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Article Dans Une Revue Science Advances Année : 2020

Probing the hydrothermal system of the Chicxulub impact crater

1 LPI - Lunar and Planetary Institute [Houston]
2 Department of Earth and Planetary Sciences [Piscataway]
3 Fraunhofer IOSB - Fraunhofer Institute of Optronics, System Technologies and Image Exploitation
4 UHH - Universität Hamburg
5 Unidad de Ciencias del Agua
6 CPSX - Centre for Planetary Science and Exploration [London, ON]
7 CEREGE - Centre européen de recherche et d'enseignement des géosciences de l'environnement
8 SUPA School of Physics and Astronomy [Edinburgh]
9 UWO - University of Western Ontario
10 Department of Geological Sciences [Austin]
11 Imperial College London
12 Penn State Department of Geosciences
13 GeoRessources
14 IG - Institute of Geophysics [Austin]
15 VUB - Vrije Universiteit Brussel
16 NHM - Natural History Museum [Vienna]
17 AWI - Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine
18 International Research Institute of Disaster Science
19 British Geological Survey [Edinburgh]
20 Géosciences Montpellier
21 ICPEES - Institut de chimie et procédés pour l'énergie, l'environnement et la santé
22 Instituto de Geofísica
23 School of Geographical and Earth Sciences
24 University of Freiburg [Freiburg]
25 Department of Earth Science and Engineering [Imperial College London]
26 Department of Geology and Geophysics
27 JAMSTEC - Japan Agency for Marine-Earth Science and Technology
28 FALW - Faculty of Earth and Life Sciences [Amsterdam]
29 Kochi Institute for Core Sample Research
30 Department of Chemistry
Ulrich Riller
Sarah Simpson
  • Fonction : Auteur
Axel Wittmann
Christina Verhagen
  • Fonction : Auteur
Marco Coolen
  • Fonction : Auteur
Joanna Morgan
Elise Chenot
Gail Christeson
Philippe Claeys
Ludovic Ferrière
Heather Jones
  • Fonction : Auteur
Johanna Lofi
Michael Poelchau
Jan Smit
Michael Whalen
  • Fonction : Auteur
Long Xiao
  • Fonction : Auteur

Résumé

The ~180-km-diameter Chicxulub peak-ring crater and ~240-km multiring basin, produced by the impact that terminated the Cretaceous, is the largest remaining intact impact basin on Earth. International Ocean Discovery Program (IODP) and International Continental Scientific Drilling Program (ICDP) Expedition 364 drilled to a depth of 1335 m below the sea floor into the peak ring, providing a unique opportunity to study the thermal and chemical modification of Earth’s crust caused by the impact. The recovered core shows the crater hosted a spatially extensive hydrothermal system that chemically and mineralogically modified ~1.4 × 105 km3 of Earth’s crust, a volume more than nine times that of the Yellowstone Caldera system. Initially, high temperatures of 300° to 400°C and an independent geomagnetic polarity clock indicate the hydrothermal system was long lived, in excess of 106 years.

Domaines

Planétologie
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Dates et versions

hal-02870526 , version 1 (31-05-2021)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

David Kring, Sonia Tikoo, Martin Schmieder, Ulrich Riller, Mario Rebolledo-Vieyra, et al.. Probing the hydrothermal system of the Chicxulub impact crater. Science Advances , 2020, 6 (22), ⟨10.1126/sciadv.aaz3053⟩. ⟨hal-02870526⟩
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