3.9.2018

Science Blog: Metamorphic map of Finland

Teksti:
Pentti Hölttä, Senior Scientist

In the Precambrian bedrock of Finland, almost all rocks are metamorphosed, and most metamorphic rocks have undergone medium- to high-grade metamorphism, in which the original volcanic, sedimentary and igneous rocks have been altered to deformed gneisses that can again be partially melted. Metamorphism is a feature that can easily be mapped, providing essential information on […]

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22.5.2018

Science Blog: GECCO – High-performance geoscientific computing in multi-scale mineral potential studies

Teksti:
Eevaliisa Laine, Senior Scientist

A central task in mine site evaluation and 3D mineral potential studies is to collect data on multiple spatial scales and subsequently use inverse methods to infer the location and extent of economically interesting mineral deposits. The data sets comprise, for example, airborne and ground geophysical data, drill-hole data, geological maps and cross-sections, drill-core logs […]

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16.5.2018

Science Blog: MPM Online Tool – find ore deposits smartly with geodata

Teksti:
Vesa Nykänen, Research Professor
Maarit Middleton, Senior Scientist
Niina Ahtonen, Head of the Digital Products and Services Unit
Tero Niiranen, Senior Scientist
Juha Strengell, Systems Specialist
Janne Kallunki, Specialist Planner
Kimmo Korhonen, Geophysicist
Merja Janhila, Geologist
Ilkka Lahti, Geophysicist

Have you ever thought it would be cool to spot the best places for a deposit type of your interest in Lapland? Many people have, especially exploration managers in junior mining companies or anybody involved in mineral exploration. Lapland is one of the most active mineral exploration areas in Europe, not least because of the […]

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4.4.2018

Science Blog: Bedrock – Shattered building material

Teksti:
Mira Markovaara-Koivisto, Geologist

The building of underground facilities in bedrock is increasing in the modern world. In large cities, underground alternatives are being considered due to the lack of space above ground, to ease traffic and parking in city centres, and to guarantee a stable environment, for instance, for super computers and electrical lines. Bedrock can also be […]

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8.2.2018

Science Blog: Geodiversity of the Baltic Sea

Teksti:
Anu Kaskela, Geologist

During recent years, the term ‘geodiversity’ has been used in parallel with biodiversity to advance the integrated management of the environment and to emphasize that ecosystems consists of both biotic and abiotic components. Geodiversity includes the natural range of geological, geomorphological, and soil features and their assemblages, relationships, properties, interpretations, and systems (Gray, 2004). So […]

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15.1.2018

Science Blog: What will happen to a waste-rock dump in hundreds of years? A stochastic multicomponent reactive transport model can support this prediction

Teksti:
Daniele Pedretti, Research Professor

The problem of mine waste management Mining activities can generate large volumes of waste rocks (Figure 1) that are generally stored in large unsaturated dumps on the land surface at the mine site. Waste rocks are not tailings. Waste rocks comprise the overburden that overlies an ore or mineral body and is displaced during mining […]

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4.12.2017

Science Blog: GIS-based mineral potential targeting is making the most out of geoscience data to enable new discoveries

Teksti:
Vesa Nykänen, Research Professor

Mineral potential targeting or mineral prospectivity mapping can be defined as a multi-step process of extracting and weighting mappable features indicating the critical parameters of the mineral deposit types, or more preferably the mineral systems, that are being sought. This is achieved by combining the evidence layers, and finally ranking promising target areas for further […]

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24.10.2017

Science Blog: The fight is not over yet – our surface waters are still facing many pressures

Teksti:
Tommi Kauppila, Research Professor

The chemical and ecological status of Finnish surface waters has considerably improved since the 1970s. However, some of the stressors that affect our lakes and rivers have proved difficult to control, and some new pressures have also appeared. While point source stressors such as municipal and industrial waste waters are nowadays well managed, diffuse loadings […]

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2.10.2017

Science Blog: Understanding long-term evolution in nuclear waste disposal through geology

Teksti:
Heini Reijonen, Chief Scientist

Geological disposal of radioactive waste Several options have been investigated for the management of radioactive waste, especially high-level wastes, such as spent nuclear fuel. Geological disposal is the internationally preferred option to deal with high-level radioactive waste. Even in cases where the fuel is treated or re-used, high-level waste, with variable compositions, will still be […]

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