Caracterización de la materia carbonosa grafitizada en el Silúrico inferior del sinclinal de Serrazín, Sistema Central, y su aplicación a la determinación del metamorfismo de bajo grado del área.
- Fernández Barrenechea, José María
- Rodas González, Magdalena
- Arche Miralles, Alfredo
ISSN: 0213-683X
Année de publication: 1990
Número: 9
Pages: 102-105
Type: Article
D'autres publications dans: Geogaceta
Résumé
The Iower part of the Silurian Serrazin S/ates contain an exceptional accumulation of carbonaceous matter in the Serrazín Syncline (Segovia). Low grade Hercynian metamorphism had it transformed into graphite and/oP meta antracyte. Organic matter accumulated in anoxic seafloors during the Early Silurian marine transgression, probably due to upwel/ing and phitoplancton blooms