Locality
10°50´ east longitude, 63°50´ north latitiude [ map ]
Name
Trondheim, Norway, Europa
Personal relationship of donor
Collection of rocks of economic importance
Historical relevance of location
Building stone with a registered trade name: Gletcherweiss. The rock comes from the Caledonian mountain belt of Norway.
Geological relevance of location
Mountains of folded Lower Paleozoic rocks, including former oceanic crust, the Caledonides, extend from the British Islands to Norway. Quartzite is a major type of rock in these mountains.
Classification of the earth
Structure
|
consolidated rock composed almost wholly of quartz
|
Colour
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light grey
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Age
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Ordovician, 440 - 500 million years
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other
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\\\"Gletscherweiss\\\" quartzite
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Donor
Geoscientific Collections Section of the Federal Institute for Geosciences and Natural Resources,
Geological Survey of Lower Saxony,
Hannover,
Germany