Abstract
This chapter discusses a number of areas with sedimentary basins and their respective cyclic developments, based on the interpretations and sometimes reinterpretations of data taken from the literature and field trip guides in which the sedimentological aspects have been illustrated. The areas with sedimentary basins considered in the chapter are Andes Fueginos, Patagonia and Andean foreland basins, Karoo Basin in South Africa, sedimentary basins of NW and Central Europe, Western Ireland, and Duero Basin in Spain. The Andes Fueginos occupy the southernmost tip of South America on the Isla Grande de Tierra del Fuego and adjacent smaller islands. The island's territory is divided in an Argentinean and a Chilean part. The mountain chain forms a prominent arcuate belt with a general latitudinal orientation. The Karoo Basin is a syneclise-type intracontinental depression, subject to varying degrees of subsidence in which sedimentary material has accumulated above a cratonic platform. The basin is fully isolated in the interior of the African craton, with links to border features that are left over from the previous substratum. It is filled in with Paleozoic series, sometimes with a Mesozoic filling on top. The Duero Basin in Spain occupies the major part of the NW Iberian Peninsula, with a surface of about 50,000 km 2 , being the largest Cenozoic basin in Spain. It is surrounded by high-relief mountains: to the north of Paleozoic and Mesozoic, it is covered by sedimentary rocks; to the south and west, by Paleozoic igneous and metamorphic rocks; and mainly to the east, by Mesozoic siliciclastic and carbonate rocks. These borders were formed during the Alpine orogeny.
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