RT Journal Article T1 El Sistema Español de I + D en Ciencias de la Tierra. Una aproximación desde el punto de vista de los investigadores T1 Overview of the Spanish R and D System in the field of Earth Sciences. An approach from the researchers' viewpoint A1 Rey, Daniel A1 Martín, M. J. A1 Plaza, L. AB Main results of the survey on "Research activities in the R&D system in Earth Sciences in Spain, 1990-94" are presented. The aim of the survey is to obtain information on different aspects of Spanish researchers' activity in this field (professional details, research activity, publication patterns, collaboration habits and other professional activities) as well as their opinion about Spanish research evaluation practices. The present work is part of an ongoing project, aimed at analysing research activities carried out in the Spanish R&D System in Earth Sciences, in order to collaborate to the development of new research evaluation practices and criteria that allow to complement and improve systems until now prevailing PB Sociedad Geológica de España YR 1997 FD 1997 LK http://hdl.handle.net/10272/10544 UL http://hdl.handle.net/10272/10544 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026