58
Journal of Geophisycal Research, 93, 3211-3231.
-Irvine, T.N., Baragar, W.R.A., 1971. A guide to the chemical classification of the common
volcanic rocks. Can. J. Earth Science, 8, 523-548.
-James, D. E., Sacks, I. S. 1999., Cenozoic formation of the central Andes: A geophysical
perspective. In: B.F. Skinner, (ed.), Geology and Ore Deposits of the Central Andes, Special
Publication No. 7, Society of Economic Geologists, 1-25,
-Kleine, T., Mezger, K., Zimmerman, U., Münker, C., Bahlburg, H. 2004. Crustal Evolution along
the Early Ordovician Proto-Andean Margin of Gondwana: Trace Element and Isotope Evidence
from the Complejo Igneo Pocitos (Northwest Argentina). Journal of Geology.
-Kohuskarsky, M., Quenardelle, S., Litvak, V., Maisonnave, E.B., Page, S., 2002. Plutonismo de
Ordovìcico inferior en el sector Norte de la Sierra de Macón, provincia de Salta. Asociación
Geológica Argentina, Revista 57 (2), 173-181.
-Kretz, R., 1983. Symbols for rock-forming minerals. American Mineralogist 68, 277-279.
-Krogh, T.E., 1973. A low-contamination method for hydrothermal decomposition of zircon and
extraction of U and Pb for isotopic age determinations. Geochimica et Cosmochimica Acta 37, 485-
494.
-Le Maitre, R.W., Bateman, P., Dudek, A., Séller, J., Lamiere Le Bas, M.J., Sabine, P.A., Schmid,
R., Sorensen, H., Streckeisen, A., Wolley, A.R.y Zanettin, B., 1989. A classification of igneous
rocks and glossary of terms. Blackwell, Oxford.
-Loewy, S.L., Connelly, J.N., Dalziel, I.W.D., 2004. An orphaned basement block: The Arequipa-
Antofalla Basement of the Central Andean margin of South America. GSA Bulletin; v. 116; no.1/2;
p.171-187.
-Lork, A., Bahlburg, H. 1993. Precise U-Pb ages of monazite from the Faja Eruptiva de la Puna
Oriental and the Cordillera Oriental, NW Argentina: XII Congreso Geologico Argentino y II
Congreso Congreso de Exploración de Hidrocarburos Actas, no.4 p. 1-6.
-Lucassen, F., Becchio, R., Wilke, H., Franz, G., Thirwall, M., Viramonte, J.G., Wemmer, K., 2000.
Proterozoic-Paleozoic development of the basement of the central andes (18-26º) a mobile belt of
the South America craton. Journal of South America Earth Science, 13, 697-715.
-Lucassen, F., Becchio, R., Harmon, R., Kasemann, S., Franz, G., Trumbull, R., Wilke, H.G.,
Romer, R., Dulski, P. 2001. Composition and density model of the continental crust at an active
continental margin – the central Andes between 21° and 27°S. Tectonophysics, 341, 195-223.
-Ludwig, K.R., 1993. PBDAT. A computer program for processing Pb-U-Th isotope data. USGS
Open File Report 88-542, 34 pp.