Do supercontinents introvert or extrovert?: Sm-Nd isotope evidence

Geology

Volumn 31, Issue 10, 2003, Pages 873-876

  Murphy, J Brendan ^a   Nance, R Damian ^b  

^a ST FRANCIS XAVIER UNIVERSITY   (Canada)

^b OHIO UNIVERSITY   (United States)

Author keywords

Extroversion; Introversion; Sm Nd isotopes; Supercontinent

Indexed keywords

LITHOSPHERE;

GEOLOGY; NEODYMIUM; SAMARIUM;

ISOTOPES;

GONDWANA; PANGAEA; PLATE TECTONICS; SAMARIUM-NEODYMIUM DATING; SUPERCONTINENT; TECTONIC EVOLUTION;

EID: 0242413965     PISSN: 00917613     EISSN: None     Source Type: Journal    
DOI: 10.1130/G19668.1     Document Type: Article

References (31)

1. Arndt, N.T., and Goldstein, S.L., 1987, Use and abuse of crust formation ages: Geology, v. 15, p. 893-895.
2. Black, R., Latouche, L., Liegeois, J.P., Caby, R., and Bertrand, 1994, Pan-African displaced terranes of the Tuareg shield (central Sahara): Geology, v. 22, p. 641-644.
3. Caby, R., Andreopoulos-Renaud, U., and Pin, C., 1989. Late Proterozoic arc/continent and continent/continent collision in the trans-Saharan belt: Canadian Journal of Earth Sciences, v. 26, p. 1136-1146.
4. Castro, A., Fernandez, C., de la Rosa, J., Moreno-Ventas, I., and Rogers, G., 1996. Significance of MORB-derived amphibolites from the Aracena metamorphic belt, southwest Spain: Journal of Petrology, v. 37, p. 235-260.
5. Cawood, P.A., McCausland, P.J.A., and Dunning, G.R., 2001, Opening Iapetus: Constraints from the Laurentian margin in Newfoundland: Geological Society of America Bulletin, v. 113, p. 443-453.
6. Dalziel, I., 1992, On the organization of American plates in the Neoproterozoic and the breakout of Laurentia: GSA Today, v. 2, no. 11, p. 238-241.
7. Davies, G.R., 1984, Isotopic evolution of the Lizard Complex: Geological Society [London] Journal, v. 141, p. 3-14.
8. DePaolo, D.J., 1988, Neodymium isotope geochemistry: An introduction: New York, Springer-Verlag, 187 p.
9. Dewey, J.F., and Bird, J.M., 1971, Origin and emplacement of the ophiolites suite: Appalachian ophiolites in Newfoundland: Journal of Geophysical Research, v. 76, p. 3179-3206.
10. de Wit, M., Jeffrey, M., Bergh, H., and Nicolaysen, L., 1988, Geological map of sectors of Gondwana reconstructed to their disposition ca. 150 Ma: Tulsa, Oklahoma, American Association of Petroleum Geologists, scale 1: 10,000,000.
11. Dostal, J., Caby, R., Keppie, J.D., and Maza, M., 2002, Neoproterozoic magmatism in Southwestern Algeria (Sebkha el Melah inlier): A northerly extension of the Trans-Saharan orogen: Journal of African Earth Sciences, v. 35, p. 213-225.
12. Gurnis, M., 1988, Large-scale mantle convection and the aggregation and dispersal of supercontinents: Nature, v. 322, p. 695-699.
13. Hoffman, P.F., 1991, Did the breakout of Laurentia turn Gondwana inside out?: Science, v. 252, p. 1409-1412.
14. Kröner, A., Pallister, J.S., and Fleck, R.J., 1992, Age of initial oceanic magmatism in the Late Proterozoic Arabian shield: Geology, v. 20, p. 803-806.
15. Kröner, A., Hegner, E., Collins, A.S., Windley, B.F., Brewer, T.S., Razakamanana, T., Pidgeon, R.T., 2000, Age and magmatic history of the Antananarivo block, central Madagascar, as derived from zircon geochronology and Nd isotopic systematics: American Journal of Science, v. 300, p. 251-288.
16. Kuster, D., and Liégeois, J.-P., 2001, Sr, Nd isotopes and geochemistry of the Bayuda Desert high grade metamorphic basement (Sudan): An early Pan-African oceanic convergent margin, not the edge of the East Saharan ghost craton: Precambrian Research, v. 109, p. 1-23.
17. Lenoir, J.-L., Kuster, D., Liégeois, J.-P., Utke, A., Haider, A., and Matheis, G., 1994, Origin and regional significance of late Precambrian and early Paleozoic granitoids in the Pan-African belt of Somalia: Geologische Rundschau, v. 83, p. 624-641.
18. MacLachlan, K., and Dunning, G., 1998, U-Pb ages and tectono-magmatic evolution of Middle Ordovician volcanic rocks of the Wild Bight Group, Newfoundland Appalachians: Canadian Journal of Earth Sciences, v. 35, p. 998-1017.
19. Murphy, J.B., and Nance, R.D., 1991, A supercontinent model for the contrasting character of Late Proterozoic orogenic belts: Geology, v. 19, p. 469-472.
20. Nance, R.D., Worsley, T.R., and Moody, J.B., 1986, Post-Archean biogeochemical cycles and long-term episodicity in tectonic processes: Geology, v. 14, p. 514-518.
21. Pallister, J.S., Stacey, J.S., Fischer, L.B., and Premo, W.R., 1988, Precambrian ophiolites of Arabia: Geologic settings, U-Pb geochronology, Pb isotopic characteristics and implications for continental accretion: Precambrian Research, v. 38, p. 1-54.
22. Pimental, M.M., Whitehouse, M.J., das G. Viana, M., Fuck, R.A., and Machado, N., 1997, The Mara Rosa arc in the Tocantins province: Further evidence for Neoproterozoic crustal accretion in central Brazil: Precambrian Research, v. 81, p. 299-310.
23. Pin, C., and Marini, F., 1993, Early Ordovician continental break-up in Variscan Europe: Nd-Sr isotope and trace element evidence from bimodal igneous associations of the southern Massif Central, France: Lithos, v. 29, p. 177-196.
24. Stern, R.J., 1994, Arc assembly and continental collision in the Neoproterozoic East African Orogen: Implications for the consolidation of Gondwanaland: Annual Review of Earth and Planetary Sciences, v. 22, p. 319-351.
25. Stern, R.J., 2002, Crustal evolution in the East African orogen: A neodymium isotopic perspective: Journal of African Earth Sciences, v. 34, p. 109-117.
26. Stern, R.J., and Dawoud, A.M., 1991, Late Precambrian (740 Ma) charnockite, enderbite and granite from Moya, Sudan: A link between the Mozambique belt and the Arabian-Nubian shield: Journal of Geology, v. 99, p. 648-659.
27. Swinden, H.S., Jenner, G.A., and Szybinski, Z.A., 1997, Magmatic and tectonic evolution of the Cambrian-Ordovician Laurentian margin of Iapetus: Geochemical and isotopic constraints from the Notre Dame subzone, Newfoundland, in Sinha, A.K., et al., eds., Magmatism in the Appalachians: Geological Society of America Memoir 191, p. 337-365.
28. van Staal, C.R., Dewey, J.F., MacNiocaill, C., and McKerrow, W.S., 1998, The Cambrian-Silurian tectonic evolution of the Northern Appalachians and British Caledonides: History of a complex, west and southwest Pacific-type segment of Iapetus, in Blundell, D., and Scott, A., eds., Lyell: The past is the key to the present: Geological Society [London] Special Publication 143, p. 199-242.
29. Williams, H., 1979, Appalachian orogen in Canada: Canadian Journal of Earth Sciences, v. 16, p. 792-798.
30. Windley, B.F., Whitehouse, M.J., and Ba-Btatt, M.A.O., 1996, Early Precambrian gneiss terranes and Pan-African island arcs in Yemen: Crustal accretion of the eastern Arabian shield: Geology, v. 24, p. 131-134.
31. Worsley, T.R., Nance, R.D., and Moody, J.B., 1984, Global tectonic and eustasy for the past 2 billion years: Marine Geology, v. 58, p. 373-400.