Citation

Geoscience Australia provides most of its products for free under a Creative Commons Attribution 3.0 Australia Licence. We only require that you reference the use of our data or information using the following citation:
de Keyser, F. & Wolff, K.W., 1964. The geology and mineral resources of the Chillagoe district, Queensland. Bulletin  070. Bureau of Mineral Resources, Geology and Geophysics, Canberra.

Abstract

This Bulletin presents the results of five months fieldwork carried out by a joint geological party from the Bureau of Mineral Resources and the Geological Survey of Queensland in 1958, and incorporates subsequent scattered field observations in more recent years. The area investigated is covered by the three One-Mile Sheets of Chillagoe, Mungana, and Almaden, and forms the north-western part of the Atherton 1:250,000 Sheet area, North Queensland. Metamorphosed and migmatized Precambrian schist, gneiss, and muscovite granite in the west are separated from folded Palaeozoic geosynclinal sediments by a large fault. The geosynclinal deposits are represented by Upper Silurian to Lower Devonian formations with mixed shelf facies, and, farther east, by the eugeosynclinal flysch sediments of the Middle to Upper Devonian Hodgkinson Formation. Remnants of unconformable lacustrine or estuarine sediments, probably Carboniferous, are also exposed. Upper Permian granites intruded these formations after they had been folded during a Carboniferous orogeny and subsequently eroded, and acid to intermediate volcanics, comagmatic and coeval with the granites, were extruded on a surface of low relief, commonly in ring complexes and cauldron subsidence areas. Associated with the granites is a widespread and varied mineralization which has given rise to numerous deposits of copper, lead, zinc, silver, gold, tungsten, molybdenum, bismuth, tin, fluorspar, and iron. The region remained stable and near sea-level until the Lower Cretaceous transgression from the west, during which sandstone and conglomerate were deposited under littoral conditions. Post-Cretaceous epeirogenesis combined with subsequent stages of faulting and erosion to sculpture the present-day landscape. The area has had an intermittent mining history which reached its zenith in the first ten years of the century, with a partial resurgence in the twenties, and a few subsequent short-lived spasms of activity.
Google map showing geographic bounding box with values North bound -17.0 East bound 145.0 West bound 144.5 South bound -17.5
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Product Type/Sub Type

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license
Creative Commons Attribution 3.0 Australia Licence

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Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1964

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dataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Bulletin
mineral deposits
geology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-17.0
East bound
145.0
West bound
144.5
South bound
-17.5

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Unknown

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onLine

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pdf

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Organisation Name
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Canberra
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Metadata File Identifier

a05f7892-7fd8-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2014-02-14

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unclassified

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Organisation Name
Geoscience Australia
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Canberra
Administrative Area
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Postal Code
2601
Country
Australia
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Downloads
For information on acquiring this product,
please contact Geoscience Australia Client Services via:

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1800 800 173 (within Australia);
 
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