Abstract
Publisher Summary This chapter focuses on the coastal geology and morphology of Patagonia and the Fuegian Archipelago. Patagonia and Tierra del Fuego show a wide and varied record of coastal evolution for the Quaternary period, comprising the complicated relationships among glacial deposits, interglacial highstands, and different uplift trends. The sea-level highstands that occurred during the Middle Pleistocene are difficult to distinguish because it is necessary to consider the precision of the dating method and if the uplifting rate permitted a vertical displacement between two consecutive highstands. In northern Patagonia, Holocene beach plains originated because of gravel abundance, between capes or related to river inlets. On the Atlantic coast of Tierra del Fuego there are regressive-like sequences of beach ridge plains in protected areas, and transgressive-like beach plains developed at exposed areas are subjected to fluctuations in gravel availability.
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