The formation of peak rings in large impact craters.

Joanna V. Morgan; Sean P.S. Gulick; Timothy Bralower; Elise Chenot; Gail Christeson; Philippe Claeys; Charles Cockell; Gareth S. Collins; Marco J.L. Coolen; Ludovic Ferrière; Catalina Gebhardt; Kazuhisa Goto; Heather Jones; David A. Kring; Erwan Le Ber; Johanna Lofi; Xiao Long; Christopher Lowery; Claire Mellett; Rubén Ocampo-Torres; Gordon R. Osinski; Ligia Perez-Cruz; Annemarie Pickersgill; Michael Poelchau; Auriol Rae; Cornelia Rasmussen; Mario Rebolledo-Vieyra; Ulrich Riller; Honami Sato; Douglas R. Schmitt; Jan Smit; Sonia Tikoo; Naotaka Tomioka; Jaime Urrutia-Fucugauchi; Michael Whalen; Axel Wittmann; Kosei E. Yamaguchi; William Zylberman

doi:10.1126/science.aah6561

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The formation of peak rings in large impact craters.

Journal article

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The formation of peak rings in large impact craters.

Joanna V. Morgan, Sean P.S. Gulick, Timothy Bralower, Elise Chenot, Gail Christeson, Philippe Claeys, Charles Cockell, Gareth S. Collins, Marco J.L. Coolen, Ludovic Ferrière, …

Science, Vol.354(6314), pp.878-882

2016

DOI: https://doi.org/10.1126/science.aah6561

PMID: 27856906

Abstract

Large impacts provide a mechanism for resurfacing planets through mixing near-surface rocks with deeper material. Central peaks are formed from the dynamic uplift of rocks during crater formation. As crater size increases, central peaks transition to peak rings. Without samples, debate surrounds the mechanics of peak-ring formation and their depth of origin. Chicxulub is the only known impact structure on Earth with an unequivocal peak ring, but it is buried and only accessible through drilling. Expedition 364 sampled the Chicxulub peak ring, which we found was formed from uplifted, fractured, shocked, felsic basement rocks. The peak-ring rocks are cross-cut by dikes and shear zones and have an unusually low density and seismic velocity. Large impacts therefore generate vertical fluxes and increase porosity in planetary crust.

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Title: The formation of peak rings in large impact craters.
Creators - without role: Joanna V. Morgan - Imperial College London
Sean P.S. Gulick - The University of Texas at Austin
Timothy Bralower - Pennsylvania State University
Elise Chenot - Centre National de la Recherche Scientifique
Gail Christeson - The University of Texas at Austin
Philippe Claeys - Vrije Universiteit Brussel
Charles Cockell - University of Edinburgh
Gareth S. Collins - Imperial College London
Marco J.L. Coolen - Curtin University
Ludovic Ferrière - Natural History Museum Vienna
Catalina Gebhardt - Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
Kazuhisa Goto - Tohoku University
Heather Jones - Pennsylvania State University
David A. Kring - Lunar and Planetary Institute
Erwan Le Ber - University of Leicester
Johanna Lofi - Université de Montpellier, Géosciences Montpellier - GM
Xiao Long - School of Earth Sciences [Wuham]
Christopher Lowery - The University of Texas at Austin
Claire Mellett - British Geological Survey
Rubén Ocampo-Torres - Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé
Gordon R. Osinski - Western University
Ligia Perez-Cruz - Universidad Nacional Autónoma de México
Annemarie Pickersgill - University of Glasgow
Michael Poelchau - University of Freiburg
Auriol Rae - Department of Earth Science and Technology [Imperial College London]
Cornelia Rasmussen - University of Utah
Mario Rebolledo-Vieyra - Unidad de Ciencias del Agua
Ulrich Riller - Universität Hamburg
Honami Sato - Japan Agency for Marine-Earth Science and Technology
Douglas R. Schmitt - University of Alberta
Jan Smit - Vrije Universiteit Amsterdam
Sonia Tikoo - Department of Earth and Planetary Sciences [Piscataway]
Naotaka Tomioka - Japan Agency for Marine-Earth Science and Technology
Jaime Urrutia-Fucugauchi - Universidad Nacional Autónoma de México
Michael Whalen - University of Alaska Fairbanks
Axel Wittmann - Physical Sciences
Kosei E. Yamaguchi - Toho University
William Zylberman - Western University
Publication Details: Science, Vol.354(6314), pp.878-882
Grant note: Work funded by the European Consortium for Ocean Research Drilling (ECORD) and the International Continental Scientific Program, with contributions and logistical support from the Yucatan State Government and Universidad Nacional Autónoma de México (UNAM).
Identifiers: 9933760109311
Academic Unit: Géosciences Montpellier - GM
Language: English
Resource Type: Journal article
Local Fields: hal-01399386