Along the Molpehällorna Nature Trail, several billboards explain nature and geology. Here you find a billboard explaining Striations made by continental ice sheet:
This bedrock consists of mica gneiss. You can also see striations carved by the ice sheet on some rock surfaces, which is evidence of the fact that the ancient glacier flowed at least from the north-west and north. The fact that there are several striation directions shows that the erosion by the glacier was very weak, as otherwise the older striations would have been worn off by the new ones. The factors affecting the creation of the striations and the force of the erosion include, for example, characteristics of the materials migrating at the bottom of the glacier, flow rate, the forms of the land surface and the powerful pressure at the interface of the ice and the rock

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Monday 22 December

1°C

-6°C

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Max wind speed: 25.0 km/h

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Location: Korsnäs, Western Finland, Finland

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