El límite Cretácico/Terciario con foraminíferos planctónicos en Osinaga y Músquiz (Navarra, Pirineos).

Arenillas, I. ^[1] ; Arz, J. A. ^[1] ; Molina, E. ^[1]
1. [1] Universidad de Zaragoza
  
  Universidad de Zaragoza
  
  Zaragoza, España
Localización: Geogaceta, ISSN 0213-683X, Nº. 21, 1996 (Ejemplar dedicado a: 21a Sesión Científica, Huelva 1996), págs. 25-28
Idioma: español
Títulos paralelos:
- The Cretaceous/Tertiary boundary with planktic foraminifera at Osinaga and Musquiz (Navarre, Pyrenees)
Enlaces
- Texto completo (pdf)

Resumen
- High resolution planktic foraminiferal biostratigraphy across the K/T boundary at Osinaga and Músquiz (Navarre, Pyrenees) allows us to recognise a small hiatus located just at the boundary. The hiatus affects the uppermost part of the P. hariaensis Bizone, the Gb. cretacea Biozone and the lowermost part of the Pv. eugubina Biozone, being smaller at Osinaga than at Músquiz. Due to the hiatus the planktic foraminifera extintion model seems to be more catastrophic than in other more continuous sections.