Papers in Peer-reviewed Scientific Journals
 

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 in press.

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 (Editorial).

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. (1996b) 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. (1996a) Crustal trace element and isotope signatures in garnet pyroxenites and megacrysts from garnet peridotite massifs from lower Austria, Journal of Petrology 37, 785-810.

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.
 

Manuscripts Submitted for Publication

Becker, H., and Walker, R. J. (2002) The 98Tc-98Ru and 99Tc-99Ru chronometers: new results on iron meteorites and chondrites. Submitted to Chemical Geology.

McDaniel, D. K., Walker, R. J., Hemming, S. R., Horan, M. F., Becker, H., and Grauch, R. I. (2002) Sources of Osmium to the Cenozoic Oceans: New Evidence from the 190Pt-186Os System. Submitted to Earth and Planetary Science Letters.

Brandon, A. D., Walker, R. J., Puchtel, I., Becker, H., Humayun, M., and Revillon, S. (2002) 186Os-187Os Systematics of Gorgona Island Komatiites: Implications for Early Growth of the Inner Core. Submitted to Geochimica et Cosmochimica Acta.

Abstracts

Becker, H. (2002) What controls the Re-Os systematics of altered mantle rocks? A case study on Jurassic ultramafic seafloor exposed in the Swiss Alps. Submitted to Workshop on Highly Siderophile Elements, Nancy (France).

Becker, H., Walker, R. J. (2002) Ru and Mo isotopic constraints on the scale of isotopic homogeneity in meteorites and their parent bodies. Submitted to Goldschmidt Conference Davos (Switzerland).

Becker, H., Walker, R. J. (2002) Ruthenium isotopic composition of terrestrial materials, iron meteorites and chondrites. XXXIII Lunar and Planetary Science Conference Houston Abstract 1018.

Becker, H. (2001) INVITED Element fluxes from subducted slabs: constraints from high-pressure metamorphic rocks. Transactions of the American Geophysical Union EOS 82.

Becker, H., Lorand, J-P., Carlson, R. W., Haase, K., Shirey, S. B. and Walker, R. J. (2001) Why do some mantle peridotites contain little osmium and iridium? Transactions of the American Geophysical Union EOS 82.

Becker, H. and Walker, R. J. (2001) The 98Tc-98Ru and 99Tc-99Ru chronometers: New results on iron meteorites and terrestrial Ru. Eleventh Annual V. M. Goldschmidt Conference.

Becker, H. (2000) High-Re/Os Components in Jurassic Oceanic Mantle: A case Study From the Totalp Peridotite Massif (Swiss Alps). Transactions of the American Geophysical Union EOS 81, F1340.

McDaniel, D. K., Walker, R. J., Hemming, S. R., Horan, M. F., Becker, H. (2000). 186Os/188Os evidence for a major organic-rich sedimentary source to the modern ocean. Geological Society of America Abstracts with Programs.

Becker, H., Haase, K., Walker, R. J. (2000) A High-Re/Os Component in the North Atlantic Asthenospheric Mantle. EOS 81, S428.

Becker, H., Walker, R. J. (2000) Positive 98Ru and 99Ru anomalies in iron meteorites. XXXI Lunar and Planetary Science Conference Houston.

Walker, R. J., Becker, H., Horan, M. (1999) Origin of the highly siderophile elements in Earth's upper mantle. AGU Fall Meeting, San Francisco.

Becker, H. (1999) Re and Os loss from subducted oceanic basalt and the Re budget of the continents. 9th V. M. Goldschmidt Conference, Cambridge, MA (USA).

Walker, R. J., Hemming, S. R., Becker, H., Hodgson, M. (1999) 186Os-187Os isotope systematics of Mn nodules and marine sediments. 9th V. M. Goldschmidt Conference, Cambridge, MA (USA).

Becker, H., Walker, R. J., MacPherson, G. J., Morgan, J. W. (1999) Re-Os Isotopic systematics of matrix, chondrules, metal and more CAIs from the Allende meteorite. XXX Lunar and Planetary Science Conference Houston.

Becker, H., Waight, T., Wiebe, R., Krogstad, E., Walker, R. J. (1998) Sr-Nd Isotopic Constraints on Interaction of Mafic and Felsic Magma in the Cadillac Mountain Intrusive Complex (Maine). Transactions of the American Geophysical Union EOS  79, F998.

Becker, H. (1998) Re-Os Fractionation in Subducted Oceanic Crust Inferred From Re and Os Abundances in Eclogites and Metasediments. Transactions of the American Geophysical Union EOS  79, S380.

Becker, H., Walker, R. J., Grossman, J. N., Grossman, L., MacPherson, G. J., Morgan, J. W., Simon, S. B. (1998) Re-Os isotopic systematics of a CAI from the Allende meteorite. XXIX Lunar and Planetary Science Conference Houston.

Becker, H., Shirey, S. B., and Carlson, R. W. (1997) Sediment-derived Os in Garnet Pyroxenites From a Paleozoic Convergent Plate Margin (Lower Austria), Transactions of the American Geophysical Union EOS  78, F840.

Becker, H., and Carlson, R. W. (1997) Constraints from U-Th-Pb-Nd-Sr systematics of Paleozoic garnet pyroxenites on sediment-altered MORB-mantle mixing in arc magma petrogenesis. In: Seventh V. M. Goldschmidt Conference Tucson, LPI Contribution No. 921, Lunar and Planetary Institute, Houston, 22.

Becker, H., and Carlson, R. W. (1997) Assessing trace-element fluxes in island arc systems using ratios of highly incompatible elements in eclogites. In: Seventh V. M. Goldschmidt Conference Tucson, LPI Contribution No. 921, Lunar and Planetary Institute, Houston, 21-22.

Becker, H., Shirey, S. B., and Carlson, R. W. (1997) Constraints from garnet pyroxenites and peridotites on Re-Os fractionation during reaction of magma with the lithosphere beneath a Paleozoic convergent plate margin. EAG-Workshop 1997, Mainz (Germany) "The Origin and Fractionation of Highly Siderophile Elements in the Earth's Mantle", 18-19.

Becker, H., Carlson, R. and Jochum, K. P. (1996) Eclogites as a Monitor for Trace Element Fractionation During Devolatilization of Subducted Basaltic Crust, Transactions of the American Geophysical Union EOS  77, F784.

Brandon, A. D., Becker, H., Carlson, R. and Shirey, S. (1996) Isotopic Evidence for Metasomatism in Mantle Xenoliths from Simcoe, Washington, USA: Implications for Fluid and Crustal Recycling in Volcanic Arcs, Transactions of the American Geophysical Union EOS  77, F842.

Becker, H. (1996) Major and Trace Element Composition of Veins in High-Pressure Rocks and Element Partitioning During Devolatilization of Subducted Basaltic Crust, Transactions of the American Geophysical Union EOS  77, S290.

Becker, H. and Wenzel, T. (1996) Glimmerite Veins in High-pressure Rocks from Lower Austria - Clues for the Origin of High-K Magmas in Orogenic Belts, Journal of Conference Abstracts 1 (1), 53.

Becker, H. (1995) Composition of deep lithosphere of a Paleozoic convergent plate margin: evidence from garnet bearing high-temperature peridotite massifs from lower Austria, Proceedings of the 2nd International Workshop on Orogenic Lherzolites and Mantle Processes Granada, Spain , 3.

Becker, H. and Mezger, K. (1995) New geochronological results bearing on the age of high pressure metamorphism in the central Alps, Terra Abstracts 7, 380.

Becker, H. (1994) Geochemie von Hochtemperatur-Granatperidotitkomplexen aus Niederösterreich (südliche Böhmische Masse): Krustensignaturen in der unteren Lithosphäre, European Journal of Mineralogy 6 Beiheft, 21.

Becker, H. (1994) Geochemistry of high-temperature garnet peridotite complexes from Lower Austria (Southern Bohemian Massif): Crustal signatures in the lower lithosphere, Mineralogical Magazine 58A, 67-68.

Becker, H. (1993) Contrasting origin of Variscan high-P granulites and high-T peridotites (Bohemian massif): evidence from Sm-Nd garnet ages, Terra Abstractts 5, 380.

Becker, H. (1992) Garnet peridotite and eclogite Sm-Nd mineral ages from the Lepontine dome (Ticino, Switzerland): New evidence for an Eocene high pressure metamorphism in the Central Alps, European Journal of Mineralogy 4 Beiheft, 22.

Becker, H. and Altherr, R. (1991) K-feldspar exsolution lamellae in clinopyroxenes from a calcsilicate marble: First evidence for ultra-high P metamorphism of crustal rocks in the Moldanubian zone of the Bohemian massif, European Journal of Mineralogy  3 Beiheft, 21.

Becker, H. and Altherr, R. (1991) P-T evolution of granulites, garnet pyroxenites and garnet-bearing peridotites in the Moldanubian Gfühl unit in Lower Austria, Geological Workshop Moravian Windows, Proceedings of the Czech Geological Survey, 34.

Becker, H. and Altherr, R. (1991) Al-rich sapphirine in a high-P charnockite: reaction textures and P-T evolution, Terra Abstracts 3, 437.

Becker, H. and Altherr, R. (1990) P-T-Geschichte von Granuliten, Granat-Pyroxeniten und Mantel-Peridotiten der Gföhler Einheit im Moldanubikum des niederösterreichischen Waldviertels, European Journal of Mineralogy 1 Beiheft, 19.