Blar i Artikler på emneord "PREKAMBRIUM"
Viser treff 21-40 av 125
-
Dome-bassin strukturer i grundfjeldet mellem Kolbotn og Bunnefjorden, Akershus.
(NGU (304), Journal article, 1974)Dome and basin structures in Precambrian gneisses east of the Oslo fjord have been mapped. A short description is given of the rock types and the main structure, the Gjersjø dome. The axial-plane of the youngest folding ... -
Early Proterozoic (c 2000-1900 Ma) crustal structure of the northeastern Baltic Shield: tectonic division and tectogenesis.
(NGU Bulletin (403), Journal article, 1985)Recent structural investigations in the Precambrian of northern Finnish Lapland and Norwegian Sørvaranger and their extrapolation into the neighbouring Kola Peninsula have stablished that the northeastern part of the Baltic ... -
Early Proterozoic shallow-marine albite-rich sandstone in the Karasjok Greenstone Belt, Norway.
(NGU Bulletin (403), Journal article, 1985)A remarkably little-deformed sandstone in a roadcut near Karasjok showssedimentary structures characteristic of a subaerially exposed tidalenvironment. The fining upward sequence displays flaser bedding, parallellamination, ... -
Economic potential of potassic feldpar-rich gneisses in Tysfjord/ Hamarøy, northern Norway
(NGU Bulletin (436), Journal article, 2000)Potassic feldspar gneiss in the Tysfjord\/Hamarøy area may be potential resource for future exploitation. The rock consists primarily of microcline (up to 84%) and quartz (up to 35%) together with small amounts of plagioclase ... -
Egersund. Fjeldbygningen inden rektangelkartet Egersunds omraade
(NGU (71), Journal article, 1914)Forkortet: The principal part of the rocky underground consists of labradorite-rocks, as may be seen on the map. These are not homogeneous all over the area neither with regard to the mineralogical composition, nor regarding ... -
Eocambrian rocks on the north-west border of the Trondheim basin.
(NGU (251), Journal article, 1967)Three occurrences of Eocambrian rocks on the north and west borders of the Trondhim basin are compared, namely in the Gangåsvatn, Opdal and Tømmerås areas. It is shown that the sequence in the Gangåsvann area consists of ... -
Epigenetisk koppermineralisering på Finnmarksvidda.
(NGU (203), Journal article, 1958)In the Precambrian rocks of Finnmarksvidda, one big copper deposit, Biddjovagge, and a series of small sulphide occurrences are located. The sulphides are pyrite, chalkopyrite and phyrrhotite, in some places also bornite ... -
Et forøk paa inddeling av det syd-norske grundfjeld
(NGU (95), Journal article, 1922)In the present paper a new subdivision of the precambrian formations of southern Norway is attempted. The older views of the Swedish and Norwegian geologists are first summarised. -
Et gneis-amfibolitt-kompleks i grunnfjellet i Valdres. Summary: A complex of gneisses and amphibolites in the archaean of Valdres, Southern Norway.
(NGU (159), Journal article, 1943)The present paper deals with Archean rocks in the map areas Aurdal and Slidre (see outline map Fig. 1). In Fig. 1 areas covered by Caledonian rocks are left white, (1)=mylonitic gneisses of granitic derivation, (2)=various ... -
Evolution structurale de la region Nisser - Vråvatn (Norvege meredionale). (The precambrian rocks of the Telemark area in south central Norway no. VIII. Strucutral development of the Nisser-Vråvatn region.)
(NGU (266), Journal article, 1970)Tectonic and petrographic studies of the Precambrian rocks in the Nisser-Vråvatn region of Telemark have led to the recognition of the following principal features: (1) The basement of the \"Telemark suite\" does not appear ... -
Forekomster av tillitt på nordsiden av Atnsjøvinduet, Syd-Norge.
(NGU (373), Journal article, 1982)A previously reported tillite-like conglomerate occurring on the northern side of the Atnsjø Window rests with an erosional contact on Precambrian granite and gabbro and is overthrust by fieldspathic metasandstones of the ... -
Foreløpige meddelelser fra kartbladet Verdal.
(NGU (211), Journal article, 1960)A preliminary report on the Verdal map area: The Verdal amp area, a part of the Trondhjem region, has been investigated. The present paper is a preliminary report. The investigation shows the following stratigraphical ... -
Fossils from pebbles in the Biskopåsen Formation in Southern Norway.
(NGU (251), Journal article, 1967)Fossils are reported from pebbles in the lowest part of the Biskopåsen Conglomerate in the Late Precambrian Lillehammer Subgroup at the norhtern end of lake Mjøsa in Southern Norway. The most common and widespread fossils ... -
From Archaean to Proterozoic on Hardangervidda, south Norway
(NGU Bulletin (433), Journal article, 1997) -
Geologic and structural studies around two geophysical anomalies in Troms, Northern Norway.
(NGU (247), Journal article, 1967)The geology and structures of two windows (the Mauken and the Divielva windows, see fig. 1) are outlined. For the Precambrian supracrustal rocks of the Mauken window, two formations names and one group name are suggested. ... -
Geological and petrographical investigations in the Kongsberg-Bamble formation.
(NGU (160), Journal article, 1943)The rocks of the Kongsberg-Bamble Formation are Pre-Cambrian and belong to the deeper parts of an ancient mountain range (the Sveco-Fennides). The main geological features appear from Table 11. In comparison with the ... -
Geological investigations in the Byglandsfjorden-Gyvatn area. (The Precambrian rocks of the Telemark area in South Central Norway no. IX).
(NGU (266), Journal article, 1970)The area consists of Precambrian migmatic gneisses in which a group of banded gneisses (migmatic gneisses, sensu stricto) and a group of granite gneisses have been distinguished. Two stages of folding are readily distinguished, ... -
Geological reconnaissance of the area between Kristiansand and Lillesand.
(NGU (205), Journal article, 1959)Randesund-området, et felt på ca. 400 km\u00B2, ligger mellom Lillesand og Kristiansand, dels i Aust-Agder, dels i Vest-Agder fylke. Innen området er det utført petrografisk-tektoniske undersøkelser for Norges Geologiske ... -
Geological studies in the region of Vegarshei - Gjerstad.
(NGU (215), Journal article, 1962) -
Geologien på søndre del av kartblad Essandsjø.
(NGU (205), Journal article, 1959)The field observations were made during 1955 and 1956. The most important types of rocks are as follows. Near the SE corner of the map there is granite surrounded by quartz porphyry. This is overlain by another porphyry, ...