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Principal research interests :
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Radiogenic Isotope geochemistry and mass spectrometry
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Petrology, geochemistry and petrogenesis of kimberlites
and lamproites
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Early Archaean crust-mantle evolution
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U-series geochronology applied to climate change, hominid
evolution, palaeoseismicity and archaeology
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Application of extinct nuclides to study early planetary
evolution
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The character of the mantle transition zone inferred
from xenoliths
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Evolution of chemical heterogeneity in the mantle
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Strontium isotope stratigraphy applied to petroleum
exploration
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Current Grants :
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ARC Discovery grant - Chemical and isotopic fingerprinting
of ancient Chinese porcelains and pottery. With Dr Jian-xin
Zhao (UQ) 2004-2006 $140K
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2005 Fellowship from Japan Society for Promotion of
Science at Tohoku University, Sendai for high-pressure
experimental research: $35K
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2006 Grant from Sultanate of Oman supporting kimberlite
research with Prof. S. Nasir - SQU: US$168K
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Current Graduate Students :
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PhD :
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Emmanuel Wembenyui - A trace element and radiogenic
isotopic study of historic flows on Mt Cameroon volcano,
West Africa: A record of variable mantle sources, magmatic
fractionation and evolution of HIMU (50% supervision)
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Michael Lawrence - Low blank trace element chemistry
of rivers in Queensland (25% supervision)
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Past Graduate Students :
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PhD :
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McDonald, G. (1999) - Late Archaean and early Proterozoic
crustal evolution of the Mount Isa block, northwest
Queensland, Australia (75% supervision)
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Hooper, D. (2001) - Crustal evolution of Paleo -to -
Mesoproterozoic rocks in the Peake and Denison Ranges,
South Australia (75% supervision)
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Hapugoda, S.U. (2002) - Late Archean and Early Proterozoic
Crustal Evolution of the Georgetown Block, Northeast
Queensland, Australia (75% supervision)
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Murphy, D. (2003) - The effect of deeply subducted oceanic
slabs and associated sediment on the chemical evolution
of the mantle and on mantle-derived melts (50% supervision)
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Qikai, X. (2005) High precision TIMS U-Th disequilibrium
dating and C,O,Sr isotope-based multi-proxy palaeoclimatic
study of speleothems in Australia (25% supervision)
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Baoping Li (2006) Elemental and isotopic fingerprinting
of Chinese archaeological ceramics (25% supervision)
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Current Projects :
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Geochemistry and isotope systematics of 150 Ma old kimberlites
and carbonatites in Oman. (with Prof Sobhi Nasir SQU
- Oman)
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Constraining sources of basalt adzes in Polynesia using
geochemistry and radiogenic isotopic data (with Dr Marshall
Weisler UQ)
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High-Pressure Experimental studies at Tohoku University
to investigate phases in the lower mantle and core that
can fractionate parent/daughter isotope ratios. This
is one of the first examples of the application high-pressure
multi-anvil and diamond anvil experimentation to understand
isotope heterogeneity in the mantle. (with Prof Eiji
Ohtani, Tohoku University)
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Characterization of Ti-rich silicate perovskite, a new
phase in the lower mantle (>660 km). This is the homogeneous
phase that exsolves to form pyroxene-ilmenite xenoliths
in kimberlite. This research has important implications
for kimberlite petrogenesis (with Prof Eiji Ohtani and
Dr Tohoku University)
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Early Archean crustal evolution of the Mt Narryer gneisses
in the Yilgarn Block and terranes in the Pilbara Block
(with Prof. S. Maruyama - TITECH Tokyo, Japan)
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Early Archean crustal evolution of pre 3.8 Ga gneisses
in the North Atlantic Craton (with Dr. S. Maruyama -
TITECh Tokyo, Japan and Dr B. Kamber, Laurentian University,
Canada)
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Recent Publications :
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In Press
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Lawrence, M.G., Greig, A., Collerson, K.D., &
Kamber, B.S. Rare earth element and yttrium variability
in South East Queensland waterways. Aquatic Geochemistry
00, 1-33
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Lawrence, M.G., Greig, A., Collerson, K.D., &
Kamber, B.S. Direct quantification of rare earth element
concentrations in natural waters by IC-PMS. Applied
Geochemistry
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Li, B.P., Zhao, J.X., Greig, A., Collerson, K.D.,
Feng, Y.X., Sun, M.S., Guo, Z.X. Zhuo, Y.X. Characterisation
of Chinese Tang sancai from Gongxian and Yaozhou kilns
using ICP-MS trace element and TIMS Sr-Nd isotopic analysis,
Journal of Archaeological Science
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Yu, K.F., Zhao, J.X., Wang, P.X., Shi, Q., Meng, Q-S.
& Collerson, K.D. and Liu, T.S. High precision
TIMS U-seriers and AMS 14C dating of a coral reef lagoon
sediment core from the southern China Sea. Quaternary
Science Reviews
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Zhao, J.-X., Yu, K.-F., Collerson, K.D. and Chen,
T.-G., Holocene multiple sea-level high stands recorded
in a coral reef in the northern South China Sea. Earth
and Planetary Science Letters
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