First vertical derivative of magnetic field with Keating coefficients map Ontairo : Opasatika : NTS 42 G/10.
Series: Ontario. Geological Survey. Map 81 726; Canada. Geological Survey. Open file 4083
Publisher: Ministry of Northern Development & Mines; Geological Survey of Canada
Place of publication: Sudbury; Ottawa
Language: eng
Number of pages: 50
Subjects: Geology - Ontario - Opasatika; NTS 42 G/10
Notes: 11