U-Pb geochronology of 3810-3630 Ma granitoid rocks south of the Isua greenstone belt, southern West Greenland

Precambrian Research

Volumn 126, Issue 3-4, 2003, Pages 235-257

  Crowley, J L ^a,b  

^a MEMORIAL UNIVERSITY OF NEWFOUNDLAND   (Canada)

^b MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

Archaean; Gneiss; Greenland; Isua greenstone belt; U Pb geochronology; Zircon

Indexed keywords

AMPHIBOLE; LEAD; TITANIUM; URANIUM; ZIRCONIUM;

ARCHEAN; GEOCHRONOLOGY; GNEISS; GRANITOID; GREENSTONE BELT; ZIRCON;

CHRONOLOGY; CONFERENCE PAPER; CRYSTALLIZATION; GEOLOGY; GRANITE; GREENLAND; OSCILLATION; ROCK; VOLCANO;

ARCTIC; GREENLAND; ISUA GREENSTONE BELT;

EID: 0346850667     PISSN: 03019268     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0301-9268(03)00097-4     Document Type: Conference Paper

References (40)

1. Allaart, J.H. (Compiler), 1982. Geologic Map of Greenland, Frederikshåb Isblink-Søndre Strømfjord. Grønl. Geol. Unders., Copenhagen.
2. Appel, P.W.U., Fedo, C.M., Moorbath, S., Myers, J.S., 1998. Recognisable primary volcanic and sedimentary features in a low-strain domain of the highly deformed, oldest known (∼3.7-3.8 Gyr) Greenstone Belt, Isua, West Greenland. Terra Nova 10, 57-62.
3. Baadsgaard, H., 1983. U-Pb isotope systematics on minerals from the gneiss complex at Isukasia, West Greenland. Grønl. Geol. Unders. Rep. 112, 35-42.
4. Blichert-Toft, J., Frei, R., 2001. Complex Sm-Nd and Lu-Hf isotope systematics in metamorphic garnets from the Isua supracrustal belt, West Greenland. Geochim. Cosmochim. Acta 65, 3177-3187.
5. Bridgwater, D., McGregor, V.R., 1974. Field work on the very early Precambrian rocks in the Isua area, southern West Greenland. Grønl. Geol. Unders. Rep. 65, 49-54.
6. Bridgwater, D., Keto, L., McGregor, V.R., Myers, J.S., 1976. Archaean gneiss complex of Greenland. In: Escher, A., Watt, W.S. (Eds.), Geology of Greenland. Grønl. Geol. Unders., Copenhagen, pp. 18-75.
7. Crowley, J.L., 2002. Testing the model of late Archean terrane accretion in southern West Greenland: a comparison of the timing of geological events across the Qarliit nunaat fault, Buksefjorden region. Precambrian Res. 116, 57-79.
8. Crowley, J.L., Myers, J.S., Dunning, G.R., 2002. The timing and nature of multiple 3700-3600 Ma tectonic events in granitoid rocks north of the Isua greenstone belt, southern West Greenland. Geol. Soc. Am. Bull. 114, 1311-1325.
9. Dubé, B., Dunning, G.R., Lauzière, K., Roddick, J.C., 1996. New insights into the Appalachian orogen from geology and geochronology along the Cape Ray fault zone, southwest Newfoundland. Geol. Soc. Am. Bull. 108, 101-116.
10. Frei, R., Rosing, M., 2001. The least radiogenic terrestrial leads implications for the early Archean crustal evolution and hydrothermal-metasomatic processes in the Isua Supracrustal Belt (West Greenland). Chem. Geol. 181, 47-66.
11. Frei, R., Bridgwater, D., Rosing, M., Stecher, O., 1999a. 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. Geochim. Cosmochim. Acta 63, 473-488.
12. Frei, R., Rosing, M., Krogstad, E.J., Storey, M., Albarede, F., 1999b. Unravelling the tectono-metamorphic history in the Isua Supracrustals (West Greenland): mineral Pb stepwise leaching evidence for early- and late-Archean metasomatic-metamorphic events. In: Abstract of the Ninth V.M. Goldschmidt Conference. Harvard University, Cambridge, Massachusetts, p. 91.
13. Friend, C.R.L., Nutman, A.P., Baadsgaard, H., Kinny, P.D., McGregor, V.R., 1996. Timing of late Archaean terrane assembly, crustal thickening and granite emplacement in the Nuuk region, southern West Greenland. Earth Planet. Sci. Lett. 142, 353-365.
14. Friend, C.R.L., Bennett, V.C., Nutman, A.P., 2002. Abyssal peridotites <3800 Ma from southern West Greenland: field relationships, petrography, geochronology, whole-rock and mineral chemistry of dunite and harzburgite inclusions in the Itsaq Gneiss Complex. Contrib. Miner. Petrol. 143, 71-92.
15. Hanmer, S., Greene, D.C., 2002. A modern structural regime in the Paleoarchean (∼3.64 Ga) Isua Greenstone Belt, southern West Greenland. Tectonophysics 346, 201-222.
16. Hanmer, S., Hamilton, M.A., Crowley, J.L., 2002. Geochronological constraints on Paleoarchean thrust-nappe and Neoarchean accretionary tectonics in southern West Greenland. Tectonophysics 350, 255-271.
17. Kamber, B.S., Moorbath, S., 1998. Initial Pb of the Amîtsoq gneiss revisited: implications for the timing of early Archaean crustal evolution in West Greenland. Chem. Geol. 150, 19-41.
18. Kamber, B.S., Moorbath, S., Whitehouse, M.J., 2001. The oldest rocks on Earth: time constraints and geological controversies. In: Lewis, C.L.E., Knell, S.J. (Eds.), The Age of the Earth: From 4004 BC to AD 2002. Geol. Soc., London, Spec. Pub. 190, pp. 177-203.
19. Komiya, T., Maruyama, S., Masuda, T., Nohda, S., Hayashi, M., Okamoto, K., 1999. Plate tectonics at 3.8-3.7 Ga: field evidence from the Isua Accretionary Complex, southern West Greenland. J. Geol. 107, 515-554.
20. Kretz, R., 1983. Symbols for rock forming minerals. Am. Miner. 68, 277-279.
21. Krogh, T.E., 1982. Improved accuracy of U-Pb ages by the creation of more concordant systems using an air abrasion technique. Geochim. Cosmochim. Acta 46, 637-649.
22. McGregor, V.R., 1973. The early Precambrian gneisses of the Godthåb district, West Greenland. Phil. Trans. Royal Soc. A273, 343-358.
23. McGregor, V.R., Friend, C.R.L., Nutman, A.P., 1991. The late Archaean mobile belt through Godthåbsfjord, southern West Greenland: a continent-continent collision zone? Geol. Soc. Den., Bulletin 39, Copenhagen.
24. Moorbath, S., O'Nions, R.K., Pankhurst, R.J., Gale, N.H., McGregor, V.R., 1972. Further rubidium-strontium age determinations on the very early Precambrian rocks of the Godthaab district, West Greenland. Nature 240, 78-82.
25. Moorbath, S., O'Nions, R.K., Pankhurst, R.J., 1975. The evolution of early Precambrian crustal rocks at Isua, West Greenland-geochemical and isotopic evidence. Earth Planet. Sci. Lett. 27, 229-239.
26. Myers, J.S., 2001. Protoliths of the 3.8-3.7 Ga Isua greenstone belt, West Greenland. Precambrian Res. 105, 129-141.
27. Nutman, A.P., 1986. The geology of the Isukasia region, southern West Greenland. Grønl. Geol. Unders. Bulletin 154, 80 pp.
28. Nutman, A.P., Bridgwater, D., 1986. Early Archaean Amîtsoq tonalites and granites of the Isukasia area, southern West Greenland: development of the oldest-known sial. Contrib. Miner. Petrol. 94, 137-148.
29. Nutman, A.P., Friend, C.R.L., Kinny, P.D., McGregor, V.R., 1993. Anatomy of an early Archaean gneiss complex: 3900-3600 Ma crustal evolution in southern West Greenland. Geology 21, 415-418.
30. Nutman, A.P., McGregor, V.R., Friend, C.R.L., Bennett, V.C., Kinny, P.D., 1996. The Itsaq gneiss complex of southern West Greenland the world's most extensive record of early crustal evolution (3900-3600 Ma). Precambrian Res. 78, 1-39.
31. Nutman, A.P., Bennett, V.C., Friend, C.R.L., Rosing, M.T., 1997. ∼3710 and >3790 Ma volcanic sequences in the Isua (Greenland) supracrustal belt structural and Nd isotope implications. Chem. Geol. 141, 271-287.
32. Nutman, A.P., Bennett, V.C., Friend, C.R.L., Norman, M.D., 1999. Meta-igneous (non-gneissic) tonalites and quartz-diorites from an extensive ca. 3800 terrain south of the Isua supracrustal belt, southern West Greenland: constraints on early crust formation. Contrib. Miner. Petrol. 137, 364-388.
33. Nutman, A.P., Bennett, V.C., Friend, C.R.L., McGregor, V.R., 2000. The early Archaean Itsaq Gneiss Complex of southern West Greenland: the importance of field observations in interpreting age and isotopic constraints for early terrestrial evolution. Geochim. Cosmochim. Acta 64, 3035-3060.
34. Nutman, A.P., Friend, C.R.L., Bennett, V.C., 2002. Evidence for 3650-3600 assembly of the northern end of the Itsaq Gneiss Complex, Greenland: implications for early Archaean tectonics. Tectonics 21, 5-1-5-28.
35. Parrish, R.R., 1987. An improved micro-capsule for zircon dissolution in U-Pb geochronology. Chem. Geol. 66, 99-102.
36. Parrish, R.R., Roddick, J.C., Loveridge, W.D., Sullivan, R.W., 1987. Uranium-lead analytical techniques at the Geochronology Laboratory. In: Radiogenic Age and Isotopic Studies, Report 1, Geol. Surv. Can. Pap. 87-2, pp. 3-7.
37. Rosing, M.T., Rose, N.M., Bridgwater, D., Thomsen, H.S., 1996. Earliest part of earth's stratigraphic record: a reappraisal of the >3.7 Ga Isua (Greenland) supracrustal sequence. Geology 24, 43-46.
38. White, R.V., Crowley, J.L., Parrish, R., David, K., 2000. Gate-crashing the billionth birthday party: intrusion of dyke swarms in the Isua region. Am. Geophys. Union Ann. Fall Meeting Abstracts with Programs, p. F1256.
39. Whitehouse, M.J., Kamber, B.S., Moorbath, S., 1999. Age significance of U-Th-Pb zircon data from early Archaean rocks of West Greenland-a reassessment based on combined ion-microprobe and imaging studies. Chem. Geol. 160, 201-224.
40. York, D., 1969. Least squares fitting of a straight line with correlated errors. Earth Planet. Sci. Lett. 5, 320-324.