Legacy product - no abstract available

This statement supplements Record 1952/3 by H.B. Owen, which recorded the preliminary results of drilling for open-cut coal in the northern part of Portion 11, Ph. Stockrington near Newcastle, N.S.W. A further 33 holes, entailing 3,220 feet of drilling, were sunk in an area of about 430 acres immediately south of the area reported on by Owen. The majority of the holes were drilled into the Borehole Seam: two encountered only the beds below the Borehole Seam, and a number of holes encountered seams which may be the Australasian, Dudley, Yard, and Sandgate Seams. The results of the drilling indicate that the Borehole Seam is not suitable in this area for open-cut mining because of present high quality coal standards; however the lower plies of the seam, averaging 3 feet 6 inches in total thickness may be suitable for underground mining over a limited area of at least 25 acres. Total indicated reserves in this area are only 130,000 long tons (calculated on the basis of 1,500 tons per acre foot); the quality of the coal would be only fair: calorific value of about 11,500 B.Th.U/lb., ash content about 20%, and the coal would have some coking properties. Further drilling may increase this as workable area. It is considered that the preliminary results did not justify extensive prospecting of the Australasian(?), Dudley(?), Yard(?), or Sandgate Seams.

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.

The island of Timor has attracted the attention of geologists for more than one hundred years. The first geological investigations were carried out on behalf of the Government of the Netherlands East Indies as early as 1829. This report has been compiled using information obtained during previous geological investigations, and the data supplied in existing geological reports, and comprises notes on the stratigraphy and structure of the island, with reference to oil prospects.

Details concerning the reserves of iron ore in Australia have been tabulated in this report. The report provides estimates of the grade and probable reserves of ore for the known Australian deposits.

Australia holds the world's largest resources of uranium recoverable at low cost, principally in the uranium-rich Olympic Dam iron oxide Cu-Au (IOCG) deposit together with the Ranger and Jabiluka unconformity-related deposits and Yeelirrie surface-related deposit. Despite this impressive inventory, resources of several other styles of uranium deposits appear to be under-represented in Australia relative to geologically similar regions elsewhere in the world. In particular, Australia has no known giant uranium deposits hosted by Mesozoic or younger sedimentary basins, although recent discoveries in the Frome Embayment have significantly increased total resources of `sandstone' uranium in the region. Major deposits directly related to magmatic processes also appear to be under-represented, given the abundance of unusually uranium-rich igneous rocks in Australia. The Australian Government's Onshore Energy Security Program (OESP 2006-2011) is providing pre-competitive geoscientific data and new area selection concepts to assist in reducing exploration risk and to support an assessment of onshore energy and uranium potential. This report examines the key processes controlling where and how uranium mineralisation occurs in Australia and elsewhere. Based on this process understanding and on descriptions of well-documented systems, we develop generalised models of three distinct families of uranium mineral systems, including exploration criteria. The purpose of the report is to present a revised framework for a fresh assessment of Australia's uranium mineral potential. This systems-based approach, when combined with empirical data, provides a means of identifying previously unrecognised uranium provinces or districts. The report has three parts. First, the fundamental chemical controls on uranium transport and deposition in aqueous geological systems are reviewed. Second, a new scheme of classification of uranium deposits is proposed (see below). Third, each of three families of uranium mineral systems, plus hybrid systems, is described in terms of ore-forming processes, essential components of the mineral system, and mappable criteria. Exploration models for key systems are presented in figures and tables.

Australia's Identified Mineral Resources is an annual nation-wide assessment of Australia's ore reserves and mineral resources.

A visit of one month was paid by the writer to the North-West Basin and the Fitzroy area of the Desert Basin. It is largely due to the careful planning of the excursions by the Senior Geologists in charge that a coherent picture of the stratigraphical and tectonical conditions was obtained within the comparatively short time at disposal. This note contains a few remarks on the stratigraphy and tectonics of both areas in connection with oil prospects.

No abstract available

These maps were made initially for the PDAC 2001 International Convention. They have been published and made available via the web. There are two maps for each of the following commodities (gold, nickel, lead-zinc and copper). The first map depicts Australia's mineral occurrence locations, deposits, potential rock units and geological regions with the mineral occurrence density grid, while the second map provides an infrastructure theme and the mineral occurrence density grid. Infrastructure includes roads, railways and pipelines.