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(Article of periodic en Anglais - 2014)

Document title

Assessing tectonic and climatic causal mechanisms in foreland-basin stratal architecture : insights from the Alborz Mountains, northern Iran

Authors(s) and Affiliation(s)

BALLATO P. (1) ; STRECKER M.R. (1) ;
(1) Institut für Erd- und Umweltwissenschaften, Univ., Potsdam, ALLEMAGNE

Abstract

The AA. focus on the foreland basin of the Alborz Mountains and assess available magnetostratigraphy, paleoclimatic reconstructions, stratal architecture, records of depositional environments, and sediment-provenance data to characterize the relationships between tectonically-generated accommodation space (A) and sediment supply (S). Their analysis allows an inversion of the stratigraphy for particular forcing mechanisms, documenting causal relationships, and providing a basis to decipher the relative contributions of tectonics and climate (inferred changes in precipitation) in controlling sediment supply to the foreland basin. The first episode of extensive progradation appears to have been linked to a pulse in sediment supply driven by an increase in precipitation. The second episode reflects a balance between a climatically-induced increase in sediment supply and a reduction of subsidence through the incorporation of the proximal foreland into the orogenic wedge. This in turn caused an expansion of the catchment and a consequent further increase in sediment supply

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2014, vol. 39, no1 [pp. 110-125]

Bibliographic references : 2 p.

Collation : 6 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3480

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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