Blar i NGU Open Archive på emneord "FOLDNING"
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Om Grongkulminasjonen og Grongfeltets skyvedekker.
(NGU (195), Journal article, 1956)On the Grong culmination and the thrust nappes of the Grong area: This paper presents of the major tectonic features of a central part of the Caledonides of Norway, based upon the very detailed and exact geological manuscript ... -
On kink-zone development and metamorphic differentiation in the low-grade schists of Norwegian Sulitjelma.
(NGU (247), Journal article, 1967)The common minor scale kink-zones of upper levels of the Furulund schists of eastern Norwegian Sulitjelma generally do not occur in conjugate pairs: usually only the member with northwest dipping axial plane is developed ... -
Rapport fra berggrunnskartlegging i Gjevingåsen for Nord-Trøndelag vegkontor
(NGU-Rapport (85.217), Report, 1985)Rapporten omfatter resultater fra berggrunnskartlegging av området mellom Hommelvik og Hell. Bergartene er beskrevet ut fra feltobservasjoner uten hensyn til den stratigrafiske gruppeinndelingen i Trondheimsfeltet, men med ... -
Recent observations on the southern shore of Skjervøy and the opposite coast of Kågen.
(NGU (255), Journal article, 1968) -
Refleksjoner over betydningen av høye punkt-temperaturer på overflater i forbindelse med bevegelser i bergarter.
(NGU (211), Journal article, 1960)This experiments verifying the existence of hot spots on the surface of sliding solids (Bowden and Thomas, 1954) are mentioned, along with suggestions as to how much hot spots could be caused on the surface of minerals in ... -
Structural interpretation of a double-folded gneiss-amphibolite sequence, Bunnefjorden, Akershus.
(NGU (300), Journal article, 1973)Garnet amphibolite bands folded together with gneiss lamellae in tight to isoclina folds are described. A structural analysis shows that the folds were formed during two separate deformation episodes. This conclusion has ... -
Structural observations from the Kopperå-Riksgrense area and discussi- on of the tectonics of Stjørdalen and the N.E. Trondheim region.
(NGU (245), Journal article, 1967)Minor tectonic structures occurring in weakly metamorphosed Hovin and Horg Group sediments along Tevedalen, east of Meråker, are described in the first part of the paper. Three episodes of folding are recognized, the ... -
Tectonic features of an area N.E. of Hegra, Nord-Trøndelag, and their regional significance - preliminary notes.
(NGU (255), Journal article, 1968)Following brief notes on the low-grade metasediments occuring in the area near Hegra, 50 km east of Trondheim, the types of structures associated with three episodes of deformation of main Caledonian (Silurian) age are ... -
Tectonometamorphic development of Devonian rocks of western Solund, and regional implications.
(NGU-Rapport (99.033), Report, 1999)Many modern accounts of Devonian rocks of western Norway, which emphasise the extensional phenomena affecting them, tend to ignore or gloss over the deformation and metamorphism which these rocks have suffered during ... -
Tectonostratigraphic succession and development of the Finnmarkian nappe sequence, North Norway.
(NGU (343), Journal article, 1978)Detailed investigations of the Finnmarkian nappe sequence within the 1:250 000 map-sheets \"Hammerfest\", \"Nordreisa\" and \"Honningsvåg\" have revealed a complex construction of discrete nappes, sub-nappes and minor ... -
The Caledonian mountain chain of the Southern Troms and Ofoten areas. Part III. Structures and structural history.
(NGU (283), Journal article, 1972)The main lines of the structural geology of the area of about 13,000 km\u00B2 in the Caledonian mountain chain of Northern Norway are described. The major structure is characterized by nappes with a thrust front in the ... -
The early major structure and petrology of rocks in the Bamble Series, Søndeled-Sandnesfjord, Aust-Agder.
(NGU (327), Journal article, 1976)The geology and major fold structures of part of the Bamble Series are described from an area near Risør, Aust-Agder (some 15 km SW of the Levang paragneiss dome). Major structures are shown to have formed prior to the ... -
The geology of an area north of Gåsbakken, Sør-Trøndelag.
(NGU (247), Journal article, 1967)This paper constitutes a description of the geology of the Lower Ordovician strata outcropping in a 70 sq.km area, north of the village Gåsbakken in Sør-Trøndelag. A review of the stratigraphy is given. Three phases of ... -
The geology of Skjervøy, North Troms, Norway.
(NGU (255), Journal article, 1968)A geological map and section of the island are presented. Despite the lack of sedimentary structures, the meta-sedimentary succession of limestones, overlain by pelite, overlain by a thick series of psammites is thought ... -
The geology of the Løkken area, Sør-Trøndelag.
(NGU (255), Journal article, 1968)The paper describes the rock types and geological structure of the Løkken area, near Trondheim. The area lies on the inverted limb of a nappe structure overturned to the north-west. This structure has been coaxially refolded. ... -
The Precambiran schists and gneisses of Lakselv valley, northern Norway.
(NGU (205), Journal article, 1959)The principal rocks of the Lakselv valley area are well-foliated hornblende schist and mica-quartz schists and lesser amounts of quartzite and marble. The hornblende schist overlies most of the mica-quartz schists and in ... -
The relationship of sedimentation to tectonics in the Solund Devonian District of southwestern Norway.
(NGU (259), Journal article, 1968)The Solund district of southwestern Norway contains a maximum preserved stratigraphic thickness of 5,200 meters of coarse conglomerate with less amounts of intercalated sandstone. The deposits are thought to be Middle ... -
The structural geology of the Saura region, Nordland.
(NGU (264), Journal article, 1970)The structural development is described of the Saura region, occupying part of the internal zone of the Caledonide orogenic belt in Nordland. Two major rock divisions hve been distinguished; a number of gneissic groups, ... -
The structure and regional setting of the Skei Group, Leka, north-central Norway
(NGU Bulletin (426), Journal article, 1994)The unconformity between the metasedimentary Skei Group and subjacent ophiolite on Leka has important implications for the tectonostratigraphy of the region. As a distinctive marker horizon, it permits correlations within ... -
The structure of the Magerøy Nappe, Finnmark, North Norway.
(NGU (363), Journal article, 1981)The Magerøy Nappe was emplaced during the Scandinavian phase of the Caledonian orogeny, of Middle\/Upper Silurian age. Two main episodes of deformation (D1 and D2) with attendant Barrovian-type regional metamorphism are ...