Results 51 to 60 of about 355 (71)

Petrology, geochemistry, and geochronology of the leucogranites in southernmost Finland [PDF]

In the southernmost part of the Svecofennian province in Finland, leucogranites and migmatites stemming from both igneous and sedimentary protoliths reflect the complex magmatic history of the Svecofennian orogeny between 1.89 and 1.82 Ga.
Anna Saukko, Kaisa Nikkilä, Markku Väisänen, Olav Eklund, Sören Fröjdö   +4 more
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Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera. [PDF]

Sci Rep
Pedrera A, Díaz-Alvarado J, Azor A, Folguera A, González-Menéndez L, García-Senz J, Hernaiz-Huerta PP, Ruiz-Constán A, Marín-Lechado C, Ramos A, López-Mir B, Rodríguez C, Jiménez-Borrego R, Hidas K.   +13 more
europepmc   +1 more source

ORIGIN OF TONALITE-TRONDHJEMITE-GRANODIORITE (TTG) GNEISS IN THE BASEMENT COMPLEX OF SOUTHWESTERN NIGERIA: LU-HF ISOTOPIC VIEW [PDF]

This research investigates and report the origin of Tonalite-trondhjemite-granodiorite gneiss (TTG) in the basement complex of southwestern Nigeria. The unit forms the country rock and comprise of migmatite and assorted gneisses collectively referred to ...
Akinola, Oluwatoyin O., James, Elvaene, Talabi, Abel O.   +2 more
core   +1 more source

Granulite geochemistry of the São Fidelis region, Central Ribeira Fold Belt, Rio de Janeiro State, SE Brazil [PDF]

, 2007
Bento dos Santos, Telmo, Fonseca, Paulo E., Munhá, José, Neto, Coriolano Dias, Tassinari, Colombo C. G.   +4 more
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Petrology and geochemistry of granulites from the São Fidelis area, Ribeira Belt, SE Brazil [PDF]

, 2007
Bento dos Santos, Telmo, Fonseca, Paulo E., Munhá, José, Neto, Coriolano Dias, Tassinari, Colombo C. G.   +4 more
core  

Migmatite from the Tekkali areaEastern GhatsIndia : Chemical investigation and P-T Estimation [PDF]

Yamamoto, Tetsuya
core  

Migmatite and Granulites in the patapatnam-Tekkali areaEastern GhatsIndia [PDF]

Miyashita, Yukari, Tani, Yasutaka, Yamamoto, Tetsuya   +2 more
core  

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Experimental simulation of melt migration in stromatic metatexite migmatites

Mineralogy and Petrology, 2010
Melting experiments on a gneissic protolith using the diamond trap technique produced an accumulation of crystals of biotite in the boundary of the diamond trap. Several hypotheses can be inferred to explain this feature, but textural evidence and calculations of the settling and drag velocities of the crystals suggest a model of extraction of melt due
Marcos García-Arias, Luis Guillermo Corretgé, Antonio Castro   +2 more
openaire   +1 more source

GEOCHEMICAL SIGNATURES OF METATEXITE AND DIATEXITE MIGMATITE WITHIN GWARZO LOW GRADE METASEDIMENTS NW NIGERIA

Science Forum (Journal of Pure and Applied Sciences), 2020
The study area shows a distinctive morphological and geochemical continuity from the early formed metasediments, to the metatexite (i.e. the banded orthogneiss and stromatic migmatite), to diatexite (i.e. nebulitic and nebulitic patch migmatite). The geochemistry indicates the decrease in Fe2O3, MgO, and TiO2 in the metatexite and diatexite with ...
Ahmed Sarki, Ahmed Haruna, Nasir Maiauduga   +2 more
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An in situ metatexite–diatexite transition in upper amphibolite facies rocks from Broken Hill, Australia

Journal of Metamorphic Geology, 2005
AbstractUpper amphibolite facies felsic gneiss from Broken Hill records the metatexite to schlieren diatexite to massive diatexite transition in a single rock type over a scale of tens to hundreds of metres. The metatexites are characterized by centimetre‐scale segregation of melt into leucosomes to form stromatic migmatite.
R. W. WHITE, N. E. POMROY, R. POWELL
openaire   +1 more source