RT Journal Article
T1 Microestructura e interrupciones en el crecimiento de las conchas de inocerámido (Bivalvia) del Maastrichtiense inferior. Cuenca Vasco-Cantábrica
T1 Microstructure and growth ruptures of the lower Maastrichtian inoceramid (Bivalvia) shells. Basque-CantabrianBasin
A1 Gómez Alday, Juan José
A1 Elorza, Javier
AB Lower Maastrichtian inoceramid shells from the Basque-Cantabrian Basin were deposited in a carbonatedeep-sea environment. The referred shells show a well-developed first order prismatic microstructureformed by crystals of low magnesium calcite (LMC). Each prism, composed by several crystals, is formedby stacked crystalline tablets. Although shells have undergone burial diagenesis, it is possible to determinean important number of pairs of clear and dark growth lines (>250), more vigorous in the initial stages ofgrowth. Occasionally, these lines can exhibit ruptures in their development of difficult interpretation, sincethey do not seem to be product of dramatic temperature-salinity or energy (i.e. storms) changes in theenvironment. The origin of the growth ruptures may be related to physiological factors without beingdirectly associated to the stress produced by periodical spawning
PB Sociedad Geológica de España
YR 2004
FD 2004
LK http://hdl.handle.net/10272/8881
UL http://hdl.handle.net/10272/8881
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 15 jun 2026