Blar i NGU Open Archive på forfatter "Smethurst, Mark A."
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A mobile gamma ray spectrometer system for nuclear hazard mapping
Smethurst, Mark A. (NGU-Rapport (2000.088), Report, 2000)The Geological Survey of Norway has developed a system for mobile gamma ray\rspectrometer surveying suitable for use in nuclear emergencies where\rpotentially dangerous radioactive materials have been released into ... -
Airborne mapping of radioactive contamination. Results from a test in Finland, RESUME95
Rønning, Stig; Smethurst, Mark A. (NGU-Rapport (96.054), Report, 1996)The Geological Survey of Norway participated in the exercise RESUME95 (Rapid Environmental Surveying Using Mobile Equipment 95) in Finland, during August 1995. The purpose of the exercise was to (1) test preparedness in ... -
GMAP v.32: Geographic mapping and palaeoreconstruction package
Torsvik, Trond; Smethurst, Mark A. (NGU-Rapport (98.002), Report, 1998)GMAP is a state of the art computer which performs all processing and plotting tasks usually associated with the storage and presentation of palaeomagnetic pole positions, and generation of palaeographic reconstructions. ... -
Interpretation of the Ra 3 potential field data along the Lofoten-Vøring continental margin, part 2.
Ebbing, Jörg; Skilbrei, Jan Reidar; Olesen, Odleiv; Torsvik, Trond H.; Smethurst, Mark A.; Lundin, Erik (NGU-Rapport (2004.027), Report, 2004)Aeromagnetic data from the Røst Basin (RAS-03) were acquired in 2003 and merged with 12 neighbouring datasets. A compilation of the existing gravity data in the area has also been carried out. Forward 3D modelling along ... -
Kartlegging av thorium, uran og kalium fra helikopter ved Ulefoss, Nome kommune
Heincke, Bjørn H.; Smethurst, Mark A.; Rønning, Jan S.; Mogaard, John O. (NGU-Rapport (2007.021), Report, 2007)Radiometriske helikoptermålinger er utført ved Ulefoss i Nome kommune. Målingene dekker et område på omtrent 20 kvadratkilometer som omfatter det vulkansk pregede Fensfeltet. Resultatene fra tidligere feltmålinger og ... -
NAS-94 Interpretation Report Part III: Combined interpretation of aeromagnetic and gravity data
Olesen, Odleiv; Smethurst, Mark A. (NGU-Rapport (95.040), Report, 1994)A combined interpretation of new aeromagnetic data (NAS- 4), existing offshore and onland gravity and new petrophysical data between 64\u00B030' and 68\u00B0N is repor- ted. Data from the Nordland Aeromagnetic Survey ... -
Rapid environmental surveying using mobile gamma ray spectrometry:processing of results from the RESUME99 exercise, Gävle, Sweden
Smethurst, Mark A. (NGU-Rapport (2000.087), Report, 2000)Data from mobile measuring teams participating in the RESUME-99 Fixed Route excercise in Sweden have been processed to facilitate a detailed comparison between the data sets. The exercise was organised by the Swedish ... -
Reducing noise in radiometric multi-channel data using noise-adjusted singular value decomposition (NASVD) and maximum noise fraction (MNF)
Mauring, Eirik; Smethurst, Mark A. (NGU-Rapport (2005.014), Report, 2005)The airborne gamma-ray spectrometric method is primarily used for the detection of ore bodies, fallout from nuclear accidents and as a lithological mapping tool. Modern gamma-ray spectrometers can record at least 256 ... -
Searching for hidden radioactive sources in the Barents Rescue 2001 nuclear emergency exercise
Smethurst, Mark A.; Kihle, Ola; Koziel, Janusz; Mauring, Eirik; Mogaard, John O. (NGU-Rapport (2001.106), Report, 2001)The international nuclear emergency exercise Barents Rescue took place in the vicinity of Boden in Northern Sweden between the 12th and 20th of September 2001. The Gamma Search Cell part of the exercise was designed to ... -
The distribution of radioactive fall-out Nord-Trøndelag from detailed airborne and ground-gamma ray spectrometer surveying
Smethurst, Mark A.; de Caritat, Patrice; Walker, Peter; MacNiocaill, Conall; Gaare, Eldar (NGU Bulletin (427), Journal article, 1995) -
Tolkning av helikoptergeofysikk fra kartbladene Grong og Andorsjøen, med hovedvekt på mineralprospektering
Smethurst, Mark A.; Skilbrei, Jan Reidar (NGU-Rapport (92.265), Report, 1992)Geofysiske data innsamlet fra helikopter over kartbladene Grong og Andor- sjøen er tolket. Tolkning av elektromagnetiske data har påvist flere interessante EM-anomalier, som representerer gode elektriske ledere i berg- ...