AndreaBozzo/ceres-open-data-index huggingface dataset:
Geophysical survey of the Mariposa area, Zeehan, Tasmania

The Zeehan silver-lead-zinc field is in the West Coast Region of Tasmania. Following on the geophysical work carried out for Zeehan Explorations in 1947-1948, the Bureau was requested to carry out a survey on the Mariposa lease held by North Broken Hill Ltd. The purpose of the survey was to examine the Mariposa area for possible magnetic and gravity effects associated with the known mineralization and thence to determine the extent of this mineralization; and also to investigate the swamp covered limestone area for hidden mineralization. Further, it was considered that the results of the survey and behaviour of the instruments in the difficult terrain would serve as a guide to the usefulness of the magnetic and gravity methods in other similar prospecting areas in the Zeehan field. An account of the geophysical work and its results is given in this report.

Tags: AU-TAS, GA Publication, Geology, Published_External, Record, geophysics, gravity, magnetics, mineral deposits
Organization: Geoscience Australia Data
Report on analyses of salt samples for Dr Sturmfels

One gram of sample No. 1 and 2 grams of No. 2 were dissolved in about 100mL of hot water. After dissolving the soluble portions the solutions were filtered and the undissolved portions dissolved and weighed. This weight subtracted from the original weight of the sample gave the amount of soluble salts. The filtrate was diluted to 250 mls with distilled water, 100 mls being used for Ca and Mg determination. The results of this experiment are given in the report.

Tags: GA Publication, Geochemistry, Published_External, Record, geochemistry, research
Organization: Geoscience Australia Data
Preliminary report on Cambrian fossils collected from the Barkly Tableland and adjacent areas in Queensland and the Northern Territory

This report describes the fossils collected by D.M. Traves early in 1948 from the Barkly Tableland and adjacent areas in Queensland and the Northern Territory. The sequence of Cambrian faunas as far as it can be recognised in the present collection corresponds to the revised sequence given by F.W. Whitehouse in "The Cambrian Faunas of North-East Australia". This report comprises stratigraphical and palaeontological notes, and a preliminary list of fossils with notes on the lithology of the rocks in which they occur.

Tags: AU-NT, AU-QLD, GA Publication, Geology, Published_External, Record, geology, palaeontology, stratigraphy
Organization: Geoscience Australia Data
A 'virtual' structural field trip of the North Pilbara

AGSO Record 2000/45 is a report of the results of specialist structural geological studies in the North Pilbara between 1997-2000 and, for the first time, this report provides a comprehensive synthesis of the structural evolution of the resource-rich North Pilbara Craton.
A print, CD-ROM, and web based output.
The report can be viewed with a standard web browser. Traditionally, the science of structural geology is presented in a one-dimensional printed text document format with accompanying maps, drawings, and images referred to from the text at appropriate points. This approach creates a problem in communication, as structural geology is four dimensional (the three spatial dimensions and time). The report is structured so that the new information can be accessed in three different ways. 1) a 'standard' way where the text is arranged chronologically and where the user can skip to sections of interest by embedded hyperlinks; 2) geographical regions on a map with hyperlinked text explanations, maps, and images, and; 3) time-based break up of the text (by structural events eg D1, D2 etc) so that the same event can be compared across regions. A printable version is also available on the CD-ROM. Over 200 scanned photographs are located spatially on active maps so the user can see the geology described in their correct spatial position and in relation to other areas. This provides a 'virtual' fieldtrip for the user, who can decide where they want to go in the report. The report can be viewed with the standard web browser.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, geology, structural geology
Organization: Geoscience Australia Data
Report on the occurrence of quartz crystals at Teetulpa, Wadnaminga and Kings Bluff, South Australia

The investigation was carried out on July 6th and 7th in company with Mr. S.B. Dickinson, of the South Australian Mines Department, and Mr. Kevin Smith, of Broken Hill Pty. Ltd., whose services were made available by courtesy of the Company. Mr. Smith had worked on the Teetulpa goldfield in 1913 and the visit was the result of his recalling that he had seen quartz crystals in some of the workings at that time.

Tags: AU-SA, GA Publication, Geology, Published_External, Record, mineral deposits
Organization: Geoscience Australia Data
Source rock and maturity modelling of the northern Lawn Hill Platform, Isa Superbasin - PART B

The main aim of this study is to use petroleum systems analysis to improve the understanding of the petroleum systems present on the Lawn Hill Platform of the Isa Superbasin. Part A of this report series reported the results of burial and thermal modelling of two wells (Desert Creek 1 and Egilabria 1). Results from the 1-D modelling help other aspects of interest such as the hydrocarbon generation potential and distribution of hydrocarbons by source rock which this publication presents. Modelling uncertainties are reported and described, highlighting knowledge gaps and areas for further work.

Tags: EARTH SCIENCES, GEOLOGY, Isa, Lawn Hill Platform, Published_External, modelling, petroleum systems
Organization: Geoscience Australia Data
Department of Supply and Development, Commonwealth Copper and Bauxite Committee eighth report : Australian bauxite resources.

During the Mullins Harbour - Wedau Reconnaissance (South Eastern Papua) carried [out] in 1953 by Mr. J.E. Thompson, Senior Geologist of the Bureau of Mineral Resources, a section was sampled along the Middle Nigo-Nigo River. Of a number of samples sent to Canberra for petrological and palaeontological examination only eight proved fossiliferous. The following is a list of samples examined listing lithology and microfauna determined by the author and the age assigned to each.

Tags: AU, GA Publication, Geology, Published_External, Record, mineral deposits, minerals
Organization: Geoscience Australia Data
Notes on felspar at Broken Hill

Within three miles of Broken Hill railway station are numerous pegmatite dykes carrying a high proportion of massive felspar. A few of these dykes are worked sporadically by gougers. On June 8th and 9th several of the dykes which were being, or had been worked were examined in company with Mr. B. Hadley, Inspector of Mines. 
A description of the individual deposits and a discussion of production capabilities are presented in this report.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, mineral deposits, mining, resource assessment
Organization: Geoscience Australia Data
National Geochemical Survey of Australia: The Geochemical Atlas of Australia

The present report is a compilation of 531 geochemical maps that result from the National Geochemical Survey of Australia. These constitute the first continental-scale series of geochemical maps based on internally consistent, state-of-the-art data pertaining to the same sampling medium collected, prepared and analysed in a uniform and well documented manner and over a short time period (four years). Interpretations of the data and maps will be published separately.
The geochemical maps can be used for better understanding the accumulation, mobility and significance of chemical elements in the near-surface environment of Australia. It is expected that they will provide a new, additional pre-competitive dataset for the energy and mineral resource exploration industry, which should help prioritise areas for further exploration investment and thus reduce risk. Further, it is also likely that some of the geochemical maps will find use in other disciplines related to natural resource management and environmental monitoring.

Tags: AU, Earth Sciences, GA Publication, Published_External, Record, environmental, geochemistry, mineral exploration, regolith, soils
Organization: Geoscience Australia Data
The 2012 Australian Earthquake Hazard Map

This document presents a new set of earthquake hazard maps for consideration in the next revision of the earthquake loading code AS1170.4 "Structural design actions: Part 4 Earthquake actions in Australia". The earthquake catalogue used here includes events up until 2011. It is a combined version of several catalogues provided by external agencies. This represents the most complete catalogue of earthquakes compiled for Australia. The catalogue is more consistent through conversion of various magnitude measurements into a 'pseudo ML' scale. A systematic logic is used to select preferred magnitude types. Aftershocks, foreshocks and mine blasts have been identified and the declustered catalogue used here is cleaner than any previous Australian catalogue.  Earthquake source zones applied in the hazard map use a unique combination of three different layers, which capture seismic characteristics at sub-national, regional and high-activity point scales. The map is one of the first in the world to apply a semi-quantitative measure of Mmax for majority of the source zones in the map. We apply recently developed ground motion prediction equations based on modern methods and data. These equations were used to calculate the ground motion at a range of response spectral accelerations, rather than just calculating the hazard for peak ground acceleration (PGA).
A suite of maps is calculated using GA's Earthquake Risk Model (EQRM).  The EQRM is open-source, allowing the results to be tested or modified independently. The final 2012 Australian earthquake hazard maps for a range of return periods and response spectral periods are presented herein.

Tags: Earth Sciences, GA Publication, Published_External, Record, WMS, earthquakes, geohazards, hazards, seismology, web map service
Organization: Geoscience Australia Data
Summary of oil-drilling activities in Australia and New Guinea

This summarised account of oil-drilling activities in Australia and New Guinea is given in two parts, first, a summary of past operations, and second, the status of investigations. Part 1 is almost entirely factual. The object has been to present a summary account of actual drilling operations, the results being obtained and the expenditure incurred therein. Part 2 states briefly the position we appear to have reached in the search for oil and summarises any present activity. The notes are given by States and Territories commencing with New Guinea and thence in clockwise order. "New Guinea" means the island of New Guinea and includes the Mandated section of the island as well as Papua.

Tags: AU, GA Publication, Geology, PG, Published_External, Record, commodities, geology, petroleum exploration, petroleum geology, petroleum reserves
Organization: Geoscience Australia Data
Notes on Palaeozoic stratigraphy, Cambridge Gulf area

At the end of the 1949 field season A.A. Opik, accompanied by D.M. Traves, collected fossils and made stratigraphical observations in the area between the lower reaches of the Ord River and the Victoria River. This report gives a preliminary summary of the results of the journey.

Tags: AU-WA, GA Publication, Geology, Published_External, Record, palaeontology, stratigraphy
Organization: Geoscience Australia Data
Positions and orientations for the Queensland corner reflector array, Australia: Report on geodetic surveys conducted in May and June 2018

The Queensland corner reflector array is increasingly being used as a globally unique calibration and validation infrastructure for orbiting Synthetic Aperture Radar sensors. In May and June 2018, Geoscience Australia undertook field survey work at all 40 corner reflector sites to compute a more accurate determination of the position of the corner reflector apex point. This Geoscience Australia Record describes the design and procedure of the field surveys, and the data processing undertaken to arrive at new positions and associated uncertainties for each corner reflector apex point. The positions we report here supersede those that were previously published by Garthwaite et al. (2015a). We also report here the orientation of each corner reflector (at the time of survey) calculated from the new survey observations. We find that the corner reflector orientations (i.e. azimuth and elevation of the corner reflector boresight) are within 2 degrees of the values used during post-installation alignment in 2014.

Tags: EARTH SCIENCES, Geodesy, Published_External, Satellite, Space Vehicle and Missile Design and Testing, TECHNOLOGY
Organization: Geoscience Australia Data
Mineral deposits of the Fingal-Cudgen areas, northern New South Wales

The deposits of heavy mineral sands along the East Coast of Australia are being investigated primarily to determine their content of monazite. These deposits contain most of the known world reserves of zircon and rutile for which they are being exploited at various localities. Monazite, a phosphate of cerium, lanthanum, praseodymium and other rare earths, with thorium silicate, is utilised commercially as a source of cerium and of thorium. In this investigation, the thorium content on the monazite is being determined on the basis of its radioactivity. A principal deposit, and two smaller deposits, in the Fingal-Cudgen area were investigated. The geology of the area, methods of testing, and the results of the investigation are discussed in this report.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, geology, mineral deposits, mineralogy, resource assessment
Organization: Geoscience Australia Data
Electrical Conductivity Structures from Magnetotelluric Data in Cloncurry Region

Broadband and audio magnetotelluric (BBMT and AMT) data at 476 sites on a 2 Km grid were acquired in the Cloncurry region between July and November 2016. The survey covered an area of appriximatly 40 km x 60 km on the eastern margin of the Mount Isa Province. The Cloncurry magnetotelluric (MT) project  was funded by the Geological Survey of Queensland and is a collaborative project between the Geological Survey of Queensland  and Geoscience Australia. Geoscience Australia managed the project and peformed data QA/QC, data analysis, and produced two-dimensional (2D) and three dimensional (3D) inverse models for both the BBMT and AMT data. This report details the field acquisition program and the methodologies used for processing, analysing, modelling and inverting the data.

Tags: Earth Sciences, Geophysics, HVC_144686, Mt Isa, Published_External, magnetotellurics
Organization: Geoscience Australia Data
The petrography of sedimentary rocks from the Torquay area, Victoria

This report comprises descriptions of certain rocks collected by Dr. H.G. Raggatt in the Torquay - Airey's Inlet area, Victoria. The rocks are isolated specimens and no general conclusions applicable to the group as a whole have been drawn.

Tags: AU-VIC, GA Publication, Geology, Published_External, Record, petrography
Organization: Geoscience Australia Data
Proposed development programme for greisen orebody, Mt Bischoff tin mine

The mine manager at Mount Bischoff Tin Mine, Mr. Eddy, proposes to mine the Greisen Orebody by means of a system of gloryholes, in combination with stoping. It was requested that a scheme of development work necessary for opening up the orebodies preparatory to mining should be decided on and set out on paper. This report is concerned with the proposals for development and testing work which would determine whether the larger gloryhole would be justified or whether a smaller gloryhole on the hanging wall ore and stoping on footwall ore would be a more profitable method.

Tags: AU-TAS, GA Publication, Geology, Published_External, Record, mineral deposits, ore, resource assessment
Organization: Geoscience Australia Data
Bauxite resources of the Moss Vale district, New South Wales

The occurrence of ferruginous laterite in the vicinity of Moss Vale, Bundanoon and Wingello, County of Camden, has long been known. In order to define any zones enriched in alumina, a subsurface prospecting campaign was undertaken by the Australian Aluminium Production Commission at Wingello during July and August, 1948 and at Ellsmore in the early part of 1949. The results of this investigation and previous work are summarized in this report. Detailed descriptions of the laterite and of the individual deposits are given.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, mineral deposits, mineralogy, resource assessment
Organization: Geoscience Australia Data
Geochemical reconnaissance in Cobar and vicinity, October 5-22, 1948

This was the first study of its kind, by the Commonwealth team. The study included demonstrations of the dithizone tests for traces of some heavy metals in the field environment, of operational and sampling procedures, and geochemical reconnaissance. Several reconnaissance traverses were sampled and examined. Extractable forms of copper and, in a very presumptive manner, extractable forms of lead and zinc were sought in the test materials. In addition, tests for copper, lead and zinc were made in some ignited and fused specimens. The testing procedure and results are described in this report.

Tags: AU-NSW, GA Publication, Geochemistry, Published_External, Record, geochemistry, mineral exploration, research
Organization: Geoscience Australia Data
Prospecting campaign for Mount Bischoff tin mine

It is considered that the future of the Mount Bischoff field depends on the success or failure attending efforts to find additional payable ore. The problem then is to locate large tonnages of replacement ore either as extensions of known orebodies or as new orebodies. The results of the campaign outlined in this report will be of paramount importance to the maintenance and development of the field, and the campaign should be conducted energetically by diamond drilling, supplemented by underground explanatory work. The geological interpretation, objectives of the drilling, and proposed drilling campaign are outlined in this report. Three accompanying geological plans are included.

Tags: AU-TAS, GA Publication, Geology, Published_External, Record, geology, mineral deposits, mineral exploration
Organization: Geoscience Australia Data
Exploring for the Future - Bulk density data from NDI Carrara 1, South Nicholson region, Australia Destructive Analysis Report

Exploring for the Future (EFTF) is an Australian Government program led by Geoscience Australia, in partnership with state and Northern Territory governments. The first phase of the EFTF program (2016-2020) aimed to drive industry investment in resource exploration in frontier regions of northern Australia by providing new precompetitive data and information about their energy, mineral and groundwater resource potential.
One of the key discoveries of the first phase of the Exploring for the Future program was the identification of a large sedimentary depocentre in the South Nicholson region, an underexplored area straddling north-eastern Northern Territory and north-western Queensland. This depocentre, up to 8 km deep, was termed the ‘Carrara Sub-basin’ by Geoscience Australia. It is interpreted to contain thick sequences of Proterozoic rocks, broadly equivalent to rocks of the greater McArthur Basin (Northern Territory) and northern Lawn Hill Platform and Mount Isa Province (Queensland), known to be highly prospective for sediment-hosted base metals and unconventional hydrocarbons.
In order to gain insights into the resource potential of the Carrara Sub-basin, the South Nicholson National Drilling Initiative (NDI) Carrara 1 stratigraphic drillhole was completed in late 2020, as a collaboration between Geoscience Australia, the Northern Territory Geological Survey (NTGS) and the MinEx CRC . NDI Carrara 1 is the first drillhole to intersect the, as yet, undifferentiated Proterozoic rocks of the Carrara Sub-Basin. NDI Carrara 1 is located on the western flanks of the Carrara Sub-basin on the South Nicholson Seismic line (17GA-SN1), reaching a total depth of 1751 mGL, intersecting ca. 630 m of Cambrian Georgina Basin overlying ca. 1100 m of Proterozoic carbonates, black shales and minor siliciclastics .
Geoscience Australia is undertaking a range of investigations on the lithology, stratigraphy and geotechnical properties of NDI Carrara 1 based on wireline data, as well as undertaking a range of analyses of over 400 physical samples recovered through the entire core. This report presents new data from bulk density measurements carried out on selected rock samples as part of this comprehensive analytical program.

Tags: Barkly–Isa–Georgetown, Bulk Density, EFTF, EFTF – Exploring for the Future, MinEx CRC, Minex CRC (Cooperative Research Centre), NDI, Petroleum and Coal Geology, Published_External, Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)
Organization: Geoscience Australia Data
Exploring for the Future—Preliminary HyLogger results of borehole samples from the Southern Stuart Corridor Project area. Northern Territory

The hyperspectral HyLoggerTM instrument for collecting high resolution spectra data of drill core and drilling chips is a widely used and powerful in mineral and energy exploration, including sediment hosted mineralisation and hydrocarbons. It enables mapping of hydrothermal, diagenetic, and weathering assemblages, clarification of stratigraphy, and determination of primary mineralogy.
This report presents key results of hyperspectral data from the HyLogger-3TM instrument collected from drilling in the Southern Stuart Corridor (SSC) project area in the Northern Territory conducted 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 results show that HyLogger plots are in most cases in the most effective means of identification of stratigraphic contacts. HyLogger plots are also especially effective and determining the depth and mineralogy of weathering and distinguishing provenance in shallow transported material such as palaeovalley fill and alluvium. Geological observations are however still crucial, especially in determining texture, which cannot be determined by the HyLogger scans or from photographs of chips and core, and in cases where contamination obscures or confuses the spectral signals. 
Weathering in the SSC can be determined by the appearance of dickite and poorly crystalline kaolinite. This allows a better determination of base of weathering than visual means: generally based of the presence of oxidised iron phases such as goethite and haematite (which are not definitive where the rocks already contained these prior to weathering), or where oxidised iron deposition has not occurred. This aids in depth of weathering mapping from regional AEM data.
The ability of the HyLogger to discriminate between swelling (montmorillonite) and non-swelling (kaolinite, dickite) clays is potentially significant in the prediction of aquifer properties and the validation of borehole MR methods. The detection of zones of potential dolomitisation and dedolomisation through mineralogy (presence of dolomite and possible secondary calcite and magnesite, respectively) in carbonate units has the potential to similarly predict properties in carbonate units, through the potential increase in porosity/permeability of the first and decreased porosity/permeability of the second.

Tags: Alice Springs, EARTH SCIENCES, EFTF, Exploring For The Future, Hylogger, Published_External, Ti Tree, Western Davenport, hyperspectral
Organization: Geoscience Australia Data