Abstract
The investigations done by the Instituto de Investigaciones Geológicas (former Geological Survey of Chile) and the Department of Geosciences of the University of Concepción during the last 10 years have shown that in the Coastal Range of south-central Chile, between 38° and 42° south latitude, there are ore occurrences related with a structurally dismembered ophiolitic complex assigned to the Paleozoic (Frutos and Alfaro 1985, 1987) (Fig. 1). Within this ophiolite suite, there are polymetallic massive sulfides interbedded with metabasites (“greenschists”) (Alfaro 1982, 1985 a, b, 1986; Alfaro and Frutos 1988; Collao and Alfaro 1982, this Vol.; Alfaro et al. 1983; Frutos and Alfaro 1985, 1987), which have been interpreted as volcanic-exhalative depositions formed on the oceanic bottom during the Paleozoic. These ore occurrences are genetically similar to the Besshi-type deposits of Japan, characterized by their spatial relationship with tholeiitic volcanic and volcaniclastic rocks.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Aguirre L, Hervé F, Godoy E (1972) Distribution of metamorphic fades in Chile:an outline. Krystalinikum 9:7–19
Alfaro G (1980) Antécédentes preliminares sobre la compositión y génesis de las cromitas de La Cabaña (Cautín). Rev Geol Chile 11:29–41
Alfaro G (1982) Distribución de la mineralización en la Cordillera de la Costa entre los 38 ° y 40 ° Lat. Sur. III Congr Geol Chile, Concepción, pp E38-E59
Alfaro G (1984) Study on metallic ore deposits in central-south region of Chile. D. Sc. Thesis, Tohoku Univ, Sendai, Japan, 268 p (unpublished)
Alfaro G (1985 a) La esfalerita como geobarómetro:antecedentes preliminares para los súlfuros polimetálicos del sur de Chile. IV Congr Geol Chile, Antofagasta 2-14
Alfaro G (1985 b) The massive sulfides of the Coastal Range, southern Chile: Preliminary antecedents. Zbl Geol Paläont Teil I H9/10:1649–1661
Alfaro G (1986) Los súlfuros masivos de la Cordillera de la Costa del sur de Chile. In: Frutos J, Oyarzún R, Pincheira M (eds) Geología y Recursos Minerales de Chile. Univ Concepción, Chile, pp 637–652
Alfaro G, Frutos J (1988) Geochemistry of the massive sulfides and their country rocks from the Coastal Range, southern Chile. Min Geol 38(1):1–13
Alfaro G, Frutos J, Collao S, Helle S (1983) Los súlfuros masivos de la Cordillera de la Costa: Antecedentes preliminares. II Congr Arg Geol Econ, San Juan 1:337–360
Collao S, Alfaro G (1982) Mineralización sulfurada de hierro, cobre y zinc de la Cordillera de la Costa del sur de Chile. Rev Geol Chile 15:41–47
Collao S, Montecinos P, Oviedo L, Oyarzún R (1979) Nuevos antecedentes estructurales en la serie occidental de la Cordillera de Nahuelbuta, Chile. II. Congr Geol Chile 1:B99–B110
Collao S, Alfaro G, Hayashi K Banded iron formation and massive sulfide orebodies, south-central Chile:geologic and isotopic aspects. This Vol., Chapter 15
Conde K (1981) Archean greenstone belts (Developments in Precambrian geology 3). Elsevier, Amsterdam, 433 p
Frutos J, Alfaro G (1985) El complejo ofiolitico del ambito eugeosinclinal paleozoico en la Cordillera de la Costa del Sur de Chile. IV Congr Geol Chile, Antofagasta 1:310–332
Frutos J, Alfaro G (1987) Metallogenic and tectonic characteristics of the Paleozoic ophiolitic belt of the southern Chile coastal cordillera. Geol Rundsch 76/2:343–356
Frutos J, Tobar A (1975) Evolution of the south-western continental margin of South America. III Int Gondwana Sym, Canberra, Australia (1973) 39:565–578
Godoy E (1979) Metabasitas del Basamento Metamórfico, nuevos datos geoquimicos. II Congr Geol Chil, Arica, p E133-E144
Godoy E (1986) Die Entwicklung des Gondwana-Randes in Chile während des Paläozoikums unter besonderer Berücksichtigung der geotektonischen Stellung der Metavulkanite. D. Sc. Thesis, Univ Münster, 70 p (unpublished)
Gonzáles-Bonorino F (1970) Series metamórficas del Basamento Cristalino de la Cordillera de la Costa, Chile Central. Dpto Geol Univ Chile, Santiago 18, 68 p
Hervé F (1977) Petrology of the crystalline basement of the Nahuelbuta mountains, south-central Chile. Soc Promotion Sci, Tokyo, 51 p
Hervé F, Godoy E, Del Campo M, Ojeda M (1976) Las metabasitas del basamento metamorfico de Chile central y austral. I Congr Geol Chile, Santiago, pp F175-F187
Hervé F, Pankhurst RJ, Brook M, Alfaro G, Frutos J, Miller H, Schira W, Amstutz GC Rb-Sr and Sm-Nd data from some massive sulfide occurrences in the metamorphic basement of south-central Chile. This Vol., pp 221-228
Miyashiro A (1973) The Troodos ophiolite complex was probably formed in an island arc. Earth Planet Sci Lett 19:218–224
Oyarzún R, Clemmey H, Collao S (1984) Chemical characteristics of the Nahuelbuta mountains banded iron formation, southern-central Chile. I Jpn Assoc Min Petrol 79:146–156
Pearce JA (1975) Basalt geochemistry used to investigate past tectonic environments on Cyprus. Tectonophysics 25:41–67
Schira W, Amstutz GC, Fontboté L The Pirén Alto Cu-(Zn) massive sulfide occurrence in south-central Chile — a Kieslager-type mineralization in a Paleozoic ensialic mature marginal basin setting, This Vol., pp 229-251
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1990 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Alfaro, G., Collao, S. (1990). Massive Sulfides in the Greenstone Belt of South-Central Chile. In: Fontboté, L., Amstutz, G.C., Cardozo, M., Cedillo, E., Frutos, J. (eds) Stratabound Ore Deposits in the Andes. Special Publication No. 8 of the Society for Geology Applied to Mineral Deposits, vol 8. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-88282-1_14
Download citation
DOI: https://doi.org/10.1007/978-3-642-88282-1_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-88284-5
Online ISBN: 978-3-642-88282-1
eBook Packages: Springer Book Archive