CARACTERISTICAS GEOQUIMICAS DE LAS SECUENCIAS CARBOGENICAS DEL SUR DE CHILE: EL YACIMIENTO DE PUPUNAHUE

Authors

  • S. Helle Proyecto FONDECYT 91-305, Instituto de Geología Económica Aplicada GEA, Universidad de Concepción, Concepción.
  • M. E. Cisternas Proyecto FONDECYT 91-305, Instituto de Geología Económica Aplicada GEA, Universidad de Concepción, Concepción.
  • G. Alfaro Compañía Carbonífera San Pedro de Catamún, La Unión.
  • D. Méndez Proyecto FONDECYT 91-305, Instituto de Geología Económica Aplicada GEA, Universidad de Concepción, Concepción.

Abstract

The coal-bearing sequence of Oligo-Miocene age has been studied in the Pupunahue Basin, in order to establish a model type of study to be applied to other deposits of similar characteristics in the south of Chile. The following elements were analyzed in coals: B, S, Ti, V, Cr, Co, Ni, Cu, Zn, Ga, Ge, As, Cd and Pb. In shales were determined: Ti, V, Cr, Co, Ni, Cu, Zn, As, Cd and Pb. The contents of sulphur and boron indicate a moderate marine influence in cornparison with other deposits of the region (e.g. Catamutún). Elements of economic importance, such as Ge, V and Ti, display no interesting concentrations. The level of arsenic, sulphur, zinc and cadmium is not significant enough to consider them as potential contaminants.

KEY WORDS. Trace elements in coals. Pupunahue. Chile.

 

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Published

2015-10-01

Issue

Vol. 3 No. 1 (1995)

Section

Thematic Volume

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Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a CC Attribution-NonCommercial 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.