Relationship betweenlake sedimentary evolution and the origin of opal lithofacies: the Esquivias section, middle Miocene of the Madrid basin.

von Calvo, J.P
Veröffentlicht in VI International Flint Symposium: Abstracts (Madrid, october 1991)
Umfang/Format: 38-41.

Diatomite deposits in Spain: an overview.

von Regueiro, M.
Veröffentlicht in VI International Flint Symposium: Abstracts (Madrid, october 1991)
Umfang/Format: 93-96.