Blar i NGU Open Archive på emneord "PROTEROZOIKUM"
Viser treff 1-15 av 15
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A 40Ar/39Ar dating study of very low-grade metamorphism from the Rybachi and Sredni Peninsulas, NW Russia -a preliminary report
(NGU-Rapport (98.168), Report, 1998) -
A possible basement to the Mesoproterozoic quartzites on Hardangervidda, South-Central Norway: zircon U-Pb geochronology of a migmatitic gneiss
(NGU Bulletin (437), Journal article, 2000)On Hardangrvidda west of the Mandal-Ustaoset fault zone in South Norway, some 80-90% of the crust consists of orthogneisses and foliated and massive granites in this plutonic environment the Mesoproterozoic quartzites of ... -
Bidrag fra geofysiske undersøkelser til geologisk forståelse av kontinent-kontinent kollisjon i de Hudsonske og Svekokarelske orogeneser.
(NGU-Rapport (87.131), Report, 1987)Litteratur om geofysiske unders. av mulige kontinent-kontinent kollisjoner innenfor de Trans-Hudsonske og Svekokarelske orogonene er gjennomgått. Den sør-østre delen av den foreslåtte Trans-Hudson orogonen faller sammen ... -
Building-stone resources in Eritrea: results from introductory work in the NGU-EGS co-operation programme
(NGU Bulletin (436), Journal article, 2000)Several building-stone quarries and prospects in Eritrea were visited during September 1998, as a part of the Norwegian.Eritrean ERINOR co-operation project. The bedrock geology of Eritrea comprises a variety of rocks, of ... -
Depositional environment and apparent age of the Fauske carbonate conglomerate, North Norwegian Caledonides.
(NGU Bulletin (436), Journal article, 2000)The Fauske conglomerate represents a rather rare case of a monomict carbonate conglomerate in the Late Neoproterozoic to Silurian, lithostratigraphic successions of the Norwegian Caledonides. Lithological varieties of this ... -
Gull i vulkansk-sedimentære bergarter, Skjomen-Rombaken
(NGU-Rapport (2008.045), Report, 2008)Paleoproterozoiske (1.8-1.9 mill. år) vulkanske og sedimentære bergarter i Rombak-Skjomen området (Rombakvinduet) har betydelige likhetstrekk med tilsvarende bergarter i Lycksele-Storuman området (Guldlinjen) i Nord-Sverige ... -
Hovedtrekk av berggrunnen på 1:50 000 kartblad 2117 IV Trysil.
(NGU-Rapport (89.126), Report, 1989)Berggrunnen innenfor kartblad Trysil er del av det sørnorske grunnfjell som preges av NV-SØ strykene bergartsbelter. 3 av disse opptrer også på svensk side av grensen. Disse beltene omfatter bergarter fra den midtprekambriske ... -
Planktonic, acid-resistant microfossils from Upper Proterozoic strata of the Barents Sea Region of Varanger Peninsula, East Finnmark, Northern Norway.
(NGU (382), Journal article, 1983)Planktonic, acid-resistent microfossils (acritarchs) occur in the Kongsfjord, Båsnæring and Båtsfjord Formations of the Barents Sea Group and in the Styret Formation of the Løkvikfjell Group. Two new taxa are described and ... -
Rutile in eclogites as a mineral resource in the Sunnfjord Region, Western Norway.
(NGU Bulletin (436), Journal article, 2000)The world's resources of the primary titanium raw materials ilmenite and rutile are very large. However, there is a lack of high-grade, high-quality ilmenite deposits as well as good rutile deposits. Particular focus has ... -
Sedimentology of the Upper Proterozoic glacial record, Vestertana Group, Finnmark, North Norway.
(NGU Bulletin (394), Journal article, 1984)Upper Proterozoic sediments in Finnmark show direct and indirect evidence for glaciation in four stratigraphic units at the base of the Vestertana Group: 1) the Smalfjord Formation, the first glacial episode. 2) the Nyborg ... -
Terminal Proterozoic System. Fieldguide to the workshop in Eastern Finnmark, North Norway, 1-8 August 1994
(NGU-Rapport (94.065), Report, 1994)Ekskursjonsfører med beskrivelse av utvalgte lokaliteter og snitt i Varangerfjorden og Tanafjorden områdene -
The "Better to burn out than to fade away" tour: magma-driven, high-grade metamorphism in the Sveconorwegian Province, SW Norway during the terminal stages of Fennoscandian Shield evolution. NGF/NPF field-trip guide, 11. June 2017
(NGU-Rapport (2017.030), Report, 2017)The exposed rocks in Rogaland, that we will study on this field trip, provide insight into processes in the lower and middle crust of a long-lived, late Mesoproterozoic continental-margin arc, on tens of million year time scales. -
The Caravarri Formation of the Kaukokeino Greenstone Belt, Finnmark, North Norway: a Palaeoproterozoic foreland basin succession.
(NGU Bulletin (442), Journal article, 2004)The Caravarri Formation is the youngest supracrustal unit in the Palaeoproterozoic Kautokeino Greenstone Belt of western Finnmark. This greenstone belt and correlative units at Alta farther north were formerly ascribed to ... -
The geological setting of the Hamn Nickel Deposit, Senja, Troms
(NGU-Rapport (2009.035), Report, 2009)The Hamn gabbro on Senja is an arcuate body extending from Hamn in the N to Gryllefjordbotn in the S, a distance of just under 10 km. Its average width is ca. 2 km. Its age is 1800\u00B13 Ma, based on U-Pb dating of zircon. ... -
The Gjedde Lake gold occurrence in Pasvik
(NGU-Rapport (95.079), Report, 1995)The Gjedde Lake gold occurrence was found in the Pasvik Valley during field work in the summer of 1993. The area is poorly exposed and this hampered the investigation. The gold mineralisation is related to the upper section ...