Pan-African alkali granites and syenites of Kerala as imprints of taphrogenic magmatism in the South Indian shield [PDF]
Granite and syenite plutons with alkaline affinities ranging in age from 550 to 750 Ma sporadically puncture the Precambrian granulites of the Kerala region.
Drury, S. A., Iyer, S. S., Santosh, M.
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Petrology of a non-indigenous microgranitic clast in polymict ureilite EET 87720: evidence for formation of evolved melt on an unknown parent body [PDF]
, 2015 EET 87720 is a polymict ureilite breccia known to contain numerous non-indigenous fragments. We have discovered a microgranitic clast in an interior chip of EET 87720.
Agee +46 more
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Petrology and Geochemistry of the Aroud Granitoid Pluton, North of Alam Kuh, Central Western Alborz [PDF]
پترولوژیIntroductionThe central Alborz, a tectono-stratigraphic terrane within the Alborz Mountains, underwent significant tectonic evolution linked to the Late Triassic Cimmerian orogeny and the subsequent collision between the Iranian microplate and the ...
Shadi Noori KHeymehsari +3 more
doaj +1 more source
The Mountain Pass Rare-Earth Deposits [PDF]
, 1954 Rare-earth minerals were discovered near Mountain Pass in northeastern San Bernardino County, Calif., in April 1949, and in the following year the Sulphide Queen carbonate body was found.
Olson, J. C., Pray, L. C.
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Mineral Analysis in Rocks Using XRD and Petrography [PDF]
, 2019 Rock formation in a region is influenced by many factors such as tectonic and volcanic systems of the area. Both activities will affect the microstructure of the rock. This study analyzes mineral composition in three different rocks.
Iqbal, M. (Mochamad) +2 more
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Magmatic evolution of topaz-bearing granite stocks within the Wiborg rapakivi granite batholith [PDF]
, 2007 This study brings new insights into the magmatic evolution of natural F-enriched peraluminous granitic systems. The Artjärvi, Sääskjärvi and Kymi granite stocks within the 1.64 Ga Wiborg rapakivi granite batholith have been investigated by petrographic ...
Lukkari, Sari
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Discover GeoscienceConstruction companies and the local population use the rocks as construction materials without considering their characteristics. However, characterizing these massifs levels before their use is essential to guarantee the quality and durability of the ...
Abdoul Aboubakar +8 more
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Mineralogia dos greisens da área Grota Rica, Plúton Água Boa, Pitinga, Amazonas
Brazilian Journal of GeologyResumo: O topázio-álcali-feldspato-granito, fácies mais evoluída do plúton Água Boa, foi afetado por processos de alteração hidrotermal, que culminaram com a formação de greisens e veios de quartzo, principais hospedeiros de mineralizações de Sn e ...
Gilmara Regina Lima Feio +4 more
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Tourmaline-quartz-cassiterite mineralization of the Land's End Granite at Nanjizal, west Cornwall [PDF]
, 2013 Nanjizal is one of the few locations in the southern segment of the Land's End Granite (Early Permian) where magmatic-hydrothermal tin mineralization has been worked. Three principal mineralization episodes are recognized.
Bromley, A.V. +5 more
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Structural and paragenetic analysis of swarms of bubble like pegmatites in a miarolitic granite from Assunção South – Viseu – Central Portugal [PDF]
, 2013 Publicado em "PEG 2013 : Contributions to The 6th International Symposium on Granitic ...
Araújo, Pedro P. +7 more
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