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Probing the hydrothermal system of the Chicxulub impact crater Kring, D.A.; Tikoo, S.M.; Schmieder, M.; Riller, U.; Rebolledo-Vieyra, M.; Simpson, S.L.; Osinski, G.R.; Gattacceca, J.; Wittmann, A.; Verhagen, C.M.; Cockell, C.S.; Coolen, M.J.L.; Longstaffe, F.J.; Gulick, S.P.S.; Morgan, J.V.; Bralower, T.J.; Chenot, E.; Christeson, G.L.; Claeys, P.; Ferrière, L.; Gebhardt, C.; Goto, K.; Green, S.; Jones, H.; Lofi, J.; Lowery, C.M.; Ocampo-Torres, R.; Perez-Cruz, L.; Pickersgill, A.E.; Poelchau, M.H.; Rae, A.S.P.; Rasmussen, C.; Sato, H.; Smit, J.; Tomioka, N.; Urrutia-Fucugauchi, J.; Whalen, M.T.; Xiao, L.; Yamaguchi, K.E. (2020). Probing the hydrothermal system of the Chicxulub impact crater. Science Advances 6(22): eaaz3053. https://hdl.handle.net/10.1126/sciadv.aaz3053 In: Science Advances. AAAS: New York. e-ISSN 2375-2548

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Beschikbaar in	Auteurs
VLIZ: Open access 361747 [ download pdf ]

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Auteurs		Top
Kring, D.A. Tikoo, S.M. Schmieder, M. Riller, U. Rebolledo-Vieyra, M. Simpson, S.L. Osinski, G.R. Gattacceca, J. Wittmann, A. Verhagen, C.M. Cockell, C.S. Coolen, M.J.L. Longstaffe, F.J.	Gulick, S.P.S. Morgan, J.V. Bralower, T.J. Chenot, E. Christeson, G.L. Claeys, P. Ferrière, L. Gebhardt, C. Goto, K. Green, S. Jones, H. Lofi, J. Lowery, C.M.	Ocampo-Torres, R. Perez-Cruz, L. Pickersgill, A.E. Poelchau, M.H. Rae, A.S.P. Rasmussen, C. Sato, H. Smit, J. Tomioka, N. Urrutia-Fucugauchi, J. Whalen, M.T. Xiao, L. Yamaguchi, K.E.

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Abstract

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.

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