ORCID Profile
0000-0003-0012-0101
Current Organisations
University of Tasmania
,
University of New England
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Publisher: Mineralogical Association of Canada
Date: 11-2017
Publisher: Society of Economic Geologists
Date: 2011
Publisher: Elsevier BV
Date: 08-2016
Publisher: Elsevier BV
Date: 10-2012
Publisher: Geological Society of London
Date: 02-2011
Publisher: Society of Economic Geologists
Date: 07-1999
Publisher: Society of Economic Geologists
Date: 11-2001
Publisher: Society of Economic Geologists
Date: 07-02-2017
Publisher: Pleiades Publishing Ltd
Date: 05-2015
Publisher: Geological Society of America
Date: 2008
DOI: 10.1130/G25001A.1
Publisher: Society of Economic Geologists
Date: 08-2001
Publisher: MDPI AG
Date: 28-02-2019
DOI: 10.3390/MIN9030150
Abstract: In weakly metamorphosed massive sulfide deposits of the Urals (Dergamysh, Yubileynoe, Yaman-Kasy, Molodezhnoe, Valentorskoe, Aleksandrinskoe, Saf’yanovskoe), banded sulfides (ore diagenites) are recognized as the products of seafloor supergene alteration (halmyrolysis) of fine-clastic sulfide sediments and further diagenesis leading to the formation of authigenic mineralization. The ore diagenites are sub ided into pyrrhotite-, chalcopyrite-, bornite-, sphalerite-, barite- and hematite-rich types. The relative contents of sphalerite-, bornite- and barite-rich facies increases in the progression from ultramafic (=Atlantic) to bimodal mafic (=Uralian) and bimodal felsic (=Baymak and Rudny Altay) types of massive sulfide deposits. The ore diagenites have lost primary features within the ore clasts and dominantly exhibit replacement and neo-formed nodular microtextures. The evolution of the mineralogy is dependent on the original primary composition, sizes and proportions of the hydrothermal ore clasts mixed with lithic serpentinite and hyaloclastic volcanic fragments together with carbonaceous and calcareous fragments. Each type of ore diagenite is characterized by specific rare mineral assemblages: Cu–Co–Ni sulfides are common in pyrrhotite-rich diagenites tellurides and selenides in chalcopyrite-rich diagenites minerals of the germanite group and Cu–Ag and Cu–Sn sulfides in bornite-rich diagenites abundant galena and sulfosalts in barite- and sphalerite-rich diagenites and erse tellurides characterize hematite-rich diagenites. Native gold in variable amounts is typical of all types of diagenites.
Publisher: Elsevier BV
Date: 07-2013
Publisher: Society of Economic Geologists
Date: 05-1992
Publisher: Society of Economic Geologists
Date: 12-2009
Publisher: Wiley
Date: 16-01-2018
DOI: 10.1002/GJ.3131
Publisher: MDPI AG
Date: 27-07-2018
DOI: 10.3390/MIN8080321
Abstract: The aim of this paper is the investigation of the role of diagenesis in the transformation of clastic sulfide sediments such as sulfide breccias from the Semenov-3 hydrothermal field (Mid-Atlantic Ridge). The breccias are composed of marcasite–pyrite clasts enclosed in a barite–sulfide–quartz matrix. Primary hydrothermal sulfides occur as colloform, fine-crystalline, porous and radial marcasite–pyrite clasts with inclusions or in idual clasts of chalcopyrite, sphalerite, pyrrhotite, bornite, barite and rock-forming minerals. Diagenetic processes are responsible for the formation of more erse authigenic mineralization including framboidal, ovoidal and nodular pyrite, coarse-crystalline pyrite and marcasite, anhedral and reniform chalcopyrite, inclusions of HgS phase and pyrrhotite–sphalerite–chalcopyrite aggregates in coarse-crystalline pyrite, zoned bornite–chalcopyrite grains, specular and globular hematite, tabular barite and quartz. The early diagenetic ovoid pyrite is enriched in most trace elements in contrast to late diagenetic varieties. Authigenic lower-temperature chalcopyrite is depleted in trace elements relative to high-temperature hydrothermal ones. Trace elements have different modes of occurrence: Se is hosted in pyrite and chalcopyrite Tl is related to sphalerite and galena nanoinclusions Au is associated with galena As in pyrite is lattice-bound, whereas in chalcopyrite it is related to tetrahedrite–tennantite nanoinclusions Cd in pyrite is hosted in sphalerite inclusions Cd in chalcopyrite forms its own mineral Co and Ni are hosted in chalcopyrite.
Publisher: Elsevier BV
Date: 07-1998
Publisher: Informa UK Limited
Date: 06-2012
Publisher: Society of Economic Geologists
Date: 23-01-2015
Publisher: Society of Economic Geologists
Date: 12-2004
Publisher: Pleiades Publishing Ltd
Date: 05-2012
Publisher: Society of Economic Geologists
Date: 09-2006
Publisher: Geological Society of America
Date: 09-06-2020
DOI: 10.1130/GEOL.S.12456332.V1
Abstract: Additional information on seawater-pyrite link and method. br
Publisher: Informa UK Limited
Date: 07-2007
Publisher: Informa UK Limited
Date: 12-1995
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 05-2008
Publisher: Elsevier BV
Date: 05-2017
Publisher: Society of Economic Geologists
Date: 07-1988
Publisher: Wiley
Date: 19-02-2017
DOI: 10.1111/IAR.12177
Publisher: Elsevier BV
Date: 07-2014
Publisher: Geological Society of America
Date: 12-2009
DOI: 10.1130/G30380A.1
Publisher: EDP Sciences
Date: 2012
Publisher: Elsevier BV
Date: 10-2011
Publisher: Mineralogical Society of America
Date: 04-2014
DOI: 10.2138/AM.2014.4545
Publisher: Elsevier BV
Date: 03-2017
Publisher: Wiley
Date: 11-2001
Publisher: Society of Economic Geologists
Date: 09-2006
Publisher: Springer Science and Business Media LLC
Date: 22-11-2012
Publisher: Elsevier BV
Date: 09-1994
Publisher: Elsevier BV
Date: 02-2014
Publisher: Elsevier BV
Date: 11-2017
Publisher: Society of Economic Geologists
Date: 05-2011
Publisher: Elsevier BV
Date: 05-2003
Publisher: Elsevier BV
Date: 2019
Publisher: Wiley
Date: 08-2004
Publisher: Society of Economic Geologists
Date: 05-1992
Publisher: Elsevier BV
Date: 08-2016
Publisher: Springer Science and Business Media LLC
Date: 20-01-2018
Publisher: Elsevier BV
Date: 07-2016
Publisher: Elsevier BV
Date: 05-1988
Publisher: Elsevier BV
Date: 2015
Publisher: Elsevier BV
Date: 09-2015
Publisher: Elsevier BV
Date: 12-2015
Publisher: Elsevier BV
Date: 12-2016
Publisher: Elsevier BV
Date: 03-2017
Publisher: Society of Economic Geologists
Date: 17-06-2016
Publisher: Elsevier BV
Date: 03-1989
Publisher: The Scientific and Technological Research Council of Turkey (TUBITAK-ULAKBIM) - DIGITAL COMMONS JOURNALS
Date: 2017
DOI: 10.3906/YER-1510-17
Publisher: Society of Economic Geologists
Date: 13-08-2013
Publisher: Wiley
Date: 06-2004
Publisher: Pleiades Publishing Ltd
Date: 07-2017
Publisher: Society of Economic Geologists
Date: 04-1975
Publisher: Elsevier BV
Date: 04-2018
Publisher: Geological Society of London
Date: 2002
Publisher: Society of Economic Geologists
Date: 2000
Publisher: Elsevier BV
Date: 04-2017
Publisher: Elsevier BV
Date: 12-2014
Publisher: Informa UK Limited
Date: 10-05-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4JA00011K
Publisher: Springer Science and Business Media LLC
Date: 07-1994
DOI: 10.1007/BF00206872
Publisher: Elsevier BV
Date: 10-2004
Publisher: Society of Economic Geologists
Date: 07-1977
Publisher: Society of Economic Geologists
Date: 08-2009
Publisher: Society of Economic Geologists
Date: 05-2005
Publisher: Society of Economic Geologists
Date: 08-2001
Publisher: Mineralogical Society of America
Date: 23-12-2015
DOI: 10.2138/AM-2015-4648
Publisher: Elsevier BV
Date: 05-2003
Publisher: Society of Economic Geologists
Date: 05-1992
Publisher: Springer Science and Business Media LLC
Date: 03-02-2005
Publisher: Springer Science and Business Media LLC
Date: 13-03-2018
DOI: 10.1038/S41598-018-22695-X
Abstract: The period 1800 to 800 Ma (“Boring Billion”) is believed to mark a delay in the evolution of complex life, primarily due to low levels of oxygen in the atmosphere. Earlier studies highlight the remarkably flat C, Cr isotopes and low trace element trends during the so-called stasis, caused by prolonged nutrient, climatic, atmospheric and tectonic stability. In contrast, we suggest a first-order variability of bio-essential trace element availability in the oceans by combining systematic s ling of the Proterozoic rock record with sensitive geochemical analyses of marine pyrite by LA-ICP-MS technique. We also recall that several critical biological evolutionary events, such as the appearance of eukaryotes, origin of multicellularity & sexual reproduction, and the first major ersification of eukaryotes (crown group) occurred during this period. Therefore, it appears possible that the period of low nutrient trace elements (1800–1400 Ma) caused evolutionary pressures which became an essential trigger for promoting biological innovations in the eukaryotic domain. Later periods of stress-free conditions, with relatively high nutrient trace element concentration, facilitated ersification. We propose that the “Boring Billion” was a period of sequential stepwise evolution and ersification of complex eukaryotes, triggering evolutionary pathways that made possible the later rise of micro-metazoans and their macroscopic counterparts.
Publisher: Society of Economic Geologists
Date: 10-1988
Publisher: Society of Economic Geologists
Date: 13-07-2015
Publisher: Geological Society of London
Date: 03-03-2014
DOI: 10.1144/SP393.10
Publisher: Society of Economic Geologists
Date: 11-1980
Publisher: Elsevier BV
Date: 06-2013
Publisher: Springer Science and Business Media LLC
Date: 07-1994
DOI: 10.1007/BF00206864
Publisher: Elsevier BV
Date: 2015
Publisher: Elsevier BV
Date: 10-2015
Publisher: Society of Economic Geologists
Date: 04-1987
Publisher: Elsevier BV
Date: 06-2018
Publisher: Springer Science and Business Media LLC
Date: 03-2004
Publisher: Elsevier BV
Date: 06-2009
Publisher: Society of Economic Geologists
Date: 05-1992
Publisher: Elsevier BV
Date: 04-1989
Publisher: American Journal of Science (AJS)
Date: 02-2006
Publisher: Elsevier BV
Date: 03-2014
Publisher: Elsevier BV
Date: 03-2014
Publisher: Informa UK Limited
Date: 28-01-2016
Publisher: Springer Science and Business Media LLC
Date: 05-09-2016
Publisher: Pleiades Publishing Ltd
Date: 05-2017
Publisher: Society of Economic Geologists
Date: 08-2001
Publisher: Geological Society of America
Date: 09-06-2020
Abstract: Additional information on seawater-pyrite link and method. br
Publisher: Elsevier BV
Date: 2019
Publisher: Society of Economic Geologists
Date: 22-05-2015
Publisher: Society of Economic Geologists
Date: 12-1975
Publisher: Society of Economic Geologists
Date: 05-1992
Publisher: Society of Economic Geologists
Date: 07-10-2016
Publisher: Pleiades Publishing Ltd
Date: 03-2017
Publisher: Elsevier BV
Date: 09-2012
Publisher: Springer Science and Business Media LLC
Date: 12-03-2019
Publisher: Mineralogical Association of Canada
Date: 05-2015
Publisher: Springer Science and Business Media LLC
Date: 13-08-2004
Publisher: Society of Economic Geologists
Date: 12-1998
Publisher: Society of Economic Geologists
Date: 12-1976
Publisher: Springer Science and Business Media LLC
Date: 17-05-2017
Publisher: Springer Science and Business Media LLC
Date: 14-07-2017
Publisher: Elsevier BV
Date: 03-2003
Publisher: Wiley
Date: 22-12-2015
DOI: 10.1002/JCLP.22250
Publisher: Springer Science and Business Media LLC
Date: 06-1990
DOI: 10.1007/BF01830624
Publisher: Society of Economic Geologists
Date: 05-1992
Publisher: Society of Economic Geologists
Date: 08-2001
Publisher: Society of Economic Geologists
Date: 11-2007
Publisher: Informa UK Limited
Date: 07-2013
Publisher: Elsevier BV
Date: 02-2000
Publisher: Elsevier BV
Date: 05-2009
Publisher: Pleiades Publishing Ltd
Date: 03-2017
Start Date: 2003
End Date: 2003
Funder: Australian Research Council
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Funder: Australian Research Council
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Funder: Australian Research Council
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End Date: 2009
Funder: Australian Research Council
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End Date: 2016
Funder: Australian Research Council
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End Date: 2007
Funder: Australian Research Council
View Funded ActivityStart Date: 2005
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Funder: Australian Research Council
View Funded ActivityStart Date: 2013
End Date: 2018
Funder: Australian Research Council
View Funded ActivityStart Date: 2015
End Date: 2017
Funder: Australian Research Council
View Funded ActivityStart Date: 2005
End Date: 2013
Funder: Australian Research Council
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