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Theses Ph.D. |  M.Sc. B.Sc. 


Peer-Reviewed Publications

In press


Hoffmann, J.E., Kröner, A. (accepted). The Ancient Gneiss Complex of Swaziland and environs: an updated record of early Archaean crustal evolution in southern Africa. In: Earth’s oldest rocks (2nd ed.). (ed. Van Kranendonk, M.J., Bennett, V.C., Hoffmann, J.E.). p. xx-xx. ElSevier. Amsterdam, New York, London.

van de Löcht, J. Hoffmann, J.E., Li, C., Wang, Z., Becker, H., Rosing, M.T., Kleinschrodt, R., Münker, C. (2018) Earth’s oldest mantle peridotites show entire record of late accretion. Geology. DOI:


Gleißner, P. and Becker, H. (2017): Formation of Apollo 16 impactites and the composition of late accreted material: Constraints from Os isotopes, highly siderophile elements and sulfur abundances. Geochimica et Cosmochimica Acta 200, 1-24.

Hoffmann, J.E. (2017) Oxygenation by a changing crust. Nature Geoscience. DOI: doi:10.1038/ngeo3038

Hoffmann, J.E., Wilson, A.H. (2017) The origin of highly radiogenic Hf isotope compositions in 3.33 Ga Commondale komatiite lavas (South Africa). Chemical Geology. 455, 6-21.


Szilas, K., Hoffmann, J.E., Schulz, T., Hansmeier, C., Polat, A., Viehmann, S., Kasper, H.-U., Münker, C. (2016) Combined bulk-rock Hf- and Nd-isotope compositions of Mesoarchaean (ca. 3075 Ma) metavolcanic rocks from the Ivisaartoq Supracrustal Belt, SW Greenland. Chemie der Erde - Geochemistry

Szilas, K., Tusch, J., Hoffmann, J.E., Garde, A.A., Münker, C. (2016). Hafnium isotope constraints on the origin of Mesoarchaean andesites in southern West Greenland, North Atlantic craton. In: Archaean Cratons - New Insights on Old Rocks (Eds. J. Halla, M. Whitehouse, Z. Bagai, T. Ahmad). Special Publication of the Geological Society of London (in press). DOI: 10.13140/1801.968

Siedenberg, K., Strauss, H., Hoffmann, J.E. (2016) Multiple sulphur isotope signature of early Archean oceanic crust, Isua (SW-Greenland). Precambrian Research 283, 1-12.

Hoffmann, J.E., Kröner, A., Hegner, E., Viehmann, S., Xie, H., Iiacheri, L.M., Schneider, K.P., Hofmann, A., Wong, J., Geng, H., Yang, JH, Source composition, fractional crystallisation and magma mixing processes of the 3.48-3.43 Ga Tsawela tonalite suite (Ancient Gneiss Complex, Swaziland) – implications for Palaeoarchean geodynamics. Precambrian Research.

Kröner, A., Anhauesser, C.R., Hoffmann, J.E., Hegner, E., Wong, J., Geng, H., Xie, H., Yang, J., Liu, D., Chronology of the oldest supracrustal sequences of the Barberton Greenstone Belt, South Africa and Swaziland. Precambrian Research.

Harry Becker and Dale, Christopher W., Re–Pt–Os Isotopic and Highly Siderophile Element Behavior in Oceanic and Continental Mantle Tectonites. In: Highly Siderophile and Strongly Chalcophile Elements in High-Temperature Geochemistry and Cosmochemistry (eds. J. Harvey and J.M.D. Day), Reviews in Mineralogy and Geochemistry, 81, 369-440. DOI: 10.2138/rmg.2016.81.7.

Kadlag Y. and Becker H., Highly Siderophile and Chalcogen Element Constraints on the Origin of Components of the Allende and Murchison Meteorites. Meteoritics & Planetary Science.

Kadlag Y. and Becker H. , 187Re-187Os systematics, Highly Siderophile and Chalcogen Element Abundances in the Components of Unequilibrated L chondrites. Geochimica et Cosmochimica Acta, 172, 225-246. 

Jochum K.P., Wilson S.A., Becker H., Garbe-Schönberg D. Groschopf N., Kadlag Y., Macholdt D.S., Mertz-Kraus R., Otter L.M., Stoll B., Stracke A., Weis U., Haug G.H., Andreae M.O., FeMnOx-1: A new microanalytical reference material for the investigation of Mn–Fe rich geological samples. Chemical Geology 432, 34-40.

Wang, Z., Laurenz, V., Petitgirard, S., Becker, H., Earth's moderately volatile element composition may not be chondritic: Evidence from In, Cd and Zn. Earth Planet. Sci. Lett. 435, 136-146.

van Acken, D., Hoffmann, J.E., Schorscher, H.J.D., Schulz, T., Heuser, A., Luguet, A., Formation of High-Al komatiites from the Mesoarchaean Quebro Osso Group, Minas Gerais, Brazil: trace elements, HSE systematics and Os isotopic signatures.Chemical Geology 422, 108-121. 


Hohl, S. V., and H. Becker, Gamper, A., Jiang, S. Y., Wiechert, U., Yang, J. H., & Wei, H. Z.. Secular changes of water chemistry in shallow-water Ediacaran ocean: Evidence from carbonates at Xiaofenghe, Three Gorges area, Yangtze Platform, South China. Precambrian Research270, 50-79.

Hohl, S. V.,  and H. Becker, Herzlieb, S., & Guo, Q.. Multiproxy constraints on alteration and primary compositions of Ediacaran deep-water carbonate rocks, Yangtze Platform, South China. Geochimica et Cosmochimica Acta,163, 262-278.

Kadlag Y. and Becker H., Fractionation of Highly Siderophile and Chalcogen Elements in Components of EH3 chondrites. Geochimica et Cosmochimica Acta, 161 166-187.

Peters, S. T., Münker, C., Becker, H., & Schulz, T.. Comment on “Cosmogenic 180 W variations in meteorites and re-assessment of a possible 184 Os–180 W decay system” by Cook, DL, Kruijer, T., Leya, I., Kleine, T.Geochimica et Cosmochimica Acta169, 236-239.

Suhr, N., Hoffmann, J.E., Kröner, A., Schröder, S., Archaean granulitic Paragneisses from Central Swaziland: Inferences on Paleoarchaean crustal reworking and a complex metamorphic history. Journal of the Geological Society of London 172, 139-152. 

Szilas, K., Hoffmann, J.E., Hansmeier, C., Hollis, J.A., Münker, C., Viehmann, S., Kasper, H.U., Nd-Hf isotope and trace element systematics of Mesoarchaean amphibolites, inner Ameralik fjord, southern West Greenland. Mineralogical Magazine 79, 857-876.

Szilas, K., Tusch, J., Hoffmann, J.E., Garde, A.A., Münker, C., Hafnium isotope constraints on the origin of Mesoarchaean andesites in southern West Greenland, North Atlantic craton. In: Archaean Cratons - New Insights on Old Rocks (Eds. J. Halla, M. Whitehouse, Z. Bagai, T. Ahmad). Special Publication of the Geological Society of London. DOI: 10.13140/1801.9684.

Viehmann, S., Bau, M., Hoffmann, J.E., Münker, C., Geochemistry of the Krivoy Rog Banded Iron Formation, Ukraine, and the impact of peak episodes of increased global magmatic activity on the trace element composition of Precambrian seawater. Precambrian Research 270, 165-180.

Wang, Z., Becker, H., Comment on “A non-primitive origin of near-chondritic S-Se-Te ratios in mantle peridotites: Implications for the Earth's late accretionary history” by König S. et al. Earth Planet. Sci. Lett. 385, 110–121]. Earth Planet. Sci. Lett. 417, 164-166.

Wang, Z., Becker, H., Abundances of Ag and Cu in mantle peridotites and the implications for the behavior of chalcophile elements in the mantle. Geochim. Cosmochim. Acta 160, 209-226.

Wang, Z., Becker, H., Fractionation of highly siderophile and chalcogen elements during magma transport in the mantle: Constraints from pyroxenites of the Balmuccia peridotite massif. Geochim. Cosmochim. Acta 159, 244-263.

Wang, Z., Becker, H., Wombacher, F., Mass Fractions of S, Cu, Se, Mo, Ag, Cd, In, Te, Ba, Sm, W, Tl and Bi in Geological Reference Materials and Selected Carbonaceous Chondrites Determined by Isotope Dilution ICP-MS. Geostand. Geoanal. Res. 39, 185-208.


Peters, S. T., Münker, C., Becker, H., & Schulz, T. , Alpha-decay of 184 Os revealed by radiogenic 180 W in meteorites: Half life determination and viability as geochronometer. Earth and Planetary Science Letters391, 69-76.

Van Kranendonk, M.J., Kröner, A., Hoffmann, J.E., Nagel, T.J., Anhaeusser, C., Just another drip: structural analysis of a proposed Mesoarchean suture from the Barberton Mountain Land, South Africa. Precambrian Research 254, 19-35.

 Wang, Z., Becker, H. Abundances of sulphur, selenium, tellurium, rhenium and platinum group elements in eighteen reference materials by isotope dilution sector-field ICP-MS and negative TIMS. Geostandards and Geoanalytical Research, 38, 189-209.

Zeng, Q., Wang, Z., He, H., Wang, Y., Zhang, S. and Liu, J.,Multiple isotope composition (S, Pb, H, O, He, and Ar) and genetic implications for gold deposits in the Jiapigou gold belt, Northeast China. Mineral. Deposita 49, 145-164. 


Wang, Z., Becker, H., Ratios of S, Se and Te in the silicate Earth require a volatile-rich late veneer. Nature, 499, 328-332.

Wang, Z., Becker, H., Gawronski, T. , Partial re-equilibration of highly siderophile elements and the chalcogens in the mantle: A case study on the Baldissero and Balmuccia peridotite massifs (Ivrea Zone, Italian Alps). Geochimica et Cosmochimica Acta 108, 21–44.

Zhu, B., Becker, H., Jiang, S.-Y., Pi, D.-H., Fischer-Gödde, M., Yang, J.-H., Re-Os geochronology of black shales from the Neoproterozoic Doushantuo Formation, Yangtze platform, South China. Precambrian Research, 225, 67-76. 


Fischer-Gödde, M., Becker, H., Osmium isotope and highly siderophile element constraints on ages and nature of meteoritic components in ancient lunar impact rocks. Geochimica et Cosmochimica Acta, 77, 135-156.

Gleissner, P., Drüppel, K., Becker, H. , Osmium isotopes and highly siderophile element fractionation in the massif-type anorthosites of the Mesoproterozoic Kunene Intrusive Complex, NW Namibia. Chemical Geology, 302-303, 33-47.

Mann, U., Frost, D. J., Rubie, D. C., Becker, H., Audetat, A., Partitioning of Ru, Rh, Pd, Re, Ir and Pt between liquid metal and silicate at high pressures and high temperatures - Implications for the origin of highly siderophile element concentrations in the Earth’s mantle. Geochimica et Cosmochimica Acta, 84, 593-613.

Taft, L., U. Wiechert, F. Riedel, M. Weynell, H. Zhang. Sub-seasonal oxygen and carbon isotope variations in shells of modern Radix sp. (Gastropoda) from the Tibetan Plateau: Potential of a new archive for palaeoclimatic studies. Quarternary Science Reviews.

Liu, X., Li, C., Lu, Q., Deng, B., Song, X., Zhao, F., Chu, Y., Xiao, J., Yi, W., Huang, Y.  (2012) The Genesis Mechanism of the Mantle Fluid Action and Evolution in the Ore-Forming Process: A Case Study of the Laowangzhai Gold Deposit in Yunnan, China. Acta Geologica Sinica (English edition), 86(3), 608-618. 


Fischer-Gödde, M., Becker, H., Wombacher, F. , Rhodium, gold and other highly siderophile elements in orogenic peridotites and peridotite xenoliths. Chemical Geology 280, 365-383.

Gleißner, P., Drüppel, K., Romer, R.L., The role of crustal contamination in massif-type anorthosites, new evidence from Sr-Nd-Pb isotopic composition of the Kunene Intrusive Complex, NW Namibia. Precambrian Research 185, 18-36.

Pettke, T., F. Oberli, A. Audetat, U. Wiechert, C. R. Harris and C. A. Heinrich , Plasma mass spectrometry: accurate lead isotope ratio determination by laser ablation of individual fluid inclusions. J. Anal. At. Spectrom. 26,475-492.

Magna, T., U. Wiechert, F.M. Stuart, A.N. Halliday, D. Harrison, Combined Li-He isotopes in Iceland and Jan Mayen basaltsand constraints on the nature of the North Atlantic mantle. Geochim. Cosmochim. Acta 75, 922–936.

Wombacher F.,Eisenhauer A., Böhm F., Gussone N., Regenberg M., Dullo W.-C., Rüggeberg A., Magnesium stable isotope fractionation in marine biogenic calcite and aragonite. Geochimica et Cosmochimica Acta, 75, 5797-5878. 


Fischer-Gödde, M., Becker, H., Wombacher, F., Rhodium, gold and other highly siderophile element abundances in chondritic meteorites. Geochimica et Cosmochimica Acta 74, 356-379.

V. Janoušek, V. Erban, F.V. Holub, T. Magna, H. Bellon, B. Mlčoch, U. Wiechert, V. Rapprich, Geochemistry and genesis of behind-arc basaltic lavas from eastern Nicaragua. J. of Volcanology and Geothermal Research 192, 232–256.

Magna, T. Janoušek, V., Kohút, M., Oberli, F., Wiechert, U.,. Fingerprinting orogenic plutonic rocks from Variscan belt with lithium isotopes and the link to subduction-related origin of some A-type granites. Chemical Geology, 274, 94-107.

C.V. Ullmann, U. Wiechert, C. Korte, Oxygen isotope fluctuations in a modern North Sea oyster (Crassostrea gigas) compared with annual variations in seawater temperature: Implications for palaeoclimate studies. Chemical Geology 277, 1-2, 160-166.

van Acken, D., Becker, H., Hammerschmidt, K., Walker, R. J., Wombacher, F. Highly siderophile elements and Sr-Nd isotopes in refertilized mantle peridotites - a case study from the Totalp ultramafic body, Swiss Alps. Chemical Geology 276, 257-268.

van Acken, D., Becker, H., Walker, R. J., McDonough, W., F., Wombacher, F., Ash, R. D., Piccoli, P. M. Formation of pyroxenite layers in the Totalp ultramafic massif (Swiss Alps) – insights from highly siderophile elements and Os isotopes. Geochimica et Cosmochimica Acta 74, 2674–2691. 


Burla, S., Oberli, F., Heimhofer, U., Wiechert, U., Weissert, H. Improved time control of Cretaceous coastal deposits: New results from Sr isotope measurements using laser ablation. Terra Nova 21, 401-409..

Wombacher, F., Eisenhauer, A., Weyer, S., and Heuser, A. Separation of Mg, Ca and Fe from geological reference materials for stable isotope ratio analyses by MC-ICP-MS and double-spike TIMS. J. Anal. At. Spectrom. 24, 627-636. 


Burla S., Oberli F., Wiechert U., Heimhofer U., Weissert, H.,The timing of Early Cretaceous global change as revealed by Sr-Isotopes using laser ablation. Submitted to Geology.

Lange T., Hammerschmidt K., Friedrichsen H., Marei A., Weise S. M., Groundwater in the Shallow Aquifer of the Jericho Area, Jordan Valley – Noble Gas Evidence for Different Sources of Salinization in: Fathi Zereini, J.W., Heinz Hötzl, (eds.) Climatic Changes and Water Resources in the Middle East and North Africa, 552 pp., Springer Verlag.

Leya I., Schönbächler M., Wiechert U., Krähenbühl U. and Halliday A.N. , Titanium isotopes and the radial heterogeneity of the solar system. Earth Planet. Sci. Lett. 266, 233-244.

Magna T., Ionov D.A., Oberli F., and Wiechert U., Links between mantle metasomatism and lithium isotopes: Evidence from glass-bearing and cryptically metasomatised xenoliths from Mongolia. Earth Planet. Sci. Lett. 276,214-222.

van Acken, D., Becker, H., Walker, R. J., Refertilization of Jurassic oceanic peridotites from the Tethys Ocean – implications for the Re-Os systematics of the upper mantle. Earth and Planetary Science Letters 268, 171-181.

Wombacher, F., Rehkamper, M., Mezger, K., Bischoff, A., and Munker, C., Cadmium stable isotope cosmochemistry. Geochimica et Cosmochimica Acta 72, 646-667. 


Farquhar J., Peters M., Johnston D. T., Strauss H., Masterson A., Wiechert U. and Kaufman A.J., Isotopic evidence for Mesoarchaean anoxia and changing atmospheric sulphur chemistry. Nature 449, 706-710.

Gleissner, P., Glodny, J., Franz, G., Rb-Sr isotopic dating of pseudomorphs after lawsonite in metabasalts from the Glockner nappe, Tauern Window, Eastern Alps. European Journal of Mineralogy 19, 723-734.

Heber V.S., Wiens R.C., Reisenfeld D.B., Allton J.H., Baur H., Burnett D.S., Olinger C.T., Wiechert U., Wieler R., The Genesis Solar Wind Concentrator Target: Mass Fractionation Characterised by Neon Isotopes. Space Sci. Rev. 130, 309-316.

Leya I., Schönbächler M., Wiechert U., Krähenbühl U., and Halliday A.N. , High precision titanium isotope measurements on geological samples by high resolution MC-ICPMS. Int. J. Mass Spec. 262, 247-255.

Trumbull R. B., Reid D. L., de Beer C., van Acken D., and Romer R. L., Magmatism and continental breakup at the west margin of southern Africa: A geochemical comparison of dolerite dikes from northwestern Namibia and the Western Cape. South African Journal of Geology 110.

Wiechert U. and Halliday A. N., Non-chondritic magnesium and the origins of the inner terrestrial planets. Earth Planet. Sci. Lett. 256, 360-371. 


Becker, H., Horan, M. F., Walker, R. J., Lorand, J.-P., Gao, S., Rudnick, R.L., Highly siderophile element composition of the Earth’s primitive upper mantle: Constraints from new data on peridotite massifs and xenoliths. Geochimica et Cosmochimica Acta 70, 4528-4550.

Geldmacher J., Hoernle K., Klügel A., Bogaard P. v. d., Wombacher F., and Berning B., Origin and geochemical evolution of the Madeira-Tore Rise (eastern North Atlantic). J. Geophys Res. 111, B09206, doi:10.1029/2005JB003931.

Magna T., Wiechert U, and Halliday A. N. (2006) Lithium isotope composition of the Moon and terrestrial planets. Earth Planet. Sci. Lett. 243, 336-353.

Reynolds B. C., Georg R. B., Oberli F., Wiechert U. and Halliday A. N., Re-assessment of silicon isotope reference materials using high-resolution multi-collector ICP-MS. JAAS 21, 266 - 269.

Magna T., Wiechert U., Grove T., and Halliday A. N., Lithium isotope fractionation in the Southern Cascadia Subduction Zone. Earth Planet. Sci. Lett., 250, 428-443.

Shearer C. K., Hess P. C., Wieczorek M. A., Pritchard M. E., Parmentier E. M., Borg L. E., Longhi J., Elkins-Tanton L. T., Neal C. R., Antonenko I., Canup R. M., Halliday A. N., Grove T. L., Hager B. H., Lee D. C., and Wiechert U. (2006) Thermal and Magmatic Evolution of the Moon. In New Views of the Moon, Vol. 60 (ed. B. L. Jolliff, M. A. Wieczorek, C. K. Shearer, and C. R. Neal), pp. 365-518.

Rieu R., Allen P.A., Etienne J L, Cozzi A., and Wiechert U. , A Neoproterozoic glacially influenced basin margin succession and 'atypical' cap carbonate associated with bedrock palaeovalleys, Mirbat area, southern Oman. Precambrian Research18, 471-496.

C.J. Dobmeier, S Lütke, K. Hammerschmidt, K. Mezger,) Emplacement and deformation of the Vinukonda meta-granite (Eastern Ghats, India) – Implication fort he geological evolution of peninsular India and for Rodinia reconstaruction. Precambrian Research, 146(3-4): 165 – 178.

D. Upadhyay, M.M. Raith, K. Mezger, K. Hammerschmidt, Mesoproterozoic rift-related alkaline magmatism at Elchuru, Prakasam Alkaline Province, SE India. Lithos (2006)

J. Babist, M.R. Handy, M. Konrad-Schmolke, K. Hammerschmidt, Pre-collisional, multistage exhumation of subducted continental crust - the Sesia Zone, Western Alps. Tectonics 25, TC6008, doi:10.1029/2005TC001927.

Shearer C.K., Hess P.C., Wieczorek M.A., Pritchard M.E., Parmentier E.M., Borg L.E., Longhi J., Elkins-Tanton L.T., Neal C.R., Antonenko I., Canup R.M., Halliday A.N., Grove T.L., Hager B.H., Lee D.C., and  Wiechert U., Thermal and Magmatic Evolution of the Moon. In New Views of the Moon, Vol. 60 (ed. B.L. Jolliff, M.A. Wieczorek, C.K. Shearer, and C.R. Neal), pp. 365-518. 


Fehr M. A., Rehkämper M., Halliday A. N., Wiechert U., Hattendorf B., Günther D., Ono S., and Rumble III D., Tellurium isotopes in meteorites and Archean sulfides - A search for effects resulting from stellar nucleosynthesis, 126Sn decay and mass independent fractionation. Geochim. Cosmochim. Acta, 69, 21,5099-5112.

Glodny, J., Ring, U., Kühn, A., Gleissner, P., Franz, G., Crystallization and very rapid exhumation of the youngest Alpine eclogites (Tauern Window, Eastern Alps) from Rb/Sr mineral assemblage analysis. Contributions to Mineralogy and Petrology 149, 699-712.

Potter E.-K., Stirling C.H., Wiechert U., H., Halliday A.N., and Spötl C., Uranium-series dating of corals in situ using laser ablation MC-ICPMS. Int. J. Mass Spec. 240, 27-35.

Tomascak, P. B., Brown, M., Solar, G. S., Becker, H., Centorbi, T. L., and Tian, J., Geochemistry of Acadian Granites: Source Contributions to Magmatism Near the Laurentian Border, New Hampshire and Western Maine, USA. Lithos 80, 75-99. 

Ph.D. Theses


Kadlag, Yogita: Siderophile element constraints on the origin of components of unequilibrated chondrites.

Hohl, Simon V.: Multi-proxy analysis of Ediacaran shallow and deep water carbonates, Yangtze platform, South China.


Ebert, Matthias: Geochemical interaction between projectile and target in hypervelocity cratering experiments.

Schneider, Susanne: Exhumation mechanisms of middle and lower crust in the Western Tauern Window, Eastern Alps.

Wang Zaicong: Constraints on mantle processes and late accretion from chalcogen and highly siderophile element abundances in rocks from the Earth’s mantle


Lieger Daniel: Structural and Geochemical Analyses of fragment-rich pseudotachylite bodies and the Vredefort Granophyre of the Vredefort Impact Structure, South Africa.


Fischer-Gödde, Mario: Highly siderophile elements in planetary materials as tracers for late accretion. 


van Acken, D.: Melt-Rock Interaction and Refertilization of Oceanic Lithosphere - a Highly Siderophile Element and Os Isotope Study, Totalp Massif, Switzerland. 


Wegmann, M.: Die Entwicklung des Rb/Sr-Isotopensystems in metamorphen Mikrostrukturen in Abhängigkeit von Temperatur, Druck und Mineralkomposition am Beispiel der Hochdruckmetamorphite von Südevia, Griechenland.  

M.Sc. Theses


Tüngerthal, Angelika: Nd- und Sr-Isotopenverhältnisse an Karbonatiten des Basalkomplexes von Ajui, Fuerteventura, Kanarische Inseln.

Wilckens, Frederike: On the Origin of Magnesium Isotope Variation in Waters and Sediments of Lake Bangong, Tibet Autonomous Region of China.


Friebel, Matthias: Isotopic constraints for sources and sinks of NOx in the city of Berlin.

Herzlieb, Steffen: Element- und Isotopenzusammensetzung von Karbonatgesteinen der Beckenfazies des Ediacariums der Yangtze Plattform (Südchina).

Uhlig, David: Magnesium und seine Isotope in der Sierra Nevada – Isotopenfraktionierung in der Verwitterungszone.


Barvencik, Sascha: Lithiumisotope in Flüssen und Seen auf dem Tibet-Plateau und Ihre Implikationen für die Verwitterung.

Weiske, Nicole: Die Karbonatite von Ajuy, Fuerteventura, Kanarische Inseln.


Ullman, Clemens, Vinzenz: „Magnesiumisotope in Elbe, Rhein und Donau und ihre Implikationen für Verwitterung und Kohlenstoffhaushalt“ Weynell, Marc „Isotopische Muster von Oberflächenwässern des östlichen und südlichen Tibet-Plateaus“.


Ziegler, Andreas „Bestimmung der Selengehalte mafischer und ultramafischer Referenzgesteine mit Isotopenverdünnung und ICP-MS” (M.Sc. Cemistry)


B.Sc. Theses


Giebner, Tanja: Fraktionierung hoch siderophiler Elemente in Komponenten des unäquilibrierten gewöhnlichen Chondrits QUE 97008.

Kühne, Philipp: Untersuchungen der Sr-Isotope an ausgewählten Laven des Meerfelder Maares, Westeifel.

Neukampf, Julia: Petrographie der Lapilli und Bomben aus dem Meerfelder Maar, Westeifel.

Wassermann, Nora: Quantitative Bestimmung der Haupt- und Spurenelementgehalte von biogenen Karbonaten mittels Plasmaquellen-Massenspektrometrie (ICP-MS).


Hoeltke, Michel: Durchschnittliche 187Os/188Os in Basalten, Pikriten, Komatiiten und Chromititen im Vergleich zur Modellzusammensetzung der Silikaterde.

Schubring, Franziska: Fraktionierung von Hauptelementen, Schwefel, Selen und Tellur in Komponenten des unäquilibrierten gewöhnlichen Chondrits QUE 97008.


Geißler, Danny: Zusammensetzung und Petrologie von Sulfiden in Mantelpyroxeniten.


Herzlieb, Steffen „Verteilungen der Seltenen-Erd-Elemente in Cap Karbonaten des Ediacariums der Yangtze Plattform (Südchina)”.

Kommescher, Sebastian „Re/Os Systematik und Verteilung hoch-siderophiler Elemente in einem Spinell-Pyroxenit aus dem Lanzo-Peridotit Massiv, Norditalien”.

Pfahl, Torsten „Isotopenzusammensetzung des Schwefels und Sauerstoffs in Sulfaten aus Donau, Elbe und Rhein“.

Uhlig, David „Lithiumisotope im Oberflächen- und Grundwasser des Panketals im NE von Berlin“.

Quiring, Manuel „Sr-Isotopen-Systematik in Karbonaten des Ediacariums der Yangtze-Plattform (Südchina)”.


Friebel, Matthias „CO2-Extraktion vs. BaCO3-Fällung des im Wasser gelösten Kohlendioxids und 13C/12C Isotopenanalytik“.

Wilckens, Frederike „Experimente zur Isotopenfraktionierung des Lithiums zwischen Wasser und Bentonit“.


Neldner, Kai „Kohlenstoffisotopenmuster in Karbonaten des Ediacariums der Yangtse-Plattform (Süd-China)”.


Wutzke, Corinna „Gold-, Rhodium- und Gehalte anderer Hochsiderophiler Elemente in Peridotiten”.


Meyer, Linda Caroline “Bestimmung von Gold-Konzentrationen in Peridotiten mit ICP-MS und Standardaddition”.

Weynell, Marc „SEE-Konzentrationen in Peridotiten und Pyroxeniten der schweizerischen Totalp“.