TY - JOUR
T1 - Mesozoic and Cenozoic thermal history of the Western Reguibat Shield (West African Craton)
AU - Gouiza, Mohamed
AU - Bertotti, Giovanni
AU - Andriessen, Paul A.M.
PY - 2018/4/1
Y1 - 2018/4/1
N2 - Using low-temperature thermochronology on apatite and zircon crystals, we show that the western Reguibat Shield, located in the northern part of the West African Craton, experienced significant cooling and heating events between Jurassic and present times. The obtained apatite fission track ages range between 49 and 102 Ma with mean track lengths varying between 11.6 and 13.3 μm and Dpar values between 1.69 and 3.08 μm. Zircon fission track analysis yielded two ages of 159 and 118 Ma. Apatite (U–Th)/He uncorrected single-grain ages range between 76 and 95 Ma. Thermal inverse modelling indicates that the Reguibat Shield was exhumed during the Early Cretaceous, Late Cretaceous, Palaeocene–Eocene and Quaternary. These exhumation events were coeval with regional tectonic and geodynamic events, and were probably driven by a combined effect of plate tectonics and mantle dynamics.
AB - Using low-temperature thermochronology on apatite and zircon crystals, we show that the western Reguibat Shield, located in the northern part of the West African Craton, experienced significant cooling and heating events between Jurassic and present times. The obtained apatite fission track ages range between 49 and 102 Ma with mean track lengths varying between 11.6 and 13.3 μm and Dpar values between 1.69 and 3.08 μm. Zircon fission track analysis yielded two ages of 159 and 118 Ma. Apatite (U–Th)/He uncorrected single-grain ages range between 76 and 95 Ma. Thermal inverse modelling indicates that the Reguibat Shield was exhumed during the Early Cretaceous, Late Cretaceous, Palaeocene–Eocene and Quaternary. These exhumation events were coeval with regional tectonic and geodynamic events, and were probably driven by a combined effect of plate tectonics and mantle dynamics.
UR - http://www.scopus.com/inward/record.url?scp=85041558848&partnerID=8YFLogxK
U2 - 10.1111/ter.12318
DO - 10.1111/ter.12318
M3 - Article
AN - SCOPUS:85041558848
SN - 0954-4879
VL - 30
SP - 135
EP - 145
JO - Terra Nova: the European journal of geosciences
JF - Terra Nova: the European journal of geosciences
IS - 2
ER -