Metacraton: nature, genesis and behavior

JP Liégeois, MG Abdelsalam, N Ennih, A Ouabadi - Gondwana Research, 2013 - Elsevier
In this paper, we show with examples that cratons involved in intercontinental collisions in a
lower plate position are often affected by orogenic events, leading to the transformation of …

A new synthetic geological map of the Tuareg Shield: an overview of its global structure and geological evolution

JP Liégeois - The Geology of the Arab World---An Overview, 2019 - Springer
Here is presented a geological map of the Tuareg Shield (Algeria, Mali, Niger), based on the
various available geological maps, which are often old and uneasily available, and on the …

[HTML][HTML] Toward an integrated model of geological evolution for NE Brazil-NW Africa: The Borborema Province and its connections to the Trans-Saharan (Benino …

FA Caxito, LCML Santos, CE Ganade… - Brazilian Journal of …, 2020 - SciELO Brasil
Abstract Both the Borborema Province of NE Brazil and the geological provinces of NW
Africa (the Trans-Saharan Orogen consisted of the Tuareg and Benino-Nigerian shields and …

Paleoproterozoic magmatic and metamorphic events link Yangtze to northwest Laurentia in the Nuna supercontinent

W Wang, PA Cawood, MF Zhou, JH Zhao - Earth and Planetary Science …, 2016 - Elsevier
Zircons from granitic gneisses in North Vietnam have magmatic cores dated at 2.28–2.19
Ga, and constitute the first reported evidence of continental crust with these ages in the …

[PDF][PDF] ° Distribution and Significance of pre-Neoproterozoic Zircons in Juvenile Neoproterozoic Igneous Rocks of the Arabian-Nubian Shield

RJ Stern, KA Ali, JP Liégeois, PR Johnson… - American Journal of …, 2010 - ajsonline.org
Igneous rocks of the Arabian-Nubian Shield (ANS) have lithologic associations (ophiolites,
calc-alkaline igneous rocks, immature sediments) and radiogenic isotopic compositions …

Sr–Nd isotopes and geochemistry of granite-gneiss complexes from the Meatiq and Hafafit domes, Eastern Desert, Egypt: no evidence for pre-Neoproterozoic crust

JP Liégeois, RJ Stern - Journal of African Earth Sciences, 2010 - Elsevier
Neoproterozoic gneisses at Meatiq and Hafafit in the Eastern Desert of Egypt give Rb–Sr
and U–Pb zircon ages of 600–750Ma. These gneisses are interpreted by different workers to …

A reappraisal of the global tectono-magmatic lull at∼ 2.3 Ga

KC Condie, SA Pisarevsky, SJ Puetz, CJ Spencer… - Precambrian …, 2022 - Elsevier
Abstract There is a 87–86% drop in frequency in both detrital and igneous zircon U/Pb ages
during the Tectono-Magmatic Lull (TML, 2365–2235 Ma) and a significant decrease in …

Cadomian basement and Paleozoic to Triassic siliciclastics of the Taurides (Karacahisar dome, south-central Turkey): paleogeographic constraints from U–Pb–Hf in …

A Abbo, D Avigad, A Gerdes, T Güngör - Lithos, 2015 - Elsevier
Abstract The Tauride block in Turkey is a peri-Gondwana, Cadomian-type terrane that rifted
from the Afro-Arabian margin of Gondwana in the Permo-Triassic and re-accreted to Arabia …

Upper mantle structure of the Saharan Metacraton

MG Abdelsalam, SS Gao, JP Liégeois - Journal of African Earth Sciences, 2011 - Elsevier
Abstract The∼ 500,000 km 2 Saharan Metacraton in northern Africa (metacraton refers to a
craton that has been mobilized during an orogenic event but that is still recognisable …

Paleoproterozoic juvenile crust formation and stabilisation in the south-eastern West African Craton (Ghana); new insights from U-Pb-Hf zircon data and geochemistry

S Block, L Baratoux, A Zeh, O Laurent, O Bruguier… - Precambrian …, 2016 - Elsevier
The crust of the Paleoproterozoic West African Craton in northern Ghana is dominantly
made of Tonalite-Trondhjemite-Granodiorite (TTG) suites, low-K to high-K calc-alkaline …