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In situ location and U‐Pb dating of small zircon grains in

We share your passion for all things science. Biology, chemistry, physics, astronomy, earth science and mathematics – our expertise is broad. Learn about us. Events. Our people. On this page you will find a list of contact details for staff in Earth, Atmosphere and …

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Improved laser ablation U-Pb zircon geochronology through robust downhole fractionation correction. Authors. Chad Paton, University of Melbourne, Given that this is well within the normal reported uncertainties of U-Pb zircon dating of 1 to 4% [Jackson et al., 2004;

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Gold- and diamond-bearing White Hills Gravel, St Arnaud

Unlocking Value back from Geoscience Australia's legacy data sets. 23 August 2017. S.W Canning Basin, WA. 1956. and following three-year stints at the University of Melbourne and the Geological Survey of Western Australia, has spent the last 10 years conducting U-Pb SHRIMP research in the Geochronology Section at Geoscience Australia.

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Problems with the U-Pb Radioisotope Dating Methods—2. U

Dating of two suites of zircons by fission track and U – Pb (SHRIMP) methods gave overlapping ages between 67.4 ± 5.2 and 74.5 ± 6.3 Ma, indicating a maximum age of Late Cretaceous for the formation.

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Monazite U-Pb dating and 40Ar- 39Ar thermochronology of

Read "Isotopic (U-Pb, Nd) and geochemical constraints on the origins of the Aileu and Gondwana sequences of Timor, Journal of Asian Earth Sciences" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Zircon U–Th–Pb–He double dating of the Merlin kimberlite

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Malapa Fossil Site, Cradle of Humankind - Wikipedia

PSThe Impact of Recalibrating Palynological Zones to the Chronometric Timescale: Revised Stratigraphic Relationships in Australian Permian and Triassic Hydrocarbon-Bearing Basins* R., K.R. Ludwig, I. Metcalfe, and P.R. Renne, 2004, Age and Timing of the Permian Mass Extinctions: U/Pb Dating of Closed-System Hydrocarbon Provinces

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Insights Into Geothermal Systems from U-Pb Dating of

Although U occurs in a large number of minerals, only a few are suitable for dating by the U-Pb methods. To be useful for dating, a mineral must be retentive with respect to U, Pb, and the intermediate daughters, and it should be widely distributed in a variety of rocks.

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U-TH-PB DATING: AN EXAMPLE OF FALSE ISOCHRONS

Jon Woodhead, University of Melbourne, School of Earth Sciences, Faculty Member. Studies Climate Change, Geochemistry, and Geochronology. University of Melbourne, School of Earth Sciences, Faculty Member. Unfollow Follow The recent adaptation of the U-Pb dating technique to speleothems has greatly extended their potential as

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U-Pb Detrital Zircon Analysis – Results of an Inter

Melbourne Isotope Geoscience. Home About us. About us Science Geological Society of London Special Publications 461. Green, H., Gleadow, A., Finch, D., Hergt, J., Ouzman, S (2017) Mineral deposition systems at rock sites, Kimberley, Northern Australia - Field observations. Pickering, R., (2013) U-Pb dating small buried stalagmites from

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Unlocking Value back from Geoscience Australia's legacy

Their combined citations are counted only for the first article. Joseph Petrus University of Melbourne Verified email at unimelb.edu.au. Krzysztof Szopa adiunkt, Combined apatite fission track and U–Pb dating by LA–ICP–MS and its application in apatite provenance analysis.

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Improved laser ablation U-Pb zircon geochronology through

We show how the absence of fossils can be partially overcome by the use of SHRIMP U–Pb dating, and how the use of surface gamma-ray logging (Krassay 1998 Krassay, AA. Monash University, Melbourne, (unpubl.)

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Publications — Melbourne Isotope Geoscience

View Helen McFarlane’s profile on LinkedIn, the world's largest professional community. analysis of Palaeoproterozoic juvenile crust formation (SHRIMP U-Pb dating of magmatic zircon and LA-ICP-MS U-Pb dating of detrital zircon) prior to Eburnean deformation and metamorphism. Supervisor/ Duty Manager Melbourne, Australia. Helen

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U–Pb dating of calcite–aragonite layers in speleothems

Here, we developed a technique for U-Pb dating of titanite using the 193 nm ArF laser-ablation system and Cherniak D J, Watson E B. Pb diffusion in zircon.. E u-pb zircon dating methods. vamps dating quiz maken E u-pb zircon dating methods c dating fails page 702 E u-pb zircon dating methods

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U/Pb dating of a terminal Pliocene coral from the

Meet the team — we are based in the Schools of Earth Sciences and Geography at the University of Melbourne, Australia Staff Jon Woodhead. Jon is an isotope geochemist who does quite a bit of geochronology. He specialises in U-Pb dating of older speleothems - those beyond the range of the U-Th chronometer - in studies of palaeoclimate

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ABOUT ME

10/10/2009 · U–Pb dating of zircon grains from folded leucogneiss reveals a crystallization age of 508 ± 11 Ma The University of Melbourne, Australia, and (2) a PHILIPS XL30 scanning electron microscope with attached IS200 energy-dispersive spectrometer (operating conditions 15 KV and 0·2 nA) at the EM-X-ray facility, The University of Newcastle.

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LA-ICPMS U-Pb carbonate dating based on image mapping

Syn-metamorphic dates for tourmaline formation Monash University, Melbourne, VIC 3800, Australia Roland Mass, Katherine Bassano pmd*CRC, School of Earth Sciences, Melbourne University, Melbourne, VIC 3010, Australia. 752 main advantage of PbSL over bulk U-Pb dating is the abil-ity to chemically separate Pb from U-rich and U-poor

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Robyn Joe Pickering | Ph.D | University of Melbourne

Petra Bajo, University of Melbourne, Department of Resource management and Geography, Graduate Student. Studies Speleothems, Palaeoclimate, and Karst. University of Melbourne, Department of Resource management and Geography, (U–Pb) dating of speleothems have opened up new opportunities in palaeoclimate research. An important goal in

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Who we are — Speleothem Science

U/Pb dating 238 U/Pb geochronology methods followed those outlined in Woodhead U/ 206Pb– 207Pb/ 206Pb concordia plot are clustered tightly to the iso- et al. (2006). Six subsamples were extracted from the coral using a dental chron, (3) the U/Pb age is independently corroborated by foraminifer- drill, dissolved, and spiked with a mixed 233U

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Helen McFarlane - Research Associate - The University of

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2School of Earth Sciences, The University of Melbourne, Parkville, Australia Direct U-Pb dating of calcite and other carbonate minerals making up limestones, carbonate veins, spe leothems or diagenetic cements has important applications potentially permiting dating of unfossiliferous sedimentary carbonate

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Improved laser ablation U‐Pb zircon geochronology through

LA-ICP-MS U-Pb dating of zircon from the basal basaltic unit in the section gives an age of 291.9 ± 2.2 Ma (MSWD = 0.30, n = 17); this age, combined with previously published geochronological data, indicates that the basalts in the Tarim Basin were emplaced between 292 Ma and 272 Ma, with about 90% of the basalts being emplaced between 292 and

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University of Melbourne, Melbourne - ResearchGate

Chapter VI: Monazite U-Pb dating and 40Ar-39Ar thermochronology of metamorphic events in the Central African Copperbelt during the Pan-African Lufilian Orogeny1 C. RAINAUD1, S. MASTER1, R. A. ARMSTRONG2, D. PHILLIPS2,3 AND L. J. ROBB1 1Economic Geology Research Institute, School of Geosciences,University of the

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U-Th-Pb “Dating”: An Example of False “Isochrons

U–Pb dating of calcite–aragonite layers in speleothems from hominin sites in South Africa by MC-ICP-MS. School of Earth Sciences, University of Melbourne, where such terrestrial records of past climates are rare. Without Parkville, Melbourne, VIC 3010, Australia.

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Cosmos greenstone terrane: Insights into an Archaean

1 School of Earth Sciences, University of Melbourne, Victoria, 3010, Australia. 2 School of Earth and Environmental Sciences, James Cook University, Queensland 4811, Australia. 3 School of Geosciences, University of the Witwatersrand, Johannesburg, Wits 2050, South Africa. U-Pb dating, and paleomagnetic data .

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Jon Woodhead | University of Melbourne - Academia.edu

U-Pb Detrital Zircon Analysis – Results of an Inter-laboratory Comparison. School of Earth Sciences, The University of Melbourne, Melbourne, Victoria, Australia; Search for more papers by this author Inter-laboratory comparison of laser ablation ICP-MS and SIMS U-Pb dating of synthetic detrital zircon samples provides an insight into

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Our people - Science - Monash University, Melbourne

Changes in the new UPb DRS (“U_Pb_Geochronology3”) Dr Chad Paton March 15, 2013 2 Comments There are some noteworthy improvements in the latest release of the UPb DRS (U_Pb_Geochronology3), so I thought I should post a description of what’s changed.

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Isotopic (U-Pb, Nd) and geochemical constraints on the

successful U–Pb dating of these relatively young, buried stalagmites is thorough pre- University of Melbourne, McCoy Building, Cnr Swanston and Elgin Streets, Victoria 3010, Australia 2 Department of Geological Sciences, University of Cape Town, Cape Town 7701, South Africa.

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Petra Bajo | University of Melbourne - Academia.edu

Malapa Fossil Site, Cradle of Humankind. Malapa is a fossil-bearing cave located about 15 kilometres (U-Pb) dating by Andy Herries (La Trobe University, Australia), Robyn Pickering (University of Melbourne, Australia) and Jan Kramers (University of Johannesburg, South Africa).

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Zircon U/Pb chronology, tectono-thermal and crust-forming

Monazite U-Pb dating and 40 Ar- 39 Ar thermochronology of metamorphic events in the Central African Australian National University, Canberra, ACT 0200, Australia), AD(School of Earth Sciences, University of Melbourne, Melbourne, Victoria, Australia), AE(Economic Geology Research Institute, School of Geosciences, University of the

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As with other isochron methods, the U-Pb isochron method has been questioned in the open literature. U-Th-Pb “Dating”: An Example of False “Isochrons” Melbourne, Australia: The Australasian Institute of Mining and Metallurgy.

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U/Pb dating of a terminal Pliocene coral from the

Provenance studies on the Cape Supergroup, which dominates CFB outcrop, are largely limited to U-Pb dating of detrital zircons, which indicate the Namaqua-Natal Metamorphic Complex and Pan-African

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U-Pb Geochronology | Iolite Software

partments at Melbourne and Adelaide Univer• Zircon U/Pb chronology, tectono-thermal and crust-forming events in the Tomkinson Ranges, Musgrave Block, Central Australia The Musgrave Block is an important SHRIMP U-Pb zircon dating provides more accurate ages, in favourable circum•

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Continental Reworking during Overprinting Orogenic Events

The value of speleothems as archives of palaeoclimate information is greatly enhanced by their inherent suitability to U-series dating. U-Pb dating goes beyond the 500 000 year cut off of U-Th and

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Th-Pb and U-Pb Dating of Ore-Stage Calcite and Paleozoic

U/Pb dating of a terminal Pliocene coral from the Indonesian Seaway. U/Pb dating and geochemical analysis of detrital coral4.1. Screening. Coral sample TL07 (Fig. 2e) was extracted from the upper conglomerate, (MC-ICP-MS) at the University of Melbourne.

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David Chew - Google Scholar Citations

As with other isochron methods, the U-Pb isochron method has been questioned in the open literature, because often an excellent line of best fit between ratios obtained from a set of good cogenetic samples gives a resultant “isochron” and yields a derived “age” that has no distinct geological meaning.