@misc{10498/7441,
year = {2009},
month = {4},
url = {http://hdl.handle.net/10498/7441},
abstract = {We present the ¢rst ¢ssion-track (FT) thermochronology results for theNWZagrosBelt (SWIran) in
order to identify denudation episodes that occurred during the protracted Zagros orogeny. Samples
were collected from the two main detrital successions of the NWZagros foreland basin: the
Palaeocene^early Eocene Amiran^Kashkan succession and theMiocene Agha Jari and Bakhtyari
Formations. In situ bedrock samples were furthermore collected in the Sanandaj-Sirjan Zone. Only
apatite ¢ssion-track (AFT) data have been successfully obtained, including 26 ages and11track-length
distributions. Five families of AFTages have been documented from analyses of in situ bedrock and
detrital samples: pre-middle Jurassic at  171 and  225Ma, early^late Cretaceous at  91Ma,
Maastrichtian at  66Ma,middle^late Eocene at  38Ma and Oligocene^early Miocene at
 22Ma.The most widespread middle^late Eocene cooling phase, around  38Ma, is documented
by a predominant grain-age population in Agha Jari sediments and by cooling ages of a granitic
boulder sample. AFTages document at least three cooling/denudation periods linked to major
geodynamic events related to the Zagros orogeny, during the lateCretaceous oceanic obduction event,
during the middle and late Eocene and during the earlyMiocene. Both late Cretaceous and early
Miocene orogenic processes produced bending of the Arabian plate and concomitant foreland
deposition. Between the two major £exural foreland episodes, the middle^late Eocene phase mostly
produced a long-lasting slow- or nondepositional episode in the inner part of the foreland basin,
whereas deposition and tectonics migrated to theNE along the Sanandaj-Sirjan domain and its
Gaveh Rud fore-arc basin. As evidenced in this study, the Zagros orogeny was long-lived and multiepisodic,
implying that the timing of accretion of the di¡erent tectonic domains that form the Zagros
Mountains requires cautious interpretation.},
keywords = {thermochronology},
title = {Insights in the exhumation history of the NWZagros frombedrock and detrital apatite fission-track analysis: evidence for a long-lived orogeny},
doi = {10.1111/j.1365-2117.2009.00431.x},
author = {Homke, S. and Vergés, J. and van der Beek, P. and Fernández, M. and Saura, E. and Badics, B. and Labrin, E. and Barbero González, Luis Carlos},
}