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Identification of a new ca. 1660 Ma Au-Cu-Bi metallogenic event at Tennant Creek

High-grade gold (Au), copper (Cu) and bismuth (Bi) ores in the Tennant Creek goldfield have been mined from hydrothermal magnetite and/or hematite-rich ironstone bodies. Less well known is a style of Au-Cu-Bi mineralisation hosted by quartz vein systems within shear zones outside ironstones. Sensitive High Resolution Ion Micro Probe (SHRIMP) U-Pb-Th analyses of hydrothermal monazite [(LREE)PO4] associated with this mineralisation style at the Orlando East Au-Cu-Bi deposit and Navigator 6 Au prospect yield ages of 1659 ± 13 Ma and 1659 ± 15 Ma, respectively. These ages are nearly 200 million years younger than the age established from ironstone-hosted ores in the district. This new result widens the exploration ‘search space’ for gold into rock formations previously regarded as too young to host this style of mineralisation.


<b>Citation:</b> Skirrow, R.G., Cross, A.J., Magee, C.W., Lecomte, A., and Mercadier, J., 2020. Identification of a new ca. 1660 Ma Au-Cu-Bi metallogenic event at Tennant Creek. In: Czarnota, K., Roach, I., Abbott, S., Haynes, M., Kositcin, N., Ray, A. and Slatter, E. (eds.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, 1–4.

Simple

Identification info

Date (Creation)
2020-06-26
Date (Publication)
2020-06-26T07:08:04
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/133170

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.11636/133170

Cited responsible party
Role Organisation / Individual Name Details
Author

Skirrow, R.G.

Author

Cross, A.J.

Author

Magee, C.

Author

Lecomte, A.

Author

Mercadier, J.

Purpose

EFTF Abstract

Status
Completed
Point of contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice
Point of contact

Cross, A.J.

Resource provider

Minerals, Energy and Groundwater Division

Spatial representation type
Topic category
  • Geoscientific information

Extent

Extent

N
S
E
W


Maintenance and update frequency
As needed

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

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCES

Process
  • SHRIMP U–Pb

Theme
  • Geochronology

Keywords
  • Monazite

Keywords
  • Hydrothermal monazite

Place
  • Tennant Creek

Keywords
  • Warramunga Province

Keywords
  • Mineral Systems

Keywords
  • Exploring for the Future

Keywords
  • EftF

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

Extended Abstract for download (pdf) [2.1 MB]

Extended Abstract for download (pdf) [2.1 MB]

Distribution format
  • pdf

Resource lineage

Statement

This study was completed under the Exploring for the Future initiative, as part of the East Tennant project. Samples were collected from legacy mineral exploration drill cores: Navigator 6 Hole 2, Orlando East H201 and Orlando East H208. This abstract is a summary of that fully reported in: Skirrow R. G., Cross A. J., Lecomte A. & Mercadier J., 2019. A shear-hosted Au-Cu-Bi metallogenic event at ~1660 Ma in the Tennant Creek goldfield (northern Australia) defined by in-situ monazite U-Pb-Th dating. Precambrian Research 332:105402..

Metadata constraints

Title

Australian Government Security Classification System

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

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

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/52e37ce7-d868-491b-9f3b-11888f59dd9c

Title

GeoNetwork UUID

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

Commonwealth of Australia (Geoscience Australia)

Voice
Point of contact

Cross, A.J.

Type of resource

Resource scope
Document
Name

GA publication: Extended Abstract

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/133170

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/5167d912-6784-4371-9938-3931e84ca6f1

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/52e37ce7-d868-491b-9f3b-11888f59dd9c

Metadata linkage

https://ecat.ga.gov.au:80/geonetwork/srv/eng/catalog.search#/metadata/52e37ce7-d868-491b-9f3b-11888f59dd9c

Date info (Creation)
2019-04-08T01:55:29
Date info (Revision)
2019-04-08T01:55:29

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


Keywords

EftF Exploring for the Future Geochronology Hydrothermal monazite Mineral Systems Monazite SHRIMP U–Pb Warramunga Province
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES

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