First vertical derivative of the magnetic field, Gullbridge aeromagnetic survey, Newfoundland and Labrador, parts of NTS 12 A/16 W and 12 H/1 W
2007 ◽
2008 ◽
2007 ◽
2008 ◽
2008 ◽
2019 ◽
2007 ◽
2019 ◽