AndreaBozzo/ceres-open-data-index huggingface dataset:
Australian geological survey in Pakistan - 1951: activities, results, and suggestions for further aid to Pakistan

In December, 1950, the Pakistan Government filed a formal application to Australia, through the Technical Assistance to South-East Asia Co-operation Scheme, for three geologists to carry out geophysical surveys in Pakistan. In May 1951, the geologists, J.F. Ivanac and D.M. Traves of the Bureau of Mineral Resources and D. King of the South Australian Mines Department, arrived in Pakistan. Their instructions were to carry out a geological survey of a portion of the Gilgit Agency, and to discuss with the Director of the Pakistan Geological Survey or any other Government Officer familiar with the problem, the alluvial gold deposits of Chitral River and the lignite deposits of West Bengal and Sind. Field investigations commenced from Gilgit in June 1951, and the party spent four months in the region. This report gives an account of the visit and the results of the investigation.

Tags: GA Publication, Geology, PK, Published_External, Record, geology, mineral deposits
Organization: Geoscience Australia Data
Are there possibilities for a geophysical survey in the Cloncurry district

The purpose of a visit to the Cloncurry district, which lasted from 21st August to 30th September, 1951, was to see what aid geophysical work could give in the search for copper deposits in this field which is one of the biggest mineral fields in Australia. While the Cloncurry district in the past produced copper from many small but rich deposits, only a few exceeded 200,000 tons, and the search now is being conducted mainly with the idea of finding and developing huge but relatively low grade copper deposits with at least several hundred thousand tons, or perhaps millions of tons of copper ore containing at least 2.5 to 5 percent copper. It is possible that geophysics might help in this search, and consequently, a number of old copper mines were visited and some geophysical test traverses made. With the rather limited facilities available the tests were confined to self-potential measurements and to a few traverses with a new Atlas gravity meter, especially suitable for ore prospecting because of its lights weight and transportability and its high sensitivity and accuracy. This report gives an account of the survey and its results.

Tags: AU-QLD, GA Publication, Geophysics, Published_External, Record, geophysics, mineral deposits, resource assessment
Organization: Geoscience Australia Data
National Bushfire Extents - Near Real-Time

This spatial product shows ‘near real-time’ bushfire and prescribed burn extents for all jurisdictions who have the technical ability or appropriate licence conditions to provide this information into a national product. This dataset can be accessed via the Digital Atlas of Australia: https://digital.atlas.gov.au/maps/digitalatlas::near-real-time-bushfire-boundaries

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<strong>This is a scientific product and should not be used for safety of life decisions. Please refer to jurisdictional emergency response agencies for incident warnings and information.</strong>



<em>This product is funded until 30 June 2026.</em>

Tags: Bushfire, Bushfire Boundaries, Bushfire Extents, National Bushfire Intelligence Capability, Natural Hazards, Wildfires, burnt area
Organization: Geoscience Australia Data
Preliminary geophysical report on the Coronation Hill uranium prospect, Katherine - Darwin area, Northern Territory

This report deals with the application of geophysical methods (other than radiometric) to the Coronation Hill Radioactive Deposit. Results of radiometric gridding of the surface and costeans, field sludge assays, and radiometric drill hole logging are not treated as these are included in entirety in R.B. Allen's report "The Coronation Hill Uranium Prospect," Bureau of Mineral Resources Record 1954/17. Structural indications from magnetic evidence are discussed. These comprise several faults, or zones of weakness, one of which may coincide with the axis of the surface radio-activity. Several interesting magnetic features for which no cause can be proposed are also noted. The highly uncertain nature of the deductions made is emphasised. The method of approach to geophysical applications at Coronation Hill is detailed, and recommendations are made for possible future work.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geophysics, magnetics, mineral exploration
Organization: Geoscience Australia Data
An investigation of a reported "gas-blow" near Wabag, Western Highlands, New Guinea

A phenomenon, thought to be a possible "gas blow", occurring in the Sirunki - Laiagam area, 9 miles west-northwest of Wabag, Western Highlands, was investigated by the writer in August, 1952 after it had been reported to the Senior Geologist at Port Moresby by the Assistant District Officer stationed at Wabag. The writer was accompanied into the area by Patrol Officer T. Dwyer. Pace and compass and time and compass methods were used to record observations on the patrol. A geological reconnaissance map accompanies this report.

Tags: Earth Sciences, GA Publication, PG, Published_External, Record, geology
Organization: Geoscience Australia Data
George Creek uranium prospect. Progress report, December, 1954

The George Creek Uranium Prospect is located 80 miles from Darwin and 9 miles from Adelaide River southwards along the Stuart Highway. It is situated on the side of a hill a few hundred feet west of the highway. The regional geology was mapped by field parties of the Bureau of Mineral Resources during 1954, and will be shown on the Burnside (West) 1-mile sheet. At the prospect, geological and structural investigation is in progress. A radiometric grid survey of the George Creek Prospect was carried out during the week ending 22nd October, 1954.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, geophysics, mineral deposits, radiometrics
Organization: Geoscience Australia Data
Glengarry 1:250 000 topographic map

This map is part of the series that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5 km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. Each standard map covers an area of 1.5 degrees longitude by 1 degree latitude or about 150 kilometres from east to west and 110 kilometres from north to south. There are about 50 special maps in the series and these maps cover a non-standard area. Typically, where a map produced on standard sheet lines is largely ocean it is combined with its landward neighbour. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours (interval 50m), localities and some administrative boundaries. The topographic map and data index shows coverage of the sheets. Product Specifications Coverage: The series covers the whole of Australia with 513 maps. Currency: Ranges from 1995 to 2009. 95% of maps have a reliability date of 1994 or later. Coordinates: Geographical and either AMG or MGA (post-1993) Datum: AGD66, GDA94, AHD. Projection: Universal Traverse Mercator (UTM) Medium: Paper, flat and folded copies.

Tags: 250K scale, AU-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Discovery of fossiliferous Upper Cambrian in Central Australia

In October, 1951, geologists G.F. Joklik and S.A. Tomich from the Harts range party of the Commonwealth Bureau of Mineral Resources inspected the section along the Ross River in the Fergusson Ranges fifty miles east of Alice Springs. They collected fossils from several localities discovered by C.T. Madigan, who had regarded the high fossiliferous horizon as basal Larapintine. He describes the rocks as 'worm-eaten quartzite, with moulds suggesting Isoarca' and remarks that 'no good fossils were found'. It is this bed that has yielded the Upper Cambrian fossils. Fossils collected in the deeper horizon generally confirm Madigan's observations. The results of this investigation are recorded and discussed in this report.

Tags: AU-NT, GA Publication, Geology, Published_External, Record, palaeontology
Organization: Geoscience Australia Data
L104 Jervis Bay Power Station Site Seismic refraction survey, ACT, 1970

At the request of the Australian Atomic Energy Commission, the Bureau of Mineral Resources, Geology &amp; Geophysics conducted a seismic refraction survey on the site chosen for construction of a nuclear power station. The purpose of the survey was to determine the foundation conditions at the site and the properties of the rocks in relation to excavation methods and support of the proposed structures. The bedrock of the area consists of Permian sandstone (Jervis Bay Sandstone) overlain in places by unconsolidated Quaternary beach and dune sands. During the seismic work it was found that the sandstone beds have a relatively wide range of seismic velocities; often a higher-velocity bed overlies a lower-velocity bed, and this makes seismic refraction work difficult and less accurate. This is confirmed by laboratory measurements of seismic velocities on drill cores. Thin beds of higher- and lower-velocity sandstones occur, some too thin to be resolved by the seismic method. The seismic profiles presented must be considered bearing in mind these difficulties, Haterial sufficiently consolidated for foundations is shallow, and the seismic velocities indicate that some blasting will be necessary to excavate to the desired depth of 10 feet above mean high water level.

Tags: AU-ACT, Published_External, Seismic Data, Seismology and Seismic Exploration, geophysics, seismic refraction, seismic survey, seismic velocity
Organization: Geoscience Australia Data
Bauxite in the Wessel Islands, Arnhem Land, Northern Territory of Australia

Pisolitic bauxite containing between 40 and 50 per cent available alumina was discovered on islands off the north-east coast of Arnhem Land in 1949, and after preliminary reconnaissance in 1951 a thorough exploration of the deposits on Marchinbar Island, Wessel group was undertaken by the Australian Aluminium Production Commission. The island is composed of a gently titled alternating sequence of sandstone, siltstone and shale of upper Proterozoic age bearing remnants of a lateritized surface which includes the bauxite occurrences. Bauxite has developed by lateritization of a sericite-quartz siltstone containing rather more than 50 per cent sericite. The rock contains 65 per cent total silica, 19 per cent alumina and 6 per cent potash. Economic bauxite is mainly confined to the Pisolitic zone which has a maximum depth of 16.5 feet and rests upon red or red and black tubular and massive laterite. Over limited areas high alumina values persist downwards into the red tubular zone for a few feet. The deposits were proved by sampling pits sunk at intersections of rectangular grids spaced at 400 feet by 200 feet, except for one deposit (Fox), which was tested on a wider scale. Proved reserves are given in the following table, but the figures for Fox deposits are of a lower order of accuracy and should be regarded as indicated reserves. [See record for full details]. The total is equivalent to 4,500,000 tons of available alumina or 2,380,000 tons of aluminium metal.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, mineral deposits, resource assessment
Organization: Geoscience Australia Data
Geophysical exploration in the Carnarvon (N.W.) Basin, Western Australia

This report describes the geophysical surveys made by the Geophysical Section of the Bureau to assist in the search for oil in the Carnarvon Basin (North-west) of Western Australia. The geophysical work completed to the present time consists of gravity and seismic surveys.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, geophysics, gravity, prospectivity, seismics
Organization: Geoscience Australia Data
Brief report on an investigation of mines in the Harts Range and Plenty River mica fields, Northern Territory

An examination was made of many of the mines in the Harts Range and Plenty River mica fields during the latter portion of 1951, in the company of Messrs. G.F. Joklik and W. Roberts. The work involved mine surveying and mapping. A great deal of information of a general nature was obtained from Mr. Joklik, who has spent much time studying the regional geology of the area and the mica deposits. The observations here recorded in regard to mining are the writer's responsibility. The geology of the deposits, mining, and exploration, are discussed.

Tags: AU-NT, GA Publication, Geology, Published_External, Record, geology, mineral deposits, mineral exploration, mineralogy
Organization: Geoscience Australia Data
Geology of the Mount Elliott copper mine Selwyn, Queensland

This report presents the results of detailed geological mapping of an area of approximately seven square miles surrounding the Mount Elliott copper mine, Selwyn, Queensland. The survey was made to determine the relationship between the geological structure and the mineralized zone containing the Mount Elliott copper deposit. A geological map of the actual exposures has been compiled (Plate 1) and interpretations of this data are shown on one plan (Plate 2) and eight sections (Plates 3, 4, 5 and 6). This report is intended as a supplement to the report by C.J. Sullivan (1951) and should be read in conjunction with it.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, geology
Organization: Geoscience Australia Data
Howick area reports

This report deals with the results of 25,000 ft. of boring over an area of 15 sq. miles. Twenty-six coal seams were identified and named. Total reserves of all seams with band-free thickness greater than 4.0 ft. are 200,000,000 tons. Net open-cut reserves (to 9:1 ratio) of 7,500,000 tons over an area of 400 acres were tested and defined on four seams. All work in the Howick Area was done in the period March, 1952, to June, 1953.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, commodities, geology, mineral deposits, resource assessment, stratigraphy
Organization: Geoscience Australia Data
Geophysical survey at Mt Brown copper mine, Karangi, New South Wales

A geophysical test survey was made at the Mt. Brown Copper Mine, Karangi, N.S.W in October, 1954.  The survey was undertaken by the Bureau of Mineral Resources at the request of the Mt. Brown Copper Mining Company, supported by the New South Wales Department of Mines, to assist in prospecting the leases for additional ore reserves.  Reopening and developing the present workings is uneconomical without further prospects.  Self-potential, electromagnetic and radioactive methods were used in the survey.  The magnetic results show a distinct pattern, but this appears to be unrelated to the known deposit and cannot be interpreted satisfactorily until a regional geological survey of the area has been made. It is recommended that this be done. No self-potential anomalies or electromagnetic indications which could be caused by an ore body, were obtained in the surveyed area. Parts of the area were unsuitable for electromagnetic work because of the effects of electric power lines.  The very weak variations observed in the self-potential values are accounted for by small local surface effects. .Random radioactive readings over the area gave no indications of radioactivity above background level.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, geophysics
Organization: Geoscience Australia Data
Mount Elliott mine, Selwyn, Queensland

The period 7th to 28th January, 1951 was spent at Selwyn by the writer: approximately one week was spent in preparing a semi-regional map at a scale of 1 inch to 400 feet; one week was given to mapping a smaller area at a scale of 1 inch to 40 feet. Level plans have been constructed showing what are considered to be the broad outlines of ore arrangement and structure and a number of sections have been constructed. Nineteen plans and sections illustrate this report. Twelve typical ore and rock specimens were studied in thin section and the information obtained has been incorporated in this report. An account of the regional geology of the prospect and the geology of the ore deposits is given in this report.

Tags: AU-QLD, GA Publication, Geology, Published_External, Record, geology, mapping, mineral deposits, ore, petrology
Organization: Geoscience Australia Data
Petrographic report on rock specimens from the Soldiers Cap area, Cloncurry district, Queensland

In the following report thirteen rock specimens from the Soldiers Cap area are petrographically described. The specimens were sent in for examination by R.A. Searl. Fifteen specimens are listed in his covering memorandum, but only thirteen were received; specimens with Nos. 4749 and 4805 did not arrive. Some of these rocks present problems in petrogenesis. To solve these problems more detailed collections will have to be made; such collecting should preferably be done by a petrologist in co-operation with the field geologists.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, petrography
Organization: Geoscience Australia Data
Preliminary report on the Tennyson's No. 2 uranium prospect, Edith River, Northern Territory

Geiger-counts exceeding 4 times the background-count in the area were obtained early in 1953 by Mr. S. Tennyson at 6 localities along shear-zones 3.75 miles south-west of the bridge across the Edith River on the Stuart Highway. The area was inspected by R.S. Matheson and D.E. Gardner during May, 1953, and mapped later in the month in a plane-table survey by D.E. Gardner and N.O. Jones. Samples were taken from each of the localities where high geiger-counts were obtained, and then uranium-oxide content was determined radiometrically at Darwin. A base-line was pegged to facilitate geophysical investigation of the area.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, geophysics, mineral deposits, radiometrics
Organization: Geoscience Australia Data
Geological and geophysical investigations at the George Creek uranium prospect, Northern Territory

This report deals with geological and geophysical investigations of the George Creek Uranium Prospect, which is 80 miles by road south of Darwin, N.T. The rocks, sandstone and siltstone, which form part of the east limb of a large north-plunging syncline, belong to the George Creek Formation of Lower Proterozoic Age. The radioactive anomaly within the 3-times-background contour covers an area of 4 acres. Torbernite is found in weak shears, joints, and bedding-plane fractures at the surface. Torbernite and uranite have been intersected by diamond drill holes.  The uranium mineral intersected is below ore grade. Two more diamond drill holes have been recommended; on to test for primary uranium mineral vertically below the most highly mineralised outcrop, the other to test for an extension of uranium mineral below alluvium south-west of the most highly mineralised outcrop.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, geophysics
Organization: Geoscience Australia Data
Geophysical survey at Silver Valley, Copeton, New South Wales

This report describes a geophysical survey made in May 1952 and August 1953 at the Silver Valley mine workings, near Inverell, N.S.W. From the workings there is evidence of mineralisation along a well-defined fissure and one ore shoot has already been partly developed. The survey was made in an attempt to locate other ore shoots of sufficient size to warrant mining operations. Self-potential, magnetic and electromagnetic methods were used in the survey. The self-potential method showed a well-defined anomaly on the eastern extension of the fissure, indicating that a small body of sulphides may exist there with its centre about 300 feet east of the known ore shoot. The magnetic and electromagnetic results showed no pronounced anomalies which could be correlated with any defined ore shoot. Recommendations are made as to how the self-potential anomaly could best be tested. These comprise sinking a shaft at the centre of the anomaly, extending an existing adit, or driving a new adit from a point nearer the anomaly.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, geophysics, magnetics, mineral deposits, mineral exploration, ore
Organization: Geoscience Australia Data
Geochemical prospecting in the vicinity of radio-active deposits and prospects in the Northern Territory, Australia

During the 1953 field season geochemical prospecting techniques were employed as an additional tool in the search for ore deposits in the Northern Territory. Areas of particular interest were those at which radio-active minerals had already been discovered or at which radiometric anomalies were being investigated. The work thus included the already proved Rum Jungle field as well as the new prospects at Brodribb, Waterhouse, Edith River, and Coronation Hill. A direct chemical test for uranium in soils was not used, the discovery of the radio-active areas being left to the sensitive ratemeters now in use. The close association between copper and uranium was used to advantage as it is present at many of the uranium prospects in the Northern Territory. It is a logical step to use the geochemical techniques to locate new copper mineralization, and then to carry investigations further by attempting to locate uranium in the vicinity of the copper, particularly in areas covered by deep soils where ratemeters are of no use. A field test for cobalt, a metal often closely associated with both copper and uranium, was developed, but of the many samples tested for this element only one gave a positive test. It is possible that the cobalt, an element which is extremely mobile in the oxidized zone, has been completely leached and dispersed from the radio-active minerals.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geochemistry, mineral exploration, prospectivity, uranium
Organization: Geoscience Australia Data
Rum Jungle investigations 1951 and 1952: progress report

Mining and exploration activities and geological investigations carried out in the Rum Jungle area during 1951 and 1952 have provided important results and basic information concerning the known uranium deposits, and indicate the presence of numerous interesting prospects requiring further investigation. Details of the results and the nature of the investigations are given in the following pages.

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