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Timing of Episyenite Formation in the Proterozoic Suomenniemi Rapakivi Granite Complex (Finland)
Adam Abersteiner +10 more
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Rapakivi-related In-rich mineralisations in southeastern Fennoscandia
, 2019 openaire +2 more sources
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Rapakivi granite problems: plagioclase mantles and ovoid megacrysts
Australian Journal of Earth Sciences, 2016ABSTRACTMantling of alkali feldspar megacrysts by oligoclase (‘rapakivi texture’) generally can be interpreted as the result of magma mixing, although decompression is a viable interpretation, especially for high-level intrusions. Coexistence of mantled and unmantled crystals can be explained by transfer of mantled crystals (‘antecrysts’) from a mixed (
Ron H. Vernon
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Вулканология и сейсмология, 2023
The article presents new petrogeochemical data of rocks from the area of the Outer Islands of the Gulf of Finland. Previously, quartz porphyries of Gogland Island were considered as a standard of volcanic comagmates of Rapakivi granite of the Vyborg ...
E. N. Terekhov +4 more
semanticscholar +1 more source
The article presents new petrogeochemical data of rocks from the area of the Outer Islands of the Gulf of Finland. Previously, quartz porphyries of Gogland Island were considered as a standard of volcanic comagmates of Rapakivi granite of the Vyborg ...
E. N. Terekhov +4 more
semanticscholar +1 more source
APATITE GEOCHEMISTRY IN ROCKS OF KORSUN-NOVOMYRHOROD ANORTOSITE-RAPAKIVI GRANITE PLUTON
Mineralogical Journal, 2022Trace element concentrations (REEs, Y, Sr, Th, U) in apatites from the most typical rocks of the Korsun-Novomyrhorod anorthosite-rapakivi pluton (KNP) were measured.
O. Dubyna +4 more
semanticscholar +1 more source
Mineralogical Journal, 2022
The geochemical features of most distributed rocks from the Korsun'-Novomyrhorod Pluton are considered. The obtained data give reason to assume that the association of basic and intermediate rocks of the pluton was formed because of the differentiation ...
O. Dubyna +5 more
semanticscholar +1 more source
The geochemical features of most distributed rocks from the Korsun'-Novomyrhorod Pluton are considered. The obtained data give reason to assume that the association of basic and intermediate rocks of the pluton was formed because of the differentiation ...
O. Dubyna +5 more
semanticscholar +1 more source
Mineralogical Journal, 2022
Two species types of basic rocks contrasting in chemical and mineral composition were investigated within the Korsun-Novomyrhorod anorthosite-rapakivigranite pluton (KNP) of the Proterozoic age.
S. Kryvdik, O. Dubyna, V. Belsky
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Two species types of basic rocks contrasting in chemical and mineral composition were investigated within the Korsun-Novomyrhorod anorthosite-rapakivigranite pluton (KNP) of the Proterozoic age.
S. Kryvdik, O. Dubyna, V. Belsky
semanticscholar +1 more source
Petrological Features of Korsun'-Novomyrhorod Anorthosite-Rapakivi Granite Pluton
Mineralogical Journal, 2021The Korsun’-Novomyrhorod pluton is the second after the Korosten one in terms of the scale of Proterozoic (1757-1748 Ma) anorthosite-rapakivi-granite magmatism in the Ukrainian Shield.
S. Kryvdik, O. Dubyna, P. Yakubenko
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Nature, 1969
RAPAKIVI texture has rarely been reported in volcanic rocks1. A notable example of a volcanic body with rapakivi texture is a Miocene rhyolite2 that has an exposure area of about 1/16 square mile near California State Highway 178 on the east flank of Rhodes Hill 1/4 mile west of the eastern boundary of Death Valley National Monument.
A. L. EHRREICH, R. E. WINCHELL
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RAPAKIVI texture has rarely been reported in volcanic rocks1. A notable example of a volcanic body with rapakivi texture is a Miocene rhyolite2 that has an exposure area of about 1/16 square mile near California State Highway 178 on the east flank of Rhodes Hill 1/4 mile west of the eastern boundary of Death Valley National Monument.
A. L. EHRREICH, R. E. WINCHELL
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Bacterial weathering of rapakivi granite
Geomicrobiology Journal, 1981Rapakivi granite samples were incubated with Pseudomonas aeruginosa culture solutions in order to elucidate the possible role of bacteria in rapakivi (crumbling stone) disintegration. SEM micrographs showed micromorphological alterations on the incubated rapakivi surface at 21 to 23°C for 20 days.
Antti Vuorinen +3 more
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