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DIGITAL.CSIC
Article . 2010 . Peer-reviewed
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Caracterización y clasificación de los carbones cretácicos de Teruel. Relaciones entre sus características y el entorno geológico

Authors: Juan Mainar, Roberto; Ruiz Alares, M. Carmen; Querol, Xavier; Fernandez-Turiel, J. L.; López Soler, Ángel;

Caracterización y clasificación de los carbones cretácicos de Teruel. Relaciones entre sus características y el entorno geológico

Abstract

[ES]: Se han caracterizado los carbones cretácicos de la cuenca minera de Teruel (España), mediante el estudio exhaustivo de 36 muestras de capa de todas las explotaciones con actividad minera. El estudio ha comprendido: Análisis inmediato, elemental y petrográfico. Asimismo, se han determinado otros parámetros cuyo conocimiento se consideró necesario. También se han realizado ensayos carboquimicos como oxidación e hidrogenación. Los resultados muestran que aunque estos carbones pertenecen todos a una misma unidad geológica (Formación Escucha), existen diferencias claras entre los carbones de las subzonas Norte y Sur del Distrito Minero. Estos carbones se han clasificado mediante sistemas científicos (Seyler, van Krevelen y Alpem-ICCP) y comerciales (ECE/IJN y ASTM). El mejor parámetro clasificatorio ha sido la reflectividad de la vitrinita. Según el sistema de clasificación utilizado, los carbones de la subzona Norte se pueden considerar como lignitos o subbituminosos B y los de la subzona Sur como subbituminosos B ó A. Las diferencias encontradas entre los carbones estudiados, se explican desde un punto de vista geológico, por dos motivos: 1) Diferente presión litostática sobre las capas de carbón según la subzona, debido al aumento progresivo de la potencia de los sedimentos del Cenomaniense - Senoniense (Cretácico Superior) de Norte a Sur del Distrito Minero. 2) Menor influencia de la orogénesis alpina en las subzona Norte, contrastando con la subzona Sur, donde provocó gran número de fallas y plegamientos (una estructuración más intensa de las sucesiones mesozoicas).

[EN]: Cretaceous coals from the Teruel Mining District (Spain) have been characterized by an exhaustive study of 36 bed samples from alí of the underground and upen cut mines with activity in that cual field. This study has included proximate, elemental, petrographic and other analyses. Also, sume chemical tests, as oxidations and hydrogenations, have been carried out. The results show that although these coals belung tu the same geological unit (Escucha Furmation in the lower Cretaceous), there are clear differences between the Norther and Southem Subzones of the Mining District. These coals have been classified by sume scientific (Syler’s, van Krevelen diagram and Alpem-ICCP) and commercial (ECE/UN and ASTM) systems. The best parameter tu classify these coals has been the vitrinite reflectance. In depending un the used classification system, cuaN from the North Subzone can be cunsidered as lignites or subbituminous B while coals from the South Subzone can be considered as subbituminous B or A. The differences between both groups uf studied coals can be explained, from a geological viewpoint, by two major factors: 1) The lithostatic pressure supported by the cual beds has been different in depending un the Subzone, because of the progressive thickness increase of te Cenomanian - Senonian sediments (Upper Cretaceous) from the North tu the South uf the Mining District. 2) The intensity of te Alpine Orogeny was stronger in the South Subzone; where gaye rise tu a more intense structuration of the Mesozoic sequences.

El proyecto de investigación: “Caracterización de carbones aragoneses” del que forma parte este proyecto, fue realizado en el Instituto de Carboquímica, gracias a la financiación del CSIC, OCICARBON y Diputación General de Aragón - Diputación Provincial de Teruel (Juan, 1990).

27 páginas, 8 figuras, 4 tablas.

Peer reviewed

Country
Spain
Related Organizations
Keywords

Coal, Characterization, Cretácico Superior, Carbón, Clasificación, Classification, Upper Cretaceous, Iberian Range, Caracterización, Cadena Ibérica

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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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