Results 31 to 40 of about 24,581 (234)

Probing the edge of the West African Craton:a first seismic glimpse from Niger [PDF]

, 2015
Constraints on crustal and mantle structure of the Eastern part of the West African Craton have to date been scarce. Here we present results of P receiver function and SK(K)S wave splitting analyses of data recorded at IMS array TORD in SW Niger. Despite
Feybesse J.‐L., J.‐Michael Kendall, James Wookey, Jeanette F. Di Leo, Neil D. Selby   +4 more
core   +2 more sources

The geology of the Capiru Group, Curitiba Terrane, Southern Ribeira Belt (Brazil)

Journal of Maps, 2021
The Capiru Group is a Neoproterozoic metasedimentary unit that crops out in the Curitiba terrane, Southern Ribeira Belt, Brazil. A detailed geological mapping of this unit was performed during 2016 to 2020. Original interpretations and the new geological
Larissa da Rocha Santos, André Luis Spisila, Daniel Patias Guimarães, Luizemara Szameitat, Alessandra de Barros e Silva Bongiolo, Leonardo Fadel Cury   +5 more
doaj   +1 more source

Tectonic Fabric, Geochemistry, and Zircon-Monazite Geochronology as Proxies to Date an Orogeny: Example of South Delhi Orogeny, NW India, and Implications for East Gondwana Tectonics

Frontiers in Earth Science, 2021
We have dated the South Delhi orogeny, Aravalli-Delhi Mobile Belt (ADMB), NW India, using the tectonic fabric, geochemistry, and zircon-monazite geochronology as the proxies. The South Delhi Terrane (SDT), a passive margin domain in the ADMB, consists of
Subhash Singh, Bert De Waele, Anjali Shukla, B. H. Umasankar, Tapas Kumar Biswal   +4 more
doaj   +1 more source

Granitoids marking the end of the brasiliano (Pan - African) orogeny within the central tectonic domain of the Borborema Province

Revista Brasileira de Geociências, 2000
I. P. Guimarães, C. Almeida, A. F. S. Filho, J. M. M. Araújo   +3 more
semanticscholar   +3 more sources

The timing and duration of the Delamerian orogeny: Correlation with the Ross Orogen and implications for Gondwana assembly [PDF]

, 2006
Copyright © 2006 by the University of Chicago PressThe Antarctic Ross and the Australian Delamerian orogenies are the consequence of stress transfer to the outboard trailing edge of the newly assembled Gondwana supercontinent.
Burtt, A., Dougherty-Page, J., Elburg, M., Foden, J.   +3 more
core   +1 more source

Volcanic Response to Post-Pan-African Orogeny Delamination: Insights from Volcanology, Precise U-Pb Geochronology, Geochemistry, and Petrology of the Ediacaran Ouarzazate Group of the Anti-Atlas, Morocco

Minerals
Post-collisional volcanism provides valuable insights into mantle dynamics, crustal processes, and mechanisms driving orogen uplift and collapse.
M. A. Mediany, Nasrreddine Youbi, Mohamed Ben Chra, Oussama Moutbir, I. Hadimi, João Mata, Jören-Frederik Wotzlaw, José Madeira, M. Doblas, E. A. Khalaf, Rachid Oukhro, Warda El Moume, J. Ounar, A. A. Lahna, M. A. Boumehdi, Andrey Bekker   +15 more
semanticscholar   +1 more source

Evidence of Major Structural Features over the Pan-African Domain in the Bertoua-Mbangue Area (East Cameroon) from a Multiscale Approach of Modeling and Interpretation of Aeromagnetic Data

International Journal of Geophysics, 2019
The aim of this study is to investigate crustal structures from East Cameroon, using aeromagnetic data. The modeling of aeromagnetic data is conducted using the Oasis Montaj 8.0 software.
Owono Amougou Olivier Ulrich Igor, Ndougsa Mbarga Theophile, Meying Arsène, Assembe Stephane Patrick, Ngoh Jean Daniel, Ngoumou Paul Claude, Yandjimain Justine   +6 more
doaj   +1 more source

Integration of magnetic residuals,derivates and located euler deconvolution for structural and geologic mapping of parts of the precambrian gneisses of Ago-Iwoye, Southwestern Nigeria [PDF]

, 2020
Ground based magnetic survey conducted between longitude 06O 55I 51IIN –06O 55I 54IIN and latitude 03O 52I 06IIE –03O 52I 4.8IIE (Olabisi Onabanjo University) remarkably revealed a consistent subsurface NW -SE structural azimuth of localized ...
Adenuga, Omolara A., Alaka, Afolabi O., Ariyo, Stephen Oluwafemi, Bayewu, Olateju O., Coker, Joseph O.   +4 more
core   +1 more source

Gamma-ray spectrometry, magnetic and gravity signatures of Archean nuclei of the Borborema Province, Northeastern Brazil

Journal of the Geological Survey of Brazil
Gamma-ray spectrometry, as well as magnetic and gravity data, are used to investigate the geophysical signatures of the Archean nuclei of the Borborema Province.
Roberto Gusmão de Oliveira, Nitzschia Regina Rodrigues Domingos, Walter Eugênio de Medeiros, Vladimir Cruz de Medeiros, Frank Gurgel Santos, Marcus Flavio Nogueira Chiarini, Marília de Araújo Costa Rodrigues   +6 more
doaj   +1 more source

Continental extension of northern Gondwana margin in the Eastern Himalaya: Constraints from geochemistry and U–Pb zircon ages of mafic intrusives in the Siang window, Arunachal Himalaya, India

Comptes Rendus. Géoscience, 2020
We report new U–Pb zircon age and whole-rock geochemical data from the Pangin mafic intrusive rocks of the Siang window, eastern Himalayas. These mafic rocks are medium to coarse-grained gabbros, consisting mainly of plagioclase and clinopyroxene with ...
Oinam, Govind, Singh, A. Krishnakanta, Joshi, Mallickarjun, Dutt, Amrita, Singh, M. Rajanikanta, Singh, N. Lakhan, Singh, R. K. Bikramaditya   +6 more
doaj   +1 more source