Browsing NGU Open Archive by Author "Ofstad, Frode"
Now showing items 1-20 of 59
-
A comparison of transportable and fixed calibration pads for airborne gamma-ray spectrometers
Watson, Robin.J.; Baranwal, Vikas.C.; Ofstad, Frode; Dumais, Marie-Andrée (NGU-Rapport (2024.016), Report, 2024)NGU owns and uses a set of transportable concrete calibration pads for calibration of its airborne gamma-ray spectrometers. The pads are principally designed for hand-held instruments, in contrast with larger fixed pads ... -
Compilation of magnetic and radiometric data measured from helicopter in the Troms – Northern Nordland area.
Stampolidis, Alexandros; Ofstad, Frode (NGU-Rapport (2015.022), Report, 2015)NGU conducted airborne magnetic and radiometric surveys at the area of Troms and Northern Nordland between June 2011 and October 2014 as a part of the MINN project (Mineral resources in North Norway). The data from those ... -
Geofysiske bakkemålinger og boringer på Fensfeltet, Nome kommune, Vestfold og Telemark fylke. Løsmassemektighet og bergkvalitet.
Larsen, Bjørn Eskil; Rønning, Jan Steinar; Ofstad, Frode; Tønnesen, Jan Fr.; Dahlgren, Sven; Viken, Geir (NGU-Rapport (2020.014), Report, 2020)For å vurdere grunnforholdene forut for boring av to 1000 m dype kjerneborehull på Fen, har NGU i perioden 2015 - 2018 utført seismikk- og resistivitetsmålinger innenfor Fensfeltet. Som et ledd i den detaljerte ... -
Geophysical investigations of graphite occurrences in Bø and Øksnes municipalities, Vesterålen, Nordland County, Northern Norway 2015-2016
Elvebakk, Harald; Knezevic, Janja; Rønning, Jan S.; Ofstad, Frode; Gautneb, Håvard; Larsen, Bjørn E. (NGU-Rapport (2017.014), Report, 2017)Geological and geophysical investigations in Vesterålen were carried out during 2015 and 2016 with additional funds from the Nordland County Administration. A first report (Gautneb, et al., 2017) emphasizes the geological ... -
Grunnundersøkelser ved Raudsand, Nesset kommune i Møre og Romsdal. Resultater fra helikoptermålinger og forslag til videre undersøkelser
Baranwal, V.C.; Ofstad, Frode; Rønning, J.S. (NGU-Rapport (2016.043), Report, 2016)På oppdrag fra Bergmesteren Raudsand as har NGU utført magnetiske, elektromagnetiske og radiometriske målinger fra helikopter vest for Raudsand i et område hvor det kan være aktuelt å etablere nasjonalt deponi for uorganisk ... -
Helicopter-borne magnetic and radiometric gaophysical survey in Kviteseid area, Telemark, Norway
Ofstad, Frode; Baranwal, Vikas C.; Rodionov, Alexei (NGU-Rapport (2012.043), Report, 2012)In cooperation with the geologist for Buskerud, Telemark and Vestfold, the NGU conducted an airborne geophysical survey in Kviteseid area in May 2012. This report describes and documents the acquisition, processing and ... -
Helicopter-borne magnetic and radiometric geophysical survey at Austvågøya, Hinnøya, Tjeldøya and Hadseløya areas in Troms and Nordland counties
Stampolidis, Alexandros; Ofstad, Frode; Baranwal, Vikas (NGU-Rapport (2014.007), Report, 2014)NGU conducted an airborne magnetic and radiometric survey over the Austvågøya, Hinnøya, Tjeldøya and Hadseløya islands in Troms and Nordland counties between July-August 2013 as part of the MINN project (Mineral resources ... -
Helicopter-borne magnetic and radiometric geophysical survey at Drangedal, Telemark County
Stampolidis, Alexandros; Ofstad, Frode (NGU-Rapport (2014.044), Report, 2015)NGU conducted an airborne magnetic and radiometric survey at Drangedal in Telemark county between May-June 2014 as part of the MINS project (Mineral resources in South Norway). This report describes and documents the ... -
Helicopter-borne magnetic and radiometric geophysical survey at Gratangen and Sørreisa,Troms county
Stampolidis, Alexandros; Ofstad, Frode (NGU-Rapport (2015.011), Report, 2015)NGU conducted an airborne magnetic and radiometric survey at Gratangen and Sørreisa in Troms county between August-October 2014 as a part of the MINN project (Mineral resources in North Norway). The survey also covered the ... -
Helicopter-borne magnetic and radiometric geophysical survey at Kviteseid, Nissedal, Fyresdal and Dalen, Telemark county
Ofstad, Frode; Stampolidis, Alexandros (NGU-Rapport (2015.040), Report, 2016)NGU conducted an airborne magnetic and radiometric survey at Kviteseid, Nissedal, Fyresdal and Dalen, Telemark county in June 2015 as a part of the MINS project (Mineral resources in Southern Norway). This report describes ... -
Helicopter-borne magnetic and radiometric geophysical survey in Dividalen, Målselv municipality, Troms county
Ofstad, Frode (NGU-Rapport (2015.003), Report, 2015)NGU conducted an airborne magnetic and radiometric survey in the Dividalen area in September 2013 and October 2014 as a part of the MINN project (Mineral resources in Northern Norway).This report described and documents ... -
Helicopter-borne magnetic and radiometric geophysical survey in Kinsarvik area, Ullensvang municipality, Hordaland
Ofstad, Frode (NGU-Rapport (2015.056), Report, 2016)NGU conducted an airborne magnetic and radiometric survey in Kinsarvik area in July and August 2015. The primary purpose of the survey was to see if there is uranium bearing bedrock in and next to Kinsarvik where there are ... -
Helicopter-borne magnetic and radiometric geophysical survey in Otta and Vågå area, Sel and Vågå municipalities, Oppland
Ofstad, Frode (NGU-Rapport (2015.058), Report, 2016)NGU conducted an airborne magnetic and radiometric survey in Otta and Vågå area in uly and October 2015, as a part of the MINS program.This report describes and documents the acquisition, processing and visualization of ... -
Helicopter-borne magnetic and radiometric geophysical survey in Romsdalsfjorden, Møre og Romsdal
Ofstad, Frode (NGU-Rapport (2015.015), Report, 2015)NGU conducted an airborne magnetic and radiometric survey in Romsdalsfjorden in December 2014 and January 2015 on behalf of Statens Vegvesen.This report describes and documents the acquisition, processing and visualization ... -
Helicopter-borne magnetic and radiometric geophysical survey in the Altevann area, Bardu and Målselv municipalities, Troms
Ofstad, Frode; Stampolidis, Alexandros (NGU-Rapport (2014.009), Report, 2014)NGU conducted an airborne magnetic and radiometric survey in the Altevann area in September-October 2013 as part of the MINN project (Mineral resources in Northern Norway).This report describes and documents the acquisition, ... -
Helicopter-borne magnetic and radiometric geophysical survey in the Kviteseid-Notodden-Ulefoss area, Telemark County
Stampolidis, Alexandros; Ofstad, Frode; Baranwal, Vikas (NGU-Rapport (2013.049), Report, 2014)NGU conducted an airborne magnetic and radiometric survey over the Kviteseid, Notodden and Ulefoss area in Telemark county in June 2013 as part of the MINS project (Mineral resources in South Norway). At a second phase of ... -
Helicopter-borne magnetic and radiometric geophysical survey in Øvre Dividalen area, Målselv municipality, Troms
Ofstad, Frode (NGU-Rapport (2015.071), Report, 2016)NGU conducted an airborne magnetic and radiometric survey in Øvre Dividalen area in August, September and October 2015, as a part of the MINN program. This report describes and documents the acquisition, processing and ... -
Helicopter-borne magnetic and radiometric geophysical surveys in Kvinesdal and Sirdal
Ofstad, Frode (NGU-Rapport (2015.007), Report, 2015)NGU conducted an airborne magnetic and radiometric survey in Kvinesdal and Sirdal area in October to November 2013, July and October to November 2014 as part of the MINS program (Mineral resources in Southern Norway).This ... -
Helicopter-borne magnetic, electro-magnetic and radiometric geophysical survey in Byglandsfjorden area, Agder County
Ofstad, Frode; Kristiansen, Tom; Tassis, Georgios; Dumais, Marie-Andrée (NGU-Rapport (2022.014), Report, 2022)NGU conducted an airborne geophysical survey in Byglandsfjorden area, in Bygland, Åseral og Åmli municipalities in Agder County, as part of NGU’s general airborne mapping program. The data acquisition in Byglandsfjorden ... -
Helicopter-borne magnetic, electro-magnetic and radiometric geophysical survey in Mjøsa
Mrope, Frida Mathayo; Dumais, Marie-Andree; Ofstad, Frode; Wang, Ying (NGU-Rapport (2021.019), Report, 2021)NGU conducted an airborne geophysical survey in Mjøsa, Innlandet county as part of NGU\u2019s general airborne mapping program in 2020. This report describes and documents the acquisition, processing and visualization of ...