Results 171 to 180 of about 24,581 (234)

Lithotectonic setting, paleoweathering, maturity, sediment recycling and paleoredox conditions of quaternary alluvium from Mayo Sina (Tchad). A geochemical approach. [PDF]

Heliyon
Adama A, Bertrant BS, Eric BE, Florent AD, Cédric BB.   +4 more
europepmc   +1 more source

Supplementary material to "Non-cylindrical parasitic folding and strain partitioning during the Pan-African Lufilian orogeny in the Chambishi-Nkana Basin, Central African Copperbelt"

, 2018
Koen Torremans, Philippe Muchez, Manuel Sintubin   +2 more
openaire   +1 more source

Exploring geothermal energy prospects through radioelement enrichment zones in Gabal Abu Hashim area in southeastern Aswan by geophysical and remote sensing data integration. [PDF]

Sci Rep
El-Hadidy SM, Youssef MAS.
europepmc   +1 more source

Field study of Alkaline plutons in Tamil Nadu and Andhra Pradeshsouth India1997-1998 [PDF]

Miyazaki, Takashi, Rajesh, H.M., V. Ram Mohan   +2 more
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Timing of collisional and post-collisional Pan-African Orogeny silicic magmatism in south-central Chad

Precambrian Research, 2017
Abstract Precambrian crust within southern Chad and eastern Cameroon preserves rocks that were remobilized and emplaced during and after the Neoproterozoic (∼650 Ma to ∼610 Ma) collision between the Congo, Sao Francisco, West African cratons and the Saharan Metacraton.
J. Shellnutt, Ngoc Ha T. Pham, S. Denyszyn, M. Yeh, T. Lee   +4 more
semanticscholar   +4 more sources

“Pan African Orogeny” in the Coastal Region of Ghana

Nature, 1970
SEVERAL authors1–4 have advocated that in West Africa the 500–600 m.y. “Pan African Orogeny”5 was a complete orogenic cycle and not merely a thermal event that caused isotopic changes. It has been postulated that in Ghana3,4 this cycle began when the Birrimian rocks, which had been involved in a previous orogeny between 1,700 and 2,000 m.y. ago, became
W. R. FITCHES
semanticscholar   +6 more sources

Improving geochronological framework of the Pan-African orogeny in Cameroon: New SIMS zircon and monazite U-Pb age constraints

Precambrian Research, 2017
Abstract High-precision geochronological framework is crucial to understanding of the evolution of orogenesis. As part of the Pan-African North Equatorial Fold Belt, the Neoproterozoic Fold Belt of Cameroon (NFBC) involved polyphase deformation (D1 to D4 phases), metamorphism (up to granulite facies) and widespread crustal anatexis and magmatism ...
Xian‐Hua Li, Yi Chen, J. Tchouankoué, Chuan-Zhou Liu, Jiao Li, Xiaoxiao Ling, G. Tang, Yu Liu   +7 more
semanticscholar   +4 more sources

The LATEA metacraton (Central Hoggar, Tuareg shield, Algeria): behaviour of an old passive margin during the Pan-African orogeny

Journal of African Earth Sciences, 2003
Historically, the Tuareg shield is divided into three parts bordered by mega-shear zones with the centre, the Central Polycyclic Hoggar, characterized byArchaean and Palaeoproterozoic lithologies. Nearly10 y ears ago, the Tuareg shield was shown to be composed of 23 displaced terranes (Geology22 (1994) 641) whose relationships were deciphered in A € i ...
J. Liégeois, L. Latouche, M. Boughrara, J. Navez, M. Guiraud   +4 more
semanticscholar   +4 more sources

U–Pb chronology and geochemistry of detrital monazites from major African rivers: Constraints on the timing and nature of the Pan-African Orogeny

Precambrian Research, 2016
Abstract The African continent consists of several cratons rimmed by orogenic belts, which were mainly formed by collisions of the cratons during the Gondwana supercontinent assembly. Understanding of the timing and nature of the Pan-African Orogeny is essential to decipher the development of the African continent and Gondwana supercontinent.
K. Itano, T. Iizuka, Q. Chang, J. Kimura, S. Maruyama   +4 more
semanticscholar   +4 more sources

New constraints on the Pan-African Orogeny in Central Zambia: A structural and geochronological study of the Hook Batholith and the Mwembeshi Zone

Tectonophysics, 2014
Abstract In Central Zambia, the Mwembeshi Zone (MwZ) separates two branches of the Pan-African Orogen: the Lufilian Arc and the Zambezi Belt. To the north of the MwZ, the Hook Batholith was emplaced within Neoproterozoic Katangan metasedimentary rocks.
Kalin Naydenov, J. Lehmann, K. Saalmann, L. Milani, J. Kinnaird, Guy Charlesworth, D. Frei, W. Rankin   +7 more
semanticscholar   +4 more sources