M
Michael H. Poelchau
Researcher at University of Freiburg
Publications - 79
Citations - 1838
Michael H. Poelchau is an academic researcher from University of Freiburg. The author has contributed to research in topics: Impact crater & Hypervelocity. The author has an hindex of 24, co-authored 76 publications receiving 1513 citations. Previous affiliations of Michael H. Poelchau include Museum für Naturkunde & Humboldt University of Berlin.
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Journal ArticleDOI
The formation of peak rings in large impact craters
Joanna Morgan,Sean P. S. Gulick,Timothy J. Bralower,Elise Chenot,Gail L. Christeson,Philippe Claeys,Charles S. Cockell,Gareth S. Collins,Marco J. L. Coolen,Ludovic Ferrière,Catalina Gebhardt,Kazuhisa Goto,Heather L. Jones,David A. Kring,Erwan Le Ber,Johanna Lofi,Xiao Long,Christopher M. Lowery,C.L. Mellett,Rubén Ocampo-Torres,Gordon R. Osinski,Ligia Pérez-Cruz,Annemarie E. Pickersgill,Michael H. Poelchau,Auriol S. P. Rae,Cornelia Rasmussen,Mario Rebolledo-Vieyra,Ulrich Riller,Honami Sato,Douglas R. Schmitt,Jan Smit,Sonia M. Tikoo,Naotaka Tomioka,Jaime Urrutia-Fucugauchi,Michael T. Whalen,Axel Wittmann,Kosei E. Yamaguchi,Kosei E. Yamaguchi,W. Zylberman,W. Zylberman +39 more
TL;DR: The only known impact structure on Earth with an unequivocal peak ring is Chicxulub as discussed by the authors, but it is buried and only accessible through drilling, and it is not accessible to the public.
Journal ArticleDOI
Structural geology of impact craters
TL;DR: The formation of impact craters is a highly dynamic and complex process that subjects the impacted target rocks to numerous types of deformation mechanisms Understanding and interpreting these styles of micro-, meso-and macroscale deformation has proved itself challenging for the field of structural geology as discussed by the authors.
Journal ArticleDOI
Rapid recovery of life at ground zero of the end-Cretaceous mass extinction
Christopher M. Lowery,Timothy J. Bralower,Jeremy D. Owens,Francisco J. Rodríguez-Tovar,Heather L. Jones,Jan Smit,Michael T. Whalen,Phillipe Claeys,Kenneth A. Farley,Sean P. S. Gulick,Joanna Morgan,S. Green,Elise Chenot,Gail L. Christeson,Charles S. Cockell,Marco J. L. Coolen,Ludovic Ferrière,Catalina Gebhardt,Kazuhisa Goto,David A. Kring,Johanna Lofi,Rubén Ocampo-Torres,Ligia Pérez-Cruz,Annemarie E. Pickersgill,Michael H. Poelchau,Auriol S. P. Rae,Cornelia Rasmussen,Mario Rebolledo-Vieyra,Ulrich Riller,Honami Sato,Sonia M. Tikoo,Naotaka Tomioka,Jaime Urrutia-Fucugauchi,Johan Vellekoop,Axel Wittmann,Long Xiao,Kosei E. Yamaguchi,Kosei E. Yamaguchi,W. Zylberman +38 more
TL;DR: Micro- and nannofossil, trace fossil and geochemical evidence from the Chicxulub impact crater demonstrates that proximity to the asteroid impact site did not determine rates of recovery of marine ecosystems after the end-Cretaceous mass extinction.
Journal ArticleDOI
The MEMIN research unit: Scaling impact cratering experiments in porous sandstones
TL;DR: In this article, a series of impact experiments into porous wet and dry sandstone targets were conducted, yielding craters with diameters between 3.9 and 40 cm, with varying velocities of 2.5 to 7.8 km/s−1.
Journal ArticleDOI
Probing the hydrothermal system of the Chicxulub impact crater
David A. Kring,Sonia M. Tikoo,Martin Schmieder,Ulrich Riller,M. Rebolledo-Vieyra,S. L. Simpson,Gordon R. Osinski,Jérôme Gattacceca,Axel Wittmann,Christina M. Verhagen,Charles S. Cockell,Marco J. L. Coolen,Fred J. Longstaffe,Sean P. S. Gulick,Joanna Morgan,Timothy J. Bralower,Elise Chenot,Gail L. Christeson,Philippe Claeys,Ludovic Ferrière,Catalina Gebhardt,Kazuhisa Goto,S. Green,Heather L. Jones,Johanna Lofi,Christopher M. Lowery,Rubén Ocampo-Torres,Ligia Pérez-Cruz,Annemarie E. Pickersgill,Michael H. Poelchau,Auriol S. P. Rae,Auriol S. P. Rae,Cornelia Rasmussen,Cornelia Rasmussen,Honami Sato,Jan Smit,Naotaka Tomioka,Jaime Urrutia-Fucugauchi,Michael T. Whalen,Long Xiao,Kosei E. Yamaguchi +40 more
TL;DR: The recovered core shows the Chicxulub 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.