Results 71 to 80 of about 24,581 (234)

The Egéré Paleo-Mesoproterozoic rifted passive margin of the LATEA metacraton (Central Hoggar, Tuareg Shield, Algeria) subducted and exhumed during the Pan-African orogeny: U-Pb zircon ages, P-T-t paths, geochemistry and Sr-Nd isotopes

Earth-Science Reviews, 2022
K. Ouzegane, J. Liégeois, S. Doukkari, J. Kienast, Amar Arab, A. Drareni, A. Gärtner, U. Linnemann   +7 more
semanticscholar   +1 more source

Optimizing Panning Operating Parameters for Alluvial Gold Processing: The Case of the Wakaso Panning Plant

Engineering Reports, Volume 7, Issue 11, November 2025.
The best configuration corresponding to the optimal rate of site handmade panning of gold gravel is obtain by using experimental plan and machine learning. The optimization of alluvial gold yield by genetic algorithms showed that the best configuration of 86.217% at a 10° slope and a 5 tr/min rotation speed.
Harouna Boukari, Luc Leroy Mambou Ngueyep, André Sini, Serges Augustin Ambani Ngueyap, Justine Temgoua, Moura Dalabra, Christian Fokam Bobda   +6 more
wiley   +1 more source

Ghana airborne geophysics project in the Volta and Keta Basin : BGS final report [PDF]

, 2009
This report describes the work undertaken by BGS between November 2006 and March 2009 in collaboration with Fugro Airborne Surveys Pty Ltd on an airborne geophysical survey and ground reconnaissance mapping of the Volta River and Keta Basins, Ghana ...
Carney, J.N., Jordan, C.J., McDonnell, P., Thomas, C.W.   +3 more
core  

A Recipe for Exotic Continental Fragment Formation: Key Constraints From Numerical Rift Models

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract The Wilson Cycle describes the opening and closing of oceans, generating new plate boundaries at continental rifts, and extinguishing ancient plate boundaries with continental collisions (creating a continental suture). However, the general view of the Wilson Cycle does not fully explain more complex tectonic scenarios.
Alan J. Yu, Erkan Gün, Kenneth J. W. McCaffrey, Philip J. Heron   +3 more
wiley   +1 more source

Inversion tectonics, interference pattern and extensional fault-related folding in the Eastern Anti-Atlas, Morocco [PDF]

, 2018
The Anti-Atlas belt of Morocco is a Variscan chain which appears as a huge anticlinorium oriented NE-SW. In the internal part of this structure, the actual relief shows the basement cropping out as inliers (Piqué 2001) or boutonnières. The cover, a thick
Burkhard, Martin, Robert-Charrue, Charles   +1 more
core  

Precambrian protoliths and Early Paleozoic magmatism in the French Massif Central: U–Pb data and the North Gondwana connection in the west European Variscan belt [PDF]

, 2010
International audienceU–Pb geochronological data were collected on zircon by LA-MC-ICP-MS on orthogneiss and paragneiss from the Limousin area in the French Massif Central (FMC), in order to investigate the connection between the west European Variscan ...
Cocherie, Alain, Faure, Michel, Melleton, Jérémie, Rossi, Philippe   +3 more
core   +4 more sources

Helium Isotope Variations in Gulf of Aden Basalts and the Surface Expression of Mantle Heterogeneity During Afar Plume—Triple Junction Interaction

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract New helium isotope data for basalt glasses from the Gulf of Tadjoura and Gulf of Aden reveal a mantle plume signal that has 3He/4He up to 17 RA. In the Gulf of Aden, plume helium is detectable ∼380 km from the Afar triple junction, up to the Shukra El Sheik Fracture Zone along the West Sheba Ridge, but not beyond.
D. W. Graham, P. J. Michael
wiley   +1 more source

Analysis of Aeromagnetic Data for Enhancing Geologic Features Using Filtering Techniques Over the Congo Craton–Pan-African Belt Contact, Centre-East Cameroon

International Journal of Geophysics
The Pan-African mobile zone, situated at the margin of the Congo Craton in Cameroon, is characterized by a geological setting with polyphased tectonics, which can be summarised as the alternation of compression and extension events.
Jean Aimé Mono, Apollinaire Bouba, Olivier Ulrich Igor Owono Amougou, Jean Daniel Ngoh, Françoise Martine Enyegue A. Nyam, Théophile Ndougsa Mbarga   +5 more
doaj   +1 more source

Deformational History Reconstruction of Basement Complex Rocks in Okomita, Ojirami and Environs, South Western Nigeria

Journal of Applied Sciences and Environmental Management
Deformation histories aid in remodeling the forces related to rock formation. Hence, the objectiveof this paper as to examine the deformational history of the Basement Complex rocks in Okomita, Ojirami and Environs, South Western Nigeria using ...
A. Ogbamikhumi, A. O. Ehinlaiye, C. K. Andrew   +2 more
doaj  

Fusing satellite imagery and ground geochemical data to map alteration zones for gold exploration in western Nigeria

Egyptian Journal of Remote Sensing and Space Sciences
As alteration mapping is vital in identifying signatures of specific mineral deposits, this study aimed to map alteration zones associated with orogenic gold mineralization in the Wawa area using remote sensing and geochemical data.
S.A. Alimi, E.J.M. Carranza
doaj   +1 more source