Robert Frei

Robert Frei

Professor

ORCID: 0000-0001-7708-9881

Publication year:
All
51 - 100 out of 381Page size: 50
  1. 1998
  2. Published

    A complete history of atmospheric lead deposition from 12,370 14C yr BP to the present recorded in a peat bog profile, Jura Mountains, Switzerland

    Shotyk, W., Weiss, D., Appleby, P. G., Cheburkin, A. K., Frei, Robert, Gloor, M., Kramers, J. D., Reese, S. & von der Knaap, W. O., 1998, In: Science. 281/5389, p. 1635-1640

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    A pre-3.74 Ga old tectono-metamorphic event in the outer Isua (Western Greenland) supracrustal belt: evidence from Pb stepwise leaching of sulfide-bearing quartz-tourmaline veins.

    Frei, Robert, Rosing, Minik Thorleif, Krogstad, E. J., Storey, M., Ulfbeck, D. G. & Albarede, F., 1998, In: EOS : Transactions. 1998 Fall Meeting 79, 45 Suppl., p. 932

    Research output: Contribution to journal › Journal article › Research

  4. Published

    Behaviour of Re-Os, Sm-Nd, and U-Pb systematics in hydrothermal ores. WRI-9

    Frei, Robert, Nägler, T. F., Schönberg, R. & Kramers, J. D., 1998, Water-Rock Interaction, Balkema/Rotterdam/Brookfield. Arehart, G. B. & Hulston, J. R. (eds.). p. 541-544

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  5. Published

    Granite-hosted gold mineralization in the Midlands greenstone belt: a new type of low-grade large scale gold deposit in Zimbabwe

    Buchholz, P., Herzig, P., Friedrich, G. & Frei, Robert, 1998, In: Mineralium Deposita. 33, p. 437-460

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    History of Athmospheric Lead Deposition Since 12'370 14C yr BP from a Peat Bog, Jura Mountains, Switzerland

    Shotyk, W., Weiss, D., Appleby, P. G., Cheburkin, A. K., Frei, Robert, Gloor, M., Kramers, J. D., Reese, S. & Van der Kaap, W. O., 1998, In: Kexue (Shanghai). 281, p. 1635-1640

    Research output: Contribution to journal › Journal article › Research

  7. Published

    Initial Sr and Nd isotope ratios of Early Archean mafic rocks, SW Greenland

    Krogstad, E. J., Frei, Robert, Rosing, Minik Thorleif, Storey, M. & Albarede, F., 1998, In: Abstract, EOS, Trans. American Geophysical Union, 1998. Fall Meeting 79, 45 Suppl., p. 932-933

    Research output: Contribution to journal › Journal article › Research

  8. Published

    Osmium and lead isotopes of rare OsIrRu minerals: A core-mantle boundary derivation?

    Bird, J. M., Meibom, A., Frei, Robert & Nägler, T. F., 1998, In: EOS : Transactions. v.79/45, p. F966

    Research output: Contribution to journal › Journal article › Research

  9. Published

    Pitfalls and new approaches in granulite chronometry: an example from the Limpopo Belt, Zimbabwe

    Kamber, B. S., Frei, Robert, Gibb, A. J. & O’Nions, R. K., 1998, In: Precambrian Research. 91, 3/4, p. 269-285

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Re-Os, Sm-Nd, U-Pb and stepwise Pb leaching isotope systematics in shear-zone hosted gold mineralization: genetic tracing and age constraints of crustal hydrothermal activity

    Frei, Robert, Nägler, T. F., Schönberg, R. & Kramers, J. D., 1998, In: Geochimica et Cosmochimica Acta. 62, p. 1925-1936

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Step-leach Pb-Pb dating of inclusion-bearing garnet and staurolite: with implications for Early Proterozoic tectonism in the Black Hills collisional orogen, South Dakota, United States

    Dahl, P. S. & Frei, Robert, 1998, In: Geology. 26, 2, p. 111-114

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Tracing the Indian Ocean Mantle Domain Through Time: Isotopic Results from Old West Indian, East Tethyan, and South Pacific Seafloor

    Mahoney, J. J., Frei, Robert, Tejada, M. L. G., Mo, X. X., Leat, P. T. & Nägler, T. F., 1998, In: Journal of Petrology. v.39/7, p. 1285-1306

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Unraveling the record of successive high grade events in the Central Zone of the Limpopo Belt using Pb single phase dating of metamorphic minerals

    Holzer, L., Frei, Robert, Barton jr., J. M. & Kramers, J. D., 1998, In: Precambrian Research. 87, p. 87-115

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. 1999
  15. Published

    Continued study of the origin of the cratonic upper mantle

    Bernstein, S., Kelemen, P. B., Hanghøj, K., Kelley, R., Blusztajn, J. & Frei, Robert, 1999, Italien. 10 p.

    Research output: Book/Report › Report › Research

  16. Published

    Controversial Pb-Pb and Sm-Nd isotope results in the early Archean Isua (West Greenland) oxide iron formation: Preservation of primary signatures versus secondary disturbances.

    Frei, Robert, Bridgewater, D., Rosing, Minik Thorleif & Stecher, O., 1999, In: Geochimica et Cosmochimica Acta. 63, p. 473-488

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Geochronology of the late Archean Razi and Chilimanzi suites of granites in Zimbabwe: implications for the late Archean tectonics of the Limpopo Belt and Zimbabwe Craton

    Frei, Robert, Blenkinsop, T. G. & Schönberg, R., 1999, In: South African Journal of Geology. 102, p. 55-63

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Late Archaean metasomatism and kyanite formation in the >3700 Ma Isua supracrustals, West Greenland

    Rosing, Minik Thorleif & Frei, Robert, 1999, In: Journal of Conference Abstracts. 4(1), p. 144

    Research output: Contribution to journal › Conference abstract in journal › Research

  19. Published

    Osmium and lead isotopes of rare OsIrRu minerals: A core-mantle boundary derivation?

    Bird, J. M., Meibom, A., Frei, Robert & Nägler, T. F., 1999, In: Earth and Planetary Science Letters. 170, p. 83-92

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Scrambling of isotopic messages from our earliest ancestors: 13C variations in biogenic reduced carbon from the >3700 Ma Isua supracrustals, West Greenland

    Rosing, Minik Thorleif & Frei, Robert, 1999, In: Journal of Conference Abstracts. 4(1), p. 259

    Research output: Contribution to journal › Conference abstract in journal › Research

  21. Published

    The Nd and Hf isotopic evolution of the mantle through the Archean. Results from the Isua supracrustals, West Greenland, and from the Birimian terranes of West Africa

    Blichert-Toft, J., Albarede, F., Rosing, Minik Thorleif, Frei, Robert & Bridgewater, D., 1999, In: Geochimica et Cosmochimica Acta. 63, p. 3901-3914

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    The Wiedemann Fjord Mantle Xenoliths, a Unique Record of Cratonic Mantle Formation by Melt Depletion in the Archean

    Hanghøj, K., Keleman, P. B., Bernstein, S., Blusztajn, J. & Frei, Robert, 1999, In: EOS Trans. Am. Geophys. Union. Vol. 81, p. 1078

    Research output: Contribution to journal › Conference abstract in journal › Research

  23. Published

    The timing of high-temperature retrogression in the Reynolds Range, central Australia: Constraints from single mineral Pb-Pb dating

    Buick, I. S., Frei, Robert & Cartwright, I., 1999, In: Contributions to Mineralogy and Petrology. 135, p. 244-254

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Unraveling the tectono-metamorphic history in the Isua supracrustals (West Greenland): Mineral stepwise leaching evidence for early Archean metasomatic-metamorphic events.

    Frei, Robert, Rosing, Minik Thorleif, Krogstad, E. J., Storey, M. & Albarede, F., 1999, publisher. p. 91

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  25. Published

    Geochronology of the late Archaean Razi and Chilimanzi suites of granites in Zimbabwe: Implications for the late Archaean tectonics of the Limpopo Belt and Zimbabwe Craton

    Frei, Robert, Blenkinsop, T. G. & Schönberg, R., 1 Mar 1999, In: South African Journal of Geology. 102, 1, p. 55-63 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. 2000
  27. Published

    Getting out of the extreme: Possible indications of Pre-3700 Ma oxygenic photosynthesis from Isua, West Greenland. J. Conf. Abstr

    Rosing, Minik Thorleif & Frei, Robert, 2000.

    Research output: Contribution to conference › Conference abstract for conference › Research

  28. Published

    Gold occurrences and lead isotopes in Ketilidian Mobile Belt, South Greenland

    Stendal, H. & Frei, Robert, 2000, In: Transactions Institution of Mining and Metallurgy (Sektion B). 109, p. B6-B13

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Lead isotopic evidence for a mixed provenance for Roman water pipes from Pompeii

    Boni, M., Di Maio, G., Frei, Robert & Villa, I. M., 2000, In: Archaeometry. 42, p. 201-208

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. 2001
  31. Published

    Complex Sm-Nd and Lu-Hf isotope systematics of metamorphic garnets from the Isua Supracrustal Belt, West Greenland

    Blichert-Toft, J. & Frei, Robert, 2001, In: Geochimica et Cosmochimica Acta. 65, p. 3177-3187

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Elemental mapping using proton-induced X-rays

    Przybylowicz, W. J., Mesjasz-Pryzybylowicz, J., Pineda, C. A., Churms, C. L., Ryan, C. G., Prozesky, V. M., Frei, Robert, Slabbert, J. P., Padayachee, J. & Reimold, W. U., 2001, In: X-Ray Spectrometry. 30, p. 156-163

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    Enriched alkaline lavas within a depleted picrite seccession: melting of old lithosphere induced by passing asthenosphenic melts.

    Larsen, L. M., Pedersen, Asger Ken, Sundvoll, B. & Frei, Robert, 2001, In: Eleventh Annual V.M. goldschmidt Conference, Abstracts #3130. LPI Contribution. 1088, p. ?

    Research output: Contribution to journal › Conference abstract in journal › Research

  34. Published

    Geochemistry of the peat bog at Étang de la Gruyère, Jura Mountains, Switzerland, and its record of atmospheric Pb and lithogenic trace metals (Sc, Ti, Y, and REE) since 1237014C yr BP

    Shotyk, W., Weiss, D., Kramers, J. D., Frei, Robert, Cheburkin, A. K., Gloor, M. & Reese, S., 2001, In: Geochimica et Cosmochimica Acta. 65, p. 2337-2360

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. Published

    Geochronology of the Hout River Shear Zone and the metamorphism in the Southern Marginal Zone of the Limpopo Belt, Southern Africa

    Kreissig, K., Holzer, L., Frei, Robert, Villa, I. M., Kramers, J. D., Kröner, A., Smit, C. A. & van Reenen, D. D., 2001, In: Precambrian Research. 109, p. 145-174

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    Osmium isotopes in the Wiedemann Fjord mantle xenoliths: A unique record of cratonic mantle formation by melt depletion in the Archaean

    Hanghøj, K., Kelemen, P., Bernstein, S., Blusztajn, J. & Frei, Robert, 2001, In: Geochemistry, Geophysics and Geosystem. 2

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Priscoan (4.00-4.03 Ga) orthogneisses from northwestern Canada - by S.A. Bowring and I.S. Williams (2000): discussion

    Whitehouse, M., Nägler, T. F., Moorbath, S., Kramers, J. D., Kamber, B. S. & Frei, Robert, 2001, In: Contributions to Mineralogy and Petrology. 141, p. 248-250

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Response to "Comment on "The Nd and Hf isotopic evolution of the mantle through the Archean. Results from the Isua supracrustals, West Greenland, and from the Birimian terranes of West Africa" by Blichert-Toft et al. (1999)

    Albarede, F., Blichert-Toft, J., Frei, Robert & Rosing, Minik Thorleif, 2001, In: Geochimica et Cosmochimica Acta. 65, p. 2023-2025

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    The Palaeoproterozoic Kangerluluk gold-copper mineralization (Southeast Greenland): Pb and Nd isotopic constraints on its timing and genesis

    Stendal, H., Frei, Robert, Hamilton, M. A. & Mueller, W. U., 2001, In: Mineralium Deposita. 36, p. 177-188

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    The least radiogenic terrestrial leads: implications for the early Archean crustal evolution and hydrothermal-metasomatic processes in the Isua Supracrustal Belt (West Greenland)

    Frei, Robert & Rosing, Minik Thorleif, 2001, In: Chemical Geology. 181, p. 47-66

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Priscoan “4.00-4.03 Ga” orthogeneisses from northwestern Canada - by Samuel A. Bowring and Ian S. Williams: Discussion

    Whitehouse, M. J., Nagler, T. F., Moorbath, S., Kramers, J. D., Kambler, B. S. & Frei, Robert, 1 Jan 2001, In: Contributions to Mineralogy and Petrology. 141, 2, p. 248-250 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    Geochemistry of the peat bog at Etang de la Gruère, Jura Mountains, Switzerland, and its record of atmospheric pb and lithogenic trace metals (Sc, Ti, Y, Zr, and REE) since 12,370 14C yr bp

    Shotyk, W., Weiss, D., Kramers, J. D., Frei, Robert, Cheburkin, A. K., Gloor, M. & Reese, S., 14 Aug 2001, In: Geochimica et Cosmochimica Acta. 65, 14, p. 2337-2360 24 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. 2002
  44. Published

    A metamorphosed, early Archean chromitite from West Greenland: implications for the genesis of Archean anothositic chromitites

    Rollinson, H., Appel, P. & Frei, Robert, 2002, In: Journal of Petrology. 43, p. 2143-2170

    Research output: Contribution to journal › Journal article › Research › peer-review

  45. Published

    A multi-isotopic and trace element investigation of the Cretaceous-Tertiary boundary layer at Stevns Klint, Denmark - inferences for the origin and nature of siderophile and lithophile element geochemical anomalies

    Frei, Robert & Frei, K. M., 2002, In: Earth and Planetary Science Letters. 203, p. 691-708

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    Alkaline lithosphere-derived lavas within the Paleocene tholeiitic flood lava succession in West Greenland

    Larsen, L. M., Pedersen, Asger Ken, Sundvoll, B. & Frei, Robert, 2002, 25th Nordic Geological Winter Meeting. Reykjavik, Island, p. 122

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  47. Published

    Blyisotoper og deres anvendelse

    Frei, Robert, 2002, In: Varv. 4, p. 17-26

    Research output: Contribution to journal › Journal article › Research

  48. Published

    Evidence for an ancient, highly radiogenic osmium isotopic reservoir in Earth

    Meibom, A. & Frei, Robert, 2002, In: Kexue (Shanghai). 296, p. 516-518

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Hydrothermal - metasomatic and tectono-metamorphic processes in the Isua Supracrustal Belt (West Greenland): a multi-isotopic investigation of their effects on the Earth's oldest oceanic crustal sequence

    Frei, Robert, Rosing, Minik Thorleif, Waight, Tod & Ulfbeck, D. G., 2002, In: Geochimica et Cosmochimica Acta. 66, p. 467-486

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    New 207Pb-206Pb and 40Ar-39Ar ages from SW Montana, USA: constraints on the Proterozoic and Archean tectonic and depositional history of the Wyoming Province

    Roberts, H., Dahl, P., Kelly, S. & Frei, Robert, 2002, In: Precambrian Research. 117, p. 119-143

    Research output: Contribution to journal › Journal article › Research › peer-review

  51. Published

    Re-Os isotopic evidence for long-lived heterogeneity and equilibration processes in the Earth's upper mantle

    Meibom, A., Sleep, N. H., Chamberlain, C. P., Coleman, R. G., Frei, Robert, Hren, M. & Wooden, J. L., 2002, In: Nature. 419, p. 705-708

    Research output: Contribution to journal › Journal article › Research › peer-review

  52. Published

    The age of the earliest animal fossils

    Barfod, G. H., Albarède, F., Knoll, A. A., Shuhai, X., Trelouk, P., Frei, Robert & Baker, J. A., 2002, In: Earth and Planetary Science Letters. 201, p. 203-212

    Research output: Contribution to journal › Journal article › Research › peer-review

  53. Published

    The origin of phonolites and trachytes from the Col de Guéry area, le Mont-Dore, Massif Central, France

    Bernth, U., Brousse, R., Frei, Robert & Sørensen, H., 2002, In: Matematisk Fysiske Meddelelser - Kongelige Danske Videnskabernes Selskab. 50, p. 61

    Research output: Contribution to journal › Journal article › Research › peer-review

  54. Published

    New Lu-Hf and Pb-Pb age constraints on the earliest animal fossils

    Barfod, G. H., Albarède, F., Knoll, A. H., Xiao, S., Télouk, P., Frei, Robert & Baker, J., 13 Aug 2002, In: Earth and Planetary Science Letters. 201, 1, p. 203-212 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  55. Published

    Erratum: (Science (April 19) (516))

    Meibom, A. & Frei, Robert, 16 Aug 2002, In: Science. 297, 5584, 1 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

Previous 1 2 3 4 5 6 7 8 Next

ID: 11756