Twidale, C. R.Bourne, J. A.Vidal Romaní, Juan Ramón2010-01-252010-01-252002Cadernos do Laboratorio Xeolóxico de Laxe, 2002, 27: 55-76 ISSN: 00213-44970213-4497http://hdl.handle.net/2183/6546[Abstract] That many landforms have their origins in the distant past is highlighted by the multistage concept, whereby the structural properties of bedrock which have been exploited by shallow groundwaters are taken fully into account. Fractures of various types are par- ticularly vulnerable to weathering and hence to erosion. Examples are discussed from various lithological and environmental settings - plutonic, volcanic and sedimentary rocks, and different climates.spaMultistageFracturesFoldsMagmaticTectonicLithological settingUnderprintingjournal articleopen access