Twidale, C. R.2010-01-252010-01-252001Cadernos do Laboratorio Xeolóxico de Laxe, 2001, 26: 101-120 ISSN: 00213-44970213-4497http://hdl.handle.net/2183/6513[Abstract] In geomorphology, as in other sciences, investigation is concerned with the collection and characterisation of data, and the generation and testing of working hypotheses. Considering the analysis of landforms and landscapes, the reasons some explanations have been accepted, others rejected, and yet others refuted but later approved, are examined. In particular, why hypotheses which were considered plausible but were shown to be flawed still received general acclaim, whereas others of obvious merit were ignored, are discussed. The roles of chance and the human factor are also broached.engAcceptance/rejection of ideasPlausibilityHuman factorFashion in geomorphologyConcepts consideredAge of landscapeChanneled ScablandDesert dunesInsolation weatheringLunettesRiver velocitySheet structureSubmarine canyonsjournal articleopen access