Dr. Daniel Herwartz

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Research interests

 

  • Triple oxygen isotope variations (Δ17O) in terrestrial rocks and meteoric waters.
  • Lu-Hf geochronology (garnet, apatite and lawsonite) in high pressure rocks (eclogites).
  • Lu-Hf  and rare earth element (REE) systematics of fossil bones and teeth.
  •  Early Earth and the Earth-Moon system.

 

 

Publications

Peer reviewed articles:

Herwartz D., Pack A. Friedrichs B. and Bischoff A. (2014) Identification of the giant impactor Theia in lunar rocks. Science (accepted).

Pack A. and Herwartz D. (2014) The triple oxygen isotope composition of the Earth mantle and understanding Δ17O variations in terrestrial rocks and minerals. Earth and Planetary Science Letters 390, 138-145.

Rojas-Agramonte Y., Herwartz D., García-Casco A., Kröner A., Alexeiev D.V. Klemd, R., Buhre S. and Barth M. (2013) Early Paleozoic deep subduction of continental crust in the Kyrgyz North Tianshan: Evidence from Lu-Hf garnet geochronology and petrology of mafic dykes. Contributions to Mineralogy and Petrology 166, 525-543.

Vitale Brovarone A. and Herwartz D. (2013) Timing of HP metamorphism in the Schistes Lustrés of Alpine Corsica: new Lu-Hf garnet and lawsonite ages. Lithos 172-173, 175–191.

Nagel T. J., Herwartz D., Rexroth S., Münker C., Froitzheim N. and Kurz W. (2013) Lu-Hf dating, petrography, and tectonic implications of the youngest Alpine eclogites (Tauern Window, Austria). Lithos 170-171, 179-190.

Herwartz D., Tütken T., Jochum K. P. and Sander P. M. (2013) Rare earth element systematics of fossil bone revealed by LA-ICPMS analysis. Geochimica et Cosmochimica Acta 103, 161-183.

Herwartz D., Münker C., Tütken T., Hoffmann J. E., Wittke A. and Barbier B. (2013) Lu-Hf systematics of fossil biogenic apatite and their effects on geochronology. Geochimica et Cosmochimica Acta 101, 328-343.

Herwartz D., Skublov S.G., Berezin A.V. and Melnik A.E. (2012) First Lu-Hf garnet ages of eclogites from the Belmorian Mobile Belt, Kola Peninsula, Russia. Doklady Earth Sciences 443, 377-380.

Hoffmann J. E., Münker C., Næraa T., Rosing M. T., Herwartz D., Garbe-Schönberg D. and Svahnberg H. (2011) Mechanisms of Archean crust formation inferred from high-precision HFSE systematics in TTGs. Geochimica et Cosmochimica Acta 75, 4157-4178.

Herwartz D., Nagel T. J., Münker C., Scherer E. E. and Froitzheim N. (2011) Tracing two orogenic cycles in one eclogite sample by Lu-Hf garnet chronometry. Nature Geoscience 4, 178-183.

Herwartz D., Tütken T., Münker C., Jochum K. P., Stoll B. and Sander P. M. (2011) Timescales and mechanisms of REE and Hf uptake in fossil bones. Geochimica et Cosmochimica Acta 75, 82-105.

Herwartz D., Münker C., Scherer E. E., Nagel T. J., Pleuger J. and Froitzheim N. (2008) Lu-Hf garnet geochronology of eclogites from the Balma Unit (Pennine Alps): implications for Alpine platetectonic reconstructions. Swiss Journal of Geosciences 101, Supplement 1, S173-S189, doi: 10.1007/s00015-008-1292-y.

 

 

Diploma thesis (eq. to Masters):

Herwartz D. (2007) Geochronologie (Lu-Hf & Sm-Nd) an Eklogiten der Balma-Einheit und die Geologie des nordwestlichen Valle di Gressoney (Westalpen, Italien). Diplomarbeit, Universität Bonn, 124 S.

 

 

 Ph.D thesis:

Herwartz D. (2011) From fossil bones to eclogites: Lu-Hf geochronology and rare earth element systematics. Dissertation, Universität Bonn, 237 S.

 

Geological map:

Rehnström, E.F. (Compiler; 2011) Geological map of Greenland 1:100 000, Kapisillit 64 V.2 Syd. Copenhagen. Geological Survey of Denmark and Greenland. Printed by: Laursen Grafisk A/S, Denmark 2011.

 

 

Conference abstracts:

Herwartz D., Friedrichs B., Bischoff A. and Pack A (2014) The elevated Δ17O composition of the Moon relative to the Earth. Goldschmidt conference, Sacramento, California, USA.

Pack A, Herwartz D., Sengupta S. (2014) Mass-dependant variations in Δ17O in mantle and crustal rocks. Goldschmidt conference, Sacramento, California, USA.

Herwartz D., Friedrichs B., Bischoff A. and Pack A (2013) Differences in Δ17O between the Earth, Moon and enstatite chondrites. Paneth Kolloquium, Nördlingen, Germany.

Herwartz D., Friedrichs B., Pack A. and Bishoff A. (2013) The triple oxygen isotopic composition oft he Earth, the Moon and enstatite chondrites. Origin of the Moon meeting, Milton Keynes, England.

Herwartz D., Pack A., Krylov D. (2013) Variations of Δ17O in terrestrial rocks. Goldschmidt Conference, Florenz, Italy.

Froitzheim N., Sandmann S., Nagel T.J., Herwartz D. (2013) Garnet systematics of a polymetamorphic basement unit: Evidence for coherent exhumation of the Adula Nappe (Central Alps) from eclogite-facies conditions. Alpine Workshop, Schladming, Austria.

Herwartz D., Münker C., Tütken T., Hoffmann J. E., Wittke A. and Barbier B. (2012) Fossil bones in persistent action – uptake, loss and redistribution of REE and Hf. EMC 2012, Frankfurt, Germany.

Sandmann S., Nagel T.J., Herwartz D. and Kurzawski R.M. (2012) Nappe scale coherent block exhumation from eclogite-facies conditions revealed by Lu-Hf garnet chronometry - the Adula Nappe (Central Alps). General Assembly 2012, Vienna, Austria.

Rojas-Agramonte Y., Garcia-Casco A., Kröner A., Herwartz D., Despaigne A.I. and Wilde S. (2012) New geochronological ages (U-Pb/Lu-Hf) from high-pressure rocks of the Escambray terrane and Santa Clara serpentinite mélange, central Cuba. Regional correlations and geodynamic implications. General Assembly 2012, Vienna, Austria.

Herwartz D., Nagel T.J., Sandmann S., Vitale Brovarone A., Rexroth S., Rojas-Agramonte Y., Froitzheim N., Kröner A., Skublov S.G. and Münker C. (2012) Traditional applications and novel approaches in Lu-Hf geochronology. General Assembly 2012, Vienna, Austria.

Vitale Brovarone A. and Herwartz D. (2012) On the timing of high-pressure metamorphism in Alpine Corsica: the first Lu-Hf garnet and lawsonite ages.

Herwartz D., Tütken T., Jochum K. P. and Sander M. (2011) REE in fossil biogenic apatite. Goldschmidt Conference, Prag, Czech Republic. To be published in Geochimica et Cosmochimica Acta, Supplements.

Rojas-Agramonte Y., Herwartz D., Kröner A., Hegner E. and Alexeiev D. (2011) Lu-Hf garnet geochronology and whole-rock geochemistry of eclogitic dyke in the Aktyuz Complex of the northern Tianshan, Kyrgyzstan. Bishkek, Kyrgystan.

Tütken T., Eagle R. A., Heuser A., Herwartz D. and Galer S. J. G. (2011) Non-traditional isotope analysis of fossil bones and teeth – Preservation of biogenic compositions or diagenetic alteration? Geophysical Research Abstracts Vol. 13, EGU General Assembly 2011, Vienna, Austria.

Sandmann S., Kirst F., Froitzheim N., Nagel T., Herwartz D. and Münker C. (2011) Lu-Hf Garnet Ages from the Southeastern Part of the Pohorje Mountains, Eastern Alps, Slovenia. 10th Alpine Workshop ‘CorseAlp 2011’, St. Florent, Korsika, France.

Herwartz D., Nagel T. J., Münker C., Scherer E. E. and Froitzheim N. (2011) Lu-Hf Geochronometry of two Garnet Generations Within one Eclogite Sample From Trescolmen (Adula Nappe) 10th Alpine Workshop ‘CorseAlp 2011’, St. Florent, Korsika, France.

Tütken T. and Herwartz D. (2010) Timescales of REE and element uptake into fossil bones – Implications for palaeoenvironmental and taphonomic reconstructions. GSA Annual Meeting 2010, Denver, USA.

Herwartz D., Nagel T. J., Münker C., Scherer E. E. and Froitzheim N. (2010) One Eclogite - Two Orogenies. Jahrestagung der DMG 2010, Münster.

Rexroth S., Herwartz D., Froitzheim N., Münker C., Nagel T. J. and Sandmann S. (2010) The first Lu-Hf garnet ages from the Eclogite Zone, Tauern window, Eastern Alps. Jahrestagung der DMG 2010, Münster.

Behrens M., Luguet A., Herwartz D. and Pearson D.G. (2010) Lu-Hf and Re-Os isotopic systematics in highly metasomatised samples: a case study in Letlhakane peridotite xenoliths (Botswana) Jahrestagung der DMG 2010, Münster.

Hoffmann J. E. Münker C., Næraa T., Rosing M. T., Garde A. A., Herwartz D. and Garbe-Schönberg D. (2010) TTG formation inferred from high-precision HFSE systematics. In: Hofmann, A. et al. (Ed.). Excursion Guide and Abstract Volume. Field workshop for the Crustal Development of the north-eastern Kapvaal Craton, Swaziland and South Africa. Paulpietersburgh and Elzuwini.

Herwartz D., Tütken T., Münker C., and Sander P. M. (2009) The timescales of REE uptake in fossil bone: Implications for Lu-Hf geochronology. Bone Diagenesis Meeting 2009, Bonn.

Nagel T., Froitzheim N., Janak M., Schmidt S., Sandmann S., Kirst F., Herwartz D. and Kirchenbaur M. (2009) Assembling UHP-metamorphic units in the Alps and Rhodopes. Alpine Workshop 2009, Cogne, Italy.

Herwartz D., Tütken T., Münker C. and Sander P. M. (2009) Lu-Hf dating of biogenic phosphates – Prospects and pitfalls. Geochimica Cosmochimica Acta 73, 13S, A527.

Herwartz D., Tütken T., Münker C., Sander P. M., Stoll B. and Jochum K. P. (2008) Trace element and REE distribution in fossil bone – implicationsf for Lu-Hf dating of diagenesis. DMG meeting 2008. Berlin.

Tütken T., Heuser A. and Herwartz D. (2008) Fossilisation of bones and teeth – which information is lost, which preserved? Erlanger geologische Abhandlungen, Sonderband 6, 67-68.

Herwartz D., Tütken T., Münker C., Sander P. M., Stoll B. and Jochum K. P. (2008) Concentration profiles of trace elements in fossil dinosaur bone. Geochimica et Cosmochimica Acta 72 (12), Suppl. 1, A 373.

Herwartz D., Münker C., Scherer E. E., Nagel T., Pleuger J. and Froitzheim N. (2007) The First Lu-Hf garnet Ages of Noth Penninic Alpine Eclogites. Geochimica et Cosmochimica Acta 71 (15), Suppl. S, A 400.

 

 

 

Rewies for:

National Science Foundation (multiple), Geochimica et Cosmocimica Acta, Quaternatry Geology, Acta Palaeontologica Polonica, Palaeogeography Palaeoclimatology Palaeoecology, Precambrian Research, Lithos (multiple), Ecitoxiology and Environmental Saftey, Chemical Geology, Journal of Archeological Science, Quaternary Geochronology, Geology

 

 Award:

Bernd Rendel-Preis (2011) of the 'Deutschen Forschungsgemeinschaft (DFG).