A5001699636- Geology and Paleoclimatology Research
- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Geochemistry and Elemental Analysis
- Geological formations and processes
- Paleontology and Stratigraphy of Fossils
- Karst Systems and Hydrogeology
- Building materials and conservation
- Cultural Heritage Materials Analysis
- Heavy metals in environment
- Geological and Geophysical Studies
- Hydrocarbon exploration and reservoir analysis
- Isotope Analysis in Ecology
- Archaeology and ancient environmental studies
- Pleistocene-Era Hominins and Archaeology
- Geomagnetism and Paleomagnetism Studies
- Marine and fisheries research
- Maritime and Coastal Archaeology
- Fish Biology and Ecology Studies
- Methane Hydrates and Related Phenomena
- Marine and environmental studies
- Analytical chemistry methods development
- Geological and Geophysical Studies Worldwide
The University of Melbourne
2015-2024
The University of Queensland
1999-2006
Monash University
1993-1996
Hunting Energy Services (United Kingdom)
1986
Andrews University
1976
Elemental fractionation effects during analysis are the most significant impediment to obtaining precise and accurate U‐Pb ages by laser ablation ICPMS. Several methods have been proposed minimize degree of downhole fractionation, typically rastering or limiting acquisition relatively short intervals time, but these compromise minimum target size temporal resolution data. Alternatively, other developed which attempt correct for elemental fractionation. A common feature all techniques,...
Laser ablation ICP‐MS represents a promising new development for the acquisition of elemental and isotopic images from variety different materials. Compared to existing methods imaging, it offers relatively rapid throughput, very wide dynamic range, clean mass spectrum, utility at scales (from μm cm) multi‐element/isotopic capability. Although developing rapidly in biological sciences, method has not yet seen widespread application geological This contribution documents some preliminary...
We present a novel approach to creating compositional images using module created for use with the freely distributed software package Iolite. The creates by synchronising state of laser (e.g., whether is firing or not) and position on sample, which are recorded in log files, concurrently collected mass spectrometer data. When these two data sources synchronised, temporally can then be displayed versus ablation (i.e., spatially). Each reading plotted as circular spot representing size area...
This papers describes the source of systematic bias in U–Pb zircon dating by LA-ICP-MS.
Three-dimensional calibration surfaces, along with downhole fractionation corrections, can provide improved accuracy for trace element concentration analysis by LA-ICP-MS.
Abstract. We present new data on the 4.2 ka event in central Mediterranean from Corchia Cave (Tuscany, Italy) stalagmite CC27. The was analyzed for stable isotopes (δ13C and δ18O) trace elements (Mg, U, P, Y), with all proxies showing a coherent phase of reduced cave recharge between ca. 4.5 4.1 BP. Based current climatological cyclogenesis, reduction is considered to be associated weakening cyclone center located Gulf Genoa response advection air masses Atlantic during winter. These...
Abstract Tropical Pacific stalagmites are commonly affected by dating uncertainties because of their low U concentration and/or elevated initial 230 Th content. This poses problems in establishing reliable trends and periodicities for droughts pluvial episodes a region vulnerable to climate change. Here we constrain the chronology Cook Islands stalagmite using synchrotron µXRF two-dimensional mapping Sr concentrations coupled with growth laminae optical imaging constrained situ monitoring....
Abstract. Phosphorus (P) is potentially a very important environmental proxy in speleothem palaeoclimate reconstructions. However, the transfer of P to seems vary between cave sites. Therefore, it investigate source and way incorporated into on site-by-site basis before can be used as robust proxy. In this paper, distribution one modern two Early Pliocene speleothems formed coastal caves Christmas Island (Indian Ocean) Nullarbor Plain (southern Australia) investigated using microscopy...