Lunar and Planetary Institute

Dr. Martin Schmieder

Dr. Martin Schmieder

Postdoctoral Fellow
Phone: 281-486-2116

I obtained my doctoral degree in Geology (Dr. rer. nat.) from the University of Stuttgart and have mainly been working on the geology of large meteorite impact structures on Earth. Impact cratering has shaped the surface of our planet and other bodies in space ever since. Large impacts have had a major influence on the evolution of the Earth’s biosphere and the generation of economic deposits.

My work at the Lunar and Planetary Institute largely focuses on the petrographic and geochemical characterization of intensely shocked and impact-melted chondritic materials. Moreover, I curate a comprehensive collection of impactite thin-sections from a large number of terrestrial impact structures worldwide, soon to be turned into an online compendium. My previous and ongoing research includes the optical microscopic and SEM-aided petrography and geochemistry of impactites, meteorites, and shock metamorphic effects in rocks and minerals; classical field geology; the sedimentology of impact structures and materials; remote sensing; and the isotopic dating of large impact events using the 40Ar/39Ar dating technique on impact melt rocks and glasses, and U–Pb dating of impact-metamorphosed zircons. One further field of interest is volcanology. For more information and a full publication list, please visit my personal website


2010: Dr. rer. nat. (Doctor of Natural Sciences), Institute of Planetology, University of Stuttgart, Germany
2005: Dipl.-Geol. (Diploma Geologist), Institute of Geology and Paleontology, University of Stuttgart, Germany


Since July 2015: USRA Postdoctoral Fellow, Lunar and Planetary Institute, Houston
March 2014–June 2015: Independent Researcher, Philippines
October 2011–February 2014: Postdoctoral Research Associate at the School of Earth and Environment, University of Western Australia, Perth; University Associate at the Department of Applied Geology and John de Laeter Centre for Isotope Research, Curtin University, Perth, Australia
March 2008–September 2011: Scientific Employee at the Institute of Planetology, University of Stuttgart, Germany

I have served as a reviewer for the following journals:

Science Advances
Scientific Reports
Earth and Planetary Science Letters
Meteoritics & Planetary Science
Geological Society of America Special Papers
Geological Society London Special Publications
Journal of South American Earth Sciences


Journal articles (peer-reviewed):

Buchner, E. & Schmieder, M. (2017): Rare metals on shatter cone surfaces from the Steinheim Basin (SW Germany) – remnants of the impacting body? Geological Magazine 154 (in press).

Timms, N. E., Erickson, T. M., Pearce, M. A., Cavosie, A. J., Schmieder, M., Tohver, E., Reddy, S. M., Zanetti, M. R., Nemchin, A. A. & Wittmann, A. (2016): A pressure-temperature phase diagram for zircon at extreme conditions. Earth-Science Reviews 165, 185–202.

Schmieder, M., Kring, D. A., Swindle, T. D., Bond J. C. & Moore C. B. (2016): The Gao-Guenie impact melt breccia – Sampling a rapidly cooled impact melt dike on an H-chondrite asteroid? – Meteoritics and Planetary Science 51, 1022–1045.

Schmieder, M., Schwarz, W. H., Trieloff, M., Buchner, E., Hopp, J., Tohver, E., Pesonen, L. J., Lehtinen, M., Moilanen, J., Werner, S. C. & Öhman, T. (2016): The two Suvasvesi impact structures, Finland – Argon isotopic evidence for a ‘false’ impact crater doublet - Meteoritics and Planetary Science (in press).

Schmieder, M., Jourdan, F., Moilanen, J., Buchner, E. & Öhman, T. (2016): A Late Mesoproterozoic 40Ar/39Ar age for a melt breccia from the Keurusselkä impact structure, Finland - Meteoritics and Planetary Science 51, 303-322.

Buchner, E., Kröchert, J. & Schmieder, M. (2015) An updated and refined Holocene uplift history of southern Tenerife (Canary Islands) and the possible consequences for future volcanic activity – Geological Magazine 152, 1137-1144.

Schmieder, M., Tohver, E., Jourdan, F., Denyszyn, S. W. & Haines, P. W. (2015): Zircons from the Acraman impact melt rock (South Australia): Shock metamorphism, U–Pb and 40Ar/39Ar systematics, and implications for the isotopic dating of impact events – Geochimica et Cosmochimica Acta 161, 71–100.

Schmieder, M., Ferrière, L., Ormö, J., Buchner, E., Koeberl, C. & Reimold, W. U. (2015): Comment on: “Direct evidence of ancient shock metamorphism at the site of the 1908 Tunguska event”, by P. Vannucchi et al. [Earth Planet. Sci. Lett. 409 (2015), 168–174] – Earth and Planetary Science Letters 419, 222–223.

Schmieder, M., Chennaoui Aoudjehane, H., Buchner, E. & Tohver, E. (2015): Meteorite traces on a shatter cone surface from the Agoudal impact site, Morocco – Geological Magazine 152, 751–757.

Buchner, E. & Schmieder, M. (2015): The Steinheim Basin impact crater (SW-Germany) – where are the ejecta? – Icarus 250, 529–543.

Schwarz, W. H., Schmieder, M., Buchner, E., Trieloff, M., Moilanen, J. & Öhman, T. (2015): A Carnian 40Ar/39Ar age for the Paasselkä impact structure (SE Finland) – An update – Meteoritics and Planetary Science 50, 135–140.

Schmieder, M., Schwarz, W. H., Trieloff, M., Tohver, E., Buchner, E., Hopp, J. & Osinski, G. R. (2015): New 40Ar/39Ar dating of the Clearwater Lake impact structures (Québec, Canada) – Not the binary asteroid impact it seems? – Geochimica et Cosmochimica Acta 148, 304–324.

Hippertt, J. P., Lana, C., Weinberg, R. F., Tohver, E., Schmieder, M., Scholz, R., Gonçalves, L. & Hippertt, J. F. (2014): Liquefaction of sedimentary rocks during impact crater development – Earth and Planetary Science Letters 408, 285–295.

Gnos, E., Hofmann, B. A., Schmieder, M., Al-Wagdani, K., Mahjoub, A., Al-Solami, A. A., Nabibullah, S. N., Matter, A. & Alwmark, C. (2014): Ash Shutbah: A possible impact structure in Saudi Arabia – Meteoritics and Planetary Science 49, 1902–1914.

Schmieder, M., Buchner, E., Salameh, E. & Khoury, H. (2014): Comment on “Some observations facing the interpretation of Waqf as Suwwan structure, SE desert of Jordan, as an impact crater”, by A. M. Abed et al. (2014), Arab J Geosci – Arabian Journal of Geosciences, DOI: 10.1007/s12517-014-1672-8.

Schmieder, M., Jourdan, F., Tohver, E. & Cloutis, E. A. (2014): 40Ar/39Ar age of the Lake Saint Martin impact structure (Canada) - Unchaining the Late Triassic terrestrial impact craters – Earth and Planetary Science Letters 406, 37–48.

Schmieder, M., Trieloff, M., Schwarz, W. H., Buchner, E., & Jourdan, F. (2014): Supportive comment on: "Morphology and population of binary asteroid impact craters", by K. Miljković, G. S. Collins, S. Mannick and P. A. Bland [Earth Planet. Sci. Lett. 363 (2013) 121-132] - An updated assessment – Earth and Planetary Science Letters 405, 281–284.

Schmieder, M. & Jourdan, F. (2013): The Lappajärvi impact structure (Finland): Age, duration of crater cooling, and implications for early life – Geochimica et Cosmochimica Acta 112, 321–339.

Schmieder, M., Seyfried, H. & Ochir, G. (2013): The circular Uneged Uul structure (East Gobi Basin, Mongolia) – Geomorphic and structural evidence for meteorite impact into an unconsolidated coarse-clastic target? – Journal of Asian Earth Sciences 64, 58–76.

Schmieder, M. & Buchner, E. (2013): Impaktereignisse in Europa - [Impact events in Europe] – ZDGG German Journal of Geoscience 164, 387–415.

Buchner, E., Schmieder, M., Schwarz, W. H. & Trieloff, M. (2013): Das Alter des Meteoritenkraters Nördlinger Ries – eine Übersicht und kurze Diskussion der neueren Datierungen des Riesimpakts - [The age of the Ries impact - A review and brief discussion of recent dating results] – ZDGG German Journal of Geoscience 164, 433–445.

Buchner, E. & Schmieder, M. (2013): Das Ries-Steinheim-Ereignis – Impakt in eine miozäne Seen- und Sumpflandschaft - [The Ries-Steinheim event – impact into a Miocene swampy lakescape] – ZDGG German Journal of Geoscience 164, 459–470.

Buchner, E. & Schmieder, M. (2013): Der Steinheimer Suevit - schmelzeführende Impaktite aus dem Steinheimer Becken, Südwestdeutschland - [Steinheim suevite - melt- bearing lithologies from the Steinheim Basin (SW Germany)] – ZDGG German Journal of Geoscience 164, 471–490.

Anders, D., Buchner, E., Schmieder, M., & Kegler, P. (2013): Varietäten von Schmelzelithologien in den Impaktiten des Steinheimer Beckens (SW-Deutschland) - [Varieties of melt lithologies in the Steinheim basin (SW Germany)] – ZDGG German Journal of Geoscience 164, 491–501.

Schmieder, M. & Buchner, E. (2013): Strahlenkegel in Opalinuston-Konkretionen des Steinheimer Beckens (Baden-Württemberg) - [Shatter cones in Opalinuston concretions of the Steinheim Basin (SW Germany)] – ZDGG German Journal of Geoscience 164, 503–513.

Buchner, E., Schmieder, M., Kurat, G., Brandstätter, F., Kramar, U., Naflos, Th. & Kröchert, J. (2012): Buddha from Space – an ancient object of art made of a Chinga iron meteorite fragment – Meteoritics and Planetary Science 47, 1491–1501.

Schmieder, M., Reimold, W. U., Buchner, E., Khirfan, M., Salameh, E. & Khoury, H. (2011): Shock metamorphic microfeatures in chert from the Jebel Waqf as Suwwan impact structure, Jordan – Meteoritics and Planetary Science 46, 574–586.

Schmieder, M., Schwarz, W. H., Buchner, E., Trieloff, M. & Lambert, P. (2010): A Rhaetian 40Ar/39Ar age for the Rochechouart impact structure (France) and implications for the latest Triassic sedimentary record – Meteoritics and Planetary Science 45, 1225–1242.

Buchner, E. & Schmieder, M. (2010): Steinheim suevite – a first report of melt-bearing impactites from the Steinheim Basin (SW Germany) – Meteoritics and Planetary Science 45, 1093–1107.

Buchner, E., Schwarz, W. H., Schmieder, M. & Trieloff, M. (2010): Establishing a 14.6 ± 0.2 Ma age for the Nördlinger Ries impact (Germany) – a prime example for concordant isotopic ages from various dating materials – Meteoritics and Planetary Science 45, 662–674.

Schmieder, M., Schwarz, W. H., Buchner, E., Trieloff, M., Moilanen, J. & Öhman, T. (2010): A Middle-Late Triassic 40Ar/39Ar age for the Paasselkä impact structure (SE Finland) – Meteoritics and Planetary Science 45, 572–582.

Buchner, E. & Schmieder, M. (2009): Multiple fluvial reworking of impact ejecta - A case study from the Ries crater (Germany) – Meteoritics and Planetary Science 44, 1051–1060.

Schmieder, M., Buchner, E. & Le Heron, D. P. (2009): The Jebel Hadid structure (Al Kufrah Basin, SE Libya) – a possible impact structure and potential hydrocarbon trap? – Marine and Petroleum Geology 26, 310–318.

Kröchert, J., Buchner, E., Schmieder, M., Maurer, H., Walter, M., Strasser, A. & Strasser, M. (2009): Effusiver melilithitischer Vulkanismus auf der Schwäbischen Alb - Der Sternberg bei Gomadingen -  [Effusive melilititic volcanism on the Swabian Alb – the Sternberg volcano (Gomadingen)] – ZDGG German Journal of Geoscience 160, 315–323.

Kröchert, J., Schmieder, M., Theye, T. & Buchner, E. (2009): Considerations on the age of the Urach volcanic field (Southwest Germany) – ZDGG German Journal of Geoscience 160, 325–331.

Schmieder, M. & Buchner, E. (2008): Dating impact craters: paleogeographic versus isotopic and stratigraphic methods - a brief case study – Geological Magazine 145, 586–590.

Schmieder, M., Moilanen, J. & Buchner, E. (2008): Impact melt rocks from the Paasselkä impact structure (SE Finland): petrography and geochemistry – Meteoritics and Planetary Science 43, 1189–1200.

Buchner, E. & Schmieder, M. (2007): Mousso structure: a deeply eroded, medium-sized complex impact crater in northern Chad? – Journal of African Earth Sciences 49, 71–78.

Schmieder, M. & Buchner, E. (2007): Short Note: The Faya basin (N Chad, Africa) – A possible impact structure? – Journal of African Earth Sciences 47, 62–68.


For abstracts and more info please visit

Connect With Us!
LPI Email Newsletters