Isotopengeochemie

Dr. Benjamin Eickmann

Address
Universität Tübingen GUZ
Isotopengeochemie
Schnarrenbergstrasse 94-96
72076 Tübingen

Office: Room 6U05, GUZ

Phone: +49-(0)7071-29-78908
Fax: +49-(0)7071-29-3060
Mail: benjamin.eickmann(at)uni-tuebingen.de

Research interests

  • Stable isotope geochemistry (multiple S, Fe, Mo, Cr, Se)
  • Paleoenvironmental reconstructions
  • Geobiology of modern and ancient hydrothermal systems

Short CV

Since 2016

Postdoctoral Fellow in the Isotope Geochemistry Group, University of Tübingen, Germany
2013–2016

Postdoctoral Fellow at the Department of Geology, University of Johannesburg, South Africa
2009–2012

Postdoctoral Fellow at the Centre for Geobiology, University of Bergen, Norway
2009

PhD at MARUM and Department of Geosciences, University of Bremen, Germany
2005

Diploma in Geology/Paleontology at the Institute for Geology and Paleontology, University of Münster, Germany

Publications (-05/2019)

  • Crockford PW, Wing BA, Paytan A, Hodgskiss MSW, Mayfield KK, Hayles, JA, Middleton JE, Ahm A-SC, Johnston DT, Caxito F, Uhlein G, Halverson GP, Eickmann B, Torres M, Horner TJ (2019): Barium-isotopic constraints on the origin of post-Marinoan barites. Earth and Planetary Science Letters 519, 234-244. DOI: https://doi.org/10.1016/j.epsl.2019.05.018
  • Cabral, AR, Zack, T, König S, Eickmann B, Kwitko-Ribeiro R, Tupinambá M, Lehmann B (2019) Distinguishing high- from low-temnperature platinum nuggets through their trace-element pattern. Economic Geology 114(2), 201-206
  • Agangi A, Hofmann A, Eickmann B, Marin-Carbonne M (2019) Mesoarchean gold mineralization in the Barberton Greenstone Belt: A review. In Kröner A, Hofmann A (eds.) The Archean Geology of the Kaapvaal Craton, Southern Africa, Regional Geology Reviews. Springer Nature, p. 171-184.
  • Ossa Ossa F, Hofmann A, Spangenberg JE, Poulton SW, Stueken EE, Schoenberg R, Eickmann B, Wille M, Butler M, Bekker A (2019): Limited oxygen production in the Mesoarchean ocean. PNAS 116: 6647-6652. DOI: 10.1073/pnas.1818762116.
  • Ossa Ossa F, Eickmann B, Hofmann A, Spangenberg JE, Planavsky NJ, Asael D, Bekker A (2019): Reply to the comment by Préat and Weber on Ossa Ossa et al. (2018). Earth and Planetary Science Letters 511: 259–261.
  • König S, Eickmann B, Zack T, Yierpan A, Wille M, Taubald H, Schoenberg R (2019): Redox induced sulfur-selenium isotope decoupling recorded in pyrite. Geochimica et Cosmochimica Acta 244: 24-39.
  • Ossa Ossa F, Hofmann A, Wille M, Spangenberg JE, Bekker A, Poulton SW, Eickmann B, Schoenberg R (2018): Aerobic iron and manganese cycling in a redox-stratified Mesoarchean epicontinental sea. Earth and Planetary Science Letters 500: 28–40.
  • Ossa Ossa F, Eickmann B, Hofmann A, Planavsky NJ, Asael D, Pambo F, Bekker A (2018): Two-step deoxygenation at the end of the Paleoproterozoic Lomagundi Event. Earth and Planetary Science Letters 486: 70-83.
  • Eickmann B, Hofmann A, Wille M, Hao Bui T, Wing BA, Schoenberg R (2018): Isotopic evidence for oxygenated Mesoarchaean shallow oceans. Nature Geoscience 11(2): 133-137. doi:10.1038/s41561-017-0036-x
  • Agangi A, Hofmann A, Eickmann B, Marin-Carbonne J, Reddy SM (2016): An atmospheric source of S in Mesoarchaean structurally-controlled gold mineralisations of the Barberton Greenstone Belt. Precambrian Research 285, 10-20.
  • Eickmann B, Thorseth IH, Peters M, Strauss H, Bröcker M, Pedersen RB (2014): Barite in hydrothermal environments as a recorder of sub-seafloor processes: A multiple isotope study from the Loki’s Castle vent field. Geobiology 12, 308-321.
  • Jaeschke A, Eickmann B, Lang SQ, Bernasconi SM, Strauss H, Früh-Green GL (2014): Biosignatures in a silica-barite chimney from the Loki’s Castle vent field at the Arctic Mid-Ocean Ridge. Extremophiles 18, 545-560.
  • McLoughlin N, Staudigel H, Furnes H, Eickmann B, Ivarsson M (2010): Mechanisms of microtunneling in rock substrates - distinguishing endolithic biosignatures from abiotic microtunnels. Geobiology 8, 245-255.
  • Peters M, Strauss H, Farquhar J, Ockert C, Eickmann B, Jost CL (2010): Sulfur cycling at the Mid-Atlantic Ridge: a multiple sulfur isotope approach. Chemical Geology 269, 180-196.
  • Eickmann B, Bach W, Kiel S, Reitner J, Peckmann J (2009): Evidence for cryptoendolithic life in Devonian pillow basalts of Variscan orogens, Germany. Palaeogeography, Palaeoclimatology, Palaeoecology 283, 120-125.
  • Eickmann B, Bach W, Rosner M, Peckmann J (2009): Geochemical constraints on the modes of carbonate precipitation in peridotites from the Logatchev Hydrothermal Vent Field and Gakkel Ridge. Chemical Geology 268, 97-106.
  • Eickmann B, Bach W, Peckmann J (2009): Authigenesis of carbonate minerals in modern and Devonian ocean-floor hard rocks. The Journal of Geology 177, 307-323.