Citation

Walpole, B.P. & Drew, B.J., 1953. The Yeuralba Mineral Field, Northern Territory. Record  1953/032. Bureau of Mineral Resources, Geology and Geophysics, Canberra.

Abstract

A geological investigation of the Yeuralba mineral field was undertaken by the Bureau of Mineral resources as part of the field activities for the 1952 field season. Actual field work occupied five weeks in August and September. Most of this time was devoted to sampling individual greisen occurrences. In addition, a geological map of Yeuralba and the surrounding area was prepared on a scale of 1:25,000. Sandstones and tuffaceous sandstones of Lower Proterozoic age have been folded and intruded by porphyry, epidiorite, and granite, in the Yeuralba area. The granite intrusion was followed by a strong tensional movement and a regional system of black faults and strong joints was developed. Lower Cretaceous sandstone and porcellanite unconformably overlie the igneous rocks and Lower Proterozoic metamorphics. The granite has been hydrothermally altered to a marked degree along these fractures. Tin, tungsten, gold and bismuth mineralization is associated with greisen, tourmalite, topazite, and other alteration products of the granite. Cassiterite-bearing tourmalites and assiterite-wolframite-gold-bearing topazites and tourmalites occur within the granites mass and wolframite-scheelite-bismuth-bearing greisens at the contact between the granite and the sediments. Bulk sampling and preliminary grab sampling of a number of these bodies indicates that several of the bodies should be tested in a more detailed manner, to determine whether they will bulk at a grade which would permit economic mining of the deposits.
Google map showing geographic bounding box with values North bound -14.0 East bound 133.0 West bound 132.5 South bound -14.5
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Product Type/Sub Type

dataset - GA Publication - Record

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1953

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Record
ore
resource assessment
mineral deposits
geology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-14.0
East bound
133.0
West bound
132.5
South bound
-14.5

Lineage

Legacy product, lineage not available

Digital Transfer Options

onLine

DISTRIBUTION Format

pdf

Distributor

Role
distributor
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Metadata File Identifier

a05f7892-fb87-7506-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

1996-10-30

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays