Early Cretaceous subduction of continental crust at the Diego de Almagro archipelago, southern Chile

Episodes

Volumn 26, Issue 4, 2003, Pages 285-289

  Hervé, Francisco ^a   Fanning, C Mark ^b  

^a UNIVERSITY OF CHILE   (Chile)

^b AUSTRALIAN NATIONAL UNIVERSITY   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

CRETACEOUS; GONDWANA; LARGE IGNEOUS PROVINCE; PALEOGEOGRAPHY; SUBDUCTION ZONE;

CHILE; DIEGO DE ALMAGRO ISLAND; MAGALLANES; SOUTH AMERICA;

EID: 1342332656     PISSN: 07053797     EISSN: None     Source Type: Journal    
DOI: 10.18814/epiiugs/2003/v26i4/003     Document Type: Article

References (21)

1. Bruce,R.M., Nelson,E., Weaver, S.G. and Lux, D.R. 1991, Temporal and spatial variations in the southern Patagonian batholith; Constraints on magmatic arc development, In Harmon,R.S. and Rapela,C.W. eds., Andean magmatisma and its tectonic setting: Boulder, Colorado, Geological Society of America Special Paper 265, p. 1-12.
2. Cecioni, G., 1956, Primeras noticias sobre la existencia de Paleozoico Superior en el Archipiélago Patagónico entre los paralelos 50 y 52 S, Universidad de Chile, Facultad de Ciencias Físicas y Matemáticas, Anales. v. 13, p. 471-496.
3. Forsythe,R., 1981, Geological investigations of pre-Late Jurassic terranes in the sothernmost Andes. Ph.D. Thesis, Columbia University, 298 p., New York.
4. Forsythe, R., 1982, The late Paleozoic and Early Mesozoic evolution of southern South America: A plate tectonic interpretation, Journal of the Geological Society of London, v. 139, p. 671-682.
5. Forsythe, R.D. and Mpodozis, C., 1979, El Archipiélago Madre de Dios, Patagonia Occidental, Magallanes: rasgos generales de la estratigrafìa y estructura del basamento pre Jur-sico Superior. Revista Geológica de Chile, 7, p. 13-29.
6. Hervé, F., Nelson, E. & M. Suárez (1979). Edades radiométricas de granitoides y metamorfitas de Cordillera Darwin, XII Región, Chile. Rev. Geológica de Chile ,7, 31-40.
7. Hervé, F., Nelson, E., Kawashita, K. & Suárez, M., 1981, New isotopic ages and the timing of orogenic events in the Cordillera Darwin, southernmost Chilean Andes, Earth & Planetary Science Letters, 55, 257-265.
8. Hervé, F., Prior, D., López, G., Ramos, V.A., Rapalini, A., Thomson, S., Lacassie, J.P. and Fanning, M., 1999, Mesozoic blueschists from Diego de Almagro, southern Chile, II South American Symposium on Isotope Geology, Actas, (Extended Abstract), p.318-321, Córdoba.
9. Ireland, T. R., 1992, Crustal evolution of New Zealand: evidence from age distributions of detrital zircons in Western province paragneisses and Torlesse greywacke, Geochimica et Cosmochimica Acta, v. 56, p. 911-920.
10. Lawver, L. A., Dalziel, I. W. D., Gahagan, L. M., 1998, A tight fit Early Mesozoic Gondwana, a plate reconstruction perspective. Memoirs of the National Institute for Polar Research, Special issue, Vol.53, p.214-229, Tokyo.
11. Ling, H.Y., Forsythe, R.D. and Douglass, C.R., 1985, Late Paleozoic microfaunas from Southernmost Chile and their relation to Gondwanaland forearc development, Geology, v. 13, p.357-360.
12. 2O. Lithos, 41, 229-250.
13. Mukasa, S. and Dalziel, I.W.D., 1996, Southernmost Andes and South Georgia Island, North Scotia Ridge: zircon U-Pb and muscovite Ar - Ar age constraints on tectonic evolution of southwestern Gondwanaland. Journal of South American Earth Sciences, v. 9, p. 349-365.
14. Muir, J., Ireland, T.R., Weaver, S.D. and Bradshaw, J.D., 1996, Ion microprobe dating of Paleozoic - Devonian magmatism in New Zealand and correlation with Australia and Antarctica. Chemical Geology, v. 17, p. 191-210.
15. Nelson, E., Dalziel, I.W.D. and Milnes, A.G., 1980, Structural geology of the Cordillera Darwin: Collision style orogenesis in the southernmost Chilean Andes, Eclogae Geologicae Helveticae, v. 73, p. 727-751.
16. Olivares,B., Cembrano, J., Hervé, F., López, G., Prior, D., 2003, Geometría y cinem-tica de la Zona de Cizalle Seno Arcabuz, Andes patagÛnicos, Chile. Revista Geológica de Chile, Vol. 30, N. 1, 39-52.
17. Pankhurst, R.J. and Rapela, C., 1995, Production of Jurassic rhyolite by anatexis of the lower crust of Patagonia, Earth and Planetary Science Letters, v. 134, p. 23-36.
18. Scotese,C.R., 1997, Phanerozoic plate tectonic reconstructions, PALEOMAP Progress Report 90-0947, Department of Geology, University of Texas, Arlington, USA.
19. Sollner, F., Miller, H., and Hervé, M., 2000, An Early Cambrian granodiorite age from the pre-Andean basement of Tierra del Fuego (Chile): the missing link between South America and Antarctica? Journal of South American Earth Sciences, 13,163-177.
20. Williams, I.S., 1998, U-Th-Pb geochronology by ion microprobe, In McKibben, M.A. and Shanks, W.C. eds., Applications of microanalytical techniques to understanding mineralizing processes, Reviews in Economic Geology, 7, 1-35.
21. Willner, A.P., Hervé, F., Thomson, S.N., & Massonne, H.-J.(2003), Converging PT-paths of different HP-LT metamorphic units within a Mesozoic accretionary belt (Diego de Almagro Island, Southern Chile, 51°30′ S): Evidence for juxtaposition during late shortening of an active continental margin. (Submitted, Contributions to Mineralogy and Petrology, October 2003).