The tectonics and mineral systems of Proterozoic Western Australia: Relationships with supercontinents and global secular change

A. R.A. Aitken, S. A. Occhipinti, M. D. Lindsay, A. Joly, H. M. Howard, S. P. Johnson, J. A. Hollis, C. V. Spaggiari, I. M. Tyler, T. C. McCuaig, M. C. Dentith

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The cratonisation of Western Australia during the Proterozoic overlapped with several key events in the evolution of Earth. These include global oxidation events and glaciations, as well as the assembly, accretionary growth, and breakup of the supercontinents Columbia and Rodinia, culminating in the assembly of Gondwana. Globally, Proterozoic mineral systems evolved in response to the coupled evolution of the atmosphere, hydrosphere, biosphere and lithosphere. Consequently, mineral deposits form preferentially in certain times, but they also require a favourable tectonic setting. For Western Australia a distinct plate-margin mineralisation trend is associated with Columbia, whereas an intraplate mineralisation trend is associated with Rodinia and Gondwana, each with associated deposit types. We compare the current Proterozoic record of ore deposits in Western Australia to the estimated likelihood of ore-deposit formation. Overall likelihood is estimated with a simple matrix-based approach that considers two components: The “global secular likelihood” and the “tectonic setting likelihood”. This comparative study shows that at least for the studied ore-deposit types, deposits within Western Australia developed at times, and in tectonic settings compatible with global databases. Nevertheless, several deposit types are either absent or poorly-represented relative to the overall likelihood models. Insufficient exploration may partly explain this, but a genuine lack of deposits is also suggested for some deposit types. This may relate either to systemic inadequacies that inhibited ore-deposit formation, or to poor preservation. The systematic understanding on the record of Western Australia helps to understand mineralisation processes within Western Australia and its past connections in Columbia, Rodinia and Gondwana and aids to identify regions of high exploration potential.

Original languageEnglish
Pages (from-to)431-439
Number of pages9
JournalGeoscience Frontiers
Volume9
Issue number2
DOIs
Publication statusPublished - 1 Mar 2018

Fingerprint

supercontinent
ore deposit
Rodinia
Proterozoic
tectonic setting
Gondwana
tectonics
mineral
mineralization
hydrosphere
mineral deposit
biosphere
glaciation
lithosphere
comparative study
oxidation
matrix
atmosphere
trend

Cite this

@article{c568c6a55c4b496a88e64b0d68aa5b43,
title = "The tectonics and mineral systems of Proterozoic Western Australia: Relationships with supercontinents and global secular change",
abstract = "The cratonisation of Western Australia during the Proterozoic overlapped with several key events in the evolution of Earth. These include global oxidation events and glaciations, as well as the assembly, accretionary growth, and breakup of the supercontinents Columbia and Rodinia, culminating in the assembly of Gondwana. Globally, Proterozoic mineral systems evolved in response to the coupled evolution of the atmosphere, hydrosphere, biosphere and lithosphere. Consequently, mineral deposits form preferentially in certain times, but they also require a favourable tectonic setting. For Western Australia a distinct plate-margin mineralisation trend is associated with Columbia, whereas an intraplate mineralisation trend is associated with Rodinia and Gondwana, each with associated deposit types. We compare the current Proterozoic record of ore deposits in Western Australia to the estimated likelihood of ore-deposit formation. Overall likelihood is estimated with a simple matrix-based approach that considers two components: The “global secular likelihood” and the “tectonic setting likelihood”. This comparative study shows that at least for the studied ore-deposit types, deposits within Western Australia developed at times, and in tectonic settings compatible with global databases. Nevertheless, several deposit types are either absent or poorly-represented relative to the overall likelihood models. Insufficient exploration may partly explain this, but a genuine lack of deposits is also suggested for some deposit types. This may relate either to systemic inadequacies that inhibited ore-deposit formation, or to poor preservation. The systematic understanding on the record of Western Australia helps to understand mineralisation processes within Western Australia and its past connections in Columbia, Rodinia and Gondwana and aids to identify regions of high exploration potential.",
keywords = "Australia, Mineral systems, Tectonics",
author = "Aitken, {A. R.A.} and Occhipinti, {S. A.} and Lindsay, {M. D.} and A. Joly and Howard, {H. M.} and Johnson, {S. P.} and Hollis, {J. A.} and Spaggiari, {C. V.} and Tyler, {I. M.} and McCuaig, {T. C.} and Dentith, {M. C.}",
year = "2018",
month = "3",
day = "1",
doi = "10.1016/j.gsf.2017.05.008",
language = "English",
volume = "9",
pages = "431--439",
journal = "Geoscience Frontiers",
issn = "1674-9871",
publisher = "CHINA UNIV GEOSCIENCES, BEIJING",
number = "2",

}

The tectonics and mineral systems of Proterozoic Western Australia : Relationships with supercontinents and global secular change. / Aitken, A. R.A.; Occhipinti, S. A.; Lindsay, M. D.; Joly, A.; Howard, H. M.; Johnson, S. P.; Hollis, J. A.; Spaggiari, C. V.; Tyler, I. M.; McCuaig, T. C.; Dentith, M. C.

In: Geoscience Frontiers, Vol. 9, No. 2, 01.03.2018, p. 431-439.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The tectonics and mineral systems of Proterozoic Western Australia

T2 - Relationships with supercontinents and global secular change

AU - Aitken, A. R.A.

AU - Occhipinti, S. A.

AU - Lindsay, M. D.

AU - Joly, A.

AU - Howard, H. M.

AU - Johnson, S. P.

AU - Hollis, J. A.

AU - Spaggiari, C. V.

AU - Tyler, I. M.

AU - McCuaig, T. C.

AU - Dentith, M. C.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - The cratonisation of Western Australia during the Proterozoic overlapped with several key events in the evolution of Earth. These include global oxidation events and glaciations, as well as the assembly, accretionary growth, and breakup of the supercontinents Columbia and Rodinia, culminating in the assembly of Gondwana. Globally, Proterozoic mineral systems evolved in response to the coupled evolution of the atmosphere, hydrosphere, biosphere and lithosphere. Consequently, mineral deposits form preferentially in certain times, but they also require a favourable tectonic setting. For Western Australia a distinct plate-margin mineralisation trend is associated with Columbia, whereas an intraplate mineralisation trend is associated with Rodinia and Gondwana, each with associated deposit types. We compare the current Proterozoic record of ore deposits in Western Australia to the estimated likelihood of ore-deposit formation. Overall likelihood is estimated with a simple matrix-based approach that considers two components: The “global secular likelihood” and the “tectonic setting likelihood”. This comparative study shows that at least for the studied ore-deposit types, deposits within Western Australia developed at times, and in tectonic settings compatible with global databases. Nevertheless, several deposit types are either absent or poorly-represented relative to the overall likelihood models. Insufficient exploration may partly explain this, but a genuine lack of deposits is also suggested for some deposit types. This may relate either to systemic inadequacies that inhibited ore-deposit formation, or to poor preservation. The systematic understanding on the record of Western Australia helps to understand mineralisation processes within Western Australia and its past connections in Columbia, Rodinia and Gondwana and aids to identify regions of high exploration potential.

AB - The cratonisation of Western Australia during the Proterozoic overlapped with several key events in the evolution of Earth. These include global oxidation events and glaciations, as well as the assembly, accretionary growth, and breakup of the supercontinents Columbia and Rodinia, culminating in the assembly of Gondwana. Globally, Proterozoic mineral systems evolved in response to the coupled evolution of the atmosphere, hydrosphere, biosphere and lithosphere. Consequently, mineral deposits form preferentially in certain times, but they also require a favourable tectonic setting. For Western Australia a distinct plate-margin mineralisation trend is associated with Columbia, whereas an intraplate mineralisation trend is associated with Rodinia and Gondwana, each with associated deposit types. We compare the current Proterozoic record of ore deposits in Western Australia to the estimated likelihood of ore-deposit formation. Overall likelihood is estimated with a simple matrix-based approach that considers two components: The “global secular likelihood” and the “tectonic setting likelihood”. This comparative study shows that at least for the studied ore-deposit types, deposits within Western Australia developed at times, and in tectonic settings compatible with global databases. Nevertheless, several deposit types are either absent or poorly-represented relative to the overall likelihood models. Insufficient exploration may partly explain this, but a genuine lack of deposits is also suggested for some deposit types. This may relate either to systemic inadequacies that inhibited ore-deposit formation, or to poor preservation. The systematic understanding on the record of Western Australia helps to understand mineralisation processes within Western Australia and its past connections in Columbia, Rodinia and Gondwana and aids to identify regions of high exploration potential.

KW - Australia

KW - Mineral systems

KW - Tectonics

UR - http://www.scopus.com/inward/record.url?scp=85026539960&partnerID=8YFLogxK

U2 - 10.1016/j.gsf.2017.05.008

DO - 10.1016/j.gsf.2017.05.008

M3 - Article

VL - 9

SP - 431

EP - 439

JO - Geoscience Frontiers

JF - Geoscience Frontiers

SN - 1674-9871

IS - 2

ER -