Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Timmons M. Erickson"'
Autor:
Timmons M. Erickson, Christopher L. Kirkland, Nicholas E. Timms, Aaron J. Cavosie, Thomas M. Davison
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
The ~70 km-diameter Yarrabubba impact structure in Western Australia has previously been regarded as among Earth’s oldest meteorite craters, but has hitherto lacked absolute age constraints. Here, the authors determine a precise impact age of 2229
Externí odkaz:
https://doaj.org/article/ebbda656ed974c96a2cd015eff0c25e2
Autor:
Kevin Righter, Anna L. Butterworth, Zack Gainsforth, Christine E. Jilly-Rehak, Subhayan Roychoudhury, Kayla Iacovino, Richard Rowland, Timmons M. Erickson, Kellye Pando, Daniel K. Ross, David Prendergast, Andrew J. Westphal
Publikováno v:
American Mineralogist. 108:498-513
Control of oxygen fugacity during high-temperature phase equilibrium experiments is required to simulate the conditions that exist in natural systems. At high pressures, oxygen fugacity may be imposed using solid buffer equilibria via the classic “
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::836bf9882c79e885c535581207ecc597
https://doi.org/10.2138/am-2022-8301
https://doi.org/10.2138/am-2022-8301
Autor:
Steven M. Reddy, David W. Saxey, Aaron J. Cavosie, William D.A. Rickard, Timmons M. Erickson, Michael T.D. Wingate, Denis Fougerouse, M. A. Cox
Publikováno v:
Geochimica et Cosmochimica Acta. 314:381-396
To test the potential of deformation twins to record the age of impact events, micrometre-scale size mechanical twins in shocked monazite grains from three impact structures were analyzed by atom probe tomography (APT). Shocked monazite from Vredefor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43ad4d3cf917afcdd26a59616e82c0f3
https://doi.org/10.1016/j.gca.2021.08.025
https://doi.org/10.1016/j.gca.2021.08.025
Autor:
Fred Jourdan, Martin Schmieder, Nicholas E. Timms, Timmons M. Erickson, M. A. Cox, Michael I. H. Hartnady, Christopher L. Kirkland
Publikováno v:
Geochimica et Cosmochimica Acta. 304:68-82
The Haughton Dome located on Devon Island, in the Canadian Archipelago represents a well-preserved, moderate-sized, complex impact crater. Previous age constraints for the 24 km-diameter impact structure have ranged from ca. 21 Ma to ca. 39 Ma. Herei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77102ae59c38bd533e94872bb30d6602
https://doi.org/10.1016/j.gca.2021.04.008
https://doi.org/10.1016/j.gca.2021.04.008
Autor:
Jacob A. Tielke, Anne H. Peslier, Roy Christoffersen, Timmons M. Erickson, Christopher J. Cline, Ryan S. Jakubek, Mark J. Cintala, Zia Rahman, Marc D. Fries, Pierre Bouilhol
Publikováno v:
Journal of Geophysical Research: Planets. 127
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed52983e3fc48324d239edefcd1cea1d
https://doi.org/10.1029/2021je007042
https://doi.org/10.1029/2021je007042
Publikováno v:
Microscopy and Microanalysis. 27:1846-1848
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84d20b52d784949c3d2939fc244b3058
https://doi.org/10.1017/s1431927621006759
https://doi.org/10.1017/s1431927621006759
Autor:
Hugues Leroux, Chris D. Clark, Christopher L. Kirkland, Denis Fougerouse, Timmons M. Erickson, Anne-Magali Seydoux-Guillaume, Damien Jacob, William D.A. Rickard, Steven M. Reddy, David W. Saxey
Publikováno v:
Geology
Geology, Geological Society of America, In press, ⟨10.1130/g48400.1⟩
Geology, 2021, ⟨10.1130/G48400.1⟩
Geology, Geological Society of America, In press, ⟨10.1130/g48400.1⟩
Geology, 2021, ⟨10.1130/G48400.1⟩
Mechanical twins form by the simple shear of the crystal lattice during deformation. In order to test the potential of narrow twins in monazite to record the timing of their formation, we investigated a ca. 1700 Ma monazite grain (from the Sandmata C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a3961b60bdb1091bbcc983a9a1ee051
https://doi.org/10.1130/g48400.1
https://doi.org/10.1130/g48400.1
Autor:
Noreen J. Evans, Ludovic Ferrière, William D.A. Rickard, Timmons M. Erickson, Gareth S. Collins, Auriol S. P. Rae, Axel Wittmann, Nicholas E. Timms, Aaron J. Cavosie, Christopher L. Kirkland, Sean P. S. Gulick
Publikováno v:
Geochimica et Cosmochimica Acta. 281:12-30
Hydrothermal activity is a common phenomenon in the wake of impact events, yet identifying and dating impact hydrothermal systems can be challenging. This study provides the first detailed assessment of the effects of shock microstructures and impact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79a8259b4410071c869110a3aae35581
https://doi.org/10.1016/j.gca.2020.04.031
https://doi.org/10.1016/j.gca.2020.04.031
Publikováno v:
Geochimica et Cosmochimica Acta. 273:313-330
Age determination of impact structures via the zircon U-Pb system remains challenging and often ambiguous due to highly variable effects of shock metamorphism on U-Pb geochronology. It is, therefore, crucial to link the observed zircon microtextures,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cdbde693a22771cb4642efe63c35368
https://doi.org/10.1016/j.gca.2020.01.017
https://doi.org/10.1016/j.gca.2020.01.017
Autor:
Aaron J. Cavosie, Nicholas E. Timms, Timmons M. Erickson, Thomas M. Davison, Christopher L. Kirkland
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Nature Communications
Nature Communications
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 accessory minerals. Shock-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e296449c66a0f3d3f1501be765d4dcd6
http://link.springer.com/article/10.1038/s41467-019-13985-7
http://link.springer.com/article/10.1038/s41467-019-13985-7