16 resultater
Med basis i eksisterende kvartærgeologiske kartdata i målestokk 1:20.000 , 1:50.000, 1:250.000 og 1:1 mill er det gjennomført en første beskrivelse av de kvartærgeologiske/geologiske forholdene i det utvalget av vassdrag som ble sendt NGU 02.02.02. Rapportbeskrivelsene er satt opp etter en felles mal (kriterier). denne legges til grunn for gjennomgåelsen av det enkelte vassdragsobjektet. Det foreliggende datagrunnlaget bygger på informasjonen som refereres til kart i ulike målestokker.
A new potential extraction area for hard rock aggregates around Såt, near the existing quarry in Espevik has been mapped geologically. The main focus has been geological mapping and interpretation combined with sampling of the different rock types for mechanical testing and microscopical analyses. The geology in Såt prospect is complex. The dominating rock type is porphyritic biotite gneiss-granite which occur in the north-eastern half of the prospect.
Geological mapping of a planned extraction area for hard-rock aggregates has been carried out at Seljestokken, Flora municipality, for Hertig Natursteine AG. A number of hand-specimens of the bedrock were collected and thin-sections were subsequently examined under the microscope. The bedrock of the area consists of fine-granied, Devonian sandstone with a few, thin beds of siltstone. The thin-sections show that the grain size usually ranges between 0.4 and 0.05 for most of the rocks.
The GESTCO (GEological STorage of CO2) from fossil fuel combustion project comprises a study of the distribution and coincidence of thermal CO2 emission sources and location/quality of geological storage capacity in Europe. The GESTCO project is a joint research project conducted by 8 national geological surveys and several industry partners/end users, partly funded by the European Union 5th Framework Programme for Research and Developmen.
The Geological Survey of Norway is in the process of making an inventory of hard rock aggregate deposits in coastal Norway. This report contains a catalogue of Norwegian coastal quarries presently in production and potential production areas along the coast of southern Norway. 9.8 million tons of aggregates were exported to Europe in 2001 and ca. 2 milkion tons were used in the offshore industry (continental shelf).
This reports presents an evaluation of potential drilling targets within the Björkdal Mine. The selection of these drilling targets is based on the conceptual structural geological model which re-interprets the geometry of the mineralised body to consist of 5 sheets of mineralised granodiorite juxtaposed across thrusts planes which have considerable displacement.
Geological mapping of the planned extraction area for hard-rock aggregates named Gulestø in Bremanger, has earlier been carried out at for EUROVIA. The bedrock of the area consists of fine-granined, Devonian sandstone with thin beds of siltstone/claystone. Six samples for mechanical testing were collected in the second phase of the investigation. The results of the testing show very little variation in the mechanical strength.
In co-operation with Amrock JV AS, the Geological Survey of Norway (NGU) mapped in September 2001 the geology of a new potential extraction area for hard rock aggregates around Såt. The results were presented in NGU Report 2002.007. A drilling program was accried out in December 2001 - january 2002 in order of estimate the deep structure and volume of the different rock qualities in the Såt prospect.
In june 2002, a helicpter geophysical survey was carried out over two areas at Valle, Setesdalen. The areas are named Rotemo and Rysstad-Straumfjord. The purpose of the surveys was to provide geophysical information for mineral exploration. The data were collected and processed by the Geological Survey of Norway (NGU).
In July 2002, a helicopter geophysical survey was carried out over Ringvassøy, Troms county. The purpose of the surveys was to provide geophysical information for mineral exploration. The data were collected and processed by Geological Survey of Norway (NGU). A total of about 1589 line-km of electromagnetic (EM), very low frequency EM (VLF), radiometric, and magnetic data were acquired using a nominal 200-m line spacing.
The Bamble Sector (Arendal-Bamble region) of the Fennoscandian Shield in S. Norway is affected by metasomatic processes related to large-scale fluid migration during Sveconorwegian (Grenvillian) tectonothermal events. In some areas such as at Ødegårdens verk, pervasive fluid infiltration has transformed gabbroic amphibolites into a characteristic scapolite-hornblende rock (ødegårdite).
The report provides an evaluation of the hazard related to Skår/Baraldsnes area in accordance with a contract with Hydro Technology and Projects. Geological and historical data on rock-avalanche events demonstrate that the high-risk areas are concentrated to the inner part of deep fjords of western Norway. The studied locations, Baraldsneset, Oppstadhornet and Hellenakken, are situated outside the high-risk areas.
The Geological Survey of Norway has taken over 252 Norwegian Petroleum Directorate (NPD) gravity cores. This report is a compilation of different activities within the project.
Det ble sommeren 2002 gjennomført undersøkelser av ultramafittene i Storbekken-området i Lierne. Utgangspunktet var de økonomisk geologiske arbeidene som tidligere er gjort i samarbeid mellom Statskog og NGU. Hensikten med arbeidene var å kartlegge mulig utnyttbare forekomster av kleber først og fremst til naturstein i tilknytning til ultramafittene i Storbekken-området.
The present report aims on graviational slope failures in Møre & Romsdal andSogn & Fjordane counties. It presents selected examples and an overview of theregional occurrence of rock avalanches and other bedrock failures.