NGU conducted an airborne geophysical survey in Hemnes and Hattfjelldal municipalities, as part of NGU’s general airborne mapping program. The data acquisition in the Okstindan area was started and completed in August 2021. This report describes and documents the acquisition, processing and visualization of the acquired datasets and presents them in maps.

En detalj er en del av et hele. I årsmeldingen «I detalj», forteller vi om små og store enkeltheter ved Norges geologiske undersøkelse (NGU) i 2021.

Denne rapporten gir en oversikt over in-situ verdien av statens mineraler i Norge. Statens mineraler er metallene med egenvekt 5 g/cm3 eller høyere pluss svovel, titan og arsen. I tillegg er scandium og beryllium inkludert. For noen forekomster er fosfor en viktig bi-komponent og er derfor inkludert der vi har tilgjengelig informasjon. In-situ verdi er definert som verdien i bakken, det vil si verdien før alle produksjonskostnader er trukket fra.

This report describes and documents the acquisition, processing and visualization of the acquired datasets and presents them in maps. The geophysical survey consists of 8500 line-km data, covering an area of 1700 km2, with 4600 km (920 km2) flown in June from Stiklestad, Verdal, and 3900 km (780 km2) flown in August from the base in Gaulstad in Ogndalen. NGU’s modified Geotech Ltd.

In the frame of the GREENPEG project NGU and terratec Geophysical Services have compiled a petrophysical database of European pegmatite ores and wall rocks from so far four different sites with different types of pegmatites in different settings. With the aim to develop toolsets for hidden pegmatite exploration, the GREENPEG project wants to overcome the lack of exploration technologies for pegmatite ore deposits.

Stiksmoen is located on a west-facing slope at approximately 120 m a.s.l. in the southern end of Aurlandfjord (Flåm municipality, Vestland county). The unstable rock slope is bounded by a well-developed backscarp, wide open in the north and open but less developed in the southern sector. The lower limit is mapped close to the foot of the frontal cliff of the unstable rock mass.

NGU conducted an airborne geophysical survey in the Selbu, Tydal and Haltdalen area from May to October 2019. This report describes and documents the acquisition, processing, and visualization of the recorded datasets, presented in maps including Røros area data. The geophysical survey results consist of approximately 13000 line-km, covering an area of 2600 km2.

Geology and structural evolution of the Precambrian rocks of the Oslofjord - Øyeren area, Southeast Norway.Ole Graversen Page(s): 1-50 + ka

Regional geophysics of the Central Norwegian Caledonides.Fredrik Chr. Wolff Page(s): 1-27Determination of density of rocks: a comparison of various methods of calculation.Fredrik Chr. Wolff

Titanium ores: An introduction to a review of titaniferous magnetite, ilmenite and rutile deposits in NorwayAre Korneliussen, H.P. Geis, E. Gierth, H. Krause, B. Robins, W. Schott Page(s): 7-23

Landsat TM-data used in the mapping of large-scale structures in coastal areas of Trøndelag, Central NorwayBjørn I. Rindstad, Arne Grønlie Page(s): 1-12

Tectonostratigraphy and tectonic evolution of the Skånland area, North Norway.Mark G. Steltenpohl Page(s): 1-19

Quaternary geology of Jæren and adjacent areas, southwestern Norway Bjørn G. Andersen, Ole P. Wangen, Svein R. Østmo Page(s): 1-55

Geology and petrochemistry of the Smøla-Hitra Batholith, Central Norway.Håvard Gautneb, David Roberts Page(s): 1-24

Aeromagnetic and gravimetric interpretation of regional structural features in the Caledonides of West Finnmark and North Troms, Northern Norway.Odleiv Olesen, David Roberts, Herbert Henkel, Ole Bernt Lile, Trond H. Torsvik

Geological setting of the Pb-Zn-Cu mineralization in the Mjønesfjell area Nordland, northern NorwayKent Grimm, Henrik Stendal Page(s): 1-11

Groundwater contribution to a mountain stream channel, Hedmark, NorwaySylvi Haldorsen, Jens-Olaf Englund, Per Jørgensen, Lars A. Kirkhusmo, Dag Hongve Side(r): 3-14