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Abstract:

The upper Jurassic El Quemado Complex was sampled at 36 sites from five localities in the cordilleran foothills of southern Patagonia between Lago Argentino and Lago Posadas-Sierra Colorada, and the middle Jurassic Marifil Formation at 12 sites in the Somuncurá Massif near Camarones. The main lithology was ignimbrite, with minor tuff and lava. Petrographical and SEM observation show that the El Quemado rocks suffered an intense, high-temperature alteration which resulted in transformation of most primary Ti-magnetite in pseudobrookite, rutile and minor Ti-haematite and Fe hydrated oxides. A similar, less pronounced alteration occurred in the Marifil rocks. 40Ar/39Ar dating of El Quemado was possible for one sample from Sierra Colorada and yielded an age of 156.5 ± 1.9 Ma. Magnetic mineralogy measurements (isothermal remanence, hysteresis loop, Curie balance) show that the remanent magnetization is dominated by PSD low-Ti magnetite, often associated to a minor high-coercive mineral (haematite). Secondary magnetization components are usually absent or weak at El Quemado sites, strong at Marifil. They were completely erased by thermal and AF demagnetization and a characteristic remanence (ChRM) stable up to temperatures higher than 550°C or peak-field values of 100 mT was successfully isolated. The virtual geomagnetic pole (VGP) from the Marifil Formation (83°S, 138°E) is in agreement with the literature data for Jurassic rocks from stable South America. The El Quemado VGPs fall in two groups. The localities to the north of latitude 48°S (Lago Posadas, Sierra Colorada) yield a VGP (81°S, 172°E) close to that of Marifil, whereas those south of latitude 49°S (Lago San Martin, Lago Argentino) show a highly elongated VGP distribution consistent with counter-clockwise block-rotation about vertical axes. These rotations were likely caused by thrust sheets which were rotating counter-clockwise at the same time they were advancing towards the foreland. The amount of rotation varies according to the location of the sampling sites in the thrust and fold belt.

Registro:

Documento: Artículo
Título:Palaeomagnetic study of the E1 Quemado complex and Marifil formation, Patagonian Jurassic igneous province, Argentina
Autor:Iglesia Llanos, M.P.; Lanza, R.; Riccardi, A.C.; Geuna, S.; Laurenzi, M.A.; Ruffini, R.
Filiación:Lab. Paleomagnetismo Daniel Valencio, Departamento de Ciencias Geologicas, Universidad de Buenos Aires, Pabellón 2, Buenos Aires 1428, Argentina
Dipartimento di Scienze della Terra, Università di Torino, Via Valperga Caluso 35, Torino 10125, Italy
Depto. Paleozoologia Invertebrados, La Plata 1900, Argentina
Istituto di Geoscienze e Georisorse, CNR, Area della Ricerca di Pisa, via G. Moruzzi 1, Pisa 56124, Italy
Dipto. Scienze Mineral./Petrologiche, Università di Torino, Via Valperga Caluso 35, Torino 10125, Italy
Palabras clave:Jurassic; Palaeomagnetism; Patagonia; Volcanic structure; igneous province; Jurassic; paleomagnetism; polar wandering; remanent magnetization; volcanism; Argentina
Año:2003
Volumen:154
Número:3
Página de inicio:599
Página de fin:617
DOI: http://dx.doi.org/10.1046/j.1365-246X.2003.01923.x
Título revista:Geophysical Journal International
Título revista abreviado:Geophys. J. Int.
ISSN:0956540X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0956540X_v154_n3_p599_IglesiaLlanos

Referencias:

  • Allerton, S., Geometry and kinematics of vertical-axis rotations in fold and thrust belts (1998) Tectonophysics, 299, pp. 15-30
  • Alric, V.I., Haller, M.J., Féraud, G., Bertrand, H., Zubia, M., Cronologia 40Ar/39Ar del volcanismo jurásico de la Patagonia extrandina (1996) XIII Cong. Geol. Argent., 5, pp. 243-250. , Actas
  • Arbe, H.A., (1988) El Cretácico de la Cuenca Austral: Sus Ciclos de Sedimentación, p. 334. , Universidad de Buenos Aires, Buenos Aires
  • Beck M.E., Jr., On the shape of paleomagnetic data sets (1999) J. Geophys. Res., 104, pp. 25427-25441
  • Beck M.E., Jr., Drake, R., Butler, R.E., Paleomagnetism of Cretaceous volcanic rocks from central Chile and implications for the tectonics of the Andes (1986) Geology, 14, pp. 132-136
  • Beck M., Jr., Burmester, R., Cembrano, J., Drake, R., Garcia, A., Bervé, F., Munizaga, F., Paleomagnetism of the North Patagonian batholith, southern Chile. An exercise in shape analysis (2000) Tectonophysics, 326, pp. 185-202
  • Bertrand, H., Féraud, G., Haller, M., Luais, B., Martinez, M., Alric, V., Fornari, M., The Mesozoic silicic large igneous province of Patagonia: Chronology and origin evidenced by 40Ar39Ar dating and Sr-Nd isotopes (1999) 2nd South Am. Symp. Am. Isotopic Geology, pp. 167-169. , Actas
  • Bonarelli, G., Nágera, J.J., Observaciones geológicas en las inmediaciones del lago San Martin (Territorio de Santa Cruz) (1921) Bol. Dir. Gen. Minas. Buenos Aires, 27 B, pp. 1-39
  • Boyer, S., Elliot, D., Thrust systems (1982) Am. Assoc. Petr. Geol. Bull., 66, pp. 1196-1230
  • Burns, K.L., Rickard, M.J., Belbin, L., Chamalaun, F., Further palaeomagnetic confirmation of the Magellanes orocline (1980) Tectonophysics, 63, pp. 75-90
  • Butler, R.F., (1992) Paleomagnetism, p. 319. , Blackwell Scientific Publications, Oxford
  • Camacho, H.H., Descriptión geológica de la Hoja 47h-47g. Bahía Camarones (1979) Serv. Geol. Nac., 153, pp. 1-29. , Buenos Aires, Bol
  • Carmichael, C.M., The iron-titanium oxides of salic volcanic rocks and their associated ferromagnesian silicates (1967) Contr. Min. Petrol., 14, pp. 36-64
  • Cas, R.A.F., Wright, J.V., (1987) Volcanic Successions: Modern and Ancient, , Allen and Unwin, London
  • Creer, K.M., Mitchell, J.G., Abou Deeb, J., Palaeomagnetism and radiometric age of the Jurassic Chon Aike Formation from Santa Cruz province, Argentina: Implications for the opening of the South Atlantic (1972) Earth Planet. Sci. Lett., 14, pp. 131-138
  • Cunnigham, D.W., Klepeis, K.A., Gose, W.A., Dalziel, I.W.D., The patagonian orocline: New paleomagnetic data from the Andean magmatic are in Tierra del Fuego, Chile (1991) J. Geophys. Res., 96, pp. 16061-16067
  • Dalziel, I.W.D., Kligfield, R., Lowrie, W., Opdyke, N.D., Palaeomagnetic data from the southernmost Andes and the Atarctandes (1973) Implications of Continental Drift to the Earth Sciences, pp. 37-101. , eds Tarling, D.H. and Runcorn, S.K., Academic Press, London
  • Day, R., Fuller, M., Schmidt, V.A., Hysteresis properties of titanomagnetites: Grain size and compositional dependance (1977) Phys. Earth Planet. Inter., 13, pp. 260-267
  • Delvigne, J.E., Atlas of micromorphology of mineral alteration and weathering (1998) Canadian Mineralogist, pp. 1-456. , Special Publication 3
  • Diraison, M., Cobbold, P.R., Gapais, D., Rossello, E.A., Le Corre, C., Cenozoic crustal thickening, wrenching and rifting in the foothills of the southermost Andes (2000) Tectonophysics, 316, pp. 91-119
  • Di Vincenzo, G., Laurenzi, M.A., Argon geochronology of small samples using the argon laserprobe facility at the IGGI-CNR (1999) Plinius, 22, pp. 152-153
  • Féraud, G., Alric, V., Fornari, M., Bertrand, H., Haller, M., 40Ar/39Ar dating of the Jurassic volcanic province of Patagonia: Migrating magmatism related to Gondwana break-up and subduction (1999) Earth Planet. Sci. Lett., 172, pp. 83-96
  • Feruglio, E., Estudios geológicos y glaciológicos en la región del lago Argentino (Patagonia) (1944) Bol. Acad. Nac. Ciencias, 37, pp. 1-208. , Cordoba
  • Feruglio, E., (1949) Descripción Geológica de la Patagonia 1, , YPF, Buenos Aires
  • Furque, G., Descripción Geológica de la Hoja 58b, Lago Argentino (1973) Serv. Nac. Min. Geol., 140, pp. 1-51. , Buenos Aires, Bol
  • Geuna, S.E., Somoza, R., Vizán, H., Figari, E.G., Rinaldi, C.A., Paleomagnetism of Jurassic and Cretaceous rocks in central Patagonia: A key to constrain the timing of rotations during the breakup of southwestern Gondwana? (2000) Earth Planet. Sci. Lett., 181, pp. 145-160
  • Giacosa, R.E., Franchi, M., Genini, A., Hoja Geológica 4772-III Lago Belgrano, Hoja Geológica 4772-IV Lago Posadas, Provincia de Santa Cruz (1999) Serv. Geol. Min. Argent., 256. , Buenos Aires, Bol
  • Gradstein, F.M., Agterberg, F.P., Ogg, J.G., Hardenbol, J., van Veen, P., Thierry, J., Huang, Z., A Mesozoic time scale (1995) J. Geophys. Res., 99, pp. 24051-24074
  • Grunow, A.M., Dalziel, I.W.D., Harrison, T.M., Heizler, M.T., Structural geology and geochronology of subduction complexes along the margin of Gondwanaland: New data from the Antarctic Peninsula and southernmost Andes (1992) Geol. Soc. Am. Bull., 104, pp. 1497-1514
  • Grunow, A.M., Pankhurst, R.J., Rapela, C.W., Marquez, M., Paleomagnetic and geochronologic results from lower Jurassic rocks in Southeastern Patagonia, Argentina (1993) EOS. Trans. Am. Geophys. Un., p. 214. , 1993 Fall Meeting
  • Gust, D.A., Biddle, K.T., Phelps, D.W., Uliana, M.A., Associated Middle to Late Jurassic volcanism and extension in southern South America (1985) Tectonophysics, 116, pp. 223-253
  • Haggerty, S.E., Oxidation of opaque mineral oxides in basalts (1976) Reviews in Min., 3, pp. Hg101-Hg300
  • Haggerty, S.E., Oxide textures - A mini atlas (1981) Reviews in Min., 25, pp. 129-137
  • Haggerty, S.E., Lindsley, D.H., Stability of the pseudobrookite (Fe2TiO5)-ferropseudobrookite (FeTi2O5) series (1970) Carnegie Inst. Washington Year Book, 68, pp. 247-249
  • Halpern, M., Regional geochronology of Chile south of 50 latitude (1973) Geol. Soc. Am. Bull., 84, pp. 2407-2422
  • Iglesia Llanos, M.P., (1997) Magnetoestratigrafia Y Paleomagnetismo Del Jurásico Inferior Marino De La Cuenca Neuquina, República Argentina, p. 337. , PhD thesis, University of Buenos Aires
  • Iglesia Llanos, M.P., Riccardi, A.C., The Neuquén composite section: Magnetostratigraphy and biostratigraphy of the marine lower Jurassic from the Neuquén basin (Argentina) (2000) Earth Planet. Sci. Lett., 181, pp. 443-457
  • Kay, S.M., Gorring, M.L., Ramos, A.V., Magmas de arco, retroarco y fundidos de corteza oceánica asociados con la colisión de dorsales oceánicas en Patagonia (1994) 7° Cong. Geol. Chileno., 2, pp. 1100-1104. , Actas
  • Kirschvink, J.L., The least-squares line and plane and the analysis of palaeomagnetic data (1980) Geophys. J. R. Astr. Soc., 62, pp. 699-718
  • Kraemer, P.E., Perfil estructural de la cordillera Patagónica Austral a los 50°S Santa Cruz (1993) 13° Cong. Geol. Argent. Y 2° Cong. Explor. de Hidrocarb., 3, pp. 119-125. , Actas
  • Kraemer, P.E., Segmentación geológica y geofisica en la cordillera patagónica austral. Consecuencia de discontinuitades en el rift jurásico? 49°S-51°S Argentina y Chile (1994) 7° Cong. Geol. Chileno, 1, pp. 71-75. , Actas
  • Kraemer, P.E., Structure of the Patagonia Andes: Regional balanced cross section at 50°S, Argentina (1998) Int. Geol. Rev., 40, pp. 896-915
  • Kraemer, P.E., Riccardi, A.C., Estratigrafia de la región comprendida entre los lagos Argentino y Viedma (49° 40′-50° 10′ lat. S), Provincia de Santa Cruz (1997) Rev. Asoc. Geol. Argent., 52, pp. 333-360
  • Kraemer, P.E., Ploszkiewicz, J.V., Ramos, V.A., Estructura de la Cordillera Patagónica austral entre los 46° y 52°S (2002) Geología Y Recursos Naturales de Santa Cruz, 1-22, pp. 353-364. , ed. Haller, M.J., Relat. 15° Congr. Geol. Argent
  • Lema, H., Busteros, A., Franchi, M., Hoja Geológica 4466 II y IV Camarones, Provincia del Chubut (2001) Serv. Geol. Min. Argent., 261, pp. 1-60. , Buenos Aires, Bol
  • Lowrie, W., Identification of ferromagnetic minerals in a rock by coercivity and unblocking properties (1990) Geophys. Res. Lett., 17, pp. 159-162
  • Massabie, A.C., La faja de corrimientos Rio Turbio-La Leona y estructuras menores asociadas. Valle del río Leona, Santa Cruz (1990) Rev. Asoc. Geol. Argent., 45, pp. 29-36
  • McArthur, A.N., Cas, R.A.F., Orton, G.J., Distribution and significance of crystalline, perlitic and vescicular textures in the Ordovician Garth Tuff (Wales) (1998) Bull. Volcanol., 60, pp. 260-285
  • McClelland, E., McCaig, A.M., Palaeomagnetic estimates of rotations in compressional regimes and potential discrimination between thin-skinned and deep crustal deformation (1989) Paleomagnetic Rotations and Continental Deformation, pp. 365-379. , eds Kissel, C. and Laj, C., Kluwer Academic Publishers
  • McFadden, P.L., A new fold test for palaeomagnetic studies (1990) Geophys. J. Int., 103, pp. 163-169
  • McFadden, P.L., McElhinny, M.W., The combined analysis of remagnetization circles and direct observations in palaeomagnetism (1988) Earth Planet. Sci. Lett., 87, pp. 161-172
  • McFadden, P.L., McElhinny, M.W., Classification of the reversal test in palaeomagnetism (1990) Geophys. J. Int., 103, pp. 725-729
  • Mullender, T.A.T., van Velzen, A.J., Dekkers, M.J., Continuous drift correction and separate identification of ferrimagnetic and paramagnetic contributions in thermomagnetic runs (1993) Geophys. J. Int., 114, pp. 663-672
  • Nullo, F., Descripción geológica de la Hoja 56a-b, Cerro Fitz Roy (1:200.000) (1978) Serv. Geol. Min. Argent., , Buenos Aires, unpublished
  • Nullo, F.E., Proserpio, C., Ramos, V.A., Estratigrafia y tectónica de la vertiente este del Hielo Continental Patagónico. Argentina-Chile (1978) 7° Congr. Geol. Argent., 1, pp. 455-470. , Actas
  • Ogg, J.G., Magnetic polarity time scale for the Phanerozoic (1995) Global Earth Physics. A Handbook of Physical Constants, pp. 240-270. , AGU, Washington
  • Oldow, J.S., Channell, J.E.T., Catalano, R., D'Argenio, B., Contemporaneous thrusting and large-scale rotations in the Western Sicilian fold and thrust belt (1990) Tectonics, 9, pp. 661-681
  • Oviedo, E., Vilas, J.F., Movimientos recurrentes en el Permo-Triásico entre el Gondwana Occidental y el Oriental (1984) 9° Cong. Geol. Argent., 3, pp. 97-114. , Actas
  • Pankhurst, R.J., Sruoga, P., Rapela, C.W., Estudio geocronológico Rb-Sr de los complejos Chon-Aike y El Quemado a los 47°30' L.S (1993) 12° Cong. Geol. Argent., pp. 171-178
  • Pankhurst, R.J., Leat, P.T., Sruoga, P., Rapela, C.W., Marquez, M., Storey, B.C., Riley, T.R., The Chon Aike province of Patagonia and related rocks in West Antarctica: A silicic large igneous province (1998) J. Volc. Geotherm. Res., 81, pp. 113-136
  • Pankhurst, R.J., Riley, T.R., Fanning, C.M., Kelley, S.P., Episodic silicic volcanism in Patagonia and the Antarctic Peninsula: Chronology of magmatism associated with the break-up of Gondwana (2000) J. Petrol., 41, pp. 605-625
  • Panza, J.L., Haller, M.J., El Volcanismo Jurásico (2002) Geologia Y Recursos Naturales de Santa Cruz, 1-7, pp. 89-101. , ed. Haller, M.J., Relat. 15° Congr. Geol. Argent
  • Ramos, V.A., Tectónica de la región del Rio y Lago Belgrano, Cordillera Patagónica-Argentina (1979) 2° Cong. Geol. Chil., 1, pp. B2-B32. , Actas
  • Ramos, V.A., Descripción geológica de la Hoja 55a. Sierra de Sangra, Provincia de Santa Cruz (1:200.000) (1981) Serv. Geol. Min. Argent., , Buenos Aires, unpublished
  • Ramos, V.A., Descripción geológica de las Hojas 53a-Monte San Lorenzo y 53b-Monte Belgrano, Provincia de Santa Cruz (1:200.000) (1982) Serv. Geol. Min. Argent., , Buenos Aires, unpublished
  • Ramos, V.A., Evolución tectónica y metalogénesis de la Cordillera Patagónica (1983) 2° Congr. Nac. Geol. Econom., 1, pp. 108-124. , Actas
  • Ramos, V.A., La estructura de la Cordillera Patagónica (47°-49° S) de Argentina y Chile (1988) 5° Cong. Geol. Chileno, 1, pp. A101-A114. , Actas
  • Ramos, V.A., Andean foothills structures in northern Magallanes basin, Argentina (1989) Am. Ass. Petrol. Geol. Bull., 73, pp. 887-903
  • Ramos, V.A., Evolución Tectónica (2002) Geología Y Recursos Naturales de Santa Cruz, 1-23, pp. 365-387. , ed. Haller, M.J., Relat, 15° Congr. Geol. Argent
  • Ramos, V.A., Niemeyer, H., Skarmeta, J., Munoz, M., Magmatic evolution of the Austral Patagonian Andes (1982) Earth Sci. Rev., 18, pp. 411-443
  • Rapalini, A.E., López de Luchi, M., Palaeomagnetism and magnetic fabric of Middle Jurassic dykes from Western Patagonia, Argentina (2000) Phys. Earth Planet. Inter., 120, pp. 11-27
  • Rapela, C.W., Pankhurst, R.J., The granites of northen Patagonia and the Gastre Fault System in relation to the break-up of Gondwana (1992) Magmatism and the Causes of Continental Break-Up, 68, pp. 209-220. , eds Storey, B.C., Alabaster, T. and Pankhurst, R.J., Geol. Soc. Spec. Publ
  • Rapela, C.W., Pankhurst, R.J., El volcanismo riolitico del noreste de la Patagonia: un evento meso-jurásico de corta duración y origen profundo (1993) 12° Cong. Geol. Argent., 4, pp. 179-188. , Actas
  • Rapela, C.W., Pankhurst, R.J., Variaciones temporales del magmatismo Jurásico de la Patagonia (1994) 7° Cong. Geol. Chileno, 2, pp. 1433-1437. , Actas
  • Riccardi, A.C., Estratigrafía en el oriente de la Bahia de Lancha, lago San Martin, Santa Cruz, Argentina (1971) Rev. Museo la Plata, 7 (61), pp. 245-318. , Geol
  • Riccardi, A.C., Rolleri, C.O., Cordillera Patagónica Austral (1980) Segundo Simposio de Geologia Regional Argentina, 2, pp. 1173-1304. , ed. Turner, J.C., Acad. Nac de Ciencias, Córdoba
  • Riccardi, A.C., Gulisano, C.A., Mojica, J., Palacios, O., Schubert, C., Thomson, M.R.A., Western South America and Antarctica (1992) The Jurassic of the Circum-Pacific, pp. 122-161. , ed. Westermann, G.E.G., Cambridge University Press
  • Riggi, J.C., Resumen geológico de la zona de los lagos Pueyrredón y Posadas, provincia de Santa Cruz (1957) Rev. Asoc. Geol. Argent., 12, pp. 65-97
  • Roperch, C., Chauvin, A., Calza, F., Palacios, C., Parraguez, G., Pinto, L., Goguitchaivilli, A., Paleomagnetismo de las rocas volcánicas del Jurasico tardío al Terciario temprano de la región de Aysén (Coyhaique-Cochrane) (1997) 8° Cong. Geol. Chileno, 1, pp. 236-240. , Actas
  • Samson, S.D., Alexander E.C., Jr., Calibration of interlaboratory 40Ar39Ar dating standard, MMhb-1 (1987) Chem Geol., 66, pp. 27-34
  • Schmidt, V., Circularity of paleomagnetic data sets: An aid in the recognition of contaminating secondary overprints (1990) Tectonophysics, 184, pp. 11-20
  • Schwartz, S., Van der Voo, R., Palaeomagnetic study of thrust sheet rotation during foreland impingement in the Wyoming-Idaho overthrust belt (1984) J. Geophys. Res., 89, pp. 10077-10086
  • Sruoga, P., (1989) Estudio Petrológico Del Plateau Ignimbrítico Jurásico a Los 47°30' Lat. S, , PhD thesis, Universidad Nacional de La Plata
  • Streck, M.J., Grunder, A.L., Crystallisation and welding variations in a widespread ignimbrite sheet: The Rattlesnake Tuff, eastern Oregin, USA (1995) Bull. Volcanol., 57, pp. 151-169
  • Suárez, M., De la Cruz, R., Edades K-Ar del Grupo Ibanez en 2, 1433-1437. la parte oriental del Lago General Carrera (46°-47° L.S.) Aysén, Chile (1997) 8° Cong. Geol. Chileno, 2, pp. 1548-1551. , Actas
  • Suárez, M., Márquez, M., De la Cruz, R., Nuevas edades K-Ar del Complejo El Quemado a los 47°13′-47°22′ L.S (1997) 8° Cong. Geol. Chileno, 2, pp. 1552-1555. , Actas
  • Valencio, D.A., Vilas, J.F., Palaeomagnetism of some Middle Jurassic lavas from south-east Argentina (1970) Nature, 225, pp. 262-264
  • Valencio, D.A., Vilas, J.F., Pacca, I.G., The significance of the paleomagnetism of the Jurassic-Cretaceous rocks from South America: Predrift movements, hair-pins and magnetostratigraphy (1983) Geophys. J. R. Astr. Soc., 73, pp. 135-151
  • Vilas, J.F., Palaeomagnetism of some igneous rocks of the Middle Jurassic Chon-Aike Formation from Estancia La Reconquista, Province of Santa Cruz, Argentina (1974) Geophys. J. R. Astr. Soc., 39, pp. 511-522
  • Vizán, H., Paleomagnetism of the Lower Jurassic Lepá and Osta Arena formations, Argentina Patagonia (1998) J. S. Am. Earth Sci., 11, pp. 333-350
  • Xu, W., Van der Voo, R., Peacor, D.R., Beaubouef, R.T., Alteration and dissolution of fine-grained magnetite and its effects on magnetization of the ocean floor (1997) Earth Planet. Sci. Lett., 151, pp. 279-288
  • Zhou, W., Van der Voo, R., Peacor, D.R., Zhang, Y., Variable Ti-content and grain size of titanmagnetite as a function of cooling rate in very young MORB (2000) Earth Planet. Sci. Lett., 179, pp. 9-20
  • Zijderveld, J.D.A., A.C. demagnetization of rocks (1967) Methods in Palaeomagnetism, pp. 254-286. , eds Collinson, D.W., Creer, K.M. and Runcorn, S.K., Elsevier, Amsterdam

Citas:

---------- APA ----------
Iglesia Llanos, M.P., Lanza, R., Riccardi, A.C., Geuna, S., Laurenzi, M.A. & Ruffini, R. (2003) . Palaeomagnetic study of the E1 Quemado complex and Marifil formation, Patagonian Jurassic igneous province, Argentina. Geophysical Journal International, 154(3), 599-617.
http://dx.doi.org/10.1046/j.1365-246X.2003.01923.x
---------- CHICAGO ----------
Iglesia Llanos, M.P., Lanza, R., Riccardi, A.C., Geuna, S., Laurenzi, M.A., Ruffini, R. "Palaeomagnetic study of the E1 Quemado complex and Marifil formation, Patagonian Jurassic igneous province, Argentina" . Geophysical Journal International 154, no. 3 (2003) : 599-617.
http://dx.doi.org/10.1046/j.1365-246X.2003.01923.x
---------- MLA ----------
Iglesia Llanos, M.P., Lanza, R., Riccardi, A.C., Geuna, S., Laurenzi, M.A., Ruffini, R. "Palaeomagnetic study of the E1 Quemado complex and Marifil formation, Patagonian Jurassic igneous province, Argentina" . Geophysical Journal International, vol. 154, no. 3, 2003, pp. 599-617.
http://dx.doi.org/10.1046/j.1365-246X.2003.01923.x
---------- VANCOUVER ----------
Iglesia Llanos, M.P., Lanza, R., Riccardi, A.C., Geuna, S., Laurenzi, M.A., Ruffini, R. Palaeomagnetic study of the E1 Quemado complex and Marifil formation, Patagonian Jurassic igneous province, Argentina. Geophys. J. Int. 2003;154(3):599-617.
http://dx.doi.org/10.1046/j.1365-246X.2003.01923.x