RT Journal Article T1 La ruptura de la plataforma carbonatada del Lías Inferior en elSubbético Oriental (Provincias de Murcia y Alicante): Distribución de facies y valores isotópicos del 87Sr/86S r , C y O A1 Nieto, Luis M. A1 Ruiz-Ortiz, Pedro A. A1 Rey, Javier A1 Benito Moreno, María Isabel AB The carbonate rocks of the upper part of the Gavilán Fm from the Eastern Subbetic are studied. They have been dated as Early Pliensbachian (carixian) in age and they were deposited in a carbonate platform. The stratigraphic and facies analysis show that the general scheme proposed by Ruiz-Ortiz et al. (2004) for the middle and upper member of the formation, each of them interpreted as a depositional sequence, can be easily applied. Moreover, a third sequence can be differentiated from the unusual record of upper Carixian sediments in some of the studied sections. The evolution of the content in b,3C, b180 and 87Sr/86Sr, is also analyzed from belemnites rostra. The values of these isotope ratios range between their characteristic values for the Pliensbachian according to different authors. Some critical variations can be correlated with those proposed for equivalent ages by other authors. PB Sociedad Geológica de España. SN 1576-5172 YR 2004 FD 2004 LK https://hdl.handle.net/20.500.14352/52489 UL https://hdl.handle.net/20.500.14352/52489 LA spa NO Grupo de Investigación RNM-200 (Junta de Andalucía) NO Ministerio de Ciencia y Tecnología DS Docta Complutense RD 18 may 2024