pan-african mobile belts as evidence for a transitional tectonic regime from intraplate orogeny to plate margin orogeny @inproceedings{kroner1979panafricanmb, title={pan-african mobile belts as evidence for a transitional tectonic regime from intraplate orogeny to plate margin orogeny}, author={alfred kröner}, year={1979} } a. kröner
The surrounding Pan-African mobile belts, characterized by a much thinner mechanical boundary layer and more radioactive crust, were the locus of A-type granitoids, volcanism, tectonic reactivation and basin development during the Phanerozoic. During oceanic closures leading to the assembly of Gondwana, lithosphere behaviour was …
The surrounding Pan-African mobile belts, characterized by a much thinner mechanical boundary layer and more radioactive crust, were the locus of A-type granitoids, volcanism, tectonic reactivation and basin development during the Phanerozoic. During oceanic closures leading to the assembly of Gondwana, lithosphere behaviour was controlled by ...
Pandyan Mobile Belt (PMB) is the name given by Ramakrishnan (1993, 1988) to the Southern Granulite Terrain (SGT) situated to the south of the E-W trending Palghat-Cauvery Shear Zone (PCSZ) (Fig. 8.1). ... Recently, Pan-African ages have been reported from the Madurai Block. Rb-Sr age of 550 ± 15 Ma is reported from Madurai …
Pan-African mobile belts. Despite superficial cover, which obscures deeper tectonic relationships, the Damara Belt appears to link up, in a northeast direction, with the Pan-African Katangan/Lufilian Arc system of Central Africa. The orogen can be divided into a number of distinct zones on the basis of stratigraphy, structure, metamorphic grade
develop in the vicinity of the migrating triple junction, where the linear mobile belts intersect. Although it ... 2015] that shows locations of the Pan-African and Brasiliano orogenic belts (RP, Rio de la Plata Craton; SF, São Francisco Craton). Tectonics 10.1002/2015TC003899 LEHMANN ET AL. TECTONIC EVOLUTION NORTHERN …
The Central African Fold Belt (CAFB) in Cameroon is a part of the vast Brasiliano-Pan-African Fold Belt, extending from Cameroon to the NE of Brazil (Abdelsalam et al. 2002). Metasedimentary rocks ...
[1] Archean cratons, and the stitching Proterozoic orogenic belts on their flanks, form an integral part of the Southern Africa tectonic landscape. Of these, virtually nothing is known of the position and thickness of the southern boundary of the composite Congo craton and the Neoproterozoic Pan-African orogenic belt due to thick …
The Pan-African Mobile Zone. The Pan-African Dahomeyide Belt is located on the southeastern margin of the West-African Craton (Figures 1 and 2). It comprises different lithostructural units in the West (external structural units) or in the East (internal structural units), ...
DOI: 10.1016/0301-9268(77)90040-7 Corpus ID: 129436875; The intracratonic branch of the Damara Orogen in South West Africa II. Discussion of relationships with the Pan-African mobile belt system☆
The surrounding Pan-African mobile belts, characterized by a much thinner mechanical boundary layer and more radioactive crust, were the locus of A-type granitoids, …
Pan-African and pre-pan-African history of the Hoggar (Algerian Sahara) in the light of new geochronological data from the Aleksod area. Precam. Res. (1976) ... The Damara mobile belt in the south-western kaokovelt, South West Africa; Y. Hasui et al. The Ribeira folded belt. Rev. Bras. Geociencias (1975)
…mobile-belt formation known as the Pan-African episode (about 950 to 550 million years ago), which generated long fold belts, such as the Mozambique belt along the east …
The surrounding Pan-African mobile belts, characterized by a much thinner mechanical boundary layer and more radioactive crust, were the locus of A-type granitoids, volcanism, tectonic reactivation and basin development during the Phanerozoic. ... 100-150 km beneath the Pan-African belts (Roussel & Lesquer 1991). These estimates correspond …
The term 'Pan-African' was coined by WQ Kennedy in 1964 on the basis of an assessment of available Rb-Sr and K-Ar ages in Africa. The Pan-African was inter- preted as a tectono-thermal event, some 500 Ma ago, during which a number of mobile belts formed, sur- rounding older cratons. The concept was then extended to the Gondwana continents ...
The Pan-African orogenic belts in general are believed to have formed between 650–500 Ma. They are further classified into three belts, including the western belt ...
The Trans-Sahara belt located in West Africa lies between the West African Craton (WAC) in the west, the Sahara Metacraton, and the Congo craton in the east (Fig. 1). It is a north–south oriented Pan African mobile belt extending over 3000 km long and 500–800 km wide (Cahen et al., 1984, Green, 1993).
The Pan-African belt of central northwest Africa is part of the Transaharan belt (Cahen et al. 1984) and has been interpreted by Black et al. (1979) and Caby et al. (1981) as a collision belt formed during a Wilson cycle. The Tilemsi suture zone separates the stable West African Craton (passive margin) from the mobile belt (active margin). Pan …
The term 'Pan-African' was coined by WQ Kennedy in 1964 on the basis of an assessment of available Rb-Sr and K-Ar ages in Africa. The Pan-African was inter- preted as a …
The Eastern Ghats Mobile Belt (EGMB) derives its name from the mountain of Eastern Ghats in the east coast of India. Apart from reconnaissance survey by individual geologists (C.S. Middlemiss, T.L. Walker, L.L. Fermor, V. Ball), the Geological Survey of India provided a geological map of the EGMB on 1:50,000 scale in later part of the 20th …
in parts of the Pan-African mobile belt of South India P. Sengupta & U. Dutta & Uttam K. Bhui & D. Mukhopadhyay Received: 31 March 2008 /Accepted: 12 November 2008 / Published online: 19 December 2008 # Springer-Verlag 2008 Abstract The Pan-African tectonothermal activities in areas near Sittampundi, south India, are characterized by
The junction between Pan African mobile belts in Namibia: its struc- tural history. Tectonophysics, 76: 593. In Namibia there is a junction between a Pan-African …
Pan-African mobile belts. Despite superficial cover, which obscures deeper tectonic relationships, the Damara Belt appears to link up, in a northeast direction, with the Pan …
A large proportion of the African Crust yields Pan-African radiometric ages (650-450 Ma). The Pan-African domains form a network of mobile belts surrounding cratons which remained relatively stable, … Expand
argued that the late Proterozoi c/Pan-African granulites in the Eastern Ghats belt north of the Godavari rift, are unlikely to be reworked equivalents of any older granulitic crust, as is the case ...
Abstract. In Namibia there is a junction between a Pan-African age (650-450 m.y.) orogenic system which follows the western rim of Africa and an ENE-trending arm …
A large proportion of the African Crust yields Pan-African radiometric ages (650-450 Ma). The Pan-African domains form a network of mobile belts surrounding cratons which …