia Data
Application of Network Analysis in Exploring Continent-Scale Mineral Datasets

Indicator minerals are minerals that, when appearing as transported grains in sediments, may indicate the presence of mineralisation, hydrothermal alteration or a particular lithology within basinal watersheds[1]. Traditionally the application of indicator minerals in hard rock exploration has involved the use of a shovel, gold pan and hand lens. However, recent technological advancements in automated mineralogy and improvements in microanalytical workflows allow for the rapid identification and characterisation of a large number of indicator minerals across extensive sample suites[2,3]. 

Mineral network analysis techniques provide a visually intuitive approach to facilitate the rapid interrogation of automated mineralogy datasets[4]. Network analysis is a subfield of graph theory used to visualise complex systems. Mineral datasets and their associated geological systems can be visualised as network graphs comprising nodes (vertices) and edges (lines), where nodes and edges represent geological entities and their relationships, respectively. Visualisation of mineral relationships as 2-D or 3-D networks allows for rapid identification and interpretation of co-occurring mineral assemblages potentially indicative of mineralisation within large mineral datasets. 

We have developed an online Mineral Network Analysis (MNA) application that provides geoscientists with a toolkit to visualise and explore large mineral datasets, such as the Heavy Mineral Map of Australia project, which uses automated mineralogy techniques to analyse over 1,300 heavy mineral samples from across the continent[5]. We demonstrate the effectiveness of MNA techniques in domain analysis of a smaller dataset (150 samples; &gt;5,710,000 unique mineral particles) generated from the Geological Survey of Western Australia’s geochronology collection. By using the application to rapidly filter samples in which the zinc-bearing minerals gahnite (ZnAl2O4) and faustite ((Zn, Cu)Al6(PO4)4(OH)8.4.5(H2O)) co-occur, we are able to highlight a sample from the Fraser Zone in Western Australia; an area prospective for base metal mineralisation[6]. In doing so, we highlight the potential utilisation of the MNA tool in modern mineral exploration.

References
[1]McClenaghan, M.B., 2005. DOI 10.1144/1467-7873/03-066
[2]Lougheed, H.D. et al., 2020. DOI 10.3390/min10040310
[3]Porter, J. et al., 2020. DOI 10.1016/j.oregeorev.2020.103406
[4]Morrison, S.M. et al., 2017. DOI 10.2138/am-2017-6104CCBYNCND 
[5]Caritat, P. et al., 2020. DOI 10.11636/Record.2020.031
[6]Walker, A.T. et al., 2022. DOI 10.1016/j.lithos.2021.106536

Presented at the 2022 Goldschmidt Conference

Tags: EARTH SCIENCES, Exploration Geochemistry, Mineral Network Analysis - MNA, Mineralogy and Crystallography, Published_External, hard rock exploration, indicator minerals, microanalytical workflows
Organization: Geoscience Australia Data
Preliminary report on the ABC uranium prospect, Katherine area, Northern Territory

In the course of geological investigation of the area included in the Katherine, Mt. Todd and Lewin Springs 1-miles sheets, carried out by J.H. Rattigan and A.B. Clark, Bureau of Mineral Resources, A.B. Clark found, in September 1953, uranium mineralization subsequently known as the A.B.C. Prospect, 11 miles north-north-east of the township of Katherine. This report is a record of the detailed investigation which followed the discovery.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, geophysics, mineral deposits, mineral exploration, prospectivity, radiometrics, uranium
Organization: Geoscience Australia Data
The Coronation Hill uranium prospect Katherine - Darwin area, Northern Territory

The uranium prospect at Coronation Hill is situated on the south side of the valley of the South Alligator River, 75 miles from the town of Pine Creek, from which it is accessible by trucks in the dry season. The surface showings consist of discontinuous exposures of autunite over an area approximately 400 feet square upon the north-eastern corner of Coronation Hill, an isolated feature within the river-valley. The rocks present are of Proterozoic age. Mineralization is found within two deeply-weathered members of a sedimentary-volcanic complex which forms the basal member of the Upper Proterozoic: the rocks of the prospect may be in part of Lower Proterozoic age. Sulphide mineralization accompanied by a secondary uranium mineral has been found at one point by diamond drilling: the sulphides are principally pyrite and the nickel sulphide bravoite. Mineralization is associated with a partly crushed and highly altered zone adjacent to a mass of Upper Proterozoic sandstone which overlaps the older and lower rocks. The structure is imperfectly understood and the control over mineralization has not been established. Development work, including costeaning, pitting, diamond drilling (1006 feet in two holes) and geophysical surveys (Radiometric, magnetic and electrical) has found no mineralization of economic grade, although it has shown the presence of alteration and sulphide mineralization which indicate that the full potentialities of the prospect have not yet been determined. Further work sufficient to complete preliminary exploration would require a minimum of 2500 feet of diamond drilling on underground operations at least equivalent to 1000 feet of drifting and crosscutting. Diamond drilling is somewhat preferable, since it can reach more deeply below the weathered zone. Only after completion of this additional work can it be determined whether or not the prospect is of economic value.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, geophysics, magnetics, mineral deposits, radiometrics, stratigraphy, structural geology
Organization: Geoscience Australia Data
Northern Australia Geochemical Survey: Data Release 2 – Total (coarse fraction), Aqua Regia (coarse and fine fraction), and Fire Assay (coarse and fine fraction) element contents

This data release is part of the Federal Government’s Exploring for the Future program undertake by Geoscience Australia in collaboration with the Northern Territory Geological Survey and the Geological Survey of Queensland. It is the second staged release of data from the North Australian Geochemical Survey which sampled catchment outlet sediments at 780 sites (including duplicates) for geochemical analysis.

The survey area was chosen to encompass the preeminent mineral provinces of Tennant Creek and Mt Isa, with the region between these two provinces providing a vast prospective exploration frontier, covered by a thin veneer of sediments and basalts, which has been overlooked for mineral exploration in the past.
The data are not only useful for mineral exploration but also for agriculture and environmental management. For agriculture, this dataset can be used to assess soil fertility to maintain sustainable crop production and inform cattle grazing management over such areas as the Barkly Tablelands. The survey establishes a robust geochemical baseline dataset relevant to many environmental issues which can be utilised in development decision making into the future.

This data release includes (1) results of the total chemical analyses of the coarse (&lt;2 mm) fraction of sampled sediments (XRF, ICP-MS), (2) results of the aqua regia analyses of the coarse and fine fractions (&lt;2 mm and &lt;75 µm, respectively), and (3) results of the fire assay analysis of the coarse and fine fractions. Included is a set of georeferenced digital images of geochemical maps based on this dataset.

Tags: EARTH SCIENCES, EFTF, Published_External, geochemical survey, geochemistry, surface geochemistry
Organization: Geoscience Australia Data
L099 Moura Coalfield seismic reflection survey, QLD, 1970

Some experimental geophysical work was undertaken by the Bureau of Mineral Resources at the Moura Coalfield in Queensland in order to investigate the structure of coal seams which lie within 1000 feet of the surface. The aim of the survey was to evaluate the use of geophysical techniques for locating faults of small displacement. Most of the effort was concentrated on shallow seismic reflection techniques but additional techniques (magnetic, gravity, resistivity, electromagnetic and induced polarization) were used. 

The whole area of the survey was covered with a close-spaced grid of gravity and magnetic stations. A lesser effort was devoted to resistivity, electromagnetic, and induced polarization methods, the object being to take advantage of the opportunity to tryout these relatively inexpensive methods in the hope that they might give some indications of fault locations. These methods will be evaluated in a separate Record; this one deals- with the results of the seismic work. Encouraging results were obtained from seismic reflection work. The uppermost economic coal seam was mapped to within 300 feet of the surface and areas of faulting could be deduced from time differences and lack of continuity in reflections.

Tags: AU-QLD, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, mineral exploration, seismic reflection, seismic velocity
Organization: Geoscience Australia Data
Notes on gravity survey of East Gippsland area, Victoria

This report contains notes on a gravity survey of the East Gippsland area, Victoria. The accompanying gravity map shows Bouguer Anomalies over the area in East Gippsland held as Petroleum Prospecting Leases by Lakes Oil Ltd. and Austral Oil N.L. The map is compiled chiefly from the survey by Robert H. Roy Co. U.S.A. and incorporates additional work carried out by the Bureau of Mineral Resources during 1951.

Tags: AU-VIC, GA Publication, Geophysics, Published_External, Record, geophysics, gravity, mapping
Organization: Geoscience Australia Data
Preliminary report on the Brodribb uranium deposit, Northern Territory

The Brodribb deposit, located 13 miles north of the Rum Jungle mine was located by an aerial scintillometer survey in September 1952. A ground examination revealed an order of radioactivity sufficient to warrant geological and radiometric surveys. A total of 1026 feet of costeaning was bulldozed. The increase of radioactivity with little depth and the satisfactory sample values justify exploratory drilling and possibly underground development, which will be started in 1953. The information available to date places the Brodribb deposit in an entirely different geological category from that of the Rum Jungle deposit. Even if the Brodribb deposit proves to be only of very low grade uranium, an entirely new and extensive province for uranium exploration will be opened.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, mineral deposits
Organization: Geoscience Australia Data