| Summary of dataset content: | For the purpose of making bedrock maps, usually grab samples taken with a rock hammer from surface of the outcrop. Samples are taken from the rock types typical for the area and from special rocks that require further examination.
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| Original application: | Determination of rock type that also uses support from other methods such as, for instance, microscopic examination (thin sections) and chemical analyses (from powders).
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| Geographical information product related to the dataset: | Bedrock survey 1:100 000 dataset
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| Analysis information for the dataset: | An observation form is usually available for the sampling site that can be found from the terminal archive. Thin (light-permeable) microsection preparations have often been made from the samples for studying mineralogical composition, and chemical analyses often conducted.
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| Volume: | 191,000
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| Resolution (sample density): | Irregular
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| Geographic coverage: | National
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| Sampling years (time reference): | Ongoing since the 1940s?
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| Physical form and storage conditions for the samples: | Rock samples (grab samples) packed in plastic or wooden crates
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| Sample identification: | Sample number (geological code-year-sequential number)
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| Resource address: | |
| Location of the dataset: | Drill Core Archive in Loppi, partly also in Rovaniemi and Kuopio
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| Keywords: | geology, bedrock, mapping, samples
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| Historical information: | http://tupa.gtk.fi/paikkatieto/meta/kalliopera_100k.html |
| Availability and terms of use / Public availability restrictions: | According to the agreement.
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| Responsible organization: | Geological Survey of Finland, geodata_gtk.fi
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| Metadata date: | 2015-06-08
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