A5051411866- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Elemental Analysis
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Mineralogy and Gemology Studies
- Astro and Planetary Science
- Geological formations and processes
- Geomagnetism and Paleomagnetism Studies
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Radioactive element chemistry and processing
- Geochemistry and Geochronology of Asian Mineral Deposits
- Geological and Geophysical Studies Worldwide
- Geological Modeling and Analysis
- Educator Training and Historical Pedagogy
- Neuroscience and Music Perception
- Marine and environmental studies
- Geophysical and Geoelectrical Methods
- Metal Extraction and Bioleaching
- Isotope Analysis in Ecology
- Diverse Music Education Insights
The University of Western Australia
2015-2024
ARC Centre of Excellence for Core to Crust Fluid Systems
2013-2024
James Cook University
2010-2021
Target (United States)
2015-2020
University of Newcastle Australia
2020
Google (United States)
2018
Australian Research Council
2013-2015
University of Bristol
1969-2008
The University of Melbourne
2007
Swedish Museum of Natural History
2007
Granitic plutonism is the principal agent of crustal differentiation, but linking granite emplacement to crust formation requires knowledge magmatic evolution, which notoriously difficult reconstruct from bulk rock compositions. We unlocked plutonic archive through hafnium (Hf) and oxygen (O) isotope analysis zoned zircon crystals classic hornblende-bearing (I-type) granites eastern Australia. This type forms by reworking sedimentary materials mantle-like magmas instead remelting ancient...
Abstract: The continental crust is the archive of geological history Earth. Only 7% older than 2.5 Ga, and yet significantly more was generated before Ga subsequently. Zircons offer robust records magmatic crust-forming events preserved in crust. They yield marked peaks ages crystallization formation. latter might reflect periods high rates generation, as such be due to magmatism associated with deep-seated mantle plumes. Alternatively are artefacts preservation, they mark times...
The genesis of continental collision-related porphyry Cu deposits (PCDs) remains controversial. most common hypothesis links their with magmas derived from subduction-modified arc lithosphere. However, it is unclear whether a genetic linkage exists between collision- and subduction-related PCDs. Here, we studied Jurassic Cu-Au Miocene Cu-Mo in south Tibet. PCDs occur only the western segment arc, which has depleted mantle-like isotopic compositions [e.g., (87Sr/86Sr)i = 0.7041–0.7048; εNd(t)...
Differences in the preservation potential of crustal rocks may explain peaks ages previously attributed to enhanced crust formation.
The record of the continental lithosphere is patchy and incomplete; no known rock older than 4.02 Ga, less 5% rocks preserved are 3 Ga. In addition, there recognizable mantle from before We infer that was Ga ∼3 marks stabilization blocks have since survived. This linked to plate tectonics emerging as dominant tectonic regime in response thermal cooling, development a more rigid lithosphere, recycling water, which may turn facilitated tectonics. A number models, using different approaches,...
Research Article| October 01, 2005 Hf isotopes in zircon reveal contrasting sources and crystallization histories for alkaline to peralkaline granites of Temora, southeastern Australia A.I.S. Kemp; Kemp 1Department Earth Sciences, University Bristol, Bristol BS8 1RJ, UK Search other works by this author on: GSW Google Scholar R.J. Wormald; Wormald 2Malvern Gold, 15 Leamington Court, Wells Road, Malvern WR14 4HF, M.J. Whitehouse; Whitehouse 3Swedish Museum Natural History, Box 50007, SE-104...
The Yao’an porphyry Au system, Machangqing Cu-Mo and Beiya porphyry-skarn are spatially temporally associated with potassic felsic intrusions emplaced during the Eocene to Oligocene epochs at 37 33 Ma in a postcollisional intracontinental setting western Yunnan, Yangtze craton, China. monzonite quartz alkaline high K 2 O/Na O ratios (1.1–1.5). They have Sr-Nd-Pb isotopes similar coeval lamprophyres characterized by uniform zircon ɛ Hf (−6.4 −8.7) δ 18 values (6.6–7.0‰). interpreted as...
Research Article| November 01, 2008 Episodic, mafic crust formation from 4.5 to 2.8 Ga: New evidence detrital zircons, Slave craton, Canada A.B. Pietranik; Pietranik 11University of Wroclaw, Institute Geological Sciences, Cybulskiego 30, Wroclaw 50-205, Poland 22Department Earth Science, University Bristol, Wills Memorial Building, Queen's Road, Bristol BS8 1RJ, UK Search for other works by this author on: GSW Google Scholar C.J. Hawkesworth; Hawkesworth C.D. Storey; Storey A.I.S. Kemp; Kemp...
This paper evaluates controls on cassiterite crystallization under hydrothermal conditions based the textural setting and geochemistry of from six different mineralization environments world-class Gejiu tin district, southwest China. The samples feature diverse internal textures, as revealed by cathodoluminescence (CL) imaging, contain a range trivalent (Ga, Sc, Fe, Sb), quadrivalent (W, U, Ti, Zr, Hf), pentavalent (Nb, Ta, V) trace elements, with W being most abundant elements. Cassiterite...
Abstract The classical S–I–A-type granites from the Lachlan Orogen, SE Australia, formed as a tectonic end-member of accretionary orogenic spectrum, Paleozoic Tasmanides. sequence S- to I- A-type granite is repeated at least three times. All are syn-extensional, in dominantly back-arc setting behind single, stepwise-retreating arc system between 530 and 230 Ma. Peralkaline rare. Systematic S–I–A progressions indicate progressive dilution an old crustal component magmatism evolved (S-type)...