Education

1994             Dr. rer nat. (Geochemistry, summa cum laude),

                     Geochemistry Division of the MaxPlanck-Institut für Chemie,

                     Mainz and Universität Mainz, Germany

                     Dissertation Title: Cooling History and Geochemistry of High-temperature Garnet

                     Peridotite Complexes From Lower Austria (Southern Bohemian Massif)

                     Advisor: Prof. Dr. A. W. Hofmann

1990             Diplom (Mineralogy) Universität Karlsruhe, Germany

                     Advisor: Prof. Dr. R. Altherr

Professional Experience

Since 2004    C4-University Professor (Geochemistry) and Head of the Geochemistry Group at

                      Instiute of Geological Sciences, Freie Universität Berlin, Berlin, Germany

2004              Visiting Scientist, Lunar and Planetary Institute, Houston, TX, U.S.

2000-2004     Assistant Research Scientist, Department of Geology,

                      University of Maryland at College Park, MD, U.S.

1997-2000     Research Associate / Lab manager, Isotope Geochemistry Laboratory,

                      and Lecturer (1999-2000), Department of ,Geology,

                      University of Maryland at College Park, MD, U.S.

1995-1997     Postdoctoral Fellow, Department of Terrestrial Magnetism,

                      Carnegie Institution of Washington, Washington, D.C., U.S.

1994-1995     Postdoctoral Fellow, Geochemistry Division,

                      Max-Planck-Institut für Chemie, Mainz, Germany

1990-1993     Graduate Research Fellow, Geochemistry Division, Max-Planck-Institut für

                      Chemie, Mainz, Germany

1987-1990     Research Assistant, Department for Petrography and Geochemistry, Universität

                      Karlsruhe, Germany

Professional Activities

Department Council (2007-2015)

Dean of Research (2007-2011)

Contributions to “Dynamische Erde – Zukunftsaufgaben der Geowissenschaften” (2010, Geokommission, DFG)

Chair Geochemistry Section of the Deutsche Mineralogische Gesellschaft (2009-2011)

Co-chair of the Meeting of the Deutsche Mineralogische Gesellschaft in Berlin (2008)

Guest Editor and Member of the Associate Editorial Board of Chemical Geology

Reviewer for various funding organizations (NSF, NASA, NERC, FWF, DFG) and journals

Chair and Convener at AGU Fall meetings and Goldschmidt conferences

Awards and Fellowships

2004            Lunar and Planetary Institute Visiting Scientist Fellowship

1995-1997   Research Fellowship of the German Research Foundation

1995            NATO Postdoctoral Research Fellowship

1994-1995   Postdoctoral Research Fellowship of the Max-Planck-Society

1990-1993   Graduate Research Fellowship of the Max-Planck-Society

1988-1989   Studienstiftung des Deutschen Volkes Fellowship

Courses Given

Since 2004 at FU Berlin:

• Earth 1 and 2 segments on Earth in the Solar System and on Earth Systems 2 h and 4 h/semester
• Early Evolution of the Earth (MSc, 8 students 3 h/week)
• Geochemistry of Radiogenic Isotopes (BSc, MSc, 6-30 students) 4 h/week
• Meteorites and evolution of the terrestrial planets (MSc, 5-10 students) 3 h/week
• Seminar & Field course (BSc/MSc 6-14 students) Block course 7-12 days

Alternating topics:

 - Volcanology & magmatic processes (Eifel/Siebengebirge)

 - Lower crust and upper mantle (Northern Italy)

 - Ligurian ophiolites (Northern Italy)

- Mineral deposits in northern Germany

• Fundamentals of Geochemistry (BSc, about 70-90 students) 4 h/week
• Presentation Seminar (“Allgemeine Berufsvorbereitung” BSc, 20 students) 2008, 2010, 2012, 1-2 h/week
• The Earth 3 (Geochemistry) and 4 (Ore Deposits) BSc, 2004/2005
• Seminar Advances in Geochemistry (MSc, Doct.), 2 h/week, every semester
• Geochemistry, Hydrogeology & Mineralogy Joint Seminar (MSc, Doct.)
• Late Accretion onto Terrestrial Planets Seminar (every semester, since 2016)

1998-2003 at the University of Maryland, College Park:

• GEOL120 “Environmental Geology” (120 students), GEOL445 "Principles of Geochemistry" (10-20 students)
• Topical lectures and seminars GEOL489H BSc Honors Course
• Teaching assistant: GEOL212 "Planetary Geology", HONR279W "The Solar System", GEOL443 "Petrology of Igneous and Metamorphic Rocks".

Students and Graduate Advising

FU Berlin:

Completed theses and thesis reviews:

Doctoral: Ulli Raschke (2017, with Museum f. Naturkunde), Chunhui Li (2016, now China University of Sciene and Technology, Hefei), Simon Hohl (2015, now University of Nanjing), Matthias Ebert (2014, with Museum f. Naturkunde), Yogita Kadlag (2014), Zaicong Wang (2014, now China University of Geosciences Wuhan), Susanne Schneider (2014, now Bergakademie Freiberg), Daniel Lieger (2011, with Museum f. Naturkunde), Mario Fischer-Gödde (2010, now U. Köln), David van Acken (2009, now at iCRAG Dublin), Maja Wegmann (2006).

M.Sc.: Clemens Ullmann, Marc Weynell, Andreas Ziegler (Chemistry); Steffen Herzlieb, Mathias Friebel, Frederike Wilckens, Angelika Tüngerthal, Nicole Weiske, Sebastian Kommescher, Marie Küssner. Eva Iden, Philipp Kühne.

B.Sc.: Caroline Meier, Marc Weynell, Corinna Wutzke, Hannes Jahnke, Kai Neldner, Michel Hoeltke, Franziska Schubring, Tanja Giebner, Franziska Mangels, Steffen Herzlieb, Sebastian Kommescher, Manuel Quiring, Danny Geißler, Oliver Jäger, Lukas Karal, Jasmin Bischoff, Danila Wezel, Ina Schaffrath, Valeria Einfalt, Roxana Rohne, Pascal Kruttasch, Saskia Weitkamp, Linus Streicher, Vivian Ruck.

Current:

Doctoral students: Dennis Vanderliek, Franziska Schmid

Univ. of Maryland (1997-2004):

Instruction of undergraduate and graduate students in rock processing, clean lab and mass spectrometry procedures (Allison Gale, Amitava Gangopadhyay, Amy Gelinas, Paul Hackley, Michael Hodgson, David Cook, Eric Sampson, Gary Solar, Jinmei Tian).

Other Doctoral or MSc. Committees and Thesis Reviews (External)

David Cook (M. Sc. 2001, UMd), Mark Frank (Ph.D. 2001, UMd), Amitava Gangopadhyay (Ph.D. 2004, UMd), Christian Siebert (Dr. rer. nat. 2006, FUB), Katrin Stephan (Dr. rer. nat. 2006, FUB), Lukas Ackerman (Ph.D. 2008, Charles University, Prague), Sandra Meisel (Dr. rer. nat. 2011, FUB), Claudia Meyer (Dr. rer. nat. 2012, FUB), Samia Gurmani (Dr. rer. nat. 2012, FUB), Georg Spiekermann (Dr. rer. nat. 2012, FUB), Audrey Bertrand (Dr. rer. nat. 2013, FUB), Thomas Grant (Dr. rer. nat. 2014, FUB), Ben Yang (Dr. rer. nat. 2014, FUB), Marcus Oelze (Dr. rer. nat. 2015, FUB), Thomas Haber (Ph.D., 2016, ANU), Xiaojuan Sun (Dr. rer. nat. 2016, FUB), Michael Tatzel (Dr. rer. nat. 2016, FUB), Astrid Kowitz (Dr. rer. nat. 2016, FUB), Prescillia Morino (PhD 2017, Universite de Lorraine, Nancy), Christopher Hamann (Dr. rer. nat. 2018, FUB)

Analytical and Methodical Expertise

Main focus: analytical methods and sample preparation in plasma source and thermal ionization mass spectrometry.

At Max Planck-Institut für Chemie, Department of Terrestrial Magnetism, University of Maryland, and Astromaterials Research Group, Johnson Space Center, Houston: Positive and negative thermal ionization mass spectrometry (MAT 261, VG 354, Sector 54, NBS 6, 9, 12, 15” instruments), single and multi collector plasma mass spectrometry (Nu Plasma, Element 2), and the relevant element separation techniques such as ion exchange and solvent extraction (Rb-Sr, 147Sm-143Nd, U-Th-Pb, Re-Os, Pt-Os, Ru, Mo and W isotope systems, isotope dilution techniques for platinum group elements, Ba, K, Cs)

Since 2005 our group at FUB has set up the following techniques [1] 142Nd measurements in terrestrial rocks and in chondrites with the FUB TRITON TIMS, Sm isotopes in chondrites (Drs. K. Rankenburg and K. Hammerschmidt), [2] Li and Mg separation for stable isotope studies, Li isotope measurements on the Element XR single-collector ICP-MS at FUB, Mg isotope measurements in collaboration with R. Romer at GFZ-Potsdam (Dr. U. Wiechert), [3] Rb-Sr microgeochronology of drilled mica grains (K. Hammerschmidt), [4] Ba and Sr isotopic variation in primitive meteorites (Dr. F. Wombacher, K. Hammerschmidt). [5] determination of abundances of monoisotopic Rh and Au, other PGE and 187Os/188Os in the same sample aliquot at low and high abundances in crustal and mantle materials, meteorites and lunar rocks (Dr. M. Fischer-Gödde), [6] determination of abundances of chalcophile elements (S, Se, Te) in crustal and mantle materials and in meteorites by isotope dilution (A. Ziegler, F. Wombacher, T. Gawronski, Z. Wang), [7] Re-Os geochronology of black shales and sulfides from ore deposits (B. Zhu, T. Gawronski), [8] REE and other trace elements in mantle rocks and marine carbonates (F. Wombacher, M. Fischer-Gödde, W. Bäro, S. Hohl), [9] Major cation composition of dissolved and suspended load in river water by ICP-MS (C. Ullmann), [10] Multi element techniques to determine the composition of metal, sulphides and phosphides from iron meteorites by ICP-MS (C. Meyer, F. Wombacher).

Field Experience

Europe (Bohemian Massif, Black Forest, Vosges, Münchberg Gneiss Massif, Swiss and Italian Alps, central Spain)

the U.S. (Maine and New Mexico) and China (Yangtze Platform).

Past and Present external Collaborators

A. Brandon (U. Houston), J. Brenan (U. Toronto), G. Brey (U. Frankfurt), M. Brown (UMD), R.

Carlson (DTM/CIW, Postdoc advisor), C. Dalpe (RCMP, Ottawa), M. Dorais (Brigham Young

U.), B. Ellwood (LSU), G. Franz (TU Berlin), D. Frost (BGI Bayreuth), Q. Guo (Beijing); J.

Grossman (USGS, Reston), S. Gao (Wuhan, China), K. Haase (U. Erlangen), M. Horan

(DTM/CIW), S. Jiang (Nanjing), K. P. Jochum (MPI Mainz), E. Krogstad (Copenhagen), J. P.

Lorand (MNH, Paris), G. MacPherson (Smithsonian Institution, Washington DC), W.

McDonough (UMD), T. Meisel (Leoben), J. Morgan (retired), R. Romer (GFZ), R. Rudnick

(UMD), S. Shirey (DTM/CIW), P. Tomascak (SUNY Oswego), Riccardo Tribuzio (U. Pavia), T.

Waight (Copenhagen), R. Walker (UMD, Postdoc advisor), T. Wenzel (U. Tübingen), R. Wiebe

(Franklin & Marshall College).

Grants

2016:              

Funding for a Transregional Collaborative Research Center “Late Accretion onto Terrestrial Planets” (TRR 170/1) Speaker, DFG Subproject A01 “Chronometric investigations of ancient lunar impact rocks” PI w. E. Scherer

• Subproject A03 “Ancient bombardment of the inner solar system – Reinvestigation of the “fingerprints” of different impactor populations” PI (replacement for T. Kneissl)
• Subproject B01 “Origin of fractionations of highly siderophile and siderophile volatile elements in lunar rocks and in the Earth” PI
• Subproject B02 “Stable isotope fractionation of S, Te and Pd and the roles of core formation and late accretion on siderophile volatile elements in the Earth” PI w. T. Kleine, S. Klemme
• Subproject MGK „Integrated Research Training Group Planetary Sciences“ PI
• Subproject Z “Coordination Project” PI

Travel funds for key note speakers. 79. Annual Meeting of the Meteoritical Society in Berlin (14. 08. – 17. 08. 2016) PI, DFG

2013-2015       

• Origin of the depletion of siderophile volatile elements in Earth, Mars and the aubrite parent body PI, DFG
• Re-Os geochronology and abundances of highly siderophile elements in ancient lunar impact rocks PI, DFG

2014-2015       

• Cr iotope variations in components of chondrites PI, DFG-SPP 1385

2012-2013     

• Highly siderophile element abundances in components of chondrites PI, DFG-SPP 1385

2011-2014:     

• Sr, Nd and Li isotopes in carbonates of the Yangtze Platform and from Kazakhstan as tracers for the Ediacaran and Cambrian weathering history. PI Subproject of DFG-Forschergruppe “The Precambrian-Cambrian Biosphere (R)evolution: Insights  from Chinese Microcontinents” (DFG-FOR 736/2)

2011-2012:    

• Fractionation of highly siderophile elements in the lower oceanic crust. PI, DFG-SPP 527 (IODP/ODP Infrastructure).

2010-2013:    

• Highly siderophile element geochemistry of mantle pyroxenites. PI, DFG

2010-2011:    

• Abundances and distribution of volatile trace elements in chondritic meteorites and their components. Co-PI with F. Wombacher (PI) and A. Bischoff. DFG-SPP 1385 “The first 10 million years of the solar system”

2008:              

• Highly Siderophile Elements as Tracers for Late Accretion. PI. DFG grant extension.

2007:              

• Travel funds for key note speakers. Antrag auf Reisekostenzuschüsse für ausländische Gastredner im Rahmen der 86. Jahrestagung der Deutschen Mineralogischen Gesellschaft in Berlin (14. 09. – 17. 09. 2008) PI, DFG

2007-2010:    

• U-Th-Pb Geochronology of Sediments from the Precambrian-Cambrian Transition, Yangtze Platform, China. PI Subproject of DFG-Forschergruppe  “The Precambrian-Cambrian Biosphere (R)evolution: Insights from Chinese Microcontinents” (DFG-FOR 736/1)

2005-2006:    

• Highly Siderophile Elements as Tracers for Late Accretion. PI, Subproject of DFG-SPP 1115 “Mars and the Terrestrial Planets”

2005:              

• HBFG: Acquisition of a high-resolution ICP mass spectrometer, Institut für Geologische Wissenschaften, Freie Universität Berlin. PI, DFG-peer reviewed.            
• HBFG: Acquisition of a thermal ionization mass spectrometer, Institut für Geologische Wissenschaften, Freie Universität Berlin. PI, DFG-peer reviewed.

2004:              

• Tungsten-182 as Tracer for Core-Mantle Interaction in the Earth. PI, USRA-Lunar and Planetary Institute, Subcontract 7/112003.

2003-2005:    

• Melt influx and the effects on Os-Sr-Nd isotopic systems and platinum group elements in Jurassic oceanic mantle (Totalp massif, Swiss Alps). PI, NSF-EAR.

2002-2004:    

• Collaborative Research: Constraining the highly siderophile element composition of the late veneer. Co-PI with R. J. Walker and M. F. Horan, NSF-EAR.

2001-2002:    

• Alteration or mantle origin of radiogenic osmium in pyroxenites and peridotites from Jurassic oceanic crust (Totalp Massif, Swiss Alps). PI, NSF-EAR.

2000-2001:    

• A Rhenium-Osmium study of alkaline basalts from Vesteris Seamount and the Jan Mayen area in the North Atlantic. Co-PI with R. J. Walker, NSF-OCE.

Outreach

2016:                    Outreach event on Impact Processes in the Solar System "Lange Nacht der Wissenschaften Berlin-Potsdam"

2008, 2010, 2011: Heavy metal contamination of tap water? - Interactive demonstration in the ICP-MS lab "Lange Nacht der Wissenschaften Berlin-Potsdam"

2006, 2007:           From rock sample to U-Pb age: how the age of a rock is determined - Interactive demonstration "Lange Nacht der WissenschaftenBerlin-Potsdam"

2010:                     Chemical classification of new iron meteorite finds from collectors, using techniques applied in our lab.

2008:                      Donation of samples for the new Earth Science exhibition of the Museum für Naturkunde Berlin

Editorial and Reviewing Activities for Journals

Since 2001:      Associate Editorial Board of Chemical Geology

1999:                Guest-Editor for Special Volume of Chemical Geology 'Interactions between slab and 

                         sub arc mantle: dehydration, melting and element transport in subduction zones'.

2017:                Guest-Editor for Special Issue of Geochimica et Cosmochimica Acta: Highly Siderophile

                         Element Constraints on Earth and Planetary Processes

Reviews for international journals:

American Mineralogist, Canadian Mineralogist, Chemical Geology, Contributions to Mineralogy and Petrology, Earth and Planetary Science Letters, Elements, Geochimica et Cosmochimica Acta, Geological Society of London Special Publications, Geologische Rundschau, Geology, Geophysical Research Letters, Journal of Metamorphic Geology, Journal of Petrology, Lithos, Nature, Science, Tectonophysics.

Reviewing and Consulting for Other Organizations

1995-present:  reviews of research proposals for the German Research Foundation (DFG), the Petrology & Geochemistry, Tectonics, Ocean Sciences and Instrumentation and Facilities Programs of the National Science Foundation, the NASA Cosmochemistry Program, the National Environment Research Council (UK), KAW (Sweden) and the Austrian Science Fund.

Judging of student papers presented at AGU meetings.

2009/2010:      Contributions to “Dynamische Erde – Zukunftsaufgaben der Geowissenschaften”

                        Strategieschrift der Geokommission der DFG

                        (www.geokommission.de/Dynamische_Erde.html).

2008:               Evaluation committee of the Earth Sciences unit at Universität Münster, Reviewer

                        for Mineralogy-Geochemistry

Chairing, Convening and Organizing Conferences, Workshops, Schools 

2018                Organization of Summer School “Origin of the Earth-Moon System”

                        (Burg Reichenstein, Germany)

2016                Organization of Winter School in Planetary

                        Geodynamics (Hodenhagen, Germany)

                        Co-chair, local and scientific organizing committee of the Annual Meeting of the

                        Meteoritical Society at Freie Universität Berlin.

2012:               Convenor and chair for Symposium ‘Tracing the evolution of the silicate Earth

                        using siderophile and chalcophile elements', Goldschmidt Conference 2012.

2010:               Chair of Symposium ‘Geochemistry of Chalcophile and Siderophile Elements'

                        11^th International Platinum Symposium, Sudbury.

                        Organization of the Geochemistry Section Meeting of the Deutsche Mineralogische

                        Gesellschaft at the Freie UniversitätBerlin.

2008:               Conference Chair (w. R. Abart) 86^th Annual Meeting and Centennial Celebration of

                        the Deutsche Mineralogische Gesellschaft at the Freie UniversitätBerlin

2007:               Convenor and chair for Symposium ‘Limits on Precision, Accuracy and Detection:

                        New Advances in Isotope and Trace Element Geochemistry',

                        Goldschmidt Conference 2007.

2001:               Session chair for Special Session ‘Trench to Subarc: Diagenetic and Metamorphic'

                        Mass Flux in Subduction Zones', AGU Fall Meeting 2001.

2000:               Session convener and chair for Special Session 'Recent advances in

                        Re-Os geochemistry', AGU Spring Meeting 2000.

1998:               Chair for Session V32B 'Basement Rocks and Their Intrusives', AGU Fall Meeting.

                        Chair for Symposium V51B 'P-T evolution of crustal rocks', AGU Spring Meeting.

1997:               Session convener and chair for Symposium V51B 'Material Transport During Dehydration

                        and Melting of Slabs and Metasomatism in the Subarc Mantle', AGU Fall Meeting.

 

Coordinated Research Programs and Platforms

 

2016-2019       Speaker CRC-TRR 170 Late Accretion onto Terrestrial Planets (DFG)

2008-2011:      Steering Committee of the Geo-X information and coordination platform of Berlin

                        Potsdam Earth Science institutions (www.geo-x.net)

2007:               Scientific Committee DFG SPP "The first 10 Million Years of the Solar

                        System, a Planetary Materials Approach" (SPP 1385)

 

University Committees and Service

 

2017-2019       Substitute member of the Extended Academic Senate of Freie Universität Berlin

2012-2018       Vice-chair of examinations committee, Admission of MSc applicants

2007-2011       Dean of Research (Prodekan für Forschung), responsible for matters of research

                        and graduate education (doctoral studies, admission and degrees) in the

                       Department of Earth Sciences. In charge of strategic planning (2010) and

                       preparation and organization of the department evaluation in 2009.

2017-2019      Department council (Fachbereichsrat)

2011-2012

2005-2009     

2005-2018      B.Sc/M.Sc curriculum committee (Studienkommission), development of new BSc

                        and MSc curricula

2005-2018      Various search and habilitation committees

 

Professional Societies

 

American GeophysicalUnion, Deutsche Mineralogische Gesellschaft, Geochemical Society

Geological Society of America, Meteoritical Society.

 

2009-2010:     Geochemistry Section Chair, Deutsche Mineralogische Gesellschaft

Publications

Wang, Z., Cheng,H., Zong K., Geng, X., Liu Y., Yang, J., Wu F., Becker, H., Foley, S., Wang C. Y. (2020): Metasomatized lithospheric mantle for Mesozoic giant gold deposits in the North China craton,Geology ; 48 (2): 169–173. DOI https://doi.org/10.1130/G46662.1.

Archer, G.J., Brennecka, G.A., Gleißner, P., Stracke, A., Becker, H., Kleine, T. (2019) Lack of late-accreted material as the origin of 182W excesses in the Archean mantle: Evidence from the Pilbara Craton, Western Australia. Earth and Planetary Science Letters 528, 115841. DOI https://doi.org/10.1016/j.epsl.2019.115841.

Chen, C., Dai, W., Wang, Z., Liu, Y., Li, M., Becker, H., Foley, S. F. (2019): Calcium isotope fractionation during magmatic processes in the upper mantle. Geochimica et Cosmochimica Acta. DOI https://doi.org/10.1016/j.gca.2019.01.031.

Gleißner, P. and H. Becker (2019): Origin of lunar fragmental matrix breccias - Highly siderophile element constraints. Meteoritics & Planetary Science, Vol. 1, pp. 21. DOI 10.1111/maps.13363.

Kadlag, Y., Becker, H. and Harbott, A. (2019): Cr isotopes in physically separated components of the Allende CV3 and Murchison CM2 chondrites: Implications for isotopic heterogeneity in the solar nebula and parent body processes. Meteorit Planet Sci, 54: 2116-2131. DOI 10.1111/maps.13375.

Kadlag, Y., Tatzel, M., Daniel, A., Becker, H. (2019): The origin of unequilibrated EH Frick chondrites – Constraints from in situ analysis of Si isotopes, major and trace elements in silicates and metal, Geochimica et Cosmochimica Acta. DOI https://doi.org/10.1016/j.gca.2019.09.010.

Mari, N., Riches, A.J.V., Hallis, L.J., Marrocchi, Y., Villeneuve, J., Gleissner, P., Becker, H., Lee, M.R. (2019): Syneruptive incorporation of martian surface Sulphur in the nakhlite lava flows revealed by S and Os isotopes and highly siderophile elements: implication for mantle sources in Mars. Geochimica et Cosmochimica Acta 266, 416-434. DOI https://doi.org/10.1016/j.gca.2019.05.025.

Zhu, M., Artemieva, N., Morbidelli, A., Yin, Q.-Z., Becker, H., Wünnemann, K. (2019): Reconstructing the late-accretion history of the Moon. Nature 571, 226–229. DOI https://doi.org/10.1038/s41586-019-1359-0.

Zou, Z., Wang, Z., Li, M., Becker, H., Geng, X., Hu, Z., & Lazarov, M. (2019): Copper isotope variations during magmatic migration in the mantle: Insights from mantle pyroxenites in Balmuccia peridotite massif. Journal of Geophysical Research: Solid Earth,124, 11130– 11149. DOI https://doi.org/10.1029/2019JB017990.

Van de Löcht, J., Hoffmann, J. E., Li, C., Wang, Z., Becker, H., Rosing, M. T., Kleinschrodt, R. and Münker, C. (2018) Earth’s oldest mantle peridotites show entire record of late accretion. Geology 46, 199-202.

Wang, Z., Lazarov, M., Steinmann, L. K., Becker, H., Zou, Z., Geng, X. (2018) The distribution of lead and thallium in mantle rocks: Insights from the Balmuccia peridotite massif (Italian Alps). American Mineralogist 103 (8), 1185-1199. DOI: 10.2138/am-2018-6423

Wang, Z., Liu, Y., Becker, H., Hoffmann, E., Chen, C., Zou, Z., Li, Y. (2018) Constant Cu/Ag in upper mantle and oceanic crust: Implications for the role of cumulates during the formation of continental crust. Earth and Planetary Science Letters DOI: 10.1016/j.epsl.2018.04.008

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.

Hohl, S. V., Becker, H., Jiang, S.-J., Ling, H-F., Guo, Q. Struck, U. (2017) Geochemistry of Ediacaran cap dolostones across the Yangtze Platform, South China: implications for diagenetic modification and seawater chemistry in the aftermath of the Marinoan glaciation. Journal of the Geological Society, https://doi.org/10.1144/jgs2016-145.

Hohl, S. V., Galer, S. J. G., Gamper, A. , H. Becker, H. (2017) Cadmium isotope variations in Neoproterozoic carbonates – A tracer of biologic production? Geochemical Perspectives 3, doi: 10.7185/geochemlet.1704.

Kadlag, Y., Becker, H. (2017). Origin of highly siderophile and chalcogen element fractionations in the components of unequilibrated H and LL chondrites. Geochemistry (Chemie der Erde) 77, 105-119.

Wang, Z., Becker, H. (2017a) Chalcophile elements in Martian meteorites indicate low sulfur content in the Martian interior and a volatile element-depleted late veneer. Earth and Planetary Science Letters. https://doi.org/10.1016/j.epsl.2017.01.023.

Wang, Z., Becker, H. (2017b) Silver contents and Cu/Ag ratios in Martian meteorites and the implications for planetary differentiation. Geochimica et Cosmochimica Acta 216, 96-114.

Becker, H., Dale. C. W. (2016) Re–Pt–Os Isotopic and Highly Siderophile Element Behavior in Oceanic and Continental Mantle Tectonites. In “Highly Siderophile and Strongly Chalcophile Elements” Reviews in Mineralogy & Geochemistry Vol. 81 (Eds. Harvey, J., Day, J.M.D.) Chapter 7, 369-440.

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. (2016) FeMnOx-1: A new microanalytical reference material for the investigation of Mn–Fe rich geological samples. Chemical Geology 432, 34-40.

Kadlag, Y., Becker, H. (2016a) ¹⁸⁷Re-¹⁸⁷Os systematics, highly siderophile element and S-Se-Te abundances in the components of unequilibrated L chondrites. Geochimica et Cosmochimica Acta, 225–246.

Kadlag, Y., Becker, H. (2016b) Highly siderophile and chalcogen element constraints on the origin of components of the Allende and Murchison meteorites. Meteoritics and Planetary Sciences, doi: 10.1111/maps.12653.

Wang, Z., Laurenz, V., Petitgirard, S., Becker, H. (2016) Earth’s moderately volatile element composition may not be chondritic: Evidence from In, Cd and Zn. Earth and Planetary Science Letters 435:136-146.

Hohl, S.V., Becker, H., Gamper, A., Jiang, S.-Y.,Wiechert, U., Yang, J.-Y., Wei, H.Z. (2015a). Secular changes of water chemistry in shallow-water Ediacaran ocean: Evidence from carbonates at Xiaofenghe, Three Gorges area, Yangtze Platform, South China. Precambrian Research, 270, 50–79.

Hohl, S.V., Becker, H., Herzlieb, S., Guo, Q. (2015b) 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., Becker, H. (2015) Fractionation of highly siderophile and chalcogen elements in components of EH3 chondrites. Geochimica et Cosmochimica Acta 161, 166-187.

Wang, Z., Becker, H. (2015a) Abundances of Ag and Cu in mantle peridotites and the implications for the behavior of chalcophile elements in the mantle. Geochimica et Cosmochimica Acta 160, 209-226.

Wang, Z., Becker, H., (2015b). 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 (2014) 110–121]. Earth and Planetary Science Letters 417, 164-166.

Wang, Z., Becker, H., (2015c). Fractionation of highly siderophile and chalcogen elements during magma transport in the mantle: Constraints from pyroxenites of the Balmuccia peridotite massif. Geochimica et Cosmochimica Acta 159, 244-263.

Wang, Z., Becker, H., Wombacher, F. (2015). 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. Geostandards and Geoanalytical Research 39, 185-208.

Peters, S. T. M., Münker C., Becker, H., Schulz, T. (2015) Comment on “Cosmogenic 180W Variations in Meteorites and Re-assessment of a Possible 184Os-180W Decay System” by Cook, D.L., Kruijer, T., Leya, I., Kleine, T. Geochimica et Cosmochimica Acta 169, 236-239.

Wang, Z., Becker, H. (2014) 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, doi: 10.1111/j.1751-908X.2013.00258.x.

Peters, S. T. M., Münker C., Becker, H., Schulz, T. (2013) Alpha-decay of ¹⁸⁴Os revealed by radiogenic ¹⁸⁰W in meteorites: Halflife determination and viability as geochronometer. Earth and Planetary Science Letters 391, 69-76.

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, in press.

Wang, Z., Becker, H. (2013) 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. (2013) 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. (2013) Re-Os geochronology of black shales from the Neoproterozoic Doushantuo Formation, Yangtze platform, South China. Precambrian Research, 225, 67-76.

Mann, U., Frost, D. J., Rubie, D. C., Becker, H., Audetat, A. (2012) 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.

Gleissner, P., Drüppel, K., Becker, H. (2012) 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.

Fischer-Gödde, M., Becker, H. (2012) 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.

Fischer-Gödde, M., Becker, H., Wombacher, F. (2011) Rhodium, gold and other highly siderophile elements in orogenic peridotites and peridotite xenoliths. Chemical Geology 280, 365-383.

Fischer-Gödde, M., Becker, H., Wombacher, F. (2010) Rhodium, gold and other highly siderophile element abundances in chondritic meteorites. Geochimica et Cosmochimica Acta 74, 356-379.

van Acken, D., Becker, H., Hammerschmidt, K. Walker, R. J., Wombacher, F. (2010) 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. (2010) 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.

van Acken, D., Becker, H., Walker, R. J. (2008) 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.

Becker, H., Horan, M. F., Walker, R. J., Lorand, J.-P., Gao, S., Rudnick, R.L. (2006) 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.

Tomascak, P. B., Brown, M., Solar, G. S., Becker, H., Centorbi, T. L., and Tian, J. (2005) Geochemistry of Acadian Granites: Source Contributions to Magmatism Near the Laurentian Border, New Hampshire and Western Maine, USA. Lithos 80, 75-99.

Becker, H., Carlson, R. W. and Shirey, S. B. (2004) Slab-derived osmium and isotopic disequilibrium in garnet pyroxenites from a Paleozoic convergent plate margin (lower Austria. Chemical Geology 208, 141-156.

McDaniel, D. K., Walker, R. J., Hemming, S. R., Horan, M. F., Becker, H., and Grauch, R. I. (2004) S     Sources of Osmium to the Modern Oceans: New Evidence from the 190Pt-186Os System. Geochimica et Cosmochimica Acta 68, 1243-1252.

Becker, H. and Walker, R. J. (2003) Efficient mixing of the solar nebula from uniform Mo isotopic composition of meteorites. Nature 425, 152-155.

Becker, H., and Walker, R. J. (2003) In search of extant Tc in the early solar system: 98Ru and 99Ru abundances in iron meteorites and chondrites. Chemical Geology 196, 43-56.

Brandon, A. D., Walker, R. J., Puchtel, I., Becker, H., Humayun, M., and Revillon, S. (2003) 186Os-187Os Systematics of Gorgona Island Komatiites: Implications for Early Growth of the Inner Core. Earth and Planetary Science Letters 206, 411-426.

Walker, R. J., Horan, M. F., Morgan, J. W., Becker, H. and Grossman, J. N. (2002) Comparative 187Re-187Os systematics of chondrites: implications regarding early solar system processes. Geochimica et Cosmochimica Acta 66, 4187-4201.

Becker, H., Dalpe, C. and Walker, R. J. (2002) High-precision Ru isotopic measurements by multi collector ICP-MS. The Analyst 127, 775-780.

Dorais, M. J., Wintsch, R. P., and Becker, H. (2001) The Massabesic gneiss complex, New Hampshire: A study of a portion of the Avalon terrane. American Journal of Science 301, 657-682.

Becker, H., Walker, R. J., MacPherson, G. J., Morgan, J. W. and Grossman, J. N. (2001) Rhenium-osmium systematics of calcium-aluminium-rich inclusions in carbonaceous chondrites. Geochimica et Cosmochimica Acta 65, 3379-3390.

Becker, H., Shirey, S. B., and Carlson, R. W. (2001) Effects of melt percolation on the Re-Os systematics of peridotites from a Paleozoic convergent plate margin. Earth and Planetary Science Letters 188, 107-121.

Becker, H. (2000) Re-Os fractionation in eclogites and blueschists and the implications for recycling of oceanic crust into the mantle. Earth and Planetary Science Letters 177, 287-300.

Becker, H., Jochum, K. P. and Carlson, R. W. (2000) Trace element fractionation during the dehydration of eclogites from high-pressure terranes and the implications for element fluxes in subduction zones. Chemical Geology , 163, 65-99.

Becker, H., Jochum, K. P. and Carlson, R. W. (1999) Constraints from high-pressure veins in eclogites on the composition of hydrous fluids in subduction zones. Chemical Geology 160, 291-308.

Brandon, A. D., Becker, H., Carlson, R. W., and Shirey, S. B. (1999) Isotopic constraints on  time scales and mechanisms of slab material transport in the mantle wedge: Evidence from  the Simcoe mantle xenoliths, Washington, USA. Chemical Geology , 160, 387-408. Draper, D. S., Brandon, A. D., Becker, H. (1999) Interactions between slab and sub-arc  mantle: Dehydration, melting and element transport in subduction zones. Chemical Geology 160, 251-253.

Becker, H., Wenzel, T. and Volker, F. (1999) Geochemistry of Glimmerite Veins in Peridotites from Lower Austria - Implications for the Origin of K-rich Magmas in Collision Zones, Journal of Petrology  40, 315-338.

Becker, H. (1997) Petrological constraints on the cooling history of high-temperature garnet peridotite massifs in lower Austria, Contributions to Mineralogy and Petrology 128, 272-286.

Becker, H. (1997) Sm-Nd garnet ages and cooling history of high-temperature garnet peridotites and high-pressure granulites from lower Austria, Contributions to Mineralogy and Petrology 127, 224-236.

Becker, H. (1996) Geochemistry of garnet peridotite massifs from lower Austria and the composition of deep lithosphere beneath a Paleozoic convergent plate margin, Chemical Geology 134, 49-65.

Becker, H. (1996) Crustal trace element and isotope signatures in garnet pyroxenites and megacrysts from garnet peridotite massifs from lower Austria, Journal of Petrology 37, 785810.

Becker, H. (1993) Garnet peridotite and eclogite Sm-Nd mineral ages from the Lepontine dome (Swiss Alps): new evidence for Eocene high-pressure metamorphism in the central Alps, Geology 21, 599-602.

Becker, H. and Altherr, R. (1992) Evidence from ultra-high-pressure marbles for recycling of sediments into the mantle. Nature 358, 745-748.

 

Published Books

One of many co-authors of “Dynamische Erde – Zukunftsaufgaben der Geowissenschaften” G. Wefer (Ed.) Strategieschrift der Geokommission der DFG, 367 pp.

Unpublished Thesis Work

Becker, H. (1994), Cooling history and Geochemistry of High-temperature Garnet Peridotite Complexes From Lower Austria (Southern Bohemian Massif). Unpublished doctoral thesis, Universität Mainz, 221 pp.

Becker, H. (1990), P-T-Geschichte von Granuliten, Granat-Pyroxeniten und Mantelperidotiten der Gföhler Einheit im Moldanubikum des Niederösterreichischen Waldviertels. Unpublished Diplomarbeit, Universität Karlsruhe, 273 pp.