2026-06-29T09:25:02Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/598692023-08-04T00:17:06Zcom_20.500.14352_14col_20.500.14352_15

Pruebas morfológicas y estructurales sobre el origen de las fracturas de descamación Morphological and structural evidences concerning the origin of sheet fractures Vidal Romaní, Juan Ramón Twidale, C.R. Campbell, E.M. Centeno Carrillo, Juan de Dios 551.24 Sheet fractures Offloading hypothesis Pressure release joints Geodinámica 2507 Geofísica Sheet fractures are well and widely developed in massive rocks, i.e., rocks lacking other partings, and they have been discussed in the literature for more than a century. Yet there is no agreement as to their origino Two contrasted interpretations hold sway. Almost without exception, geologist adhere to the pressure release or erosional offloading hypothesis. Engineers and engineering geologist, on the other hand, interpret sheet partings as buckling, i.e., crumpling or bending out of plane, related to compressive stresses, particularly lateral stresses. After a review of nomenclature and a description of the characteristics of sheet fractures, a critique of previous explanations of their origin is presented. What are perceived to be critical lines of structural and morphological evidence, bearing on the origin of sheet fracture are next reviewed, and this is followed by a discusion of the possible origins of the structures. Depto. de Geodinámica, Estratigrafía y Paleontología Fac. de Ciencias Geológicas FALSE pub 2023-06-20T20:13:12Z 2023-06-20T20:13:12Z 1995 journal article https://hdl.handle.net/20.500.14352/59869 0213-4497 spa open access application/pdf Seminario de Estudos Galegos. Area de Xeoloxía e Minería ; Instituto Universitario de Xeoloxía "Isidro Parga Pondal"