摘要
The Ⅳ International Symposium ProGEO on the Conservation of the Geological Heritage was held between 13-16 September 2005 at Braga organised by ProGEO （European Association for the Conservation of the Geological Heritage） and by the Earth Sciences Department of the University of Minho. The Braga symposium builds on the earlier International Symposia, at Digne （1991）, Roma （1996）, and Madrid （1999）, and at ProGEO conferences hosted in countries and regions, too numerous to list--as well as workshops at the Beijing and Firenze International Geological Congresses. These meetings have set the agenda for geoheritage （geosite, geo（morph）ological site） protection in the last ten years and introduced the ideas of comparative geosite inventories for countries and regions, of National Geoparks （with nested, protected geosite groups）, promoted the integration of geoconservation in strong national nature conservation, as well as links to landscape （Dublin 2002 conference） and geoarchaeological conservation.
