Abstract
The geochemistry of Chilean ignimbrites is discussed in terms of major and trace elements. The variation in the major elements and in the distribution of Ba, Co, Cu, Ga, Pb, Sn, Sr, V, and Zr with the “differentiation factor (1/3Si+K)-(Ca+Mg)” has been studied. The general trend is that characteristic of calc-alkaline rhyolite-dacite-andesite associations. Exceptionally high values of copper reported and high values of Sn and Zr provide further evidence of the anatectic origin of these ignimbrites.
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References
Barsukov, V.L.: The geochemistry of tin. Geochemistry, 1957 vol., p. 41–52. New York 1957.
Boyd, F.R.: Welded tuffs and flows in the Rhyolite Plateau of Yellowstone Park, Wyoming. Bull. Geol. Soc. Am. 72, 387–426 (1961).
Chao, E.C.T., and M. Fleischer: Abundances of Zr in igneous rocks. Rep. Int. Geol. Congr., 21 Sess. Norden 1960, 1, 106–131, Copenhagn 1960.
Clark, A.H., A.E.S. Mayer, C. Mortimer, R.H. Sillitoe, R.U. Cooke, and N.J. Snelling: Implications of the isotopic ages of ignimbrite flows, Southern Atacama Desert, Chile. Nature 215, 723–724 (1967).
Engelhardt, W. v.: Die Geochemie des Barium. Chem. Erde 10, 187–246 (1936).
Ewart, A., and J. J. Stipp: Petrogenesis of the volcanic rocks of the Central North Island, New Zealand, as indicated by a study of Sr87/S86 ratios, and Sr, Rb, K, U and Th abundances. Geochim. Cosmochim. Acta 32, 699–736 (1968a).
—, S.R. Taylor, and A.C. Capp: Trace and minor element geochemistry of the rhyolitic volcanic rocks, Central North Island, New Zealand. Contr. Mineral. and Petrol. 18, 76–104 (1968b).
Guest, J.E.: Upper Tertiary ignimbrites in the Andean Cordillera of part of the Antofagasta Province, Northern Chili. Bull. Geol. Soc. Am. 80, 337–362 (1969).
Jenks, W.F. and S.S. Goldich: Rhyolitic tuff flows in Southern Peru. J. Geol. 64, 156–172 (1956).
Markhinin, E.K., and A.M. Sapozhnikova: Content of Ni, Co, Cr, V and Cu in volcanic rocks of Kamchatka and the Kurile Islands. Geochemistry, 1962 vol., p. 427–432. New York 1962a.
- - Zirconium content in volcanic rocks of Kamchatka and the Kurile Islands. Geochemistry, 1962 vol., p. 965–966. New York 1962b.
- -, and D.S. Stratula: Barium in the volcanic rocks of Kamchatka and the Kurile Islands. Geochemistry Int., 1964 vol., p. 933–934. New York 1964.
Nockolds, S.R., and R. Allen: The geochemistry of some igneous rock series. Geochim. Cosmochim. Acta 4, 105–142 (1953).
— —: The geochemistry of some igneous rock series. Part II. Geochim. Cosmochim. Acta 5, 245–285 (1954).
Noll, W.: Geochemie des Strontiums. Chem. Erde, 8 (1933/34), 507–600 (1934).
Rankama, K., and T.G. Sahama: Geochemistry. 912 pp. Chicago: Univ. Chicago Press 1950.
Rittmann, A.: On the serial character of igneous rocks. Egypt. J. Geol. 1, 23–48 (1957).
—: Volcanoes and their activity. XIV+305 pp. New York and London: J. Wiley & Sons 1962.
Sen, S.K.: Some aspects of the distribution of barium, strontium, iron, and titanium in plagioclase feldspars. J. Geol. 68, 638–665 (1960).
Steiner, A.: Origin of ignimbrites of the North Island, New Zealand, a new petrogenetic concept. New Zealand geol. Surv. Bull., No. 68, 41 pp., Wellington 1960.
Streckeisen, A.: Classification and nomenclature of igneous rocks. Neues Jahrb. Mineral., Abhandl. 107, 144–240 (1967).
Taylor, S.R.: Abundance of chemical elements in the continental crust: a new table. Geochim. Cosmochim. Acta 28, 1273–1285 (1964).
Turekian, K.K., and K.H. Wedepohl: Distribution of the elements in some major units of the earth's crust. Bull. Geol. Soc. Am. 72, 175–192 (1961).
Wedepohl, K.H.: Untersuchungen zur Geochemie des Bleis. Geochim. Cosmochim. Acta 10, 69–148 (1956).
—: Beiträge zur Geochemie des Kupfers. Geol. Rundschau 52 (1962), 492–504 (1963).
Zeil, W.: Zur Geologie der nordchilenischen Kordilleren. Geol. Rundschau 50, 639–673 (1960).
—: Geologie von Chile. XI u. 233 S. Berlin: Borntraeger 1964a.
—: Die Verbreitung des jungen Vulkanismus in der Hochkordillere Nordchiles. Geol. Rundschau 53 (1963), 731–757 (1964b).
—, u. H. Pichler: Die känozoische Rhyolith-Formation im mittleren Abschnitt der Anden. Geol. Rundschau 57 (1967/68), 48–81 (1967).
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El-Hinnawi, E.E., Pichler, H. & Zeil, W. Trace element distribution in Chilean ignimbrites. Contr. Mineral. and Petrol. 24, 50–62 (1969). https://doi.org/10.1007/BF00398752
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DOI: https://doi.org/10.1007/BF00398752