Brent McInnes

Osmium Isotope Constraints on Ore Metal Recycling in Subduction Zones

Publisher: American Association for the Advancement of Science (AAAS)

Date: 15-10-1999

DOI: 10.1126/SCIENCE.286.5439.512

Abstract: Veined peridotite xenoliths from the mantle beneath the giant Ladolam gold deposit on Lihir Island, Papua New Guinea, are 2 to 800 times more enriched in copper, gold, platinum, and palladium than surrounding depleted arc mantle. Gold ores have osmium isotope compositions similar to those of the underlying subduction-modified mantle peridotite source region, indicating that the primary origin of the metals was the mantle. Because the mantle is relatively depleted in gold, copper, and palladium, tectonic processes that enhance the advective transport and concentration of these fluid soluble metals may be a prerequisite for generating porphyry-epithermal copper-gold deposits.

(U–Th)/He chronology of the Robe River channel iron deposits, Hamersley Province, Western Australia

Publisher: Elsevier BV

Date: 09-2013

DOI: 10.1016/J.CHEMGEO.2013.06.012

Fe sulfide formation due to seawater-gas-sediment interaction in a shallow-water hydrothermal system at Lihir Island, Papua New Guinea

Publisher: Society of Economic Geologists

Date: 04-1999

DOI: 10.2113/GSECONGEO.94.2.281

Hydrous metasomatism of oceanic sub-arc mantle, Lihir, Papua New Guinea Part 2. Trace element characteristics of slab-derived fluids

Publisher: Elsevier BV

Date: 11-2001

DOI: 10.1016/S0024-4937(01)00058-5

Imaging fluid inclusion content using the new CSIRO–GEMOC nuclear microprobe

Publisher: Elsevier BV

Date: 07-2001

DOI: 10.1016/S0168-583X(01)00357-3

Cooling and exhumation of the mid-Jurassic porphyry copper systems in Dexing City, SE China: insights from geo- and thermochronology

Publisher: Springer Science and Business Media LLC

Date: 14-08-2014

DOI: 10.1007/S00126-014-0536-1

Application of X-ray micro-computed tomography in (U–Th)/He thermochronology

Publisher: Elsevier BV

Date: 11-2008

DOI: 10.1016/J.CHEMGEO.2008.08.021

Cenozoic uplift, exhumation and deformation in the north Kuqa Depression, China as constrained by (U–Th)/He thermochronometry

Publisher: Elsevier BV

Date: 09-2014

DOI: 10.1016/J.TECTO.2014.05.021

Thermal history of the giant Qulong Cu–Mo deposit, Gangdese metallogenic belt, Tibet: Constraints on magmatic–hydrothermal evolution and exhumation

Publisher: Elsevier BV

Date: 08-2016

DOI: 10.1016/J.GR.2015.07.005

Application of apatite (U-Th)/He thermochronometry to the determination of the sense and amount of vertical fault displacement at the Chuquicamata porphyry copper deposit, Chile

Publisher: Society of Economic Geologists

Date: 09-1999

DOI: 10.2113/GSECONGEO.94.6.937

Fluorite (U–Th)/He thermochronology: Constraints on the low temperature history of Yucca Mountain, Nevada

Publisher: Elsevier BV

Date: 06-2005

DOI: 10.1016/J.APGEOCHEM.2005.02.008

Novel neuronal and astrocytic mechanisms in thalamocortical loop dynamics.

Publisher: The Royal Society

Date: 29-12-2002

DOI: 10.1098/RSTB.2002.1155

Abstract: In this review, we summarize three sets of findings that have recently been observed in thalamic astrocytes and neurons, and discuss their significance for thalamocortical loop dynamics. (i) A physiologically relevant ‘window’ component of the low–voltage–activated, T–type Ca 2+ current ( I Twindow ) plays an essential part in the slow (less than 1 Hz) sleep oscillation in adult thalamocortical (TC) neurons, indicating that the expression of this fundamental sleep rhythm in these neurons is not a simple reflection of cortical network activity. It is also likely that I Twindow underlies one of the cellular mechanisms enabling TC neurons to produce burst firing in response to novel sensory stimuli. (ii) Both electrophysiological and dye–injection experiments support the existence of gap junction–mediated coupling among young and adult TC neurons. This finding indicates that electrical coupling–mediated synchronization might be implicated in the high and low frequency oscillatory activities expressed by this type of thalamic neuron. (iii) Spontaneous intracellular Ca 2+ ([Ca 2+ ] i ) waves propagating among thalamic astrocytes are able to elicit large and long–lasting N –methyl–D–aspartate–mediated currents in TC neurons. The peculiar developmental profile within the first two postnatal weeks of these astrocytic [Ca 2+ ] i transients and the selective activation of these glutamate receptors point to a role for this astrocyte–to–neuron signalling mechanism in the topographic wiring of the thalamocortical loop. As some of these novel cellular and intracellular properties are not restricted to thalamic astrocytes and neurons, their significance may well apply to (patho)physiological functions of glial and neuronal elements in other brain areas.

In situ calcite U–Pb geochronology of carbonate and clastic sedimentary rocks from the Canning Basin, Western Australia

Publisher: Informa UK Limited

Date: 29-01-2023

DOI: 10.1080/08120099.2023.2161635

Numerical modelling of magmatic-hydrothermal systems constrained by U–Th–Pb–He time-temperature histories

Publisher: Elsevier BV

Date: 04-2009

DOI: 10.1016/J.GEXPLO.2008.11.047

Geological and thermochronological studies of the Dashui gold deposit, West Qinling Orogen, Central China

Publisher: Springer Science and Business Media LLC

Date: 08-2012

DOI: 10.1007/S00126-012-0433-4

Emplacement age and thermal footprint of the diamondiferous Ellendale E9 lamproite pipe, Western Australia

Publisher: Springer Science and Business Media LLC

Date: 14-07-2012

DOI: 10.1007/S00126-012-0430-7

New hydrothermal activity and alkalic volcanism in the backarc Coriolis Troughs, Vanuatu

Publisher: Geological Society of America

Date: 2005

DOI: 10.1130/G20870.1

Hydrous metasomatism of oceanic sub-arc mantle, Lihir, Papua New Guinea: petrology and geochemistry of fluid-metasomatised mantle wedge xenoliths

Publisher: Elsevier BV

Date: 05-2001

DOI: 10.1016/S0012-821X(01)00306-5

Arc lavas on both sides of a trench: Slab window effects at the Solomon Islands triple junction, SW Pacific

Publisher: Elsevier BV

Date: 30-03-2009

DOI: 10.1016/J.EPSL.2009.01.001

Towards a heavy mineral map of the Australian continent: a feasibility study

Publisher: Geoscience Australia

Date: 2020

DOI: 10.11636/RECORD.2020.031

Abstract: Heavy minerals (HMs) are minerals with a specific gravity greater than 2.9 g/cm3. They are commonly highly resistant to physical and chemical weathering, and therefore persist in sediments as lasting indicators of the (former) presence of the rocks they formed in. The presence/absence of certain HMs, their associations with other HMs, their concentration levels, and the geochemical patterns they form in maps or 3D models can be indicative of geological processes that contributed to their formation. Furthermore trace element and isotopic analyses of HMs have been used to vector to mineralisation or constrain timing of geological processes. The positive role of HMs in mineral exploration is well established in other countries, but comparatively little understood in Australia. Here we present the results of a pilot project that was designed to establish, test and assess a workflow to produce a HM map (or atlas of maps) and dataset for Australia. This would represent a critical step in the ability to detect anomalous HM patterns as it would establish the background HM characteristics (i.e., unrelated to mineralisation). Further the extremely rich dataset produced would be a valuable input into any future machine learning/big data-based prospectivity analysis. The pilot project consisted in selecting ten sites from the National Geochemical Survey of Australia (NGSA) and separating and analysing the HM contents from the 75-430 µm grain-size fraction of the top (0-10 cm depth) sediment s les. A workflow was established and tested based on the density separation of the HM-rich phase by combining a shake table and the use of dense liquids. The automated mineralogy quantification was performed on a TESCAN® Integrated Mineral Analyser (TIMA) that identified and mapped thousands of grains in a matter of minutes for each s le. The results indicated that: (1) the NGSA s les are appropriate for HM analysis (2) over 40 HMs were effectively identified and quantified using TIMA automated quantitative mineralogy (3) the resultant HMs’ mineralogy is consistent with the s les’ bulk geochemistry and regional geological setting and (4) the HM makeup of the NGSA s les varied across the country, as shown by the mineral mounts and preliminary maps. Based on these observations, HM mapping of the continent using NGSA s les will likely result in coherent and interpretable geological patterns relating to bedrock lithology, metamorphic grade, degree of alteration and mineralisation. It could assist in geological investigations especially where outcrop is minimal, challenging to correctly attribute due to extensive weathering, or simply difficult to access. It is believed that a continental-scale HM atlas for Australia could assist in derisking mineral exploration and lead to investment, e.g., via tenement uptake, exploration, discovery and ultimately exploitation. As some HMs are hosts for technology critical elements such as rare earth elements, their systematic and internally consistent quantification and mapping could lead to resource discovery essential for a more sustainable, lower-carbon economy.

Re–Os geochronology and isotope systematics of the Tanami, Tennant Creek and Olympic Dam Cu–Au deposits

Publisher: Informa UK Limited

Date: 08-2008

DOI: 10.1080/08120090802097443

Emplacement ages and exhumation rates for intrusion-hosted Cu–Mo–Sb–Au mineral systems at Freegold Mountain (Yukon, Canada): assessment from U–Pb, Ar–Ar, and (U–Th)/He geochronometers

Publisher: Canadian Science Publishing

Date: 05-2012

DOI: 10.1139/E2012-009

Abstract: To decipher the thermal history of mineralized systems across the Freegold Mountain area (Yukon, Canada), a combined geochronology (zircon U–Pb and hornblende, biotite, and whole rock Ar–Ar) and thermochronology (apatite and zircon (U–Th)/He) study was carried out. Previous U–Pb data combined with new U–Pb and Ar–Ar data show that intrusive bodies across the Freegold Mountain were emplaced during two protracted episodes, the first spanning from 109.6 to 98 Ma and the second between 79 and 68 Ma. Overprinting of the first intrusive event by a second magmatic hydrothermal event is suggested by a zircon U–Pb age of 108.7 ± 0.4 Ma for a chlorite-altered dyke and a whole rock Ar–Ar plateau age of 76.25 ± 0.53 Ma. Zircon (U–Th)/He data are between 66 and 89 Ma, whereas apatite (U–Th)/He data are scattered (38.7–109.9 Ma) and bracket the two magmatic emplacement events. Our combined data reveal a complex history of reheating that led to resetting of numerous chronometers. In most of the investigated magmatic hydrothermal systems, early fast cooling from igneous emplacement through hydrothermal alteration (between 900 and 200 °C) was followed by later and slower cooling accompanying post mineralization uplift and erosion (between 200 and 70 °C). Preliminary models indicate intrusive bodies associated with the Stoddart Cu–Mo ± W prospect cooled slowly (23 °C/Ma) compared with the ones spatially associated with the Revenue Au–Cu prospect (43 °C/Ma), and the similarity of the zircon U–Pb and (U–Th)/He ages from Revenue dyke further supports a rapid cooling from 700 to 180 °C. Erosion rates of 0.035–0.045 mm/year are consistent with tectonic quiescence during the Late Tertiary combined with the lack of Pleistocene glaciation in central Yukon. Such low rates of exhumation favour the formation and preservation of supergene mineralization, such as that found north of Freegold Mountain.

A Review of the New Ireland Basin, Papua New Guinea: Architecture, Sediment History and Petroleum Systems

Publisher: Society of Exploration Geophysicists and American Association of Petroleum Geologists

Date: 16-09-2015

DOI: 10.1190/ICE2015-2208601

Application of Thermochronology to Hydrothermal Ore Deposits

Publisher: Mineralogical Society of America

Date: 2005

DOI: 10.2138/RMG.2005.58.18

Seeing is believing: Visualization of He distribution in zircon and implications for thermal history reconstruction on single crystals

Publisher: American Association for the Advancement of Science (AAAS)

Date: 03-02-2017

DOI: 10.1126/SCIADV.1601121

Abstract: Inverse modeling of intracrystal (U-Th)/(Pb-He) abundances in in idual zircons constrains the thermal history of Earth’s crust.

Thermal-tectonic history of the Baogutu porphyry Cu deposit, West Junggar as constrained from zircon U–Pb, biotite Ar/Ar and zircon/apatite (U–Th)/He dating

Publisher: Elsevier BV

Date: 2014

DOI: 10.1016/J.JSEAES.2013.05.026

Petrogenesis and thermal history of the Yulong porphyry copper deposit, Eastern Tibet: insights from U-Pb and U-Th/He dating, and zircon Hf isotope and trace element analysis

Publisher: Springer Science and Business Media LLC

Date: 19-06-2012

DOI: 10.1007/S00710-012-0211-0

The exhumation history of collision-related mineralizing systems in Tibet: Insights from thermal studies of the Sharang and Yaguila deposits, central Lhasa

Publisher: Elsevier BV

Date: 03-2015

DOI: 10.1016/J.OREGEOREV.2014.09.026

Zircon U–Th–Pb–He double dating of the Merlin kimberlite field, Northern Territory, Australia

Publisher: Elsevier BV

Date: 11-2009

DOI: 10.1016/J.LITHOS.2009.05.006

Late Palaeogene emplacement and late Neogene–Quaternary exhumation of the Kuril island-arc root (Kunashir island) constrained by multi-method thermochronometry

Publisher: Elsevier BV

Date: 03-2016

DOI: 10.1016/J.GSF.2015.05.002

Potash-rich Magmatism and Associated Gold-Copper Mineralization in the Yishu Deep Fault Zone and Its Vicinity, Eastern China

Publisher: Wiley

Date: 12-2000

DOI: 10.1111/J.1751-3928.2000.TB00075.X

Detrital zircon (U-Th)/He thermochronometry of the Mesozoic Daba Shan Foreland Basin, central China: Evidence for timing of post-orogenic denudation

Publisher: Elsevier BV

Date: 10-2012

DOI: 10.1016/J.TECTO.2012.08.010

Quantitative, high sensitivity, high resolution, nuclear microprobe imaging of fluids, melts and minerals

Publisher: Elsevier BV

Date: 04-2002

DOI: 10.1016/S0168-583X(01)01003-5

Two subgroups of A-type granites in the coastal area of Zhejiang and Fujian Provinces, SE China: age and geochemical constraints on their petrogenesis

Publisher: Geological Society of America

Date: 2004

DOI: 10.1130/0-8137-2389-2.227

Evaluation of Radioisotope Dating of Carlin-Type Deposits in the Great Basin,Western North America, and Implications for Deposit Genesis

Publisher: Society of Economic Geologists

Date: 04-2003

DOI: 10.2113/GSECONGEO.98.2.235

Numerical modeling of magmatic–hydrothermal systems constrained by U–Th–Pb–He time–temperature histories

Publisher: Elsevier BV

Date: 07-2010

DOI: 10.1016/J.GEXPLO.2009.09.001

An in situ technique for (U–Th–Sm)/He and U–Pb double dating

Publisher: Royal Society of Chemistry (RSC)

Date: 2015

DOI: 10.1039/C5JA00085H

Abstract: New in situ (U–Th–Sm)/He and U–Pb zircon double dating method replicates results obtained using conventional methods at the Ellendale diamond occurrence.

Observations and sampling of an ongoing subsurface eruption of Kavachi volcano, Solomon Islands, May 2000

Publisher: Geological Society of America

Date: 2002

DOI: 10.1130/0091-7613(2002)030<0975:OASOAO>2.0.CO;2

Application of apatite (U-Th)/He thermochronology to the determination of the sense and amount of vertical displacement at the chuquicamata porphyry copper district, chile - A reply

Publisher: Society of Economic Geologists

Date: 08-2001

DOI: 10.2113/GSECONGEO.96.5.1310

COMMENT: Relationship between copper tonnage of Chilean base-metal porphyry deposits and Os isotope ratios

Publisher: Geological Society of America

Date: 2001

DOI: 10.1130/0091-7613(2001)029<0467:RBCTOC>2.0.CO;2

UV-Vis spectrophotometric and XAFS studies of ferric chloride complexes in hyper-saline LiCl solutions at 25-90 degrees C

Publisher: Elsevier BV

Date: 08-2006

DOI: 10.1016/J.CHEMGEO.2006.02.005

University Of Notre Dame/Bradley D. Smith

Location: United States of America

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Commonwealth Scientific And Industrial Research Organisation

Location: No location found

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California Institute Of Technology

Location: United States of America

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Curtin University

Location: Australia

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NASA Goddard Space Flight Center

Location: United States of America

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Commonwealth Scientific And Industrial Research Organisation

Location: Australia

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McMaster University

Location: Canada

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University Of Ottawa

Location: Canada

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Discovery Projects - Grant ID: DP130100517

Start Date: 2013

End Date: 12-2016

Amount: $370,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE190100079

Start Date: 2019

End Date: 12-2020

Amount: $365,380.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100150

Start Date: 2014

End Date: 12-2014

Amount: $700,000.00

Funder: Australian Research Council

Linkage Projects - Grant ID: LP0991834

Start Date: 05-2010

End Date: 12-2013

Amount: $510,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE150100145

Start Date: 2015

End Date: 12-2015

Amount: $170,000.00

Funder: Australian Research Council

Linkage Projects - Grant ID: LP210100173

Start Date: 01-2023

End Date: 01-2026

Amount: $415,676.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100203

Start Date: 2010

End Date: 12-2010

Amount: $700,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100047

Start Date: 10-2011

End Date: 10-2012

Amount: $420,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE170100219

Start Date: 2017

End Date: 12-2017

Amount: $170,000.00

Funder: Australian Research Council