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 Research Report for 2019

Professur für Allgemeine Geologie

Prof. Dr. Thomas Kenkmann

Albertstr. 23b
79104 Freiburg
Tel: 203-6494 Fax: 203-6496
http://www.geology.uni-freiburg.de


Scientific Employees

  • Prof. Dr. Thomas Kenkmann, Leitung, Leiter Geologie, Professur für Geologie
  • Dr. Michael H. Poelchau, Leitender wissenschaftlicher Mitarbeiter
  • Dr. Heike Ulmer, Leitende wissenschaftliche Mitarbeiterin
  • Dr. Vivek Padmanabha, Postdoc (m/w)
  • Dr. Gerwin Wulf , Leitender wissenschaftlicher Mitarbeiter
  • Dr. Amar Agarwal, Alexander von Humboldt-Stipendiat
  • Dr. Matthias Ebert, Postdoc (m/w)
  • Dagmar Flemming, Präparatorin
  • Prof. Dr. Andreas Hoppe, Honorar-Professor
  • Alexa Pietrek, Doktorand (m/w)
  • Dr. Auriol Rae, Postdoc (m/w)
  • Prof. Dr. Frank Schäfer, Honorarprofessor
  • Dr. Zhiyong Xiao, Gastwissenschaftler China Scholarship Council
Entries in "Who is Who"

Main Research

  • Experimentelle Gesteinsdeformation
  • Hochdynamische Geoprozesse
  • Planetare Geologie
  • Stoßwellenmetamorphose
  • Strukturgeologie von Impaktkratern

Scientific and Research Projects


  • Atlas of the Terrestrial Impact Craters
    • Project Manager: Kenkmann T
    • Start/End of project: 01.06.2017 until 30.06.2019
    • Project Details
  • Peak ring formation at Chicxulub: Unraveling its deformation path and rock mechanical behavior
    • Project Manager: Poelchau M H, Kenkmann T
    • Start/End of project: 01.10.2017 until 01.09.2020
    • Project Details
  • Fast deformation of rocks: a comparison of brittle failure in seismogenic fault zones, impact craters, and Split-Hopkinson pressure bar experiments
    • Project Manager: Kenkmann T, Agarwal A
    • Start/End of project: 01.02.2017 until 31.05.2019
    • Project Details
  • Strain-rate dependent brittle deformation of rocks during impact cratering: Linking mechanical data and microstructure
    • Project Manager: Kenkmann T, Schäfer F
    • Start/End of project: 11.06.2018 until 10.06.2021
    • Project Details
  • Supershear rupturing at the Düzce fault, North Anatolian fault zone, Turkey
    • Project Manager: Kenkmann T
    • Start/End of project: 01.05.2018 until 30.04.2020
    • Project Details
  • The Douglas impact crater strewn field
    • Project Manager: Kenkmann T, Sundell, K. (Casper College WY, USA), Cook, D. (Colorado Springs)
    • Start/End of project: since 2018
    • Project Details
  • The formation of Wrinkle Ridges on Mars
    • Project Manager: Kenkmann T
    • Start/End of project: 01.11.2019 until 31.10.2022
    • Project Details

Scientific publications

Journal Articles:
  • Agarwal A, Kontny A, Poelchau M H, Kenkmann T: Variation in magnetic fabrics due to experimental impact cratering. J Geophys Res-sol Ea, 2019. : https://doi.org/10.1029/2018JB017128
  • Alva-Valdivia LM, Agarwal A, García-Amador B, Morales-Barrera W, Agarwal KK, Rodríguez S, Gonzalez-Rangel JA: Paleomagnetism and tectonics from the late Pliocene to late Pleistocene in the Xalapa monogenetic volcanic field, Veracruz, Mexico. Geol Soc Am Bull, 2019. : https://doi.org/10.1130/B32006.1
  • Alva-Valdivia LM, Rodríguez-Trejo A, Vidal-Solano JR, Paz-Moreno F, Agarwal A: Emplacement temperature resolution and age determination of Cerro Colorado tuff ring by paleomagnetic analysis, El Pinacate Volcanic Field, Sonora, Mexico. Journal of Volcanology and Geothermal Research, 2019; 369: 145-154. : https://doi.org/10.1016/j.jvolgeores.2018.11.012
  • Alva-Valdivia L M, Rodríguez-Trejo A, Morales J, González-Rangel J A, Agarwal A: Paleomagnetism and age constraints of historical lava flows from the El Jorullo volcano, Michoacán, Mexico. J S Am Earth Sci, 2019; 93: 439-448. : https://doi.org/10.1016/j.jsames.2019.05.016
  • Arp G, Reimer A, Simon K, Sturm S, Wilk J, Kruppa C, Hecht L, Hansen B T, Pohl J, Reimold W U, Kenkmann T, Jung D: The Erbisberg drilling 2011: Implications for the structure and postimpact evolution of the inner ring of the Ries impact crater. Meteorit Planet Sci, 2019. : https://doi.org/10.1111/maps.13293 (in Druck)
  • El Kerni H, Chennaoui Aoudjehane, H, Baratoux D, Aoudjehane M, Charrière A, Ibouh H, Rochette P, Quesnel Y, Uehara M, Kenkmann T, Wulf G, Poelchau M H, Nguyen V B, Aboulahris M, Makhoukhi S, Aumaître G, Bourlès D, Keddadouche K: Geological and geophysical studies of the Agoudal impact structure (Central High Atlas, Morocco): New evidence for crater size and age. Meteorit Planet Sci, 2019. : https://doi.org/10.1111/maps.13347
  • Hergarten S, Kenkmann T: Long-term erosion rates as a function of climate derived from the impact crater inventory. Earth Surf Dynam, 2019; 7: 459-473. : https://doi.org/10.5194/esurf-7-459-2019
  • Hergarten S, Wulf G, Kenkmann T: Comment on “Earth and Moon impact flux increased at the end of the Paleozoic” Science, 2019; 365 (6450). : http://dx.doi.org/10.1126/science.aaw7471
  • Joshi G, Agarwal KK, Agarwal A, Vidal-Solano JR: Uranium enrichment at North Almora Thrust Zone, Kumaun Lesser Himalaya, Uttarakhand, India. J Earth Syst Sci, 2019. : https://doi.org/10.1007/s12040-019-1245-z
  • Rae A S P, Collins G S, Poelchau M, Riller U, Davison T M, Grieve R A, Osinski G R, Morgan J V, ODP-ICDP Expedition 364, Scientists: Stress‐Strain Evolution During Peak‐Ring Formation: A Case Study of the Chicxulub Impact Structure. J Geophys Res-planet, 2019; 124 (2): 396-417. : https://doi.org/10.1029/2018JE005821
  • Timms N E, Pearce M A, Erickson M T, Cavosie A J, Rae A S P, Wheeler J, Wittmann A, Ferrière L, Poelchau M H, Tomioka N, Collins G S, Gulick S P S, Rasmussen C, Morgan J V, IODP-ICDP Expedition 364, Scientists: New shock microstructures in titanite (CaTiSiO5) from the peak ring of the Chicxulub impact structure, Mexico. Contrib Mineral Petr, 2019; 174 (38). : https://doi.org/10.1007/s00410-019-1565-7
  • Wulf G, Hergarten S, Kenkmann T: Combined remote sensing analyses and landform evolution modeling reveal the terrestrial Bosumtwi impact structure as a Mars-like rampart crater. Earth and Planetary Science Letters, 2019; 506: 209-220. : https://doi.org/10.1016/j.epsl.2018.11.009
Conference Papers:
  • Agarwal A, Kontny A, Poelchau M H, Kenkmann T: Effects of Target Layering on Subsurface Deformation Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5058]).
  • Agarwal A, Poelchau M H, Kenkmann T: Kinked biotite as a strain marker in experimental impact craters in gneiss. 2019 (50th Lunar and Planetary Science Conference. LPI Contrib. No. 2132. Abstract #2540.).
  • Cox M A, Cavosie A J, Poelchau M H, Kenkmann T, Bland P A, Miljković K: Shock-Deformation Microstructures in Xenotime from the Spider Impact Structure, Western Australia. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5092]).
  • Ebert M, Poelchau M H, Kenkmann T: Kinked Biotite as a Stress Orientation Indicator in Chicxulub’s Peak Ring. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5067]).
  • Ebert M, Poelchau M H, Kenkmann T, Ritu S: eather features in shocked quartz as a tool to constrain deformation in impact craters: a case study of Chicxulub’s peak ring. 2019 (0th Lunar and Planetary Science Conference. LPI Contrib. No. 2132. Abstract #2465.).
  • El Kerni H, Chennaoui Aoudjehane H, Baratoux D, Kenkmann T, Wulf G, Poelchau M, Aoudjehane M: The size and the center of the Agoudal impact structure (central high atlas, Morocco) 2019 (50th Lunar and Planetary Science Conference. LPI Contrib. No. 2132. Abstract #1332).
  • Gärtner M, Gulde M, Hergarten S, Ebert M, Kenkmann T, Putzar R, Schäfer F: The First Microsecond of an Hypervelocity Impact. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5065]).
  • Kenkmann T: Update of the Terrestrial Impact Crater Record: Crater Discovery Statistics, Size, and Age Frequency Distributions. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019 : Abstract [#5013]).
  • Kenkmann T, Haines P W, Sweet I, Mitchell K: Shock Deformation in the Cleanskin Impact Structure, Northern Territory, Australia. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5014]).
  • Kenkmann T, Wulf G, Agarwal A: India´s Third Impact Crater: Ramgarh, Rajasthan. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5007]).
  • Lambert P, 61 co-authors: The Rochechouart 2017-cores rescaled: major features. 2019 (50th Lunar and Planetary Science Conference. LPI Contrib. No. 2132. Abstract #2005.).
  • McCall N, Gulick S, Rae A, Poelchau M H, Riller U, Morgan J, Lofi J: Orientation of Fractures in the Chicxulub Peak Ring. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5097]).
  • Rae A S P: Practical Experiences of Shock Barometry. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5060]).
  • Rae A S P, Collins G S, Morgan J V, Poelchau M H, Riller U, Timms N., Cavosie A, Salge T, Davison TM, Lofi J, Ferrière L, McCall N, Christeson G L, Grieve R A F, Osinski G R, Gulick S P S: Observational Constraints on Numerical Models of Peak-Ring Formation. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5059]).
  • Rae A S P, Kenkmann T, Padmanabha V, Schäfer F, Poelchau M H, Agarwal A, Dörfler M, Müller L: Strain-Rate Dependent Brittle Deformation in Rocks. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5057]).
  • Schulze T, Kenkmann T, Poelchau M H, Sundell K A, Cook D: Douglas Impact Crater Strewn Field, WY, USA: A Progress Report. Large Meteorite Impacts and Planetary Evolution VI 2019 (University of Brasília, Brasília, Brazil September 30-October 3, 2019: Abstract [#5036]).
  • Wulf G, Hergarten S, Kenkmann T: Remote Sensing Analysis and Landscape Evolution Modeling of the Bosumtwi Impact Structure, Ghana: Indications for Ejecta Ramparts. 2019 (50th Lunar and Planetary Science Conference, #1624.).

Special Scientific Activities

Preise / Ehrungen:
  • Prof. Dr. Thomas Kenkmann: Barringer Medal and Award, The Barringer Medal recognizes outstanding work in the field of impact cratering and/or work that has led to a better understanding of impact phenomena.[1] The Barringer Medal and Award were established to honor the memory of D. Moreau Barringer Sr. and his son D. Moreau Barringer Jr. and are sponsored by the Barringer Crater Company. The medal is awarded by the Meteoritical Society., Meteoritical Society, 01.01.2018.
Invited Speech:
  • Prof. Dr. Thomas Kenkmann: Meteoritenkrater auf Erde und Mond - Ursachen und Folgen kosmischer Kollisionen (invited speech), Planetarium Freiburg, Spezial-Programm, 16.05.2019.
Herausgeberschaften:
  • Dr. Michael H. Poelchau: Associate editor der Zeitschrift " Meteoritics and Planetary Science, seit 2014.
Wissenschaftliche Beratung / Gutachtertätigkeiten:
  • Prof. Dr. Thomas Kenkmann: Gutachter für die wissenschaftlichen Journale: “Nature”, “Earth Science Reviews” ,“Earth and Planetary Science Letters”, “Geology”, “Journal of Structural Geology”, “Meteoritics and Planetary Science”, “Lecture Notes in Earth Science“, “European Journal of Mineralogy“, “Impact Studies Series”, “GSA Bulletin”, “GSA Special Paper”, seit 2007.
  • Prof. Dr. Thomas Kenkmann: Gutachter der DFG, seit 2007.
  • Prof. Dr. Thomas Kenkmann: Gutachter für die Alexander von Humboldt-Stiftung und den DAAD , seit 2010.
  • Prof. Dr. Thomas Kenkmann: Member of the Science Advisary Group (SAC) of the International Continental Deep Drilling Project (ICDP), 01.10.2018 bis 30.09.2022.

Scientific Dissertations

Dissertations
  • Alexa Pietrek: Morphometric characterization of longitudinal striae: constraints on their formation and implcations for the emplacement mechanism of landslides and layered ejecta crater deposits on Mars. (Advisor Prof. Dr. Stefan Hergarten; Prof. Dr. Thomas Kenkmann, Supervisor Prof. Dr. Thomas Kenkmann, Secondary Supervisor Prof. Dr. Kai Wünnemann), 2019.
  • Frank Sommer: Particles in the air (Advisor Prof. Dr. Thomas Kenkmann, Supervisor Prof. Dr. Thomas Kenkmann, Secondary Supervisor Prof. Dr. Stefan Hergarten), 2019.
Master
  • Attah Alfred Atai Okanebu: Sedimentology, petrography, and hydrogeological properties of the Buntsandstein in the Gaimühle drill core (1m-123m). (Advisor Dr. Johannes Miocic, Supervisor Dr. Johannes Miocic, Secondary Supervisor Prof. Dr. Thomas Kenkmann), 2019.
  • Bennet Schuster: Rock Deformation and Fabric of the Foiana Fault Zone, Italy (Advisor Prof. Dr. Thomas Kenkmann, Supervisor Prof. Dr. Thomas Kenkmann, Secondary Supervisor Prof. Dr. Stefan Hergarten), 2019.
  • Ganesh R G: Filling voids in a digital elevation model using numerical solution of flexure bending method. (Advisor Hergarten S, Supervisor Hergarten S, Secondary Supervisor Wulf G), 2019.
  • Julia Rudmann: Tectonic activity in the crystalline basement and the foothill zone of the Black Forest-Markgräflerland (Advisor Prof. Dr. Thomas Kenkmann, Supervisor Prof. Dr. Thomas Kenkmann, Secondary Supervisor Dr. Malte Junge), 2019.
  • Muhamad Ihsan Khan: Sedimentology, petrography, and hydrogeological properties of the Buntsandstein in the Gaimühle drill core (123m-244m). (Advisor Dr. Johannes Miocic, Supervisor Dr. Johannes Miocic, Secondary Supervisor Prof. Dr. Thomas Kenkmann), 2019.
  • Nikitina V: Mapping of naturally occurring As, Cr, Cu, Ni, Pb and Zn in the rocks of southern Black Forest and adjacent sediment cover. (Advisor Siebel W, Supervisor Siebel W, Secondary Supervisor Wulf G), 2019.
  • Oguzcan Karagöz: Morphometrical and kinematic analyses of wrinkle ridges on Mars (Advisor Prof. Dr. Thomas Kenkmann, Supervisor Prof. Dr. Thomas Kenkmann, Secondary Supervisor Prof. Dr. Stefan Hergarten), 2019.
  • Syed Ali Abbas Zaidi: Sedimentology, petrography, and hydrogeological properties of the Buntsandstein in the Gaimühle drill core (244-364). (Advisor Dr. Johannes Miocic, Supervisor Dr. Johannes Miocic, Secondary Supervisor Prof. Dr. Thomas Kenkmann), 2019.
Bachelor
  • Bischoff J P: Vergletscherungsspuren im Zastlertal (Schwarzwald) (Advisor Preusser F , Supervisor Preusser F , Secondary Supervisor Wulf G), 2019.
  • Bockstiegel M: Einfluss von Verwitterung auf den CO2-Gehalt der Atmosphäre (Advisor Siebel W, Supervisor Siebel W, Secondary Supervisor Wulf G), 2019.
  • Fabi M: Remote sensing analysis of the drainage system west of the Al Hajar Mountains, Arabia. (Advisor Wulf G, Supervisor Wulf G, Secondary Supervisor Preusser F), 2019.
  • Parison K: Morphometrische und kinematische Analyse von Wrinkle Ridges in Lunae Planum, Mars (Advisor Wulf G, Supervisor Wulf G, Secondary Supervisor Preusser F), 2019.
  • Rauscher F: Vergletscherungsspuren um den Schauinsland (Advisor Preusser F, Supervisor Preusser F, Secondary Supervisor Wulf G), 2019.
  • Tabea Schulze: Microstructural investigations of the Douglas impact crater strewn field, WY, USA (Advisor Prof. Dr. Thomas Kenkmann, Supervisor Prof. Dr. Thomas Kenkmann, Secondary Supervisor Dr. Jakob Wilk), 2019.




Guest Scientists:

  • Dr. Zhiyong Xiao, Wuhan University, China, 01.10.2018 bis 28.02.2019