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(Published November 18, 2004)
A high-resolution aeromagnetic survey was flown over a large area in northern Manitoba covering the northern extent of the Superior Boundary Zone in the Assean Lake area. This current survey, consisting of 29 400 line-kilometres of traverse and control lines, was monitored by the GSC and carried out by Goldak Exploration Ltd. of Saskatoon, Saskatchewan. Normal line spacing was 400 m for the traverses and 2400 m for the control lines, all flown according to a draped surface at a nominal ground clearance of 150 m.
This aeromagnetic survey and the production of these maps were funded by Natural Resources Canada's Targeted Geoscience Initiative (TGI) 2003–2005 and by Manitoba Industry, Economic Development and Mines. The maps were produced as part of the Trans-Hudson / Superior Margin Metallotect project as a contribution to the Northern Resources Development program of the Earth Sciences Sector, Natural Resources Canada.
High-resolution aeromagnetic survey maps of the residual total magnetic field and first vertical derivative of the total magnetic field, Assean Lake area, Manitoba
M.Coyle, F. Kiss, D. Oneschuk
22 colour maps, scale 1:50 000
| NTS | View or download free maps | |
|---|---|---|
| Residual Total Magnetic Field | Shaded Magnetic First Vertical Derivative | |
| 64 A/01 | 4785 | 4764 |
| 64 A/02 | 4784 | 4765 |
| 64 A/03 | 4783 | 4766 |
| 64 A/04 | 4782 | 4767 |
| 64 A/06 | 4781 | 4768 |
| 64 A/07 | 4780 | 4769 |
| 64 A/08 | 4779 | 4770 |
| 64 A/09 | 4778 | 4771 |
| 64 A/10 | 4777 | 4772 |
| 54 D/05 | 4776 | 4773 |
| 54 D/06 | 4775 | 4774 |
| Survey information | |||
|---|---|---|---|
| Survey Title: | Assean Lake, MB | ||
| Country: | Canada | ||
| Province: | Manitoba | ||
| Canadian Aeromagnetic Data Base Project #: | 315 | ||
| Survey Start Date: | 19-MAR-2004 | ||
| Survey End Date: | 19-APR-2004 | ||
| Data Acquisition: | digital | ||
| Platform: | fixed-wing | ||
| Survey Type: | Total field magnetic | ||
| GSC Open File Numbers: | 4764 to 4785 | ||
| Geoid: | NAD83 | ||
| Survey Boundary: | |||
| Latitude | Longitude | ||
| 56°15'00" 56°30'00" 56°30'00" 56°45'00" 56°45'00" 56°30'00" 56°30'00" 56°15'00" 56°15'00" 56°00'00" |
-97°30'00" -97°30'00" -97°00'00" -97°00'00" -96°00'00" -96°30'00" -95°00'00" -95°00'00" -96°00'00" -96°00'00" |
||
| Specifications | |||
| Survey Altitude Model: | drape | ||
| Max. Rate of Climb (%) | 5% | ||
| Flight Path Recording: | video | ||
| Flight Lines: | |||
| Traverse: | |||
| Flying Height: | 150 m |
||
| Line Direction: | 0° |
||
| Line Spacing: | 400 m |
||
| Total Kilometres | 24,500 lkm |
||
| Start Line #: | 10 |
||
| End Line #: | 4690 |
||
| Control: | |||
| Flying Height: | 150 m |
||
| Line Direction: | 90° |
||
| Line Spacing: | 2400 m |
||
| Total Kilometres | 4,900 lkm |
||
| Start Line #: | 80010 |
||
| End Line #: | 80360 |
||
| Primary Navigation System: | GPS Recording Freq.: 10 Hz | ||
| Altitude above surface monitoring: | RADAR Recording Freq.: 4 Hz |
||
| Diurnal Monitoring: | |||
| Time Chord Length: | (4,500 m) | 1 minute |
|
| Max. Deviation: | 3 nT |
||
| Recording Freq.: | 2 Hz |
||
| Magnetics: | |||
| Sensor: | Geometrics | G822A | |
| Sensitivity: | 0.005 nT | ||
| Resolution: | 0.01 nT | ||
| System: | Cesium | ||
| Recording Freq.: | 10 Hz | ||
| Vertical Gradiometer | |||
| Sensor Separation: | n/a | ||
| Electromagnetics: | |||
| System: | n/a | ||
| Frequencies: | n/a | ||
| Abbreviations: | n/a | ||
| VLF: | |||
| Line Station: | n/a | ||
| Spectrometry: | n/a | ||
