New insights from U-Pb zircon dating of Early Ordovician magmatism on the northern Gondwana margin: The Urra Formation (SW Iberian Massif, Portugal)

Tectonophysics

Volumn 461, Issue 1-4, 2008, Pages 114-129

  Sola A R ^a   Pereira, M F ^b   Williams, I S ^c   Ribeiro, M L ^a   Neiva, A M R ^d   Montero, P ^e   Bea, F ^e   Zinger, T ^f  

^a INETI   (Portugal)

^b UNIVERSITY OF ÉVORA   (Portugal)

^c AUSTRALIAN NATIONAL UNIVERSITY   (Australia)

^d UNIVERSITY OF COIMBRA   (Portugal)

^e UNIVERSITY OF GRANADA   (Spain)

^f INSTITUTE OF PRECAMBRIAN GEOLOGY AND GEOCHRONOLOGY   (Russian Federation)

Author keywords

Calc alkaline magmatism; Central Iberian Ossa Morena transition zone; Early Paleozoic rifting; Northern Gondwana; Rheic Ocean

Indexed keywords

CADOMIAN OROGENY; CALC ALKALINE ROCK; CONTINENTAL MARGIN; EDIACARAN; GEODYNAMICS; GONDWANA; HERCYNIAN OROGENY; MAGMATISM; ORDOVICIAN; PALEOGEOGRAPHY; PALEOZOIC; RIFTING; SHRIMP DATING; TRANSITION ZONE; URANIUM-LEAD DATING; VOLCANICLASTIC DEPOSIT; ZIRCON;

ARMORICAN MASSIF; BOHEMIAN MASSIF; BRETAGNE; CENTRAL EUROPE; EURASIA; EUROPE; FRANCE; IBERIAN MASSIF; IBERIAN PENINSULA; PORTUGAL; SOUTHERN EUROPE; WESTERN EUROPE;

EID: 55649104974     PISSN: 00401951     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tecto.2008.01.011     Document Type: Article

References (78)

1. Abalos B., Eguíluz L., and Gil Ibarguchi J.I. Cadomian subduction/collision and Variscan transpression in the Badajoz-Córdoba shear belt, southwest Spain. Tectonophysics 199 (1991) 51-72
2. Abati J., Dunning G.R., Arenas R., Díaz García F., González Cuadra P., Martínez Catalán J.R., and Andonaegui P. Early Ordovician orogenic event in Galicia (NW Spain): evidence from U-Pb ages in the uppermost unit of the Ordenes Complex. Earth and Planetary Science Letters 165 (1999) 213-228
3. Apalategui O., Eguíluz L., and Quesada C. Ossa-Morena zone: structure. In: Dallmeyer R.D., and Martínez-García E. (Eds). Pre-Mesozoic Geology of Iberia (1990), Springer-Verlag, Berlin-Heidelberg, Germany 280-292
4. Azor A. El Macizo Ibérico durante el Paleozoico Inferior. In: Vera J.A. (Ed). Geología de España. SGE-IGME, Madrid (2004) 223-224
5. Azor A., González Lodeiro F., and Simancas J.F. Tectonic evolution of the boundary between the Central Iberian and Ossa-Morena zones (Variscan belt, southwest Spain). Tectonics 13 (1994) 45-61
6. Bandrés A., Eguíluz L., Gil Ibarguchi J.I., and Palacios T. Geodynamic evolution of a Cadomian arc region: the northern Ossa-Morena Zone, Iberian massif. Tectonophysics 352 (2002) 105-120
7. Burg J.P., Iglesias M., Laurent P., Matte P., and Ribeiro A. Variscan intracontinental deformation: the Coimbra-Cordoba Shear Zone (SW Iberian Peninsula). Tectonophysics 78 (1981) 161-177
8. Díaz Garcia F. Tectónica y magmatismo Ordovícicos en el área de Sanabria, Macizo Ibérico. Goegaceta 32 (2002) 119-122
9. Díez Montes A., Navidad M., González Lodeiro F., and Martínez Catalán J.R. El Ollo de Sapo. In: Vera J.A. (Ed). Geología de España. SGE-IGME, Madrid (2004) 69-72
10. Eguíluz L., Ibarguichi J.I.G., Ábalos B., and Apraiz A. Superposed Hercynian and Cadomian orogenic cycles in the Ossa Morena Zone and related areas of the Iberian Massif. GSA Bulletin 112 (2000) 1398-1413
11. Fernández-Suárez J., Gutiérrez-Alonso G., and Jeffries T.E. The importance of along-margin terrane transport in Northern Gondwana: insights from detrital zircon parentage in Neoproterozoic rocks from Iberia and Brittany. Earth and Planetary Science Letters 204 (2002) 75-88
12. Floyd P.A., Winchester J., Seston R., Kryza R., and Crowley Q.G. Review of geochemical variation in Lower Paleozoic metabasites from the NE Bohemian Massif: intracratonic rifting and plume-ridge interaction. In: Franke W., Haak V., Oncken O., and Tanner D. (Eds). Orogenic processes: quantification and modelling in the Variscan belt of central Europe. Special Publication - Geological Society of London vol. 179 (2000) 155-174
13. Galindo C., and Casquet C. El magmatismo prevarisco de la Zona de Ossa-Morena. In: Vera J.A. (Ed). Geología de España. SGE-IGME, Madrid (2004) 190-194
14. Gebauer D. Intra-grain zircon dating within the Iberian Massif: Ollo de Sapo augengneisses, bimodal gneisses from the Massif de Guilleries (Girona), Graywacke of the Tentudyá Group (serie Negra, SW Spain) and the HP:HT-rock association at Cabo Ortegal (Galicia). XII Reunião de Geologia do Oeste Peninsular, Abstracts vol. II (1993), Universidade de Évora 41-46.
15. Gonçalves F. Subsídios para o Conhecimento Geológico do Nordeste Alentejano. Memórias dos Serviços Geológicos de Portugal 18 (1971) 1-62
16. Gonçalves F., and Fernandes A.P. Notícia explicativa da folha 32-B (Portalegre) (1973), Serviços Geológicos de Portugal 45 pp.
17. Gonçalves F., Perdigão J.C., Coelho A.V.P., and Munhá J.M. Notícia explicativa da folha 33-A (Assumar). Serviços Geológicos de Portugal (1978) 37 pp.
18. Gorton M.P., and Schandl E.S. From continents to island arcs: a geochemical index of tectonic setting for arc-related and within-plate felsic to intermediate volcanic rocks. Canadian Mineralogist 38 (2000) 1065-1073
19. Govindaraju K., Potts P.J., Webb P.C., and Watson J.S. Report on Whin Sill Dolerite W-E from England and Pitscurrie Microgabbro PM-S from Scotland: assessment by one hundred and four international laboratories. Geostandard Newsletters 18 (1994) 211-300
20. Gutiérrez-Alonso G., Fernández-Suarez J., Jeffries T.E., Jenner G.A., Tubrett M.N., Cox R., and Jackson S.E. Terrane accretion and dispersal in the northern Gondwana margin. An Early Paleozoic analogue of a long-lived active margin. Tectonophysics 365 (2004) 221-232
21. Gutiérrez-Marco J.C., and Robardet M. Zona de Ossa-Morena, Estratigrafia, La evolución paleozoica, Sucesión preorogénica, Ordovícicoico-Devónico Inferior. In: Vera J.A. (Ed). Geología de España. SGE-IGME, Madrid (2004) 170-172
22. Herranz A.P. El Precámbrico y su cobertera paleozoica en la región centro-oriental de la provincia de Badajoz. Seminarios de Estratigrafía. (Serie Monografías) 10 1-4 (1985) 1342 pp
23. Julivert M., and Martínez F.J. The structure and evolution of the Hercynian fold belt in the Iberian Peninsula. In: Schaer J.P., and Rodgers J. (Eds). Comparative Anatomy of Mountain Ranges (1987), Princeton University Press 65-103
24. Julivert, M., Fontboté, J.M., Ribeiro, A., Conde, L., 1972. Mapa Tectónico de la Peninsula Ibérica y Baleares à escala 1/ 1 000 000. Memoria explicativa, IGME,133 pp.
25. Lancelot J.R., and Allegret A. Radiochronologie U/Pb de l'orthogneiss alcalin de Pedroso (Alto Alentejo, Portugal) et évolution anté-hercynienne de l'Europe occidentale. Neues Jahrbuch fuÉr Mineralogie Monatshefte 9 (1982) 385-394
26. Le Bas M.J., Le Maitre R.W., Streckeisen A., and Zanetti B. Chemical classification of volcanic rocks based on the Total Alkali-Silica Diagram. Journal of Petrology 27 (1986) 745-750
27. Le Corre C. The early tectonic events. In: Keppie J.D. (Ed). Pre-Mesozoic Geology in France and related areas, Part II B, Variscan Orogeny in the Armorican Massif, Structure and Metamorphism (1994), Springer-Verlag 179-182
28. Linnemann U., and Romer R.L. The Cadomian orogeny in Saxo-Thuringia, Germany: geochemical and Nd-Sr-Pb isotopic characterization of marginal basins with constraints to geotectonic setting and provenance. Tectonophysics 352 (2002) 33-64
29. Linnemann U., Gehmlich M., Tichomirowa M.H., Buschmann B., Nasdala L., Jonas P., Lützner H., and Bombach K. From Cadomian subduction to early Paleozoic rifting: the evolution of Saxo-Thuringia in the margin of Gondwana in the light of single zircon geochronology and basin development (Central European Variscides, Germany). In: Franke W., Haak V., Oncken O., and Tanner D. (Eds). Orogenic processes: quantification and modelling in the Variscan belt of central Europe. Special Publication - Geological Society of London vol. 179 (2000) 131-153
30. Linnemann U., McNaughton N.J., Romer R.L., Gehmlich M., Drost K., and Tonk C. West African provenance for Saxo-Thuringia (Bohemian Massif): did Armorica ever leave pre-Pangean Gondwana? U/Pb SHRIMP zircon evidence and the Nd-isotopic record. International Journal of Earth Sciences (Geologische Rundschau) 93 (2004) 683-705
31. Lotze F. Zur Gliederung der Varisziden der Iberischen Meseta. Geotektonische Forschungen 6 (1945) 78-92
32. Mata J., and Munhá J. Magmatogénese de metavulcanitos Câmbricos do Nordeste Alentejano: os estádios iniciais de «rifting» continental. Comunicações dos Serviços Geológicos de Portugal 76 (1990) 61-89
33. Mata, J., Ribeiro, M.L., Piçarra, J.M., 1993. S. Marcos do Campo Volcanic Complex: geochemical evidence for a volcanic arc in the Ossa Morena Zone (Ordovician?). Terra Abstracts, Supl. 6 to Terra Nova 5, pp.2.
34. Mata J., Ribeiro M.L., and Piçarra J.M. Geochemical characteristics of the S. Marcos do Campo Volcanic Complex (Ossa-Morena-Zone). Comunicações do Instituto Geológico e Mineiro 86 (1999) 3-14
35. Mc Donough W.F., and Sun S.S. The Composition of the Earth. Chemical Geology 120 (1995) 223-253
36. McDougall N., Brenchley P.J., Rebelo J.A., and Romano M. Fans and fan deltas precursors to the Armorican Quartzite (Ordovician) in western Iberia. Geological Magazine 124 (1987) 347-359
37. Montero P., and Bea F. Accurate determination of 87Rb/86Sr and 147Sm/144Nd by inductively coupled plasma mass spectrometry in isotope geoscience: an alternative to isotope dilution analysis. Analytica Chimica Acta 358 (1998) 227-233
38. Montero P., Bea F., González-Lodeiro F., Talavera C.M., and Whitehouse J. Zircon ages of the metavolcanic rocks and metagranites of the Ollo de Sapo Domain in central Spain: implications for the Neoproterozoic to Early Palaeozoic evolution of Iberia. Geological Magazine 144 6 (2007) 963-976
39. Nance R.D., Murphy J.B., and Keppie J.D. A Cordilleran model for the evolution of Avalonia. Tectonophysics 352 (2002) 11-31
40. Navidad M., and Bea F. Macizo Ibérico: El magmatismo prevarisco. In: Vera A. (Ed). Geología de España. SGE-IGME, Madrid (2004) 92-96
41. Navidad M., Peinado M., and Casillas R. El magmatismo pre-Hercínico del Centro Peninsular (Sistema Central Español). In: Gutiérrez Marco J.G., Saavedra J., and Rábano I. (Eds). Pealeozoico Inferior de Ibero-América (1992), Universidad de Extremadura 485-494
42. Oliveira J.T., Oliveira V., and Piçarra J.M. Traços gerais da evolução tectono-estratigráfica da Zona de Ossa Morena. Comunicações Serviços Geológicos de Portugal 77 (1991) 3-26
43. Oliveira J.T., Pereira E., Piçarra J.M., Young T., and Romano M. O Paleozóico Inferior de Portugal: Síntese da estratigrafia e da evolução paleogeográfica. In: Gutiérrez Marco J.C., Saavedra J., and Rábano I. (Eds). Paleozoic inferior de Ibero-América (1992) 359-375 Universidade Extremadura
44. Ordoñes-Casado, B., 1998. Geochronological studies of the Pre-Mesozoic basement of the Iberian Massif: the Ossa Morena Zone and the allochthonous complexes within the Central Iberian Zone, PhD dissertation, ETH N°12.940, 233 pp.
45. Oschner, A., 1993. U-Pb Geochronology of the Upper Proterozoic-Lower Paleozoic geodynamic evolution in the Ossa-Morena Zone (SW Iberia): constraints on the timing of the Cadomian orogeny. PhD dissertation, Zürich, Switzerland, Eidgen. Techs. Hosch., vol. 10.392, 430 pp.
46. Pearce J.A. Role of the sub-continental lithosphere in magma genesis at active continental margins. In: Hawkesworth C.J., and Norry M.J. (Eds). Continental Basalts and Mantle Xenoliths (1983), Shiva Press, Nantwich, U.K. 230-249
47. Peccerillo A., and Taylor S.R. Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area, Northern Turkey. Contributions to Mineralogy and Petrology 58 (1976) 63-81
48. Pereira M.F., and Silva J.B. A estrutura nos domínios setentoriais da Zona de Ossa-Morena: a Faixa Blastomilonítica e a zona de transição com o Autóctone Centro Ibérico (Nordeste Alentejano-Portugal). In: Araújo A., and Pereira M.F. (Eds). Estudo sobre a geologia de Ossa-Morena (Maciço Ibérico). Homenagem ao Prof. Francisco Gonçalves (1997), Universidade de Évora 183-204
49. Pereira M.F., and Silva J.B. The Portalegre-Esperança shear zone: sinistral transcurrent transpression along the Ossa-Morena/Central-Iberian zones boundary (Northeast Alentejo, Portugal). Comunicações do Instituto Geológico e Mineiro 88 (2001) 19-32
50. Pereira M.F., and Silva J.B. Neoproterozoic-Paleozoic tectonic evolution of the Coimbra-Córdoba shear zone and related areas of the Ossa-Morena and Central-Iberian zones (northeast Alentejo, Portugal). Comunicações do Instituto Geológico e Mineiro 89 (2002) 47-62
51. Pereira M.F., Chichorro M., Linnemann U., Eguíluz L., and Silva J.B. Inherited arc signature in Ediacaran and Early Cambrian basins of the Ossa-Morena Zone (Iberian Massif, Portugal): paleographic link with European and North African Cadomian correlatives. Precambrian Research 144 (2006) 297-315
52. Pereira M.F., Chichorro M., Williams I.S., and Silva J.B. Zircon U-Pb geochronology of paragneisses and biotite granites from the SW Iberian Massif (Portugal): evidence for a palaeogeographic link between the Ossa-Morena Ediacaran basins and the west African craton. In: Liegeóis J.P., and Nasser E. (Eds). The Boundaries of the West Craton. Geological Society of London Special Publication vol. 297 (2008) 385-404 10.1144/SP297.18
53. Peucat J.J., Bernard-Griffiths J., Gil Ibarguchi J.I., Dallmeyer R.D., Menot R.P., Cornichet J., and Iglesias Ponce de Leon M. Geochemical and geochronological cross section of the deep Variscan crust: the Cabo Ortegal high-pressure nappe (northwestern Spain). Tectonophysics 177 (1990) 263-292
54. Piçarra, J.M., 2000. Estudo estratigráfico do sector de Estremoz-Barrancos, Zona de Ossa Morena, Portugal. Litoestratigrafia e Bioestratigrafia do intervalo Câmbrico Médio?- Devónico Inferior. Unpublished Ph.D. dissertation, Universidade de Évora, Portugal, 268 pp.
55. Pin C., and Marini F. 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 29 (1993) 177-196
56. Ribeiro M.L. Petrogenesis of early Paleozoic peralkaline ryolites from the Macedo de Cavaleiros region (NW Portugal). Geologische Rundschau 76 (1987) 147-168
57. Ribeiro M.L. Contribuição para o conhecimento estratigráfico e petrológico da região a SW de Macedo de Cavaleiros (Trás-os-Montes oriental). Memórias dos Serviços Geológicos de Portugal 30 (1991) 1-85
58. Ribeiro M.L., Mata J., and Munhá J.M. Magmatismo do Paleozóico Inferior em Portugal. In: Gutiérrez Marco J.C., Saavedra J., and Rábano I. (Eds). Paleozoic inferior de Ibero-América. Universidade Extremadura (1992) 378-394
59. Ribeiro M.L., Munhá J., Mata J., and Palácios T. Vulcanismo na Zona de Ossa Morena e seu enquadramento geodinâmico. In: Araújo A., and Pereira M.F. (Eds). Estudo sobre a geologia de Ossa-Morena (Maciço Ibérico). Homenagem ao Prof. Francisco Gonçalves (1997), Universidade de Évora 37-55
60. Robardet M., Bonjour J.L., Paris F., Morzadec P., and Racheboeuf P.R. Ordovician, Silurian and Devonian of the Medio-North-Armorican Domain. In: Keppie J.D. (Ed). Pre-Mesozoic Geology in France and related areas, Part II B, Variscan Orogeny in the Armorican Massif, Stratigraphy and Paleontology (1994), Springer-Verlag 142-150
61. Robardet M., Piçarra J.M., Storch P., Gutiérrez-Marco J.C., and Sarmiento G.N. Ordovician and Silurian stratigraphy and faunas (graptolites and conodonts) in the Ossa Morena Zone of the SW Iberian Peninsula (Portugal and Spain). Temas Geológicos y Mineros 23 (1998) 289-318
62. Rodríguez-Alonso M.D. El Complejo Esquisto-Grauvaquico y el Paleozóico en el Centro-Oeste Espanol. Acta Salamanticensia 51 (1985) 1-174
63. Romão J., Coke C., Dias R., and Ribeiro A. Transient inversion during the opening stage of the Wilson Cycle "Sardic phase" in the Iberian Variscides - stratigraphic and tectonic record. Geodinamica Acta 18 2 (2005) 15-29
64. Sánchez García T., Bellido F., and Quesada C. Geodynamic setting and geochemical signatures of Cambrian-Ordovician rift-related igneous rocks (Ossa-Morena Zone, SW Iberia). Tectonophysics 365 (2003) 233-255
65. Silva J.B., and Pereira M.F. Transcurrent continental tectonics model for the Ossa-Morena Zone Neoproterozoic-Paleozoic evolution, SW Iberian Massif, Portugal. International Journal of Earth Sciences (Geologische Rundschau) 93 (2004) 886-896
66. Simancas J.F., Martínez Poyatos D.J., Expósito I., Azor A., and González Lodeiro F. The structure of a major suture zone in the SW Iberian Massif: the Ossa Morena/Central Iberian contact. Tectonophysics 332 (2001) 295-308
67. Solá, A.R., 2007. Relações Petrogeoquímicas dos Maciços Graníticos do NE Alentejano. Unpublished Ph.D. dissertation, Universidade de Coimbra, Portugal, 405 pp.
68. Solá A.R., Montero P., Ribeiro M.L., Neiva A.M.R., Zinger T., and Bea F. Pb/Pb age of the Carrascal Massif, central Portugal. Geochimica et Cosmochimica Acta 69 10, Supplement 1, Goldschmidt Conference Abstracts (2005) A856
69. Solá A.R., Pereira M.F., Ribeiro M.L., Neiva A.M.R., Williams I.S., Montero P., Bea F., and Zinger T. The "Urra Formation": Age and Precambrian inherited record. In: Mirão J., and Balbino A. (Eds). Resumos do VII Congresso Nacional de Geologia de Portugal, Universidade de Évora vol. 1 (2006) 29-32
70. Stampfli G.M., and Borel G.D. A plate tectonic model for the Paleozoic and Mesozoic constrained by dynamic plate boundaries and restored synthetic oceanic isochrons. Earth and Planetary Science Letters 196 (2002) 17-33
71. Steiger R.H., and Jäger E. Convention of the use of decay constants in geo and cosmochronology. Earth and Planetary Science Letters 36 (1977) 359-362
72. Taylor S.R., and Mclennan S.M. The Continental Crust: Its Composition and Evolution (1985), Blackwell Scientific Publ., Oxford 311 pp.
73. Teixeira C. Notas sobre a geologia de Portugal. O complexo xisto-grauváquico ante- Ordoviciano. Empr. Lit. Fulminense Lda, Lisboa (1955) 50 pp.
74. Thiéblemont D., and Cabanis B. Igneous Activity, In: Keppie, J.D. (Ed.): Pre-Mesozoic Geology in France and related areas, Part II B, Variscan Orogeny in the Armorican Massif (1994), Springer-Verlag 220-229
75. Valverde-Vaquero P., and Dunning G.R. Magmatismo 'Sárdico' Arenig en el Dominio del Ollo de Sapo de la Zona Centro Ibérica: Nuevas evidencias U-Pb en la Sierra de Guadarrama. XIV Reunião de Geologia do Oeste Peninsular. Evolução Geológica do Maciço Ibérico e seu enquadramento continental (1997), Comunicações, Vila Real, Portugal 265-270 Abstracts
76. Valverde-Vaquero P., and Dunning G.R. New U-Pb ages for Early Ordovician magmatism in central Spain. Journal of the Geological Society 157 (2000) 15-26
77. Vidal G., Palacios T., Gámez-Vintaned J.A., Dýez Balda M.A., and Grant S.W.F. Neoproterozoic-Early Cambrian geology and palaeontology of Iberia. Geological magazine 131 6 (1994) 729-765
78. Williams I.S., and Claesson S. Isotopic evidence for the Precambrian provenance and Caledonian metamorphism of high grade paragneisses from the Seve Nappes, Scandinavian Caledonides. II. Ion microprobe zircon U-Th-Pb. Contributions to Mineralogy and Petrology 97 (1987) 205-217