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Aineistot 1-10 / 23
Svecofennian granitic magmatism in the Salo area, SW Finland − in situ U−Pb age determinations on zircon and monazite
(2019-12-16)
The bedrock of southern Finland was formed in a series of collisional events during the Svecofennian orogeny c. 1.92−1.79 Ga ago. The orogeny is divided in two main compressional stages: the Fennian (1.89−1.87 Ga) and ...
A multidisciplinary investigation of the Barösund Shear Zone area, southern Finland
(2019-11-28)
The Barösund shear zone (BSZ) is a roughly 35 kilometres long and circa 500 m wide shear zone located within the Ekenäs archipelago, southern Finland. BSZ has an overall E-W trend but turns into N-S oriented in the middle ...
Scalability of lineament and fracture networks within the crystalline Wiborg Rapakivi Batholith, SE Finland
(2020-01-30)
Multiscale lineament and fracture extraction conducted within the Wiborg Rapakivi Batholith offers insights both into the brittle bedrock structures of the batholith and to the scale-dependence of lineament and fracture ...
Classification of iron meteorites and description of mineralogy, geochemistry, and texture of the Lieksa-4 meteorite
(2022-09-20)
Iron meteorites can be classified to several different structural and chemical groups based on their composition, mineralogy, and textural features. The Lieksa-4 meteorite is a find from Löpönvaara, Lieksa, Eastern Finland. ...
STRUCTURAL CONTROL OF THE OROGENIC GOLD DEPOSITS IN KULLAA, SW FINLAND
(2020-05-18)
The Pomarkku block in SW Finland comprises four known orogenic gold mineralizations in the vicinity of Kullaa municipality. Previous studies have focused on the geochemical features of the mineralizations whereas the ...
Lounais-Suomen migmatiittivyöhykkeiden metamorfoosin ikämääritykset
(2021-12-23)
Tämän työn tarkoituksena oli selvittää, eroavatko Lounais-Suomen
migmatiittivyöhykkeiden metamorfoosin iät toisistaan. Ikämäärityksiä varten otettiin neljä
näytettä Kynsikankaan hiertovyöhykkeen yli ulottuvalta, ...
Hydrothermal alteration of medium-grade metamorphic rocks of Metsämonttu VMS deposit, southern Finland : A comparative portable XRD and near-infrared spectroscopy analysis
(2021-12-28)
Hydrothermal alteration processes are connected to the formation of many economically important ore deposits. This study represents a comparative portable XRD (pXRD) and near-infrared (NIR) spectroscopy analysis of four ...
Footwall basal thrust, Sakatti Cu-Ni-PGE deposit, Northern Finland
(2021-06-08)
The Sakatti Cu-Ni-PGE deposit, located ~20 km northeast from the municipality of Sodankylä, has been formerly investigated mainly for its economic potential, while the structural character of the deposit has been left in ...
3D-modelling of fault-induced small-scale secondary fracturing in crystalline rocks
(2021-07-13)
The objective of this Thesis was to develop new methods to model the microstructures within the bedrock, as these models improve the understanding of the properties of the micro-scale fracture networks and could be further ...
Structural control of dykes and veins in the Mansikka-aho area, Evijärvi, Western Finland
(2021-07-09)
The northern part of the Aho metavolcanic belt within Ostrobothnia schist belt has been explored intensively because of the vicinity of the discovered spodumene pegmatite deposits in the Kaustinen area. The aim of this ...