Post-Variscan exhumation of the Central Anti-Atlas (Morocco) constrained by zircon and apatite fission-track thermochronology

Terra Nova ◽  
2013 ◽  
Vol 25 (2) ◽  
pp. 151-159 ◽  
Author(s):  
Mostafa Oukassou ◽  
Omar Saddiqi ◽  
Jocelyn Barbarand ◽  
Samira Sebti ◽  
Lahssen Baidder ◽  
...  
Minerals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 604
Author(s):  
Evgeny V. Vetrov ◽  
Johan De Grave ◽  
Natalia I. Vetrova ◽  
Fedor I. Zhimulev ◽  
Simon Nachtergaele ◽  
...  

The West Siberian Basin (WSB) is one of the largest intracratonic Meso-Cenozoic basins in the world. Its evolution has been studied over the recent decades; however, some fundamental questions regarding the tectonic evolution of the WSB remain unresolved or unconfirmed by analytical data. A complete understanding of the evolution of the WSB during the Mesozoic and Cenozoic eras requires insights into the cooling history of the basement rocks as determined by low-temperature thermochronometry. We presented an apatite fission track (AFT) thermochronology study on the exposed parts of the WSB basement in order to distinguish tectonic activation episodes in an absolute timeframe. AFT dating of thirteen basement samples mainly yielded Cretaceous cooling ages and mean track lengths varied between 12.8 and 14.5 μm. Thermal history modeling based on the AFT data demonstrates several Mesozoic and Cenozoic intracontinental tectonic reactivation episodes affected the WSB basement. We interpreted the episodes of tectonic activity accompanied by the WSB basement exhumation as a far-field effect from tectonic processes acting on the southern and eastern boundaries of Eurasia during the Mesozoic–Cenozoic eras.


2008 ◽  
Vol 43 (2-6) ◽  
pp. 1175
Author(s):  
J. De Grave ◽  
P. Van den haute ◽  
M.M. Buslov ◽  
B. Dehandschutter ◽  
S. Glorie

2005 ◽  
pp. 527-566 ◽  
Author(s):  
Barry P. Kohn ◽  
Andrew J.W. Gleadow ◽  
Roderick W. Brown ◽  
Kerry Gallagher ◽  
Matevz Lorencak ◽  
...  

2011 ◽  
Vol 149 (1) ◽  
pp. 133-140 ◽  
Author(s):  
WILLIAM CAVAZZA ◽  
ILARIA FEDERICI ◽  
ARAL I. OKAY ◽  
MASSIMILIANO ZATTIN

AbstractThe results of apatite fission-track analyses of the Western Pontides of NW Turkey point to three discrete episodes of Cenozoic exhumation correlatable with major supraregional tectonic events. (1) Paleocene–early Eocene exhumation reflected the closure of the İzmir–Ankara ocean. (2) Late Eocene–earliest Oligocene exhumation was the result of renewed tectonic activity along the İzmir–Ankara suture. (3) Late Oligocene–early Miocene exhumation recorded the onset of northern Aegean extension. Samples collected north and south of the tectonic contact between the two terranes forming the Western Pontides (i.e. İstanbul and Sakarya terranes) record the same cooling events, suggesting that such terranes were amalgamated in pre-Cenozoic times.


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