Carbon dating used date specimens
“The discovery of this Precambrian occurrence indicates the potential for using the presence of reidite to indicate and record very ancient impact events,” Professor Reddy said. “It is a breakthrough discovery that will help determine terrestrial impact events which have had a profound influence on Earth’s geological, geochemical and biological evolution.” Deputy Vice-Chancellor Research and Development Professor Graeme Wright said Curtin is at the forefront of high-impact research and development in minerals and energy sectors.
With the success of this function it is anticipated further workshops on automated mineralogy will be held on an annual basis. “In recent years our research activity, particularly in geosciences, has grown significantly, driving Curtin’s rapid rise up the international university rankings,” Professor Wright said. On the 8th July 2015, staff at the John de Laeter Centre (Jd LC) hosted a two-hour workshop to discuss current and upcoming projects focused on geochemistry data discovery. All natural occurrences of reidite are associated with the transformation of the mineral zircon during the high pressures and temperatures associated with meteorite impact events. The audience comprised a score of people from around Australia with representatives present from Curtin University's Office of Research and Development, Curtin University Library, CSIRO, ANDS, NCI, GSWA, MRIWA and AMMRF. • Kellie Jones (Northparkes Mines), who discussed the application of the TIMA to mining and mineral processing at the Northparkes Cu-Au operation. • Marek Dosbaba (Tescan Orsay Holding), who reviewed the workflow of the TIMA software. However, the record of Precambrian impacts is poorly constrained due to the dynamic nature of plate tectonics, erosion and deposition of younger rocks, which may destroy or cover the evidence of ancient impacts. After delivering a presentation on their recently completed Digital Mineralogy Library project, the Jd LC hosts invited their visitors to offer feedback and discuss opportunities for new projects to further assist researchers in managing and disseminating high-value geochemistry datasets. J., Curran M., Edwards R., Faluvegi G., Ghan S., Horowitz L. R., Ming J., Myhre G., Nagashima T., Naik V., Rumbold S. B., Sudo K., Takemura T., Thevenon F., Xu B., Yoon J.-H.
The reidite was discovered using advanced mineral characterisation technologies housed in the John De Laeter Centre (Jd LC) at Curtin University. The response was positive with many participants sharing their views on the importance of data management and discovery, and recognising the contribution that the Jd LC has made in this area. Erratum: Evaluation of preindustrial to present-day black carbon and its albedo forcing from Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) (Atmospheric Chemistry and Physics 2013.13 (2607-2634))Oxygen reduction voltammetry on platinum macrodisk and screen-printed electrodes in ionic liquids: Reaction of the electrogenerated superoxide species with compounds used in the paste of Pt screen-printed electrodes? on: "Revisiting the "Yanbian Terrane": Implications for Neoproterozoic tectonic evolution of the western Yangtze Block, South China" – [Precambrian Research 151 (2006) 14-30] – [Precambrian Research 154 (2007) 153-157]Li ZX, Bogdanova SV, Collins AS, Davidson A, De Waele B, Ernst RE, Evans DAD, Fitzsimons ICW, Fuck RA, Gladkochub DP, Jacobs J, Karlstrom KE, Lu S, Natapov LM, Pease V, Pisarevsky SA, Thrane K, Vernikovsky V.
Working with the University of St Andrews, the team, led by Professor Steven Reddy from the Institute for Geoscience Research at Curtin’s Western Australian School of Mines, discovered the reidite in shocked zircon from impact ejecta at Stac Fada in Scotland.
He said reidite is important because it is only known to form in nature during meteorite impact events.
Dr Mark Aylmore, recently appointed to take on the role of Applied Mineralogist in the Jd LC, chaired the workshop that included presentations from: • Dr Kamran Khajehpour (AXT), who gave an overview of automated mineralogy and supported by Esben Kjaer (Struers) who gave a brief overview on sample preparation techniques.
• Prof Brent Mc Innes (Curtin Jd LC), who demonstrated the applications of the TIMA to Archeology, Petrology, Geochemical Mapping, and the Characterisation of Mineral & Petroleum Systems.
The mineralogical makeup of these samples is largely unknown, but technological advances in both microanalytical and geoinformatics science may shed new light on the contents of the vials. Geochronology and petrogenesis of gray gneisses from the Taihua complex at Xiong'er in the southern segment of the Trans-north China Orogen: Implications for tectonic transformation in the Early Paleoproterozoic Transition from oceanic to continental lithosphere subduction in southern Tibet: Evidence from the Late Cretaceous-Early Oligocene (~91-30Ma) intrusive rocks in the Chanang-Zedong area, southern Gangdese Enzyme activities of root tips and in situ profiles of soils and rhizospheres. Madison Wisconsin Mafic dykes intrusive into Pre-Cambrian rocks of the São Luís cratonic fragment and Gurupi Belt (Parnaíba Province), north-northeastern Brazil: Geochemistry, Sr-Nd-Pb-O isotopes, 40Ar/39Ar geochronology, and relationships to CAMP magmatis Zircon geochronology and metamorphic evolution of mafic dykes in the Hengshan Complex of northern China: Evidence for late Palaeoproterozoic extension and subsequent high-pressure metamorphism in the North China Craton Structural geology of the Mesozoic Miers Bluff Formation and crosscutting Paleogene dikes (Livingston Island, South Shetland Islands, Antarctica) – Insights into the geodynamic history of the northern Antarctic Peninsula Oligocene-Miocene middle crustal flow in southern Tibet: Geochronologic studies in Majba Dome, Geological Society of London Special Publication 268 “Channel Flow, Ductile Extrusion and Exhumation of Lower-Mid Crust Lee Y.