Abstract

Dating of granites from the Telfer Region of the Paterson Province shows that felsic magmatism took place between ca. 645 Ma and ca. 605 Ma, with clusters at ca. 645, and ca. 630 and a single granite at 605 Ma (the O'Callaghans Granite). This magmatism is interpreted to be a result of deformation and crustal thickening associated with the Miles Orogeny, the first major compressional deformation to affect the Neoproterozoic sedimentary rocks of the Yeneena Basin. Dating of monazite and xenotime from Au-bearing veins at the Telfer Mine show that early concordant vein mineralisation took place at 652 ± 7 Ma, while a late-stage discordant vein yielded an age of 645 ± 7 Ma. These dates indicate that mineralisation took place over a relatively restricted period of time, at a similar time to the emplacement of the earliest granites of the Miles Orogeny, and was apparently unrelated to magmatism at ca. 630 Ma and ca. 605 Ma. Although there is a close temporal relationship between the early granites and Au mineralisation, the lack of a close spatial association suggests that it is possible that granite emplacement was not directly involved in the mineralising system, but was instead a separate consequence of deformation associated with the Miles Orogeny. If this was the case, then other parts of the Yeneena Basin affected by the Miles Orogeny, but not intruded by granites, could be prospective for lode-Au mineralisation.
Google map showing geographic bounding box with values North bound -20.5 East bound 123.33 West bound 121.25 South bound -23.17
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Product Type/Sub Type

dataset - GA Publication - Professional Opinion

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2010

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Professional Opinion
metallogenesis
geochronology
economic geology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-20.5
East bound
123.33
West bound
121.25
South bound
-23.17

Lineage

Unknown

Digital Transfer Options

hardcopy

DISTRIBUTION Format

jpg
pdf

Distributor

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

Metadata File Identifier

a05f7892-efb6-7506-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

2010-02-02

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