Miarolitic cavities in rapakivi granite on Hästholmen, Loviisa, southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 Miarolitic cavities are described from drill cores taken from rapakivi granite on Hästholmen, an island about 80 km east of Helsinki. The distribution of cavities between different textural types of rapakivi seems to favour the equigranular medium to ...
K. Lindqvist, V. Suominen
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Magmatic constraints on localization of natural stone deposits in the Vehmaa rapakivi granite batholith, southwestern Finland [PDF]
Bulletin of the Geological Society of Finland, 2011 The 1580–1570 Ma old Vehmaa rapakivi granite batholith was studied with the aim to define the geological constraints for localization of natural stone deposits in the batholith.
O. Selonen +3 more
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Surface weathering of rapakivi granite outcrops – implications for natural stone exploration and quality evaluation [PDF]
Estonian Journal of Earth Sciences, 2008 Implications of surface weathering of rapakivi granite outcrops for natural stone evaluation were studied in the Wiborg rapakivi granite batholith in southeastern Finland.
Härmä, Paavo, Selonen, Olavi
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Fluid history from crystal cavities in rapakivi, Pyterlahti, southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 The crystal cavities lined with quartz, feldspars, biotite, fluorite and a number of accessory phases occurring in the Haikonvuori pyterlite quarry in the Wiborg rapakivi massif were studied with mineralogical, petrographical and chemical methods ...
K. Kinnunen, K. Lindqvist, R. Lahtinen
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Fluid inclusions in cavity quartz crystals in rapakivi from Luumäki, southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1991 Fluid inclusions in selected cavity quartz crystals in rapakivi granite from Luumäki, southeastern Finland, were studied by microthermometric methods.
M. Poutiainen
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Petrography and geochemistry of the topaz-bearing granite stocks in Artjärvi and Sääskjärvi, western margin of the Wiborg rapakivi granite batholith [PDF]
Bulletin of the Geological Society of Finland, 2002 The Artjärvi and Sääskjärvi granite stocks at the western margin of the Wiborg rapakivi batholith are multiphase rapakivi granite intrusions in which the most evolved phase is topaz-bearing granite.
S. Lukkari
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Hybridization in the subvolcanic Jaala-Iitti complex and its petrogenetic relation to rapakivi granites and associated mafic rocks of southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1995 The 1630 Ma Jaala-Iitti complex is an example of bimodal rapakivi granite magmatism in which the interaction of granite and diabase magmas have led locally to hybridization.
P.T. Salonsaari
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Phanerozoic veins of galena in the Åland rapakivi area, southwestern Finland [PDF]
Bulletin of the Geological Society of Finland, 1979 Some minor galena mineralizations are in part associated with clastic dykes of Cambrian sandstone in the Aland rapakivi area. Galena also occurs disseminated in greisen-type mineralizations.
L. Bergman, B. Lindberg
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RAPAKIVI MAGMATISM IN THE MIDDLE INIRIDA BASIN, GUAINÍA DEPARMENT, COLOMBIA [PDF]
, 2022 In eastern Colombia, the crystalline basement is intruded by several anorogenic granites of Mesoproterozoic age. One of these anorogenic granitic intrusions outcrops in the area of the indigenous Matraca and Danta communities, at the middle ...
Frantz, José Carlos +5 more
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Hydrogeological Characterization of Crystalline Bedrock Using Borehole Magnetic Resonance
Groundwater, Volume 61, Issue 6, Page 793-815, November/December 2023., 2023 This study is one of the first to test the applicability of the borehole magnetic resonance (BMR) method in crystalline “hard rock” environment. The aim was to investigate whether the BMR measurements could constitute an effective method for investigating detailed permeability variations in the crystalline bedrock of the two study sites: Sakatti mining
Salla Eeva +7 more
wiley +1 more source