@misc{10481/98531,
year = {2024},
month = {12},
url = {https://hdl.handle.net/10481/98531},
abstract = {Mineralization processes in the Tell-Atlas of North Africa coincided with magmatism,
extension, and lithospheric rejuvenation during the middle to late Miocene. This
review examines the lead isotope compositions and Pb-Pb age dating of ore deposits in
the region to elucidate the sources and timing of mineralization events. The data reveal a
predominantly radiogenic signature in the ores, indicating that the primary component
is from a crustal source, with a contribution from the mantle. Pb-Pb age dating suggests
the ranges of mineralization ages, with late Miocene events being particularly significant,
coinciding with proposed sub-continental mantle delamination following subduction of
the African lithosphere. In this context, polymetallic mineralizations formed related to
felsic magmatism, hydrothermalism driven by extensional faults, resulting in the formation
of Mississippi Valley-Type, and Sedimentary exhalative deposits within associated semigrabens
and diapirism. The correlation between orogenic extensional collapse, magmatism,
and mineralization underscores the importance of understanding the specific geological
context of ore formation. The detachment of subducted slabs and subsequent influx of
hot asthenosphere play pivotal roles in creating conducive conditions for mineralization.
This study sheds light on the intricate interplay between tectonic mechanisms, mantlecrust
interactions, and mineralization events in the Tell-Atlas, offering insights for further
exploration in the region.},
organization = {Ministery of Science and Innovation grant “LANDMARC” (PID2023-
149821NB-I00) funded by MCIN/SRA (Spanish State Research Agency, https://doi.org/10.13039/5
01100011033, accessed on 16 December 2024)},
publisher = {MDPI},
keywords = {mineralization},
keywords = {Atlas Mountains},
keywords = {lead isotopes},
title = {Metallogenic Evolution Related to Mantle Delamination Under Northern Tunisia},
doi = {10.3390/min15010031},
author = {Jemmali, Nejib and Souissi, Fouad and Rddad, Larbi and Carranza, Emmanuel John and Booth-Rea, Guillermo},
}