Blar i NGU Open Archive på forfatter "Friis, Jacob P."
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Andøens kulfeldt
Friis, Jacob P. (NGU (36), Journal article, 1902)Forkortet: The Andøy Coal field lies on the Eastern side of the isle of Andøy in Northern Norway (70\u00B0N). A sketch map of the northern part of this isle is found on p.28, where the coal-field is shaded. The diagram om ... -
Feldspat, kvarts og glimmer, deres forekomst og anvendelse i industrien
Friis, Jacob P. (NGU (1), Journal article, 1891)Forkortet: The above minerals are extracted from very coarse grained granitic veins - pegmatite - in the Archaean of the Southern Norway. The author describes several quarries between the cities of Arendal and Tvedestrand. ... -
Geologisk kartskisse over trakterne omkring Velfjorden med beskrivelse. Marmorforekomster
Friis, Jacob P. (NGU (34), Journal article, 1901)Forkortet: At Heggefjord, a branch of Velfjorden, marble was formerly quarried, but the work is now suspended. Director J.P.Friis, on pages 30 to 40, has described several localities in this region, containing marble of ... -
Terrænundersøgelser og jordboringer i Stjørdalen, Værdalen og Guldalen samt i Trondhjem i 1894, 95 og 96
Friis, Jacob P. (NGU (27), Journal article, 1898)Forkortet: The Norwegian valleys filled up at a large extent by gravel, sand and clay in the course of time been submitted to earthslips and sinking of the grounds, however more especially those of Gauldalen, Stjørdalen ... -
Utvinding af feldspat og glimmer i Smaalenene
Friis, Jacob P. (NGU (14), Journal article, 1894)Smaalenenes is the region to the East of the Kristianiafjord. The minerals are extracted from very coarse grained granitic veins - pegmatite - in the Archæan. Orud mine (33 metres deep and 66 metres long) is probably the ...