RT Journal Article
T1 Climate changes during the Early–Middle Triassic transition in the E. Iberian plate and their palaeogeographic significance in the western Tethys continental domain
A1 Borruel Abadía, Violeta
A1 López Gómez, José
A1 Horra Del Barco, Raúl De La
A1 Galán Abellán, Belén
A1 Barrenechea, José F.
A1 Arche, Alfredo
A1 Ronchi, Ausonio
A1 Grette, Nicola
A1 Marzo Carpio, Mariano
AB Until recently the climate of the Early–Middle Triassic at low latitudes was broadly considered as generally temperate-warm with no major climate oscillations. This work examines the climate of this period through a detailed study of the sedimentary, plant, soil and mineral records of continental rocks (Buntsandstein facies) in eastern Iberian basins. Our findings indicate temporal climate variations for these near equator (10°–14°N) regions and unveil the significance of such variations in the southern Laurasian domain.The climate of Iberia's Early Triassic was mainly dominated by alternating brief (< 0.4 ma) arid and semi-arid climate periods, with two main arid periods documented at the end of the Smithian and middle Spathian. However, an initial short subhumid to semi-arid period was also observed in the late Spathian. Remarkably, this latter period appears just after an unconformity related to the tectonically induced Hardegsen Event in western Europe. It is also of interest that this short subhumid climate period is concurrent with the beginning of faunal and floral recovery in the basins examined. The Early Triassic ended again with a short very arid period.Although the beginning of the Anisian (Aegean) was represented by alternating arid and semi-arid to subhumid intervals, during the Bithynian and Pelsonian clearly wetter climates are recorded by the succession consisting of alternating semi-arid to semi-humid intervals. This general tendency was interrupted by three short but marked intervals, two humid intervals in the late Bithynian, and one arid period near the Bithynian/Pelsonian boundary.
PB Elsevier
SN 0031-0182
YR 2015
FD 2015-05-15
LK https://hdl.handle.net/20.500.14352/23847
UL https://hdl.handle.net/20.500.14352/23847
LA eng
NO Ministerio de Economía y Competitividad  (MINECO)
NO Universidad Complutense de Madrid
NO Consejo Superior de Investigaciones Científicas (CSIC)
DS Docta Complutense
RD 21 abr 2025