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Browsing LPI Contributions by Author "Wittmann, Axel 1971-"

Browsing LPI Contributions by Author "Wittmann, Axel 1971-"

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  • Globally distributed iridium layer preserved within the Chicxulub impact structure 
    Goderis, Steven; Sato, Honami; Ferrière, Ludovic; Schmitz, Birger; Kaskes, Pim; Vellekoop, Johan; Wittmann, Axel 1971-; Schulz, Toni 1975-; Chernonozhkin, Stepan M.; Claeys, Philippe, 1961-; Graaff, Sietze J. de; Déhais, Thomas; Winter, Niels J. de; Elfman, Mikael; Feignon, Jean-Guillaume; Ishikawa, Akira; Koeberl, Christian, 1959-; Kristiansson, Per; Neal, Clive R.; Owens, Jeremy D.; Schmieder, Martin, 1978-; Sinnesael, Matthias; Vanhaecke, Frank, 1966-; Van Malderen, Stijn J. M.; Bralowerv, Timothy J.; Gulick, Sean P. S.; Kring, David A. (David Allen); Lowery, Christopher M.; Morgan, Joanna V.; Smit, Jan; Whalen, Michael T.; IODP-ICDP Expedition 364 Scientists; https://orcid.org/0000-0002-1458-5148; https://orcid.org/0000-0002-3440-6282; https://orcid.org/0000-0003-0705-3490 (American Association for the Advancement of Science, 2021-02-24)
    Here, we report new data from four independent laboratories that reveal a positive iridium anomaly within the peak-ring sequence of the Chicxulub impact structure, in drill core recovered by IODP-ICDP Expedition 364. The ...
  • The Habitat of the Nascent Chicxulub Crater 
    Bralower, Timothy J.; Cosmidis, Julie; Fantle, M. S.; Lowery, Christopher M.; Passey, B. H.; Gulick, Sean P. S.; Morgan, V. J.; Vajda, V.; Whalen, Michael T.; Wittmann, Axel 1971-; Artemieva, Natalia A.; Farley, K.; Goderis, Steven; Hajek, E.; Heaney, P. J.; Kring, David A. (David Allen); Lyons, S. L.; Rasmussen, Cornelia; Sibert, E.; Rodríguez-Tovar, Francisco J.; Turner‐Walker, G.; Zachos, James C.; Carte, J.; Chen, S. A.; Cockell, Charles; Coolen, Marco J. L.; Freeman, K. H.; Garber, J.; Gonzalez, M.; Gray, J. L.; Grice, Kliti; Jones, Heather L.; Schaefer, Bettina; Smit, Jan; Tikoo, Sonia M.; https://orcid.org/0000-0002-3440-6282 (Wiley, 2020-11-24)
    The newly formed Chicxulub crater was rapidly filled by seawater then disturbed by tsunami and seiche waves. Sedimentary layers deposited as wave energy declined provide a unique window into the environment of the nascent ...
  • The importance of (Noachian) impact craters as windows to the subsurface and as potential hosts of life 
    Schwenzer, Susanne Petra; https://orcid.org/0000-0002-9608-0759; Abramov, Oleg; Allen, Carlton; Clifford, Stephen Mark, 1952-; Filiberto, Justin; https://orcid.org/0000-0001-5058-1905; Kring, David A. (David Allen); Lasue, Jeremie; https://orcid.org/0000-0001-9082-4457; McGovern, Patrick J. (Geophysicist); Newsom, Horton E.; Treiman, Allan H.; https://orcid.org/0000-0002-8073-2839; Wittmann, Axel 1971-; https://orcid.org/0000-0001-7572-0801; https://orcid.org/0000-0001-9647-3096; https://orcid.org/0000-0002-2884-2299; https://orcid.org/0000-0002-3440-6282; https://orcid.org/0000-0003-0771-1713 (2009)
    Noachian impact craters are important exploration targets, providing subsurface access, data on crucial geological processes, and warm, water-rich environments possibly conducive to life.
  • Ocean resurge‑induced impact melt dynamics on the peak‑ring of the Chicxulub impact structure, Mexico 
    Schulte, Felix M.; Wittmann, Axel 1971-; Jung, Stefan; Morgan, Joanna V.; Gulick, Sean P. S.; Kring, David A. (David Allen); Grieve, Richard A. F.; Osinski, Gordon R.; Riller, Ulrich; IODP-ICDP Expedition 364 Science Party; https://orcid.org/0000-0002-3440-6282 (Springer, 2021-03-18)
    Core from Hole M0077 from IODP/ICDP Expedition 364 provides unprecedented evidence for the physical processes in effect during the interaction of impact melt with rock-debris-laden seawater, following a large meteorite ...
  • Shaping of the Present-Day Deep Biosphere at Chicxulub by the Impact Catastrophe That Ended the Cretaceous 
    Cockell, Charles; Schaefer, Bettina; Wuchter, Cornelia; Coolen, Marco J. L.; Grice, Kliti; Schnieders, Luzie; Morgan, Joanna V.; Gulick, Sean P. S.; Wittmann, Axel 1971-; Lofi, Johanna; Christeson, Gail L.; Kring, David A. (David Allen); Whalen, Michael T.; Bralower, Timothy J.; Osinski, Gordon R.; Claeys, Philippe, 1961-; Kaskes, Pim; Graaff, Sietze J. de; Déhais, Thomas; Goderis, Steven; Hernández-Becerra, Natali; Nixon, Sophie; IODP-ICDP Expedition Scientists; https://orcid.org/0000-0002-3440-6282 (2021-06-24)
    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 ...
  • Shock impedance amplified impact deformation of zircon in granitic rocks from the Chicxulub impact crater 
    Wittmann, Axel 1971-; Cavosie, Aaron J.; Timms, Nicholas E.; Ferrière, Ludovic; Rae, Auriol S. P.; Rasmussen, Cornelia; Ross, Catherine; Stockli, Daniel; Schmieder, Martin, 1978-; Kring, David A. (David Allen); Zhao, Jiawei; Morgan, Joanna V.; Gulick, Sean P. S.; IODP-ICDP Expedition 364 Scientists; https://orcid.org/0000-0002-1458-5148; https://orcid.org/0000-0002-3440-6282 (Elsevier, 2021-12-01)
    To resolve issues with the shock petrographic use of zircon, we classified impact deformation features in 429 zircon grains in a continuous drill core of uplifted, granitic bedrock in the peak ring of the 200-km-diameter ...
  • Significance of Secondary Fe-Oxide and Fe-Sulfide Minerals in Upper Peak Ring Suevite from the Chicxulub Impact Structure 
    Kring, David A. (David Allen); Verhagen, Christina M.; Jung, Ji-In; Tikoo, Sonia M.; Wittmann, Axel 1971-; Brachfeld, Stefanie; Wu, Laying; Burns, Dale H.; Gulick, Sean P. S. (MDPI, 2023-03-02)
    The suevite (polymict melt rock-bearing breccia) composing the upper peak ring of the Chicxulub impact crater is extremely heterogeneous, containing a combination of relict clasts and secondary minerals. Using scanning ...
  • Winding down the Chicxulub impact: The transition between impact and normal marine sedimentation near ground zero 
    Whalen, Michael T.; Lowery, Christopher M.; Bralower, Timothy J.; Gulick, Sean P. S.; Morgan, Joanna V.; Grice, Kliti; Schaefer, Bettina; Smit, Jan; Ormö, Jens; Wittmann, Axel 1971-; Kring, David A. (David Allen); Lyons, Shelby; Goderis, Steven; IODP-ICDP Expedition 364 Scientists; https://orcid.org/0000-0002-3440-6282 (Elsevier, 2020-12)
    The upper suevite, Transitional Unit, and overlying green marlstone on the peak ring of the Chicxulub impact structure at Site M0077 appear to record a complete transition from resurge deposits into post-impact sediments. ...

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