RT Journal Article
T1 Catodolummiscencia y estratigrafía de cementos en conchas de rudistas (Hippuritacea, Bivalvia) del Cretácico Medio de Ereño (Bizkaia, País Vasco)
T1 Cathodoluminescence and cement stratigraphy in Middle Cretaceous rudist shells (Hippuritacea, Bivalvia) from Ereño (Bizkaia, Basque Country)
A1 Damas Mollá, Laura
A1 Aranburu Artano, Arantza
A1 García Garmilla, Francisco
AB The cathodoluminescent behaviour of rudist shells and coral skeletal fragments from Ereño Urgonian limestones has been studied. Two different models of luminescence have been distinguished in rudist fragments. Whereas requieniid shells show luminescent patterns that moderately coincide with growth lines, the caprotinid ones exhibit more spread luminescent areas. The interprismatic lines control the lateral spreading out of luminescence. Since some caprotinid shells seem to have their interprismatic lines locally opened by tectonic deformation, luminescence progresses here more clearly. A complex cement stratigraphy has also been deduced, including vadose, meteoric and burial events. The cement sequence ranges from «dogtooth» non-luminescent calcite to yellow hair-line calcite to «blocky» calcite having a complex luminiscence pattern. This sequence appears infilling relatively-early fractures in shells, interprismatic spaces in caprotinid shells, «honeycomb» cells in radiolitid shells, moulds originated from selective dissolution ofaragonitic scleractinid corals, and interlamellar spaces in Chondrodonta sp. valves. The same sequence is recorded as aggradational neomorphism upon micrite that infilled the moulds produced by very-early selective dissolution of aragonitic hipostraca of caprotinids
PB Sociedad Geológica de España
YR 2004
FD 2004
LK http://hdl.handle.net/10272/8920
UL http://hdl.handle.net/10272/8920
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026