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Dear Raúl, In the 80's while working on my PhD thesis and studying the Cretaceous section in the Benidorm area, Alicante (Spain): http://perso-sdt.univ-brest.fr/~bgranier/geologie/paleontologie/granier_thesis/en/index.html I was lucky enought to find a good outcrop with the KT boundary in pelagic environments (close to Puig Campana, Finestrat). I knew Robert Rocchia who was working in France for a CEA laboratory studying Iridium. They did the analyses and we published a short paper: Rocchia R., Granier B., Bellier J.-P. et alii [1990].- "La limite Crétacé-Tertiaire du site de Finestrat (province d'Alicante, Espagne)". Comptes-Rendus de l'Académie des Sciences, Paris, (II), 310/4, p. 391-397, 4 fig. There are few other good outcrops still with pelagic facies but we found out that most of the time the KT boundary was coinciding with a stratigraphic gap (erosion), i.e. some marker zones (planktonic foraminifera) were missing in the Uppermost Maastrichtian and Lowermost Danian (in Polop, next to Benidorm for instance, there is a conglomerate marking the very base of the Tertiary series ... first reported by Nicklès in the 1870's). If you have a look in a University library which owns the main scientific Spanish journals: http://www.sociedadgeologica.es/publicaciones/publicaciones.html there is a good chance that you might find a number of publications that will give you the exact location of the Agost section. Best wishes, BG
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