AndreaBozzo/ceres-open-data-index huggingface dataset:
Geological report on the Mt Hope copper mine, Mount Hope

Ten days were spent in examination of the property, from July 8th to 18th. All accessible underground workings were mapped in detail on a scale of 30 feet to 1 inch and the surface in the immediate vicinity of the mine on the scale of 100 feet to 1 inch. Mr. J.W. Whiting of the New South Wales Geological Survey provided competent assistance during the surface and part of the underground mapping. Mr W.P. Green of Zinc Corporation Limited and his assistants did everything possible to facilitate the examination of the workings. Plans which have been prepared to accompany this report comprise: Surface plan, Plate 1, plans of all levels and of intermediate stopes, Plates 2-8, east-west cross-sections through the lode at 50 feet intervals, Plates 9 to 13, a longitudinal projection of the lode showing the distribution of mineralisation, and a longitudinal section outlining the amount of stoping which has been done, Plates 14 &amp; 15.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, geology, mineral deposits, mining, ore
Organization: Geoscience Australia Data
Bauxite deposits - Boolarra-Mirboo North District, South Gippsland, Victoria

This report is written chiefly to present estimates of reserves of bauxite proved to date in Gippsland. Consequently, discussions of the geological aspects of the investigation, though essential to an understanding of the subject, are kept to a minimum. The existence of bauxite in the neighbourhood of Boolarra and Thorpdale, County Buln Buln, South Gippsland has been known for some years and bauxite from Nahoo, Allot. 8 Ph. Narracan South, has been used for chemical purposes for over 20 years. Eleven additional discoveries were made from time to time up to April, 1942, when an extensive prospecting programme was undertaken. In the short time that has elapsed since then a further twelve deposits have been discovered, making a total of twenty-four deposits in the adjoining parishes of Moe, Allambee East, Narracan South, Mirboo and Budgeree in the county of Buln Buln. Several of these deposits have been systematically tested by shaft sinking and boring. This exploration is still in progress.

Tags: AU-VIC, GA Publication, Geology, Published_External, Record, geology, mineral deposits
Organization: Geoscience Australia Data
Beach sands investigations, Progress report on the Southport - Coolangatta area (Broadbeach area)

Boring commenced in the Broadbeach area on an East-West line 500 feet south of the northern boundary of DC22. Subsequent boring was carried out along lines 1300 feet, 2100 feet, 2900 feet, 4500 feet, 6125 feet, 7740 feet, 9300 feet, and 10900 feet south of the northern boundary of DC22. The results of the beach sands investigation are presented here. Estimates of the tonnages of heavy-mineral concentrates, the average grades of the heavy-mineral bearing sands and the average thickness of overburden, are tabulated. The complete set of data, from which these figures have been calculated, is attached as an appendix to the report.

Tags: AU-QLD, GA Publication, Geology, Published_External, Record, geology, mineral deposits, minerals
Organization: Geoscience Australia Data
Pacific Sea Level and Geodetic Monitoring Project: Levelling & GNSS Monitoring Survey Report: Tarawa, Kiribati, December 2019

The Australian Bureau of Meteorology (BoM), Geoscience Australia (GA) and the Pacific Community (SPC) work together on the Australian Aid funded Pacific Sea Level and Geodetic Monitoring Project (PSLGMP). The project is focused on determining the long-term variation in sea level through observation and analysis of changes in the height of the land (using Global Navigation Satellite System (GNSS) data) and changes in the sea level (using tide gauges managed and operated by the BoM. It is the role of GA and SPC to provide information about ‘absolute’ movement of the tide gauge (managed by BoM) using GNSS to continuously monitor land motion and using levelling (SPC) to measure the height difference between the tide gauge and GNSS pillar every 18 months.

Land movement caused by earthquakes, subsidence and surface uplift have an important effect on sea level observations at tide gauges. For example, a tide gauge connected to a pier which is subsiding at a rate of 5 mm per year would be observed as a rate of 5 mm per year of sea level rise at the tide gauge. Because of this, it is important to measure, and account for, the movement of land when measuring ‘absolute’ sea level variation - the change in the sea level relative to the centre of the Earth. Relative sea level variation on the other hand is measured relative to local buildings and landmass around the coastline.
Geoscience Australia’s work enables more accurate 'absolute' sea level estimates by providing observations of land motion which can be accounted for by BoM when analysing the tide gauge data.

This report provides the results of the GNSS monument monitoring survey & high precision level survey completed between the Sea Level Fine Resolution Acoustic Measuring Equipment (SEAFRAME) tide gauge and the GNSS Continuously Operation Reference Station (CORS) in Betio, Tarawa, Kiribati from 9th – 19th December 2019. It also provides an updated height of the tide gauge derived from GNSS time series analysis and precise levelling observations.


Tags: COSPPac, Geodesy, Kiribati, PSLGMP, Pacific, Published_External, geodesy, land motion
Organization: Geoscience Australia Data
Micro-examination of samples from bore No 3761, Weilmoringle No 9 bore about 80 miles northeast of Bourke, New South Wales

Weilmoringle No. 9 Bore is situated about 60 miles northeast of Langbien's Bore. The results from a micro-examination of samples taken from 1650 feet down to 1742 feet are given in the report.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, geology, palaeontology
Organization: Geoscience Australia Data
Palaeozoic stratigraphy of Western Australia

The main sedimentary basins of Western Australia are arranged peripherally to the pre-Cambrian shield which forms the greater part of the state. In 1948, the Commonwealth Bureau of Mineral Resources, Geology and Geophysics, by arrangement with the government of Western Australia, commenced detailed geological reconnaissance of the Fitzroy and North-West Basins. In 1948 and 1949, the R.A.A.F. carried out a programme of aerial photography of these basins and this air-photo survey has since been used as the basis for mapping in the field. In the course of this work several discoveries have been made and as only brief mention of them has been made elsewhere they are included in this summary. The main areas of Palaeozoic sedimentation in Western Australia at present known are the Ord Basin in the far north-east, the Fitzroy Basin, the North-West Basin stretching from Onslow to the Murchison River, and the Irwin-Perth Basin stretching from Geraldton to Busselton.

Tags: AU-WA, GA Publication, Geology, Published_External, Record, stratigraphy
Organization: Geoscience Australia Data
Geological report on the Coimadai antimony mine

The country rock of the Coimadai antimony orebodies is Lower Ordovician slate and sandstone, with northerly strike and steep westerly dip. It is intruded by narrow east-west striking pre-mineral porphyry dykes, which dip north and are displaced by or in places form the walls of the lode channels. The antimony lodes are lenticular ore-shoots in fault zones which show signs of intense crushing and shearing, the shoots being usually associated with fault intersections or branches. The workings are divided into two sections: No. 1, Draper's, in which the lode system strikes north-northwest and dips 45-55 degrees west, and No. 2, Bondison's, where the strike is east-northeast and the dip 60 degrees to the north. In No. 1 section most of the ore above the adit level has been extracted, but possibly 400 tons of the 5% Sb, ore have been developed below the level, and prospects of further ore are good. Gold values are much higher in No. 2 than in No. 1 section, but few assay data are available with regard to either antimony or gold content.

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

The Wallendbeen talc workings are situated just east of the Wallendbeen township and railway station in the parish of Wallendoon, County of Harden, New South Wales. The workings, which consist of innumerable pits and shafts, are distributed along a narrow belt of country, usually more than 200 feet wide and extending from approximately 2 miles north to 1/2 mile south of the railway. The main workings at present are at the southern end of the field and the two producing pits were inspected. An examination was also made of a shaft at the northern end of the field. The talc is second-grade material, occurring both massive and schistose and should be referred to as steatite or soapstone.
This report provides an overview of the geology and workings of the deposits.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, mineral deposits
Organization: Geoscience Australia Data
The bauxite resources of Tasmania

This report gives an overview of the bauxite resources of Tasmania. The report provides a summary of the work, investigation, and sampling conducted between 1941 and 1949. The mode of occurrence and types of bauxite are described. A description, which includes a statement of reserves, is given of each of the eleven individual deposits.

Tags: AU-TAS, GA Publication, Geology, Published_External, Record, mineral deposits, mineral exploration, mineralogy, resource assessment
Organization: Geoscience Australia Data
Further magnetic investigation of site of proposed compass swinging base, East Arm, Darwin

This report describes magnetic investigations made at East Arm, for the purpose of determining whether a certain area would be suitable as a site for an aircraft compass swinging base. A similar survey was made on an adjoining area in December, 1944 (Report No. 1945/1) where magnetic conditions were found to be satisfactory but for other reasons the general design was altered and the site of the proposed swinging base was moved from that area. On 9th June, 1945, a request for investigation of the new site was submitted. The instruments used and the methods employed were similar to those used in the December survey and the report on that survey should be consulted for details of the same. The results of the survey are discussed here. Two accompanying plans are included.

Tags: AU-NT, GA Publication, Geophysics, Published_External, Record, geophysics, magnetics
Organization: Geoscience Australia Data
Notes on lateritisation and the origin of opal in Australia

In 1946 and 1947 the writer had excellent opportunities to study the effect of lateritisation in the course of geological reconnaissances in Northern Australia. From field evidence which has been collected on several aspects of lateritisation - origin, products and relationship to geomorphological processes - a detailed account of lateritisation in Australia can be given. Lateritisation and the occurrence of opal are discussed in this report.

Tags: AU, GA Publication, Geology, Published_External, Record, geology, geomorphology, mineral deposits, mineralogy, petrology
Organization: Geoscience Australia Data
Blue Spec mine, Nullagine, Western Australia

The Blue Spec Mine, Nullagine, was visited from 20th to 24th September, 1947. An inspection was made of the mine. No. 3 level (depth 450 feet) was mapped and the antimony-gold occurrences on lease 196, and on the property known as "Blacks", were also briefly inspected. The present position regarding water supply was investigated and recommendations made. The ore reserves, workings, economic considerations, and water supply are discussed in this report.

Tags: AU-WA, GA Publication, Geology, Published_External, Record, mineral deposits, ore, resource assessment
Organization: Geoscience Australia Data
Report on D.L. Murrays bore, W.L.L. 199, near Bourke, county of Gunderbooka, northern New South Wales

D.L. Murray's Bore, south-west of Bourke is the most westerly yet to be examined in that area of New South Wales. From the palaeontological aspect it is probably the most interesting, for the majority of samples contain numerous arenaceous foraminifera of Lower Cretaceous age. Samples were examined from the depth of 25 to 375 feet.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, palaeontology
Organization: Geoscience Australia Data
Mineralization in the Cobar-Nymagee province and its significance

In the recent past, geologists have been inclined to confine their study to the structural traps and openings which localize individual ore shoots and have tended to neglect most other features, including considerations of ore genesis. L.C. Graton has recently remarked that "the out-standing unfilled need lying ahead is the discovery of new mineralized districts". In this connection he speaks of "the all-important standpoint of genetic understanding". As a contribution towards filling this need, the following points, relating to mineralization in the Cobar-Nymagee province, are here presented for consideration.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, geology, metallogenesis, petrology, structural geology
Organization: Geoscience Australia Data
Micropalaeontological report on samples from bores in the Moorlands Coalfield, South Australia

This report describes the results of a micropalaeontological examination of samples, collected from bores nos. Z.18, T.29, HH.57, and PP.59, in the Moorlands Coalfields.

Tags: AU-SA, GA Publication, Geology, Published_External, Record, palaeontology
Organization: Geoscience Australia Data
Preliminary report on scintillometer airborne surveys over the Rum Jungle area and other portions of the Northern Territory

The first airborne scintillometer surveys to be carried out by the Geophysical Section of the Bureau have now been completed. In this work the Shoran radar positioning system was also used for the first time. Detailed surveys were made over an area of about one thousand square miles surrounding the Rum Jungle granite and one of about twenty square miles in the Edith River district. In addition, flights were made over several other known granite masses in the northern part of the Northern Territory and along both sides of the railway line from Batchelor to Katherine. In addition to the Dakota aircraft, an Auster aircraft was chartered for some experimental low-level flights over areas of special interest selected on the basis of indications discovered during the survey by the Dakota. Instruments and methods used in the course of the surveys, results, and conclusions are discussed.

Tags: AU-NT, Airborne Electromagnetics, GA Publication, Geophysics, Published_External, Record, geomagnetism, geophysics
Organization: Geoscience Australia Data
Geology of the Peaks - Narri area, Cobar District

An examination of the New Cobar-Chesney-New Occidental area in 1947 concluded that the discordant contact between slaty and sandy beds in the area was a feature of major importance in ore localisation. Accordingly, an investigation was conducted in the vicinity of Cobar to determine whether a relationship existed between discordant contact and ore formation in that area, and to commence a detailed geological map on a regional scale of the Cobar-Nymagee mineral belt. The general geology, character of the discordant contact, stratigraphy, and economic geology of the area are discussed in this report.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, geology, ore, resource assessment, stratigraphy
Organization: Geoscience Australia Data
Report on Upper Palaeozoic fossils from the north-west portion of the Gilgit Agency, Pakistan

The fossils were collected by D.M. Traves, a member of a party of three Australian Geologists who visited Pakistan in 1951. Collections were made at the following localities: Darband Village, Sandhi Village, and Khaibar Village. A preliminary examination and report on the fossils has been made by Dr. M.H. Khan, Geologist of the Geological Survey of Pakistan. This report contains a description of these fossils and provides a comparison of the faunas found at these localities.

Tags: GA Publication, Geology, PK, Published_External, Record, palaeontology
Organization: Geoscience Australia Data
Systematic Estimation of Earthquake Source Parameters for Continental Australia. Attenuation and Stress Drop

A new continental-scale Fourier spectral attenuation model is developed to resolve source parameters for well-recorded earthquakes occurring within Australian continental crust since 1994.&nbsp;The attenuation model uses almost 6,200 individual earthquake recordings and is valid for hypocentral distances up to 2,000 km. Assuming the Brune (1970) f-2 model, source parameters are derived for over 290 earthquakes from moment magnitude 3.1 ≤ M ≤ 6.6. The stress drop parameter (Δσ) is log-normally distributed with a median estimate of 1.90 MPa, ranging from less than 0.1 MPa to greater than 60 MPa. The estimates of Δσ suggest significant regional variability in earthquake source characteristics for different seismotectonic regions, with earthquakes in Australia’s northwest and Flinders Ranges regions demonstrating stress drops consistently higher than the median value relative to other areas. Given Australia’s sparse monitoring network, it is difficult to attribute a physical justification (e.g., source depth) for this observation. Nevertheless, the regional variations in source parameters will have utility for the selection and development of ground-motion models for national-scale and site-specific seismic hazard assessments in Australia. Importantly, the earthquake source parameters presented herein are explicitly anchored to the attenuation model developed in this study.
Citation: Allen, T.I., 2025. Systematic estimation of earthquake source parameters for continental Australia: attenuation and stress drop. Bulletin of the Seismological Society of America. https://doi.org/10.1785/0120250054

Tags: National Seismic Hazard Assessment, Published_External, Seismology and Seismic Exploration, earthquake hazard, ground-motion attenuation, stress drop
Organization: Geoscience Australia Data
Bauxite investigations - New South Wales: Summary of results at Ellsmore, parish of Murrimba, county of Camden

Four deposits at Ellsmore were sampled for bauxite content. The results, showing the economic bauxite proved, are tabulated in this report. Figures are given for each of the individual deposits and for the Ellsmore area.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, mineral deposits, resource assessment
Organization: Geoscience Australia Data
Administrative centre for the Rabaul district

The principal alternative sites for an administrative centre which have been considered or suggested are discussed from the points of view with which a geologist and vulcanologist is primarily concerned - namely vulnerability to volcanic action, earthquakes, and tidal waves, foundations, water supply and accessibility of material suitable for road resurfacing, aggregate, etc. The areas considered are Rabaul, Nonga-Tavui, Keravat-Kabaira, Vunakanau-Taliligap, and Koko-Rapopo.

Tags: GA Publication, Geology, PG, Published_External, Record, geology, infrastructure, volcanology
Organization: Geoscience Australia Data
The geology and physiography of North Stradbroke Island

For the purpose of obtaining a general understanding of the geology of North Stradbroke Island, field work was carried out on the island from January 8th to February 17th, 1948. Altimeter traverses were made from Dunwich, Amity, Point Lookout and Blue Lake, and from the connecting roads. The southern portion was covered from landing points on the west coast near Russel Island. The results of observations were plotted on to Military Map Queensland Zone 8, No. 182 (Brisbane Valley). Altimeter readings were corrected from the readings of a weekly barograph stationed at Dunwich, on the western side of the island. This report is comprised in two parts. In Part I, the physiography and the geology of the island are described. In Part II, an account is given of the history of the development of the island.

Tags: AU-QLD, GA Publication, Geology, Published_External, Record, economic geology, geology, geomorphology, mineral deposits, stratigraphy
Organization: Geoscience Australia Data
A summary of the stratigraphy and palaeontology of the Lakes Entrance oil shaft, Gippsland, Victoria

The Lakes Entrance Oil Shaft is situated in allotment 21, Parish of Colquhoun, about 2 miles north-east of Lakes Entrance township. The shaft was sunk with the object of developing, by means of low pressure mining methods, the oil-bearing beds known to exist in the lower portion of the Tertiary basin in the Lakes Entrance area. It is estimated that, during mining operations, approximately 12,000 tons of Tertiary sediments were excavated. Consequently a unique opportunity was afforded the palaeontologist and geologist to study the stratigraphic sequence of Tertiary beds in the Lakes Entrance area. During visits paid to the scene of operations, extensive collections of fossiliferous material were made by the author. This report comprises notes on the scope of the micro-palaeontological investigation, the stratigraphy and the palaeontology of the Lakes Entrance Oil Shaft.

Tags: AU-VIC, GA Publication, Geology, Published_External, Record, palaeontology, stratigraphy
Organization: Geoscience Australia Data
Bass Basin, Basic Data Compilation

This product contains basic data drawn from Geoscience Australia's in-house databases.  The data relates to the Bass and Durroon Basins, and provides information on bathymetry, gravity, magnetics, biostratigraphy, porosity and permeability, geochemistry, velocity and hydrocarbon shows.

Tags: Earth Sciences, GA Publication, Published_External, Record, bathymetry, geochemistry, geophysics, hydrocarbons, seismics
Organization: Geoscience Australia Data
Geology and mineral resources of the Murray Valley region

The region under review may be broadly subdivided into three distinct geological and geophysical areas which are here discussed as separate entities. The geology, physiography, and mineral resources of each area, and the future mineral prospects of the region as a whole, are discussed in this report.

Tags: AU-NSW, AU-SA, AU-VIC, GA Publication, Geology, Published_External, Record, geology, mineral deposits, resource assessment
Organization: Geoscience Australia Data
Micro-examination of samples from bore No 3853 on EW Langbien's Bullaroon Station, Bourke, northern New South Wales

Bore No. 3853 on E.W. Langbien's Bullaroon Station, Bourke is situated 2 miles west-northwest from Bore No. 3825 on the same property and reported upon 7/12/43 and 2/11/44. This report details the results of the micro-examination of samples taken from 28 to 386 feet down.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, geology, palaeontology
Organization: Geoscience Australia Data
New South Wales open cut coal programme, Newcastle region, Swansea South area: drilling results

A total of 16 rotary cored bores were sunk by the Bureau in Portions 14, 15, 16 and 17, Parish of Wallarah, Northumberland County, 5 miles south of Swansea. Approximately 1,100 ft. of "Test and Define" drilling proved a possible maximum of 960,000 tons of coal, or a minimum of 750,000 tons in the Wallarah Seam under an average overburden coal ratio 5:1. The overburden is mainly conglomerate. The geology of the area and mining are discussed in this report. The results of drilling are detailed in the accompanying plates, stratigraphic logs, and descriptive bore logs of the Swansea South area.

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