Skip to Main Content
Book Chapter

Albian coal-bearing deposits of the Iberian Range in northeastern Spain

By
Xavier Querol
Xavier Querol
Search for other works by this author on:
Ramón Salas
Ramón Salas
Search for other works by this author on:
Gonzalo Pardo
Gonzalo Pardo
Search for other works by this author on:
Luis Ardevol
Luis Ardevol
Search for other works by this author on:
Published:
January 01, 1992

From Lower Albian to Santonian times the counterclockwise rotation of the Iberian Plate resulted in a number of periods of rifting and relative falls in sea level. During the Middle Albian, these events brought about an important influx of siliciclastic sediments within a deltaic-estuarine system that deposited the Escucha Formation. Significant coal deposits have been recorded in freshwater swamp plain (upper delta plain) and brackish water swamp (lower delta plain) environments. The distribution and thickness of the workable coal of the study area are controlled by the stratigraphy, paleogeography, sedimentology, and tectonic structure. These coals, which have been classified as mainly subbituminous, are characterized by their high sulfur content (6 to 7.3 percent dry basis average of worked coal). The study of the sulfur content of the coal seams of the Castellote and Calanda Sub-basins reveals three types of sulfur distribution: vertical variation within individual coal seams, stratigraphic variation, and lateral variation within the basin. These three types of sulfur distribution have two principal controlling factors; the sedimentologic setting and external factors, the latter probably due to the leaching of the sulfur of pre-Cretaceous evaporites.

You do not currently have access to this article.

Figures & Tables

Contents

GSA Special Papers

Controls on the Distribution and Quality of Cretaceous Coals

Peter J. McCabe
Peter J. McCabe
Search for other works by this author on:
Judith Totman Parrish
Judith Totman Parrish
Search for other works by this author on:
Geological Society of America
Volume
267
ISBN print:
9780813722672
Publication date:
January 01, 1992

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal