FOCUS NGU FOCUS NO.7 APRIL 2015
PL E A
S
W W W E VISIT FOR M .NGU.NO O RE I N FO
COOP CRUSTAL ONSHORE-OFFSHORE PROJECT (RESEARCH AND MAPPING PROJECT) The Geological Survey of Norway (NGU) has carried out a follow-up on the successful onshore-offshore projects in the Norwegian and Barents Seas. The study areas comprises an area of approx. 120.000 km². The project covers the Froan, Møre, Viking, Stord, Egersund, Norwegian-Danish and Central basins. The project includes acquisition of six airborne surveys. The offshore surveys have a profile spacing of 500 m and 1 km, and a sensor altitude of 100 metres. Three combined aeromagnetic and radiometric surveys along the coast of western Norway have a line spacing of 250 m and a flying altitude of 60 metres. NGU has within the frame of the Coop studies compiled existing aeromagnetic surveys on the mainland and in the North Sea (e.g. VGET-95, VGVG-96, Q17, Viking-93 and SAS-96) and provides a comprehensive and state of the art aeromagnetic grid. High-resolution aeromagnetic surveys are particularly useful for detailed mapping of sand channels, volcanics, igneous bodies, salt diapirs, fault systems, deep weathering and depth to magnetic basement. This information provides a structural overview and is valuable for further survey planning like seismic, gravity and CSEM data acquisition. The products of the projects include a basement characterization as well as full 3D crustal and thermal basement models. The new surveys constitute a part of an aeromagnetic remapping program of the Norwegian continental shelf and coastal areas. Outline of the Coop aeromagnetic surveys in the North Sea (CNAS-10) and along the coast of western Norway (BESTAS-10, SAS-11, TRAS-13 and STAS-13 and CAS-15). Dark blue and green lines show previous NGU and TGS surveys, respectively in the offshore areas.
ORDERING: Price Coop 1/2: 1,92 million NOK Coop 3: 1,68 million NOK
MORE INFORMATION?
ODLEIV OLESEN Team Leader, Continental Shelf Geophysics odleiv.olesen@ngu.no Tel: +47 73 90 44 56