Selaus oppiaineen mukaan kokoelmassa Pro gradu -tutkielmat ja diplomityöt sekä syventävien opintojen opinnäytetyöt (kokotekstit) Kallioperägeologia
Aineistot 1-15 / 15
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3D-modelling of fault-induced small-scale secondary fracturing in crystalline rocks
(13.07.2021)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 ...avoin -
Correlation of bedrock outcrop structures with subsurface data - with emphasis on the needs of geoenergy research
(28.02.2023)The demand of energy is constantly increasing in this rapidly developing world. At the same time, the transition of contaminant ways of energy production is more often replaced by production methods that are using renewable ...avoin -
Footwall basal thrust, Sakatti Cu-Ni-PGE deposit, Northern Finland
(08.06.2021)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 ...avoin -
Geochemical characteristics of felsic and intermediate plutonic rocks in Pasalanmäki, Leppävirta on Archean-Proterozoic boundary
(29.11.2023)The area of Pasalanmäki in Leppävirra has previously been studied from the point of ore potential, focusing especially on the mafic intrusions that can be found in the area. However, a more detailed description and ...avoin -
Hydrothermal alteration of medium-grade metamorphic rocks of Metsämonttu VMS deposit, southern Finland : A comparative portable XRD and near-infrared spectroscopy analysis
(28.12.2021)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 ...avoin -
Koillismaan syväreiän happamien kivilajien iänmääritys sekä geokemiallinen ja petrografinen luokittelu
(09.03.2023)Koillismaan ja Näränkävaaran kerrosintruusioita yhdistävää vyöhykettä on tutkittu geofysiikan avulla vuosikymmeniä. Vyöhyke esiintyy anomaliana magneettisissa- ja painovoimakartoissa ja anomalian syvyys on mallinnusten ...avoin -
Metallogeny of remobilised komatiite-associated Sika-aho nickel deposit, Kuhmo greenstone belt
(21.12.2022)Growing demand of nickel requires new discoveries to be made, highlighting the need for better understanding of mineralisation processes. All Archaean nickel deposits are invariably metamorphosed and deformed, which has ...avoin -
Petrography and emplacement mechanism of the Tanhua mafic complex in Central Lapland greenstone belt
(30.09.2023)The Tanhua mafic complex consists of three different mafic intrusions (Kylälampi, Kannusvaara, and Markkinaselkä) in ca. 54 km2 area. The complex locates ca. 45 km from Sodankylä towards NE. The country rocks contain ...avoin -
Petrography and genesis of Vaajasalmi graphite targets in Rautalampi Central Finland
(21.10.2022)Natural graphite is listed on the European Union's top 30 most critical minerals and is mainly imported outside of Europe. Graphite value and demand increase are driven by electrification since its extraordinary features ...avoin -
Scalability of lineament and fracture networks within the crystalline Wiborg Rapakivi Batholith, SE Finland
(30.01.2020)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 ...avoin -
Structural control of dykes and veins in the Mansikka-aho area, Evijärvi, Western Finland
(09.07.2021)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 ...avoin -
Structural control of gold deposits in the Huittinen area, SW Finland
(27.12.2022)The purpose of this thesis is to investigate the relationship between bedrock structures and orogenic gold deposits in the Huittinen area, southwestern Finland by the means of bedrock mapping and structural analysis. The ...avoin -
STRUCTURAL CONTROL OF THE OROGENIC GOLD DEPOSITS IN KULLAA, SW FINLAND
(18.05.2020)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 ...avoin -
Structural interpretation of the Iso-Kuotko area, Lapland, with implications to gold precipitation
(22.12.2023)Central Lapland Belt (CLB) in Northern Finland hosts multiple orogenic gold deposits from which Iso-Kuotko gold deposit is one. The Iso-Kuotko deposit comprises three mineralizations: Kati, Retu and Tiira. Previous studies ...avoin -
Turun alueen erodoituneen kallioperän yläpinnan 3D-mallinnus geoteknisten kairausten avulla
(29.06.2023)Turun seudulla on pulaa hyvästä rakennuspohjasta, jonka vuoksi rakentaminen suuntautuu usein epäedullisimmille savikkoalueille. Tämän vuoksi geologisilla tekijöillä, kuten kallion rikkonaisuudella ja savikerrosten paksuudella, ...avoin