TY - JOUR
T1 - Shaping of the Present-Day Deep Biosphere at Chicxulub by the Impact Catastrophe That Ended the Cretaceous
AU - IODP-ICDP Expedition 364 Scientists
AU - Cockell, Charles S.
AU - Schaefer, Bettina
AU - Wuchter, Cornelia
AU - Coolen, Marco J.L.
AU - Grice, Kliti
AU - Schnieders, Luzie
AU - Morgan, Joanna V.
AU - Gulick, Sean P.S.
AU - Wittmann, Axel
AU - Lofi, Johanna
AU - Christeson, Gail L.
AU - Kring, David A.
AU - Whalen, Michael T.
AU - Bralower, Timothy J.
AU - Osinski, Gordon R.
AU - Claeys, Philippe
AU - Kaskes, Pim
AU - de Graaff, Sietze J.
AU - Déhais, Thomas
AU - Goderis, Steven
AU - Hernandez Becerra, Natali
AU - Nixon, Sophie
N1 - Publisher Copyright:
© Copyright © 2021 Cockell, Schaefer, Wuchter, Coolen, Grice, Schnieders, Morgan, Gulick, Wittmann, Lofi, Christeson, Kring, Whalen, Bralower, Osinski, Claeys, Kaskes, de Graaff, Déhais, Goderis, Hernandez Becerra, Nixon and IODP-ICDP Expedition 364 Scientists.
PY - 2021/6/24
Y1 - 2021/6/24
N2 - We report on the effect of the end-Cretaceous impact event on the present-day deep microbial biosphere at the impact site. IODP-ICDP Expedition 364 drilled into the peak ring of the Chicxulub crater, México, allowing us to investigate the microbial communities within this structure. Increased cell biomass was found in the impact suevite, which was deposited within the first few hours of the Cenozoic, demonstrating that the impact produced a new lithological horizon that caused a long-term improvement in deep subsurface colonization potential. In the biologically impoverished granitic rocks, we observed increased cell abundances at impact-induced geological interfaces, that can be attributed to the nutritionally diverse substrates and/or elevated fluid flow. 16S rRNA gene amplicon sequencing revealed taxonomically distinct microbial communities in each crater lithology. These observations show that the impact caused geological deformation that continues to shape the deep subsurface biosphere at Chicxulub in the present day.
AB - We report on the effect of the end-Cretaceous impact event on the present-day deep microbial biosphere at the impact site. IODP-ICDP Expedition 364 drilled into the peak ring of the Chicxulub crater, México, allowing us to investigate the microbial communities within this structure. Increased cell biomass was found in the impact suevite, which was deposited within the first few hours of the Cenozoic, demonstrating that the impact produced a new lithological horizon that caused a long-term improvement in deep subsurface colonization potential. In the biologically impoverished granitic rocks, we observed increased cell abundances at impact-induced geological interfaces, that can be attributed to the nutritionally diverse substrates and/or elevated fluid flow. 16S rRNA gene amplicon sequencing revealed taxonomically distinct microbial communities in each crater lithology. These observations show that the impact caused geological deformation that continues to shape the deep subsurface biosphere at Chicxulub in the present day.
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UR - http://www.scopus.com/inward/citedby.url?scp=85109762410&partnerID=8YFLogxK
U2 - 10.3389/fmicb.2021.668240
DO - 10.3389/fmicb.2021.668240
M3 - Article
C2 - 34248877
AN - SCOPUS:85109762410
SN - 1664-302X
VL - 12
JO - Frontiers in Microbiology
JF - Frontiers in Microbiology
M1 - 668240
ER -