00000nem 2200000za 4500 9.820064 CaOODSP 20251031142446 m go c f cr c|||||||||| 160627s2015 onc||||bh a fo 0 eng|d CaOODSP eng n-cn--- M183-2/7671E-PDF Coyle, Maurice. First vertical derivative of the magnetic field [electronic resource] : aeromagnetic survey of Somerset Island area - parts of NTS 58-B/11, 12, 13 and 14, Nunavut / [by] M. Coyle and D. Oneschuk. Scale 1:100 000 ; Universal Transverse Mercator Projection (NAD83). [Ottawa] : Natural Resources Canada, 2015. 1 map : col. Open file (Geological Survey of Canada) ; 7671 Title from map. Includes bibliographic references. Aeromagnetic surveys measure the total intensity of the earth's magnetic field. The field was measured by a magnetometer aboard an aircraft flown at 150 m altitude in parallel lines spaced at 500 m across the survey area. The magnetic field reflects magnetic properties of bedrock and provides qualitative and quantitative information used in geological mapping. Understanding the geology will help geologists map the area, assist mineral/hydrocarbon exploration activities, and provide useful information necessary for communities, aboriginal associations, and government to make land use decisions. This survey was flown to improve our knowledge of the area. It will support ongoing geological mapping and resource assessment. gccst Geophysics gccst Maps Oneschuk, Douglas. Canada. Natural Resources Canada. EON Geosciences Inc. Geological Survey of Canada. Open file (Geological Survey of Canada) 7671. (CaOODSP)9.832719 PDF 7.19 MB https://publications.gc.ca/collections/collection_2016/rncan-nrcan/M183-2-7671-eng.pdf Map doi:10.4095/295713