Rapid determination of Pb isotopes to define Precambrian allochthonous domains: An example from West Greenland

Geology

Volumn 33, Issue 12, 2005, Pages 953-956

  Connelly, James N ^a   Thrane, Kristine ^b  

^a UNIVERSITY OF TEXAS AT AUSTIN   (United States)

^b UNIVERSITY OF COPENHAGEN   (Denmark)

Author keywords

ICP MS; Laser ablation; Nagssugtoqidian; North Atlantic; Pb isotopes; Rinkian; West Greenland

Indexed keywords

EPOXY MOUNTS; FAUNA; LEAD ISOTOPES; OROGENS; ROCK SLABS;

COMPOSITION; FELDSPAR; INDUCTIVELY COUPLED PLASMA; ISOTOPES; LASER ABLATION; LEAD; MASS SPECTROMETRY; ROCKS;

STRUCTURAL GEOLOGY;

ANALYTICAL METHOD; CRATON; FELDSPAR; LEAD ISOTOPE; OROGENY; PRECAMBRIAN;

ARCTIC; GREENLAND; WEST GREENLAND;

EID: 29144445201     PISSN: 00917613     EISSN: 00917613     Source Type: Journal    
DOI: 10.1130/G21720.1     Document Type: Article

References (18)

1. Árting, U., 2004, A petrological study of basic dykes and sills of assumed Palaeoproterozoic age in central West Greenland [M.S. thesis]: Copenhagen, Denmark, University of Copenhagen, 112 p.
2. Connelly, J.N., and Mengel, F.C., 2000, Evolution of Archean components in the Paleoproterozoic Nagssugtoqidian orogen, West Greenland: Geological Society of America Bulletin, v. 112, p. 747-763.
3. Connelly, J.N., Thrane, K., Krawiec, A.W., and Garde, A.A., 2005. Linking the Palaeoproterozoic Nagssugtoqidian and Rinkian orogens through the Disko Bugt region of West Greenland: Geological Society [London] Journal (in press).
4. Garde, A.A., and Steenfelt, A., 1999, Precambrian geology of Nuussuaq and the area northeast of Disko Bugt, in Kalsbeek, F. ed., Precambrian geology of the Disko Bugt region, West Greenland: Geology of Greenland Survey Bulletin, v. 181, p. 6-40.
5. Grocott, J., and Pulvertaft, T.C.R., 1990, The Early Proterozoic Rinkian Belt of central West Greenland, in Lewry, J.F., and Stauffer, M.R., eds., The Early Proterozoic Trans-Hudson orogen of North America: Geological Association of Canada, Special Paper 37, p. 443-463.
6. Hoffman, P.F., 1990, Dynamics of the assembly of northeast Laurentia in geon 18 (1.9-1.8 Ga): Geoscience Canada, v. 17, p. 222-226.
7. Kalsbeek, F., and Nutman, A., 1996, Anatomy of the Early Proterozoic Nagssugtoqidian orogen, West Greenland, explored by reconnaissance SHRIMP U-Pb zircon dating: Geology, v. 24, p. 515-518.
8. Loewy, S.L., and Connelly, J.N., 2004, Global Precambrian Pb isotopic signatures: Implications for mantle reservoirs: Annual Goldschmidt Conference, 14th, Copenhagen, June, 2004: Geochimica et Cosmochimica Acta, supplement, P. A569.
9. Loewy, S.L., Connelly, J.N., Dalziel, I.W.D., and Gower, C.F., 2004, Eastern Laurentia in Rodinia: Constraints from whole-rock Pb and U/Pb geochronology: Tectonophysics, v. 375, p. 169-197.
10. Stacey, J.C., and Kramers, J.D., 1975, Approximation of terrestrial lead isotope evolution by a two-stage model: Earth and Planetary Science Letters, v. 26, p. 207-221.
11. Steenfelt, A., 2004, Large scale stream sediment chemical distribution patterns reflecting crustal structure in West Greenland: Annual Goldschmidt Conference, 14th Copenhagen, June, 2004: Geochimica et Cosmochimica Acta, supplement P. A534.
12. Thrane, K., Baker, J., Connelly, J.N., and Nutman, A.P., 2005, Age, petrogenesis and metamorphism of the Prøven Igneous Complex, West Greenland: Contributions to Mineralogy and Petrology. v. 149, p. 541-555.
13. Tohver, E., Bettencourt, J.S., Tosdal, R., Mezger, K., Liete, W.B., and Payolla, B.L., 2004, Terrane transfer during the Grenville orogeny: Tracing the Amazonian ancestry of southern Appalachian basement through Pb and Nd isotopes: Earth and Planetary Science Letters. v. 228, p. 161-170.
14. Tosdal, R.N., 1996, The Amazonia-Laurentia connection viewed from the middle Proterozoic rocks in the central Andes, western Bolivia and northern Chile: Tectonics. v. 15, p. 827-842.
15. Van Gool, J.A.M., Kriegsman, L.M., Marker, M., and Nichols, G.T., 1999, Thrust stacking in the inner Nordre Strømfjord area, West Greenland: Significance for the tectonic evolution of the Paleoproterozoic Nagssugtoqidian Orogen: Precambrian Research, v. 93, p. 71-86.
16. Van Gool, J.A.M., Connelly, J.N., Marker, M., and Mengel, F.C., 2002, The Nagssugtoqidian Orogen of West Greenland: Tectonic evolution and regional correlations from a West Greenland perspective: Canadian Journal of Earth Sciences, v. 39, p. 665-686.
17. Van Kranendonk, R.J., St.-Onge, M.R., and Henderson, J.R., 1993, Palaeoproterozoic tectonic assembly of northeast Laurentia through multiple indentations: Precambrian Research, v. 63, p. 325-347.
18. Wardle, R.J., James, D.T., Scott, D.J., and Hall, J., 2002, The southeastern Churchill Province; synthesis of a Palaeoproterozoic transpressional orogen: Canadian Journal of Earth Sciences, v. 39, p. 639-663.