04/04/2018

Science Blog: Bedrock – Shattered building material

Text:
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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03/05/2018

Science Blog: Chemistry of urban soils reflects both geology and anthropogenic sources

Text:
Timo Tarvainen, Senior Scientist

Urbanisation is one of the modern world’s megatrends. Currently, urban areas cover just 2.8% of the global land area, but they are home to more than half of the world’s population. In Europe, as much as 70% of the population is urban. At the same time, increasing environmental pollution is another global megatrend. Releases of […]

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02/08/2018

Science Blog: Geodiversity of the Baltic Sea

Text:
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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01/15/2018

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

Text:
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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12/04/2017

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

Text:
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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10/24/2017

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

Text:
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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10/02/2017

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

Text:
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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08/14/2017

Science Blog: Gas studies help to elucidate safety issues related to underground construction

Text:
Riikka Kietäväinen, Research Scientist

As economic natural gas accumulations are not known from Finland, gases have often been overlooked in bedrock and groundwater studies. However, gases, including methane, nitrogen, hydrogen and helium, can also be found in the Precambrian crystalline bedrock of the Fennoscandian Shield. The gases are mainly dissolved in water, but bubbling is also seen here and […]

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06/05/2017

Science Blog: Current Research Projects

Text:
Niko Putkinen, Geologist

Modern and Ancient Glaciations project Niko has been collaborating in the utilization of new imagery (LiDAR) to shed new light on the origin of drumlins and megaflutings formed under soft-bedded glaciers. Following his postdoctoral year in the laboratory of Nick Eyles at the Department of Physical and Environmental Sciences, University of Toronto at Scarborough (UTSC) […]

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05/10/2017

Science Blog: Stable Isotope Studies by Microbeam Analyses and Sources of Fluids in Orogenic Gold Mineral Systems

Text:
Ferenc Molnár, Research Professor

In situ mass spectrometric techniques are among the most rapidly developing analytical techniques that are revolutionizing our understanding of mineralogy, petrology and geochemistry. The advantage of these techniques is that they enable us to study very small mineral samples (e.g. a few hundreds of cubic micrometres), while still producing precise analyses of isotope ratios or […]

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