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 Ferriere; Catalina Gebhardt; Kazuhisa Goto; Heather Jones; David A. Kring; Erwan Le Ber; Johanna Lofi; Xiao Long; Christopher Lowery; Claire Mellett; Ruben 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

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 Ferriere, Catalina Gebhardt, Kazuhisa Goto, Heather Jones, David A. Kring, Erwan Le Ber, Johanna Lofi, Xiao Long, Christopher Lowery, Claire Mellett, Ruben Ocampo-TorresGordon 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

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	878-882
Number of pages	5
Journal	Science
Volume	354
Issue number	6314
DOIs	https://doi.org/10.1126/science.aah6561
Publication status	Published - 18 Nov 2016

Keywords / Materials (for Non-textual outputs)

CRUSTAL STRUCTURE
CHICXULUB CRATER
BASIN FORMATION
ASYMMETRY
MODEL
GRAVITY
DENSITY
QUARTZ

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morgan-science 2016Proof, 1.56 MB

http://eprints.gla.ac.uk/131793/

IODP-ICDP Expedition 364
Rae, A. (Researcher)
Project: Research

Charles Cockell
- c.s.cockelled.acuk
- School of Physics and Astronomy - Chair of Astrobiology
- Centre for Engineering Biology
Person: Academic: Research Active

Cite this

Morgan, J. V., Gulick, S. P. S., Bralower, T., Chenot, E., Christeson, G., Claeys, P., Cockell, C., Collins, G. S., Coolen, M. J. L., Ferriere, L., Gebhardt, C., Goto, K., Jones, H., Kring, D. A., Le Ber, E., Lofi, J., Long, X., Lowery, C., Mellett, C., ... Zylberman, W. (2016). The formation of peak rings in large impact craters. Science, 354(6314), 878-882. https://doi.org/10.1126/science.aah6561

@article{d26a6278e76f45a99c7ba49545b43043,

title = "The formation of peak rings in large impact craters",

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.",

keywords = "CRUSTAL STRUCTURE, CHICXULUB CRATER, BASIN FORMATION, ASYMMETRY, MODEL, GRAVITY, DENSITY, QUARTZ",

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

year = "2016",

month = nov,

day = "18",

doi = "10.1126/science.aah6561",

language = "English",

volume = "354",

pages = "878--882",

journal = "Science",

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publisher = "American Association for the Advancement of Science",

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Morgan, JV, Gulick, SPS, Bralower, T, Chenot, E, Christeson, G, Claeys, P, Cockell, C, Collins, GS, Coolen, MJL, Ferriere, L, Gebhardt, C, Goto, K, Jones, H, Kring, DA, Le Ber, E, Lofi, J, Long, X, Lowery, C, Mellett, C, Ocampo-Torres, R, Osinski, GR, Perez-Cruz, L, Pickersgill, A, Poelchau, M, Rae, A, Rasmussen, C, Rebolledo-Vieyra, M, Riller, U, Sato, H, Schmitt, DR, Smit, J, Tikoo, S, Tomioka, N, Urrutia-Fucugauchi, J, Whalen, M, Wittmann, A, Yamaguchi, KE & Zylberman, W 2016, 'The formation of peak rings in large impact craters', Science, vol. 354, no. 6314, pp. 878-882. https://doi.org/10.1126/science.aah6561

TY - JOUR

T1 - The formation of peak rings in large impact craters

AU - Morgan, Joanna V.

AU - Gulick, Sean P. S.

AU - Bralower, Timothy

AU - Chenot, Elise

AU - Christeson, Gail

AU - Claeys, Philippe

AU - Cockell, Charles

AU - Collins, Gareth S.

AU - Coolen, Marco J. L.

AU - Ferriere, Ludovic

AU - Gebhardt, Catalina

AU - Goto, Kazuhisa

AU - Jones, Heather

AU - Kring, David A.

AU - Le Ber, Erwan

AU - Lofi, Johanna

AU - Long, Xiao

AU - Lowery, Christopher

AU - Mellett, Claire

AU - Ocampo-Torres, Ruben

AU - Osinski, Gordon R.

AU - Perez-Cruz, Ligia

AU - Pickersgill, Annemarie

AU - Poelchau, Michael

AU - Rae, Auriol

AU - Rasmussen, Cornelia

AU - Rebolledo-Vieyra, Mario

AU - Riller, Ulrich

AU - Sato, Honami

AU - Schmitt, Douglas R.

AU - Smit, Jan

AU - Tikoo, Sonia

AU - Tomioka, Naotaka

AU - Urrutia-Fucugauchi, Jaime

AU - Whalen, Michael

AU - Wittmann, Axel

AU - Yamaguchi, Kosei E.

AU - Zylberman, William

PY - 2016/11/18

Y1 - 2016/11/18

N2 - 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.

AB - 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.

KW - CRUSTAL STRUCTURE

KW - CHICXULUB CRATER

KW - BASIN FORMATION

KW - ASYMMETRY

KW - MODEL

KW - GRAVITY

KW - DENSITY

KW - QUARTZ

U2 - 10.1126/science.aah6561

DO - 10.1126/science.aah6561

M3 - Article

SN - 0036-8075

VL - 354

SP - 878

EP - 882

JO - Science

JF - Science

IS - 6314

ER -

The formation of peak rings in large impact craters

Abstract

Keywords / Materials (for Non-textual outputs)

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Charles Cockell

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