Texturas superficiales en los granos de cuarzo de las arenas del Plioceno superior de la zona Jerez-Lebrija (SW de España)

  1. Moral Cardona, J.P. 1
  2. Sánchez Bellón, A. 1
  3. Domínguez Bella, S. 1
  4. Gutierrez Mas, J.M. 1
  5. López-Aguayo, F. 1
  6. Antonio Caballero, M. 1
  1. 1 Universidad de Cádiz, España
Revista:
Geogaceta

ISSN: 0213-683X

Año de publicación: 1996

Título del ejemplar: 21a Sesión Científica, Huelva 1996

Número: 21

Páginas: 163-166

Tipo: Artículo

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Otras publicaciones en: Geogaceta

Resumen

In the Jerez-Lebrija are (SW Spain) there are deposits of Pliocene sands which are exploited in various quarries. The analysis of the surface features presented by the quartz grains from these sands refveals different stages in their evolution of the grains. The first of these stages is recorded in the form of conchoidal fractures and arcuate steps; the second is represented by an assemblage of features comprising isolated Vs, grooves and chattermark trails. In a posterior stage chemical features were developed in relation to tropic climatic conditions.

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