Search Results - "Timms, Nicholas E"

Precise Radiometric Age Establishes Yarrabubba, Western Australia, as Earth's Oldest Recognised Meteorite Impact Structure by Erickson, Timmons M, Kirkland, Christopher L., Timms, Nicholas E., Cavosie, Aaron J., Davison, Thomas M.

“…The ~70 km-diameter Yarrabubba impact structure in Western Australia is regarded as among Earth’s oldest, but has hitherto lacked precise age constraints. Here…”
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Microstructural constraints on the mechanisms of the transformation to reidite in naturally shocked zircon by Erickson, Timmons M., Pearce, Mark A., Reddy, Steven M., Timms, Nicholas E., Cavosie, Aaron J., Bourdet, Julien, Rickard, William D. A., Nemchin, Alexander A.

“…Zircon (ZrSiO 4 ) is used to study impact structures because it responds to shock loading and unloading in unique, crystallographically controlled manners. One…”
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Quantitative characterization of plastic deformation of zircon and geological implications by Reddy, Steven M., Timms, Nicholas E., Pantleon, Wolfgang, Trimby, Patrick

“…The deformation-related microstructure of an Indian Ocean zircon hosted in a gabbro deformed at amphibolite grade has been quantified by electron backscatter…”
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Resolution of impact-related microstructures in lunar zircon: A shock-deformation mechanism map by TIMMS, Nicholas E., REDDY, Steven M., HEALY, David, NEMCHIN, Alexander A., GRANGE, Marion L., PIDGEON, Robert T., HART, Robert

“…– The microstructures of lunar zircon grains from breccia samples 72215, 73215, 73235, and 76295 collected during the Apollo 17 mission have been characterized…”
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Post-Imbrium Pb–Pb isochron ages for Apollo basaltic impact melt samples 14078 and 68415 by Snape, Joshua F., Nemchin, Alexander A., Whitehouse, Martin J., Li, Qiu-Li, Liu, Yu, Timms, Nicholas E., Erickson, Timmons, Benedix, Gretchen K.

“…The Apollo 14 and 16 missions returned several samples commonly interpreted as crystalline impact melt, with ages of approximately 3800–3850 Ma. Previous work…”
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Shocked quartz in polymict impact breccia from the Upper Cretaceous Yallalie impact structure in Western Australia by Cox, Morgan A., Cavosie, Aaron J., Ferrière, Ludovic, Timms, Nicholas E., Bland, Phil A., Miljković, Katarina, Erickson, Timmons M., Hess, Brian

“…Yallalie is a ~12 km diameter circular structure located ~200 km north of Perth, Australia. Previous studies have proposed that the buried structure is a…”
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Facies-based rock properties characterization for CO2 sequestration: GSWA Harvey 1 well, Western Australia by Olierook, Hugo K.H., Delle Piane, Claudio, Timms, Nicholas E., Esteban, Lionel, Rezaee, Reza, Mory, Arthur J., Hancock, Lena

“…GSWA Harvey 1 was drilled as part of the South West CO2 Geosequestration Hub carbon capture and storage project (South West Hub) to evaluate storage volume,…”
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Grain boundary dissolution porosity in quartzofeldspathic ultramylonites: Implications for permeability enhancement and weakening of mid-crustal shear zones by Billia, Marco A., Timms, Nicholas E., Toy, Virginia G., Hart, Rob D., Prior, David J.

“…Quartzofeldspathic ultramylonites from the Alpine Fault Zone, one of the world's major, active plate boundary-scale fault zones have quartz crystallographic…”
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Bunbury Basalt: Gondwana breakup products or earliest vestiges of the Kerguelen mantle plume? by Olierook, Hugo K.H., Jourdan, Fred, Merle, Renaud E., Timms, Nicholas E., Kusznir, Nick, Muhling, Janet R.

“…In this contribution, we investigate the role of a mantle plume in the genesis of the Bunbury Basalt using high-precision 40Ar/39Ar geochronology and…”
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Enhanced diffusion of uranium and thorium linked to crystal plasticity in zircon by Timms, Nicholas E, Kinny, Peter D, Reddy, Steven M

“…The effects of crystal-plasticity on the U-Th-Pb system in zircon is studied by quantitative microstructural and microchemical analysis of a large zircon grain…”
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Tectonic controls on sediment provenance evolution in rift basins: Detrital zircon U–Pb and Hf isotope analysis from the Perth Basin, Western Australia by Olierook, Hugo K.H., Barham, Milo, Fitzsimons, Ian C.W., Timms, Nicholas E., Jiang, Qiang, Evans, Noreen J., McDonald, Bradley J.

“…The role of tectonics in controlling temporal and spatial variations in sediment provenance during the evolution of extensional basins from initial rifting to…”
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Shocked monazite chronometry: integrating microstructural and in situ isotopic age data for determining precise impact ages by Erickson, Timmons M., Timms, Nicholas E., Kirkland, Christopher L., Tohver, Eric, Cavosie, Aaron J., Pearce, Mark A., Reddy, Steven M.

“…Monazite is a robust geochronometer and occurs in a wide range of rock types. Monazite also records shock deformation from meteorite impact but the effects of…”
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Rubble pile asteroids are forever by Jourdan, Fred, Timms, Nicholas E, Nakamura, Tomoki, Rickard, William D A, Mayers, Celia, Reddy, Steven M, Saxey, David, Daly, Luke, Bland, Phil A, Eroglu, Ela, Fougerouse, Denis

“…Rubble piles asteroids consist of reassembled fragments from shattered monolithic asteroids and are much more abundant than previously thought in the solar…”
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Shocked quartz in sandstone from the buried Ilkurlka impact structure, Officer Basin, Western Australia by Quintero, Raiza R., Cavosie, Aaron J., Alwmark, Sanna, Haines, Peter W., Danišík, Martin, Timms, Nicholas E., Lim, David

“…The Ilkurlka structure is an ~12 km diameter buried circular aeromagnetic anomaly within the Officer Basin in Western Australia. Prior studies postulated a…”
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Albany K‐Feldspar: A New Pb Isotope Reference Material by Liebmann, Janne, Ware, Bryant, Hartnady, Michael I.H., Kirkland, Christopher L., Timms, Nicholas E., Evans, Noreen J.

“…Lead isotopes are a powerful and versatile tool to elucidate fundamental geological problems related to the formation and evolution of continental crust…”
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SHRIMP U–Pb age constraints on magmatism and high-grade metamorphism in the Salem Block, southern India by Clark, Chris, Collins, Alan S., Timms, Nicholas E., Kinny, Peter D., Chetty, T.R.K., Santosh, M.

“…In this paper, we present Sensitive High Resolution Ion Microprobe (SHRIMP) U and Pb isotope analyses of zircon from a charnockite and a charnockite-hosted…”
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Shock impedance amplified impact deformation of zircon in granitic rocks from the Chicxulub impact crater by Wittmann, Axel, Cavosie, Aaron J., Timms, Nicholas E., Ferrière, Ludovic, Rae, Auriol, Rasmussen, Cornelia, Ross, Catherine, Stockli, Daniel, Schmieder, Martin, Kring, David A., Zhao, Jiawei, Xiao, Long, Morgan, Joanna V., Gulick, Sean P.S.

“…Zircon is a precise chronometer and prominent recorder of impact deformation. However, many impact-induced features in zircon are poorly calibrated, sometimes…”
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Reaction mechanism for the replacement of calcite by dolomite and siderite: implications for geochemistry, microstructure and porosity evolution during hydrothermal mineralisation by Pearce, Mark A., Timms, Nicholas E., Hough, Robert M., Cleverley, James S.

“…Carbonate reactions are common in mineral deposits due to CO 2 -rich mineralising fluids. This study presents the first in-depth, integrated analysis of…”
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Rapid hydration and weakening of anhydrite under stress: implications for natural hydration in the Earth's crust and mantle by Heeb, Johanna, Healy, David, Timms, Nicholas E, Gomez-Rivas, Enrique

“…Mineral hydration is an important geological process that influences the rheology and geochemistry of rocks and the fluid budget of the Earth's crust and…”
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Exploring the relative contribution of mineralogy and CPO to the seismic velocity anisotropy of evaporites by Vargas-Meleza, Liliana, Healy, David, Alsop, G. Ian, Timms, Nicholas E.

“…We present the influence of mineralogy and microstructure on the seismic velocity anisotropy of evaporites. Bulk elastic properties and seismic velocities are…”
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