A5088035431- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Astro and Planetary Science
- Planetary Science and Exploration
- Geological Formations and Processes Exploration
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Geochemistry and Geologic Mapping
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Isotope Analysis in Ecology
- Geological formations and processes
- Geological and Geophysical Studies
- Pleistocene-Era Hominins and Archaeology
- Archaeology and ancient environmental studies
- Marine and environmental studies
- Methane Hydrates and Related Phenomena
- Marine Biology and Ecology Research
- Landslides and related hazards
- Stellar, planetary, and galactic studies
- Geophysical and Geoelectrical Methods
- Ancient and Medieval Archaeology Studies
- Paleopathology and ancient diseases
- Geophysical Methods and Applications
Curtin University
2014-2025
Commonwealth Scientific and Industrial Research Organisation
2012-2013
Australian Resources Research Centre
2013
Abstract Evaporation or freezing of water-rich fluids with dilute concentrations dissolved salts can produce brines, as observed in closed basins on Earth 1 and detected by remote sensing icy bodies the outer Solar System 2,3 . The mineralogical evolution these brines is well understood regard to terrestrial environments 4 , but poorly constrained for extraterrestrial systems owing a lack direct sampling. Here we report occurrence salt minerals samples asteroid (101955) Bennu returned...
Abstract The Pannonian Basin System originated from the collision of African and European tectonic plates, followed by Miocene extensional collapse that led to development a back‐arc basins. Accurate dating is essential comprehend tectono‐volcanic evolution region, particularly in under‐studied Danube Basin. Single‐grain 40 Ar/ 39 Ar has revealed volcanic activity commenced around 14.1 million years ago, aligning with previous biostratigraphic radioisotope data nearby fields. initial Middle...
Research Article| July 10, 2017 Collisional history of asteroid Itokawa F. Jourdan; Jourdan * 1Western Australian Argon Isotope Facility, Department Applied Geology, and John de Laeter Centre, Curtin University, Perth, WA 6845, Australia *E-mail: f.jourdan@curtin.edu.au Search for other works by this author on: GSW Google Scholar N.E. Timms; Timms 2Department E. Eroglu; Eroglu C. Mayers; Mayers A. Frew; Frew P.A. Bland; Bland G.S. Collins; Collins 3Impacts Astromaterials Earth Science...
Rubble piles asteroids consist of reassembled fragments from shattered monolithic and are much more abundant than previously thought in the solar system. Although that a kilometer diameter have been predicted to lifespan few 100 million years, it is currently not known how durable rubble pile are. Here, we show can survive ambient system bombardment processes for extremely long periods potentially 10 times longer their monolith counterparts. We studied three regolith dust particles recovered...
Argyle is the world's largest source of natural diamonds, yet one only a few economic deposits hosted in Paleoproterozoic orogen. The geodynamic triggers responsible for its alkaline ultramafic volcanic host are unknown. Here we show, using U-Pb and (U-Th)/He geochronology detrital apatite zircon, dating hydrothermal titanite, that emplacement lamproite bracketed between 1311 ± 9 Ma 1257 15 (2σ), older than previously known. To form diatreme complex, was likely driven by lithospheric...
Homogeneity of the ZMT04 muscovite was evaluated. It yielded consistent plateau ages (1772.2 ± 2.7 Ma, 2 σ ), which suggests that can serve as a reliable reference material for 40 Ar/ 39 Ar dating.
Abstract Over the Nullarbor Plain in South Australia, Desert Fireball Network detected a fireball on night of June 1, 2019 (7:30 pm local time), and 6 weeks later recovered single meteorite (42 g) named Arpu Kuilpu. This was then distributed to consortium collaborating institutions be measured analyzed by number methodologies including SEM‐EDS, EPMA, ICP‐MS, gamma‐ray spectrometry, ideal gas pycnometry, magnetic susceptibility measurement, μCT, optical microscopy, accelerator noble mass...
The Lipovany and Mučín paleobotanical localities contain important floral associations within the tuff horizons, which were used for determination of subtropical to tropical climatic conditions during Early Miocene. Based on combination results from plagioclase biotite 40Ar/39Ar dating, age deposition is around 17.3Ma. For locality, single-grain convergent ages 17.49±0.54Ma 17.28±0.06Ma, obtained, respectively. locality only provide an imprecise 16.5±1.4Ma due small size analyzed crystals....
Abstract Asteroid 4 Vesta is the only largely preserved differentiated asteroid and thus an excellent proxy to study early magmatism occurring on planets moons. In this study, we focus eucrite Pecora Escarpment (PCA) 82502, a medium‐ fine‐grained which chemical analyses suggest belongs main howardite–eucrite–diogenite clan, albeit with some peculiarities. We carried out backscattered electron diffraction microscopy of meteorite along step‐heating 40 Ar/ 39 Ar dating various types groundmass...
Pseudoplanktonic crinoid raft colonies are an enigma of the Jurassic. These thought to have developed as floating filter-feeding communities due exceptionally rich oceanic niche, high in water column enabling them reach large densities on these log rafts. However, this pseudoplanktonic hypothesis has not been quantitatively tested, and there remains some doubt that mode life was possible. The ecological structure colony is resolved using spatial point process analyses duration estimates...
In this study, we investigate the 40Ar/39Ar systematics of nineteen diogenites thought to come from deep crustal levels asteroid 4 Vesta. We applied both Electron Backscattered Diffraction (EBSD) and methods unbrecciated diogenite LAP 031381. obtained three plateau ages resulting in a combined weighted mean age 4441 ± 15 Ma (P = 0.16). The EBSD analyses suggest that 031381 displays minimal evidence shock and, when with petrography observations, diffusion modelling data, these results volume...
Abstract Murrili, the third meteorite recovered by Desert Fireball Network, is analyzed using mineralogy, oxygen isotopes, bulk chemistry, physical properties, noble gases, and cosmogenic radionuclides. The modal magnetic susceptibility, isotopes of Murrili point to it being an H5 ordinary chondrite. It heterogeneously shocked (S2–S5), depending on method used determine it, although not obviously brecciated in texture. Cosmogenic radionuclides yield a cosmic ray exposure age 6–8 Ma,...
Over the Nullarbor Plain in South Australia, Desert Fireball Network detected a fireball on night of 1 June 2019 (7:30 pm local time), and six weeks later recovered single meteorite (42 g) named Arpu Kuilpu. This was then distributed to consortium collaborating institutions be measured analyzed by number methodologies including: SEM-EDS, EPMA, ICP-MS, gamma-ray spectrometry, ideal gas pycnometry, magnetic susceptibility measurement, {\mu}CT, optical microscopy, accelerator noble mass...