Crystal LaFlamme
University of Western Australia
26Publications
8H-index
123Citations
Publications 26
Newest
Published on Mar 1, 2018in Precambrian Research 3.91
Hugo K.H. Olierook7
Estimated H-index: 7
(Curtin University),
Stephen Sheppard16
Estimated H-index: 16
(Curtin University)
+ 15 AuthorsFranco Pirajno46
Estimated H-index: 46
(University of Western Australia)
Abstract Extensional episodes in Precambrian orogens are often difficult to decipher because of subsequent orogenesis and intracontinental reworking. Here, we use geochemical and geochronological constraints of a suite of preserved mafic–ultramafic rocks in the Paleoproterozoic Capricorn Orogen of Western Australia to reveal ophiolites, continental ribbons and aborted rifts. The Capricorn Orogen separates the Archean Yilgarn and Pilbara cratons and includes mafic–ultramafic rocks of the fault-bo...
3 Citations Source Cite
Published on Jun 1, 2018in Precambrian Research 3.91
Nicolas Thébaud11
Estimated H-index: 11
(University of Western Australia),
Dennis Sugiono2
Estimated H-index: 2
(University of Western Australia)
+ 6 AuthorsMarco L. Fiorentini21
Estimated H-index: 21
(University of Western Australia)
Abstract The Archean orogenic gold deposits exhibits common characteristics including coeval emplacement age often proposed to be associated with a single late tectonic gold mineralisation event. Although valid for a large majority of deposits in the Yilgarn Craton, this model does not account for certain atypical gold deposits. In the world-class Agnew District (Yilgarn Craton, Western Australia) structural and paragenetic relationships, combined with a compilation of geochronology and multiple...
3 Citations Source Cite
Published on Oct 1, 2018in Precambrian Research 3.91
Stefano Caruso5
Estimated H-index: 5
(Macquarie University),
Marco L. Fiorentini (Macquarie University)+ 4 AuthorsDany Savard8
Estimated H-index: 8
(Université du Québec à Chicoutimi)
Abstract The Nimbus Ag-Zn-(Au) volcanic-hosted massive sulfide (VHMS) deposit represents an exceptional orebody in the Yilgarn Craton of Western Australia. It is located in a zone of juvenile crust running N-S through the Eastern Goldfields Superterrane. However, unlike most other VHMS occurrences associated with the 2690–2680 Ma rift sequence (Teutonic Bore, Jaguar, Bentley, Erayinia), it is hosted by the ca. 2705 Ma plume-related stratigraphy, which is more typically associated with komatiite-...
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Published on Aug 1, 2018in Geochemistry Geophysics Geosystems 2.98
Crystal LaFlamme8
Estimated H-index: 8
(Laval University),
Steven P. Hollis7
Estimated H-index: 7
(University College Dublin)
+ 1 AuthorsMarco L. Fiorentini21
Estimated H-index: 21
(University of Western Australia)
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Published on Feb 1, 2018in Geochimica et Cosmochimica Acta 4.69
Crystal LaFlamme8
Estimated H-index: 8
(University of Western Australia),
Dennis Sugiono2
Estimated H-index: 2
(University of Western Australia)
+ 6 AuthorsLaure Martin13
Estimated H-index: 13
(University of Western Australia)
The evolution of a gold-bearing hydrothermal fluid from its source to the locus of gold deposition is complex as it experiences rapid changes in thermochemical conditions during ascent through the crust. Although it is well established that orogenic gold deposits are generated during time periods of abundant crustal growth and/or reworking, the source of fluid and the thermochemical processes that control gold precipitation remain poorly understood. In situ analyses of multiple sulfur isotopes o...
9 Citations Source Cite
Published on Dec 1, 2018in Nature Communications 12.35
Crystal LaFlamme8
Estimated H-index: 8
(Laval University),
Marco L. Fiorentini21
Estimated H-index: 21
(University of Western Australia)
+ 1 AuthorsThi Hao Bui9
Estimated H-index: 9
(McGill University)
The sulfur cycle across the lithosphere and the role of this volatile element in the metasomatism of the mantle at ancient cratonic boundaries are poorly constrained. We address these knowledge gaps by tracking the journey of sulfur in the assembly of a Proterozoic supercontinent using mass independent isotope fractionation (MIF-S) as an indelible tracer. MIF-S is a signature that was imparted to supracrustal sulfur reservoirs before the ~2.4 Ga Great Oxidation Event. The spatial representation ...
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Published on Feb 1, 2018in Geochimica et Cosmochimica Acta 4.69
Marco L. Fiorentini14
Estimated H-index: 14
(University of Western Australia),
Crystal LaFlamme8
Estimated H-index: 8
(University of Western Australia)
+ 5 AuthorsThi Hao Bui9
Estimated H-index: 9
(McGill University)
Abstract Mafic and ultramafic magmas that intrude into the lower crust can preserve evidence for metal and sulfur transfer from the lithospheric mantle into the lower continental crust. Here we focus on a series of ultramafic, alkaline pipes in the Ivrea Zone (NW Italy), which exposes deeply buried (6–11 kbar), migmatitic metasedimentary rocks intruded by voluminous basaltic magmas of the Mafic Complex, a major crustal underplating event precisely dated via U/Pb CA-IDTIMS on zircon at 286.8 ± 0....
8 Citations Source Cite
Published on Sep 18, 2018in Mineralium Deposita 3.37
Marcelo Godefroy-Rodríguez1
Estimated H-index: 1
(University of Western Australia),
Steffen Hagemann23
Estimated H-index: 23
(University of Western Australia)
+ 1 AuthorsMarco L. Fiorentini21
Estimated H-index: 21
(University of Western Australia)
The Golden Mile and Mount Charlotte deposits in the Kalgoorlie Terrane, Western Australia, display three main mineralization styles: Fimiston, comprised of interconnected shear zones associated with ankerite-pyrite ± hematite- ± magnetite-gold-telluride alteration; Oroya, made up of breccia bodies with V-muscovite-ankerite-pyrite ± pyrrhotite-gold-telluride alteration; and Mount Charlotte, which consists of vein arrays with symmetrical ankerite-sericite-albite-pyrite ± pyrrhotite ± gold alterati...
1 Citations Source Cite
Published on Jun 1, 2018in Gondwana Research 5.66
Crystal LaFlamme8
Estimated H-index: 8
(University of Western Australia),
John Jamieson9
Estimated H-index: 9
(Memorial University of Newfoundland)
+ 3 AuthorsVikraman Selvaraja6
Estimated H-index: 6
(University of Western Australia)
Abstract As sulfur is the primary complexing ligand for gold transport in aqueous fluids, recent work has demonstrated that the Archean systems can preserve mass independent fractionation of sulfur (MIF-S) to yield near-zero values (Δ 33 S 1 = 0 ± 0.5‰). In such cases, interpretation of the geological significance of such isotopic signatures may be compromised as it is known that mass dependent fractionation of sulfur (MDF-S) can yield small Δ 33 S values (herein as Δ 33 S B ) often owing to geo...
5 Citations Source Cite
Published on Dec 1, 2018in Mineralium Deposita 3.37
Andrea Agangi4
Estimated H-index: 4
(Curtin University),
Steven M. Reddy29
Estimated H-index: 29
(Curtin University)
+ 8 AuthorsYutaro Takaya3
Estimated H-index: 3
(Waseda University)
The Proterozoic Bryah and Yerrida basins of Western Australia contain important base and precious metal deposits. Here we present microtextural data, trace element and S isotope analyses of massive sulphide mineralisation hosted in Palaeoproterozoic subvolcanic rocks (dolerite) recently discovered at Red Bore. The small-scale high-grade mineralisation, which extends from the sub-surface to at least 95 m down-hole, is dominated by massive chalcopyrite and contains minor pyrite and Bi-Te-(Se) phas...
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