Robert Frei
Professor
Geology
Øster Voldgade 10
1350 København K
- 1990
- Published
Origin and metallogenetic significance of the Tertiary Stratoni "Granodiorite", Chalkidiki, N. Greece: isotopic and chemical evidence
Kalogeropoulos, S. I., Frei, Robert, Nikolaou, M. & Gerouki, F., 1990, In: Bulletin of the Geological Society of Greece. 26, p. 23-38Research output: Contribution to journal › Journal article › Research › peer-review
- 1992
- Published
Isotope (Pb, Rb-Sr, S, O, C, U-Pb) geochemical investigations on Tertiary intrusives and related mineralizations in the Serbomacedonian Pb-Zn, Sb+Cu-Mo metallogenetic province in Northern Greece
Frei, Robert, 1992, Swiss Federal Institute of Technology (ETH) Zürich, Switzerland. 231 p.Research output: Book/Report › Ph.D. thesis › Research
- Published
Metamorphism and polygenesis of the Madem Lakkos polymetallic sulfide deposit, Chalkidiki, Greece: a discussion
Gilg, H. A., Frei, Robert, Kalogeropoulos, S. I. & Nicolaou, M., 1992, In: Economic Geology. 87, p. 1184-1193Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Discussions: Metamorphism and polygenesis of the madem lakkos polymetallic sulfide deposit, Chalkidiki, Greece-a discussion
Gilg, H. A., Frei, Robert, Kalogeropoulos, S. I. & Nicolaou, M., 1 Jul 1992, In: Economic Geology . 87, 4, p. 1184-1187 4 p.Research output: Contribution to journal › Comment/debate › Research › peer-review
- 1993
- Published
Formation of Alpine Au ~30 Ma ago: further results of the development of a dating method for native gold
Niedermann, S., Eugster, O., Frei, Robert, Krähenbühl, U., Kramers, J. D. & Thalmann, C., 1993, In: Meteoritics and Planetary Science. 28, p. 411-412Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Inherited crustal components in the porphyry copper style mineralization of Skouries, Northern Greece: implications from combined Pb-Sr isotopic results
Frei, Robert, 1993, In: Schweizerische Mineralogische und Petrographische Mitteilungen.Research output: Contribution to journal › Conference abstract in journal › Research
- 1994
- Published
A combined U-Pb-zircon, Pb-Pb-Nd isotope investigation on the Masirah ophiolite, Oman: indications for generation of acidic rocks by pure differentiation of a depleted mantle source
Nägler, T. F. & Frei, Robert, 1994, In: Mineralogical Magazine. p. 647-648Research output: Contribution to journal › Conference abstract in journal › Research
- Published
Chronology of magmatism and mineralization in the Kassandra mining area, Greece: The potentials and limitations of dating hydrothermal illites
Gilg, H. A. & Frei, Robert, 1994, In: Geochimica et Cosmochimica Acta. 58, p. 2107-2122Research output: Contribution to journal › Journal article › Research › peer-review
- Published
trapped noble gases in native gold: Radiogenic He and fission Xe in U-rich minerals accompanying placer gold
Niedermann, S., Eugster, O., Thalmann, C., Frei, Robert, Kramers, J. D., Bruno, L. & Hofmann, B., 1994, In: Lunar Planetary Science. 25, p. 997-998Research output: Contribution to journal › Journal article › Research › peer-review
- 1995
- Published
A new Pb-dating technique for gold deposits: examples from Zimbabwe
Frei, Robert, 1995.Research output: Contribution to conference › Conference abstract for conference › Research
- Published
Dating a Variscan pressure-temperature loop with staurolite
Frei, Robert, Biino, G. G. & Prospert, C., 1995, In: Geology. 23, p. 1095-1098Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Isotope systematics of kaolinization: Implications for dating of continental weathering
Gilg, H. A. & Frei, Robert, 1995, In: Berichte der Deutschen Mineralogischen Gesellschaft (Beihefte zum European Journal of Mineralogy). 7Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Lead concentrations and isotopic ratios in recent snow samples from high alpine sites
Döring, T., Frei, Robert, Gäggeler, H. W., Schwikowski, M. & Döscher, A., 1995. 4 p.Research output: Contribution to conference › Conference abstract for conference › Research
- Published
Noble gases, K, U, Th, and Pb in native gold
Eugster, O., Niedermann, S., Thalmann, C., Frei, Robert, Kramers, J. D., Krähenbühl, U., Liu, Y. Z., Hofmann, B., Boer, R. H., Reimold, W. U. & Bruno, L., 1995, In: Journal of Geophysical Research: Solid Earth. B12, p. 24’677-24’689Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Single mineral Pb-Pb dating
Frei, Robert & Kamber, B. S., 1995, In: Earth and Planetary Science Letters. 129, p. 261-268Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The evolution of the mineralizing fluid in the porphyry copper system of Skouries, NE Chalkidiki, (Greece): evidence from combined Pb-Sr and stable isotope data
Frei, Robert, 1995, In: Economic Geology . 90, p. 746-762Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The tectono-metamorphic event at 2 Ga in the Limpopo Belt and the resetting behaviour of chronometers at high temperature
Holzer, L., Kamber, B. S., Kramers, J. D. & Frei, Robert, 1995, Proterozoic Crustal and Metallogenic Evolution: Special Publication of the Geological Survey of Namibia. McManus, M. N. C. (ed.). Windhoek, p. 127-138Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
U, He and Ar isotope systematics in fluid inclusions of vein gold, quartz and carbonates from Brusson, Val d'Ayas (NW Italy): (U+Th)/He dating of gold and isotope tracing
Pettke, T., Frei, Robert, Kamensky, I. L., Kramers, J. D., Tolstikhin, I. N. & Villa, I. M., 1995, In: Boletin de la Sociedad Espanola del Mineralogia. 18, p. 181-182Research output: Contribution to journal › Journal article › Research › peer-review
- 1996
- Published
Age constraints of reduction spot formation from Permian red bed sediments, northern Switzerland, inferred from U-Th-Pb systematics
Hofmann, B. A. & Frei, Robert, 1996, In: Schweizerische Mineralogische und Petrographische Mitteilungen. 76, p. 235-244Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Archean and Proterozoic mineralization and tectonics at Renco Mine (Northern Marginal Zone, Limpopo Belt, Zimbabwe)
Blenkinsop, T. G. & Frei, Robert, 1996, In: Economic Geology. 91, p. 1225-1238Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Efficient N-TIMS Re-isotope measurements on outgassed Ta filaments: very low filament blanks determined by a "standard addition" approach
Frei, Robert, Nägler, T. F. & Meisel, T., 1996, In: International Journal of Mass Spectrometry. 76, p. L7-L10Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Isotope systematics in vein gold from Brusson, Val d'Ayaz (NW Italy). I: Pb/Pb evidence for a Piemonte metaophiolite Au source
Pettke, T. & Frei, Robert, 1996, In: Chemical Geology. 127, p. 11-124Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Mono-sample Pb-Pb dating of pyrrhotite and tourmaline: Archean vs. Proterozoic gold mineralization in Zimbabwe
Frei, Robert & Pettke, T., 1996, In: Geology. 24, p. 823-826Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Sr, Pb and Nd isotope studies and their bearing on the petrogenesis of the Jalor and Siwana complexes, Rajasthan, India: A reply
Dhar, S., Frei, Robert, Kramers, J. D., Nägler, T. F. & Kochhar, N., 1996, In: Journal of the Geological Society of India. 49, 4, p. 466-469Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Sr, Pb and Nd isotope studies and their bearing on the petrogenesis of the Jalor and Siwana complexes, Rajasthan, India
Dhar, S., Frei, Robert, Kramers, J. D., Nägler, T. F. & Kochhar, N., 1996, In: Journal of the Geological Society of India. 48, 2, p. 151-160Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Sulfur in bulk rock and igneous apatite: tracing mineralized and barren trends in intrusions
Frei, Robert, 1996, In: Schweizerische Mineralogische und Petrographische Mitteilungen. 127, p. 57-73Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The extent of inter-mineral isotope equilibrium: a systematic bulk U-Pb step leaching (PbSL) isotope study of individual minerals from the Tertiary granite of Jerissos (northern Greece)
Frei, Robert, 1996, In: European Journal of Mineralogy. 8, p. 1175-1189Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Timing between granitoid emplacement and associated gold mineralization: examples from the ca. 2.7 Ga Harare-Shamva Greenstone Belt, Northern Zimbabwe
Vinyu, M. L., Frei, Robert, Frei, Robert & Jelsma, H. A., 1996, In: Canadian Journal of Earth Sciences. 33, 7, p. 981-992Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Efficient N-TIMS rhenium isotope measurements on outgassed tantalum filaments: Very low filament blanks determined by a "standard addition" approach
Frei, Robert, Nägler, T. F. & Meisel, T., 1 Jan 1996, In: International Journal of Mass Spectrometry and Ion Processes. 153, 2-3, p. L7Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Mono-sample Pb-Pb dating of pyrrhotite and tourmaline: Proterozoic vs. Archean intracratonic gold mineralization in Zimbabwe
Frei, Robert & Pettke, T., 1 Jan 1996, In: Geology. 24, 9, p. 823-826 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Isotope systematics in vein gold from Brusson, Val d'Ayas (NW Italy), 1. Pb/Pb evidence for a Piemonte metaophiolite Au source
Pettke, T. & Frei, Robert, 10 Jan 1996, In: Chemical Geology. 127, 1-3, p. 111-124 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Archean and proterozoic mineralization and tectonics at the Renco mine (Northern Marginal Zone, Limpopo Belt, Zimbabwe)
Blenkinsop, T. G. & Frei, Robert, 1 Dec 1996, In: Economic Geology . 91, 7, p. 1225-1238 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1997
- Published
A new illite deposit near Le-Puy-en-Velay (France): Genesis and usage for waste encapsulation
Gilg, H. A., Haus, R. & Frei, Robert, 1997, Mineral Deposits: Research and exploration - where do they meet ? . Papunen, H. (ed.). CRC Press/Balkema, p. 717-720Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
- Published
An energy-dispersive Miniprobe Multielement analyzer (EMMA) for direct analysis of trace elements and chemical age dating of single mineral grains
Cheburkin, A. K., Frei, Robert & Shotyk, W., 1997, In: Chemical Geology. 135, p. 75-87Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Apparent controversies of Pb-Pb and Sm-Nd isotope systematics in the Archean Isua (West Greenland) BIF's: preservation of primary signatures vs. secondary disturbances
Frei, Robert, Bridgewater, D. & Rosing, Minik Thorleif, 1997, In: EOS : Transactions. 78, 46, p. F830Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Archean and Proterozoic mineralization and tectonics at Renco Mine (Northern Marginal Zone, Limpopo Belt, Zimbabwe): a reply
Blenkinsop, T. G. & Frei, Robert, 1997, In: Economic Geology. 92, p. 747-748Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Growth of subcontinental lithospheric mantle beneath Zimbabwe started at ~3.8 Ga: A Re-Os study on chromites
Nägler, T. F., Kramers, J. D., Kamber, B. S., Frei, Robert & Prendergast, M. D. A., 1997, In: Geology. 25, 11, p. 983-986Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Isotope dating of residual kaolin deposits in Europe (Tirschenreuth, Germany and St. Yrieix, France)
Gilg, H. A. & Frei, Robert, 1997, Energy and Mineral Resources for the 21st Century, Geology of Mineral Deposits, Mineral Economics: Proceedings of the 30th International Geological Congress. Rongfu, P. (ed.). Vol. 9. p. 123-133Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
- Published
Isotope systematics in vein gold from Brusson, Val d'Ayas (NW Italy). 2: (U+Th)/He and K/Ar in native Au and its fluid inclusions
Pettke, T., Frei, Robert, Kramers, J. D. & Villa, I. M., 1997, In: Chemical Geology. 135, p. 173-187Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Mantle-derived K-feldspar granites in oceanic crust (Masirah ophiolite, Sultanate of Oman)
Nägler, T. F. & Frei, Robert, 1997, In: Chemical Geology. 138, p. 119-126Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Mono-sample Pb-Pb dating of pyrrhotite and tourmaline: Archean vs. Proterozoic gold mineralization in Zimbabwe. A Reply
Frei, Robert & Pettke, T., 1997, In: Geology. 27, p. 670-671Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Pb stepwise leaching (PbSL) dating of garnet: addressing the inclusion problem
Schaller, M., Steiner, O., Studer, I., Frei, Robert & Kramers, J. D., 1997, In: Schweizerische Mineralogische und Petrographische Mitteilungen. 77, p. 113-121Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Single mineral dating by the Pb-Pb step-leaching method, assessing the mechanism
Frei, Robert, Villa, I. M., Nägler, T. F., Kramers, J. D., Przybylowicz, W. J., Prozesky, V. M., Hofmann, B. A. & Kamber, B. S., 1997, In: Geochimica et Cosmochimica Acta. 61, p. 393-414Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Studies of progressive leaching in single mineral Pb/Pb dating: Nuclear Microprobe Technology and Applications
Frei, Robert, Prozesky, V. M. & Przybylowicz, W., 1997, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. B 130, p. 676-681Research output: Contribution to journal › Journal article › Research › peer-review
- Published
U-Pb and Pb-Pb dating of diagenetic processes in black shales: True and false Pb-Pb isochrons
Liebetrau, V., Frei, Robert, Buchardt, B. & Israelson, C., 1997, In: EOS : Transactions. v.78/46, p. F381Research output: Contribution to journal › Journal article › Research
- Published
‘Plug in plug' Os distillation
Nägler, T. F. & Frei, Robert, 1997, In: Schweizerische Mineralogische und Petrographische Mitteilungen. 77, p. 123-127Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Growth of subcontinental lithospheric mantle beneath Zimbabwe started at or before 3.8 Ga: Re-Os study on chromites
Nägler, T. F., Kramers, J. D., Kamber, B. S., Frei, Robert & Prendergast, M. D. A., 1 Jan 1997, In: Geology. 25, 11, p. 983-986 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Archean and proterozoic mineralization and tectonics at the renco mine (northern marginal zone, limpopo belt, Zimbabwe)-a reply
Blenkinsop, T. G. & Frei, Robert, 1 Dec 1997, In: Economic Geology . 92, 6, p. 747-748 2 p.Research output: Contribution to journal › Comment/debate › Research › peer-review
- Published
Mono-sample pb-pb dating of pyrrhotite and tourmaline: Proterozoic vs. Archean intracratonic gold mineralization: reply
Frei, Robert & Pettke, T., 1 Dec 1997, In: Geology. 25, 7, p. 670-671 2 p.Research output: Contribution to journal › Letter › Research › peer-review
- 1998
- Published
3.9 Ga pillow basalts from Isua, Greenland: Pb isotopic evidence.
Storey, Michael, Krogstad, E. J., Frei, Robert, Albarede, F. & Rosing, Minik Thorleif, 1998, publisher. American Geophysical Union, 932 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
ID: 11756
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Large Igneous Province volcanism, ocean anoxia and marine mass extinction
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Mapping human mobility during the third and second millennia BC in present-day Denmark
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Tracing the dynamic life story of a Bronze Age Female
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