Airborne Magnetic Survey, Colour-Filled
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Magnetic field strength and map surrounds by the and map surrounds by the survey area was 11.5°W area was the survey Limited, Aurora, Ontario for ey, Banting–Chambers property, ey, ic intensity were generated were ic intensity model year for the mean data model year ing the minimum curvature r Temex Resources Corp., stry of Northern Development stry of Northern Development and agnetic Reference Field (IGRF) entre of the map area was ations. However, the purchased ations. However, The magnetic data were corrected The magnetic data were eter-equipped aircraft and a agnetometer-equipped aircraft. area—Purchased data; Ontario cks, the magnetic declination on data acquisition was neither data acquisition was the gradient-enhanced residual CREDITS ned valuation criteria set out by the OGS. ned valuation criteria set out by 0 MAP 60 417 Purchased Data Scale 1:50 000 DESCRIPTIVE NOTES Ontario Geological Survey NTS References: 31 L/13, 14; M/3, 4 SOURCES OF INFORMATION 1 km enhanced residual magnetic field AIRBORNE MAGNETIC SURVEY Colour-filled contours of the gradient- surveys, magnetic and electromagnetic data, grid and profile surveys, data (ASCII and Geosoft® formats) and vector data, Latchford area—Purchased data; Data Set 1242. Geophysical colour-filled contours of magnetic field, Latchford Map 60 417, scale 1:50 000. Geological Survey, Introduction airborne surveys proprietary compiled from two This map was the Ontario Mini purchased by using a Fugro Midas flown were and Mines. These surveys magnetic horizontal gradiom Geotech helicopter-borne m GPS navigation systems also equipped with The aircraft were and digital data acquisition systems. Residual Magnetic Field Map The contours of residual magnet recorded data. from digitally for diurnal variations, levelled to the control lines and interpolated onto a 15 m regular grid. The VTEM survey gridded us magnetic data were gridded using the Midas data were spline algorithm while gradient enhanced bi-directional gridding. For each survey block, an International Geom applied to the total magnetic field data at correction was altitude using the mean survey applied to level acquisition date. A regional correction was Master Aeromagnetic Grid. the magnetic field to Ontario Using the means for all blo 30, 2006 for the centre of January 73.3° and magnetic inclination was 56 565 nT (calculated using IGRF). was Data acquisition, data compilation by Fugro Airborne Surveys Data acquisition, data compilation by Corp., Mississauga, Ontario fo Geotech Toronto, Ontario and by Amador Gold Corp., Vancouver, British Columbia. CGI Controlled Data reprocessing and map production by Inc., Thornhill, Ontario. Geophysics Contract management, base maps of Northern Development and Mines, Sudbury, Ontario Ministry Ontario. To enable the rapid dissemination of information, this map has possible effort has been not received a technical edit. Every of the information presented; made to ensure the accuracy the Ontario Ministry however, errors that may for any Mines does not assume liability critical information. occur. Users can verify are available from the Corresponding digital data for this survey publication: Ontario Geological Survey following 2013. Ontario airborne geophysical Ontario Geological Survey purchased from the data on this map were The geophysical private sector. The original (OGS) nor carried the Ontario Geological Survey supervised by out to OGS technical specific data do meet a pre-defi control checks have been assurance and quality Some quality carried out on the digital data. Issued 2013. be quoted if credit is given. Information from this publication may form: It is recommended that reference be made in the following 2013. Airborne magnetic survey, Ontario Geological Survey Location map © Queen's Printer for Ontario, 2013. © the permission of Director, This map is published with Ontario Geological Survey. Base map information derived from the Ontario Land Information of Warehouse, Land Information Ontario, Ontario Ministry Natural Resources, scale 1:50 000. Magnetic declination for the c 11°27'W in 2013. approximately E. 2006. Midas high-resolution magnetic geophysical Bowslaugh, for Temex Resources Corp., Cobalt area, Ontario; survey Corp. Fugro Airborne Surveys unpublished report by Orta, M. 2006. Report on a helicopter-borne time domain surv electromagnetic geophysical Temagami, Ontario; unpublished report for Amador Gold Corp. Magnetic depression 1000 nT contour Line number 30 m (Block 2) > 12701 (nT) 2005 to January 6, 2006 (Block 1) 2005 to January ion area to discuss their project. Fugro Helidas (Block 2) nanoteslas 0 LEGEND North-South (Block 2) 2 readings per second (Block 2) 90 80 60 50 30 20 75 m (Block 2) -20 -30 -50 -60 -80 nanoteslas (nT) 660 520 430 370 320 280 250 220 190 160 130 110 East-West (Block 2) 2 readings per second (Block 2) -100 -120 -160 1000 m (Block 2) PNAV 2100 (Block 2) 0 m below aircraft (Block 2) 0 m below Honeywell AA 330 (Block 2) Honeywell Ashtec Glonass GG24 (Block 2) February 10, 2006 to March 6, (Block 2) February Line direction MAGNETIC CONTOURS SURVEY PARAMETERS 10 nT contour 50 nT contour 250 nT contour 0.01 nT (Block 2) FLIGHT LINE INFORMATION Scintrex CS2 caesium-vapour (Block 2) Scintrex CS2 caesium-vapour (Block 2) RESIDUAL MAGNETIC FIELD GRID Projection: Universal Transverse Mercator Datum: NAD83 Central meridian: 93°00' W (UTM zone 15N) Central scale factor: 0.9996 False easting: 500 000 m False northing: 0 m Amador Gold Corp. (Block 1) (Banting–Chambers property) Temex Resources Corp. (Block 2) (Cobalt area) Nominal aircraft terrain clearance: 80 m (Block 1) Traverse line spacing: 50 m (Block 1) Control line spacing: 500 m (Block 1) Traverse line direction: N44°E (Block