2 documents found, page 1 of 1
The Alpine Orogeny in the West and Southwest Iberia Margins.
Terrinha, Pedro; Ramos, Adrià; Neres, Marta; Valadares, Vasco; Duarte, João; Martinez-Loriente, Sara; Silva, Sónia; Mata, João; Kullberg, José CarlosThe Alpine orogeny is well recorded onshore and offshore by tectonic inversion of the Mesozoic rift basins. Large scale linear seamounts (more than 250 km long and with up to 5 km of uplift) involving oceanic and continental lithosphere were carried on top of thrusts, such as the Gorringe seamount and the Estremadura Spur in the SouthWest and West Iberia Margin, respectively. The SouthWest Iberia Margin also re...
Rifting of the Southwest and West Iberia Continental Margins
Terrinha, Pedro; Kullberg, José Carlos; Neres, Marta; Alves, Tiago; Ramos, Adrià; Ribeiro, Carlos; Mata, João; Pinheiro, Luís; Afilhado, AlexandraThe West and SouthWest Margins of Iberia started their formation as intra-continental rifts during initial break up of Pangea in Triassic times. The tectono-stratigraphic record of the Algarve, Alentejo and Lusitanian basins and their offshore prolongation documents the syn-rift, post-rift and passive margin phases of the rifting process as well as three magmatic cycles of tholeiite to alkaline affinities. Alth...