05/10/2017

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

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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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04/26/2017

Science Blog: Groundwater as an Energy Resource in Finland

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Teppo Arola, Chief Expert

Groundwater can be seen as an option for renewable energy utilisation and not only a source of individual or municipal drinking water. Finland has multiple groundwater reservoirs that are easily exploitable, but groundwater energy is not commonly used for renewable energy production. For this blog, I would like to briefly highlight the outcomes of my […]

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03/20/2017

Science Blog: Assessing the unknown: Finland’s undiscovered mineral resources

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Kalevi Rasilainen, Geologist
Pasi Eilu, Senior Scientist

Assessments carried out by the Geological Survey of Finland (GTK) since 2008 indicate that Finland has notable undiscovered resources of several important metals. As of the end of 2016, assessment results have been published for platinum (Pt), palladium (Pd), gold (Au), silver (Ag), copper (Cu), zinc (Zn), nickel (Ni), cobalt (Co), lead (Pb), molybdenum (Mo) […]

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02/13/2017

Science Blog: Erosional sedimentary boundary divides clayey sediments for urban planning

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Antti Ojala, Senior Scientist
Joonas Virtasalo, Senior Scientist

Ongoing urbanization has caused profound changes in land use and construction in larger cities, where underground planning and the use of unconsolidated sediments with poorer ground conditions has increased. The expansion of cities to locations where superficial sediments are more challenging for construction purposes has increased the need for comprehensive understanding of the engineering geological […]

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12/18/2016

Science Blog: Portable XRF as an example of advanced on-site analysis methods in mineral exploration

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Pertti Sarala, Research Professor, Docent, Ph.D., EurGeol

Recent methodological development has given new possibilities to determine the chemical and mineralogical composition of sample materials with accuracy and quicker than before. Advanced portable field techniques provide a cost-effective way to analyse several types of samples directly in the field and increase the number of methods to be used in exploration. These methods provide […]

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12/12/2016

Science Blog: LiDAR revolution in geoscience

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Antti Ojala, Senior Scientist
Jukka-Pekka Palmu, Senior Researcher

The advent of LiDAR (Light Detection And Ranging) technology has enabled rapid documentation of geological and geomorphological characteristics and allowed significant advances in theories on these formations (e.g. Johnson et al., 2015). Previously detected mega-scale landforms, such as large drumlins and end moraine complexes, show up in LiDAR-based digital elevation models (DEM) in greater detail […]

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11/21/2016

Science Blog: High-resolution X-ray computed tomography: A 3D quantitative and visualization approach to resolve complex geological problems at the microscale

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Muhammad Sayab, Senior Researcher

Much of our knowledge about the Earth’s crust and mantle geodynamics is based on the study of mineral species and associated textures. Crystal abundances, chemistry, sizes, shapes, and spatial orientations represent the specific paragenesis of magmas during transport in the crust, whereas metamorphic minerals are key to investigating the mountain-building orogenic process. The vast majority […]

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10/26/2016

Science Blog: The secrets lake sediments have to share: Urbanization caused of low oxygen conditions in European lakes

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Antti Ojala, Senior Scientist

A new study shows that hypoxia, i.e. low oxygen conditions, in European lakes started in 1850, becoming more widespread after 1900, long before the use of chemical fertilizers and climate change. A Canadian and European research team has identified urban expansion as the reason for the low amounts of bioavailable oxygen in numerous European lakes […]

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09/23/2016

Factors Controlling the Migration of Tailings-Derived Arsenic: A Case Study at the Yara Siilinjärvi Site

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Kaisa Turunen, Planner

Arsenic (As) is a ubiquitous metalloid that is found in low concentrations in the atmosphere, in aquatic environments, in soils and sediments, and in organisms. Its presence in the environment can be due to natural processes, such as weathering, biological, and volcanic activity, or anthropogenic activities such as mining. As is problematic because of its […]

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