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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