RT Journal Article
T1 Quaternary marine terraces on Sal Island (Cape Verde archipelago)
A1 Zazo Cardeña, Caridad
A1 Goy Goy, José Luis
A1 Dabrio González, Cristino José
AB The Quaternary sedimentary record of Sal Island includes marine and related aeolian and alluvial fan deposits. The substratum of theisland is volcanic, with ages between 25 and 0.6 Ma. Quaternary marine units generally occur as raised marine terraces forming a broadstaircase between elevations of 55–60m and present sea level. Terraces include a basal conglomerate overlaid by calcarenite; both hostcorals, algae and molluscs.A chronostratigraphic framework for the Middle Pleistocene to Holocene units has been generated based on a geomorphologic map ofthe Quaternary landforms and associated deposits and morphosedimentary analysis, with support of laboratory dating: U-series byTIMS in corals, 14C analyses, palaeomagnetic measurements, and K/Ar ages from other literature. U-series dating of corals from marineterraces provides benchmarks for the Last Interglacial (Oxygen Isotope Substage 5e) and Holocene deposits. The present elevation of themarine terraces and their staircase arrangement suggest a change in vertical movement trend around 330 ka from an uplift to eithersubsidence or stabilization.
PB Elsevier
SN 0277-3791
YR 2007
FD 2007
LK https://hdl.handle.net/20.500.14352/49378
UL https://hdl.handle.net/20.500.14352/49378
LA eng
DS Docta Complutense
RD 18 abr 2025