Results 121 to 130 of about 3,793 (208)

Late orogenic carboniferous extensions in the Variscan French Massif Central

, 1995
International audienceThe Variscan French Massif Central experienced two successive stages of extension from Middle Carboniferous to Early Permian. In the northern Massif Central, the first stage began in the late Visean, immediately after nappe stacking,
Alabouvette, Arthaud, Audrain, Barbarin, Bayer, Becq-Giraudon, Bernard-Griffiths, Berthe, Berthier, Binon, Blès, Blès, Bogdanoff, Bonijoly, Bonnion, Bouchez, Boutin, Broutin, Brun, Burg, Burg, Burg, Caen-Vachette, Carmignani, Carpena, Cassard, Cheilletz, Costa, Couturié, De Waard, Demange, Deroin, Dewey, Dewey, Didier, Dumas, Dupraz, Duthou, Duthou, Duthou, Délénin, Echtler, Echtler, Fabre, Faure, Faure, Faure, Faure, Faure, Faure, Faure, Fayol, Feist, Feix, Fernandez, Feybessse, Feys, Floc'h, Forestier, Freytet, Gagny, Gapais, Gibbs, Gras, Grolier, Grolier, Gélard, Hamet, Hollinger, Hutton, Labernardière, Lafont, Lagarde, Lameyre, Lameyre, Ledru, Ledru, Ledru, Legrand, Leistel, Lerouge, Lespinasse, Malavieille, Malavieille, Maluski, Mattauer, Matte, Mollier, Mollier, Montel, Mouctar, Ménard, Paterson, Paterson, Petitpierre, Pin, Pons, Prager, Quenardel, Rey, Robert, Rolin, Santallier, Schuilling, Thompson, Turland, Vallé, Van den Driessche, Van den Driessche, Vasseur, Vetter, Vialette, Vigneresse, Vissers, Vivier   +114 more
core   +3 more sources

The Borborema Pegmatite Province, NE-Brazil revisited [PDF]

, 2015
Considering the internal structure, mineralogical distribution and geochemical data on K-feldspar, white micas, Nb-Taoxides, tourmalines, garnet and spinel, it becomes clear that the pegmatites classified as "heterogeneous" (Johnston 1945) include ...
Barreto, S., Beurlen, H., Da Silva, Marcelo R.R., Martin, R., Melgarejo i Draper, Joan-Carles, Souza Neto, J. A.   +5 more
core  

Mineralogical characterisation of tantalum ores for the optimization of their processing [PDF]

, 2016
Peer ReviewedPostprint (published ...
Alfonso Abella, María Pura, Anticoi Sudzuki, Hernán Francisco, Calvo Torralba, Daniel, García-Vallès, Maite, Guasch Cascallo, Eduard, Oliva Moncunill, Josep, Parcerisa Duocastella, David, Tomasa Guix, Oriol   +7 more
core   +1 more source

MINERALIZATION CONTROLS AND PETROGENESIS OF THE RARE METAL PEGMATITES OF NASARAWA AREA, CENTRAL NIGERIA

Earth Sciences Research Journal, 2008
The pegmatites of Nasarawa area occur in the central part of Nigeria. They are mainly hosted by phyllonites in a NNE-SSW trending shear zone lying east of some foliated Pan-African and West of Jurassic Afu Complex Younger Granites.
O.F. Akintola, J.I.D Adekeye
doaj  

Institute of Geology and Geophysics, Chinese Academy of Sciences-The time-space exploration from Earth core to galaxies. [PDF]

Natl Sci Rev, 2021
Zhang W, Zhao W, Zhao L.
europepmc   +1 more source

Isotopic systematics of zircon indicate an African affinity for the rocks of southernmost India. [PDF]

Sci Rep, 2020
Clark C, Collins AS, Taylor RJM, Hand M.
europepmc   +1 more source

Multi‐Stage Magmatism During Slab Exhumation Drives the Geochemical Evolution of Continental Crust: Insights From Paleozoic Granitoids in South Altyn, Western China

Geochemistry, Geophysics, Geosystems
The present continental crust is characterized by a felsic upper crust and a mafic lower crust, resulting from significant geochemical differentiation over geological time.
Long Tian, Liang Liu, Danling Chen, Yuting Cao, Yongsheng Gai, Tuo Ma, Qian Wang, Lei Kang   +7 more
doaj   +1 more source

Microcontinent subduction and S-type volcanism prior to India-Asia collision. [PDF]

Sci Rep, 2021
Yang Z, Tang J, Santosh M, Zhao X, Lang X, Wang Y, Ding S, Ran F.   +7 more
europepmc   +1 more source

Ptarmigan Fiord basement-cover thrust imbricates, Baffin Island, Nunavut [PDF]

The rocks at Ptarmigan Fiord on the Hall Peninsula of Baffin Island underwent midcrustal deformation during the formation of the Paleoproterozoic Trans-Hudson Orogen.
Carr, S D, Chadwick, T C, Dyck, B J, St-Onge, Marc R., Weller, O. M.   +4 more
core  

Coexisting divergent and convergent plate boundary assemblages indicate plate tectonics in the Neoarchean. [PDF]

Nat Commun, 2022
Huang B, Johnson TE, Wilde SA, Polat A, Fu D, Kusky T.   +5 more
europepmc   +1 more source