Browsing LPI Contributions by Author "Timms, Nicholas E."

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Precise radiometric age establishes Yarrabubba, Western Australia, as Earth's oldest recognised meteorite impact structure

Erickson, Timmons M.; https://orcid.org/0000-0003-4520-7294; Kirkland, Christopher L.; Timms, Nicholas E.; Cavosie, Aaron J.; Davison, Thomas M. (Nature, 2020-01-21)

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 we present U–Pb ages for impact-driven shock-recrystallised ...
Shock impedance amplified impact deformation of zircon in granitic rocks from the Chicxulub impact crater

Wittmann, Axel 1971-; Cavosie, Aaron J.; Timms, Nicholas E.; Ferrière, Ludovic; Rae, Auriol S. P.; Rasmussen, Cornelia; Ross, Catherine; Stockli, Daniel; Schmieder, Martin, 1978-; Kring, David A. (David Allen); Zhao, Jiawei; Morgan, Joanna V.; Gulick, Sean P. S.; IODP-ICDP Expedition 364 Scientists; https://orcid.org/0000-0002-1458-5148; https://orcid.org/0000-0002-3440-6282 (Elsevier, 2021-12-01)

To resolve issues with the shock petrographic use of zircon, we classified impact deformation features in 429 zircon grains in a continuous drill core of uplifted, granitic bedrock in the peak ring of the 200-km-diameter ...

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