A5000822137- Paleontology and Stratigraphy of Fossils
- Coral and Marine Ecosystems Studies
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Geochemistry and Elemental Analysis
- Marine and fisheries research
- Geological and Geochemical Analysis
- Geological formations and processes
- Paleontology and Evolutionary Biology
- Evolution and Paleontology Studies
- Marine animal studies overview
- Marine Biology and Ecology Research
- Calcium Carbonate Crystallization and Inhibition
- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Marine and coastal plant biology
- Pleistocene-Era Hominins and Archaeology
- Isotope Analysis in Ecology
- Ichthyology and Marine Biology
- Wildlife Ecology and Conservation
- Geochemistry and Geologic Mapping
- Wound Healing and Treatments
- Oceanographic and Atmospheric Processes
- Bat Biology and Ecology Studies
- Species Distribution and Climate Change
The University of Queensland
2016-2025
Queensland Department of Environment and Science
2024
South Western Sydney Local Health District
2024
Liverpool Hospital
2024
Camden and Campbelltown Hospitals
2024
Environmental Earth Sciences
2022
Queensland University of Technology
2002-2011
Williams College
2007
Des Moines University Osteopathic Medical Center
2000-2001
Science Center of Iowa
2000
ABSTRACT Bedded carbonate rocks from the 3.45 Ga Warrawoona Group, Pilbara Craton, contain structures that have been regarded either as oldest known stromatolites or abiotic hydrothermal deposits. We present new field and petrological observations high‐precision REE + Y data carbonates in order to test origin of Trace element geochemistry a number laminated stromatolitic dolomite samples c . 3.40 Strelley Pool Chert conclusively shows they precipitated anoxic seawater, probably very shallow...
Abstract Rare earth element geochemistry in carbonate rocks is utilized increasingly for studying both modern oceans and palaeoceanography, with additional applications investigating water–rock interactions groundwater diagenesis. However, the study of rare ancient requires preservation their distribution patterns through subsequent The subjects this study, Pleistocene scleractinian coral skeletons from Windley Key, Florida, have undergone partial to complete neomorphism aragonite calcite a...
ABSTRACT Throughout most of the Phanerozoic, reef rigidity resulted as much, or more, from early lithification by microbial carbonates and biologically induced cements (non‐enzymatic carbonates) than biological encrustation of, by, large, enzymatically secreted metazoan skeletons. Reef framework is divided into four categories: (1) skeletal metazoan; (2) non‐skeletal microbialite (stromatolite thrombolite); (3) calcimicrobe; (4) biocementstone, in which small delicate organisms serve...
Around 88 large vertebrate taxa disappeared from Sahul sometime during the Pleistocene, with majority of losses (54 taxa) clearly taking place within last 400,000 years. The largest was 2.8-ton browsing Diprotodon optatum , whereas ∼100- to 130-kg marsupial lion, Thylacoleo carnifex world’s most specialized mammalian carnivore, and Varanus priscus lizard known, were formidable predators. Explanations for these extinctions have centered on climatic change or human activities. Here, we review...
Microbial carbonates contain valuable chemical, isotopic and molecular information regarding the Precambrian Earth. They record shallow-water complementary to deep ocean proxies, such as banded iron formation black shale. Six groups of well-preserved stromatolites illustrate how rare earth elements (REE) are used for chemical investigation. The first task is test whether REE inventory carbonate compromised by clastic, volcanic, or diagenetic contaminants. Once cleanliness has been verified,...
Skeletal and non-skeletal components of marine sedimentary rocks have been analyzed for the purpose reconstructing rare earth element (REE) yttrium (Y) compositions paleo-seawater, but skeletal carbonates frequently proven to be unreliable recorders seawater chemistry. Here, we present a systematic multi-technique assessment other trace elements in ooid sands from modern Great Bahama Bank (GBB–marine) Salt Lake (GSL–continental) based on strong-acid (hydrofluoric nitric) weak-acid (acetic)...
Abstract With rubble predicted to increase on coral reefs worldwide, we review the physical, biological, and ecological dynamics of beds, with a focus how generation, mobilization, binding, recruitment is expected change future reefs. Major disturbances, including storms bleaching, are in intensity frequency, and—like localized impacts blast fishing ship groundings—generate large quantities rubble. Reefs will have increasingly smaller recovery windows between successive leading persistence...
Context Examining Australia’s late Quaternary subfossil record can be valuable in assessing whether the current diversity of small-bodied mammals seen across some parts northern Australia is ‘normal’. Such records are important for establishing baselines measuring historic changes communities today and into future. These datasets becoming increasingly important, given trajectories global climate change, predicted habitat losses other potential anthropogenic impacts. Aims The main aim this...
Abstract Natural ecosystems are routinely impacted by acute disturbances that generate space for early colonizers. Following disturbances, the interaction strengths of top‐down and bottom‐up factors across environmental gradients influence community succession. On coral reefs, rubble beds commonly form following major can persist decades. Yet, there is little understanding successional pathways lead to binding—where bound consolidated stable substrate suitable recruitment—and subsequent...