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Metasomatic history and origin of uranium mineralization at Mary Kathleen, northwest Queensland

The Mary Kathleen uranium deposit in northwest Queensland is contained in west-dipping middle Proterozoic calcareous, dolomitic and alkali-rich metasediments of the Corella Formation, which are metamorphosed to hornblende hornfels grade by the Burstall Granite, and are also intruded by a swarm of rhyolite and microgranite dykes associated with this granite. An early, higher temperature metasomatic event has formed K feldspar-rich and scapolite-pyroxene bands from the original metasediments; a later lower temperature metasomatic event has resulted in extensive garnetization and skarn replacement of earlier formed rocks, and uraninite-allanite mineralization. Fluids associated with this second event appear to be enriched in Na, Cl, H2O, O, U and rare earths, and are spatially and probably genetically related to the rhyolite dyke swarm. This is supported by the high uranium content of the dykes (12 ppm average) compared to that in Burstall Granite (7 ppm), metasediments (3.5 ppm), quartzite (1 ppm) and basic rocks (0.7 ppm). Uranium-rich fluids moved westwards from the dykes, following decreasing temperature gradients. They were impeded in most places by a chemically inert layer of quartzite, but breached this barrier in at least two places and intersected a sequence containing permeable lenses of conglomerate, within which the broadly stratabound orebody was deposited. Similar orebodies could be expected in the vicinity of other permeable zones stratigraphically above quartzite and adjacent to fractures and acid dykes, but such sites appear to have been removed by faulting and erosion. However, fractured areas of the quartzite hanging wall (i.e. the eastern side of the quartzite), in the vicinity of rhyolite dykes, could also be sites of economic uranium mineralization at depth.

Simple

Identification info

Date (Publication)
1977-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/80921

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Bureau of Mineral Resources, Geology and Geophysics

Canberra
Author

Derrick, G.M.

1
Name

BMR Journal of Australian Geology and Geophysics

Issue identification

2:2:123-130

Point of contact
Role Organisation / Individual Name Details
Custodian

Corp

Owner

Commonwealth of Australia (Geoscience Australia)

Custodian

Commonwealth of Australia (Geoscience Australia)

Voice
Topic category
  • Geoscientific information

Extent

N
S
E
W


Maintenance and update frequency
Unknown

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords
  • GA Publication

  • Journal

Keywords
  • QLD

Australian and New Zealand Standard Research Classification (ANZSRC)
  • Earth Sciences

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

Voice
OnLine resource

Journal article (pdf)

Journal article (pdf)

Distribution format
  • pdf

Resource lineage

Statement

Unknown

Hierarchy level
Non geographic dataset
Other

GA Publication

Description

Source data not available.

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/fae9173a-6f76-71e4-e044-00144fdd4fa6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice

Type of resource

Resource scope
Document
Name

AGSO BMR Journal

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/80921

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fae9173a-6f76-71e4-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:10:21
Date info (Creation)
2014-06-03T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W



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