Methods and Case Histories in Mining Geophysics, Volume 4General Committee of the Sixth Commonwealth and Metallurgical Congress, 1957 - Geophysics - 359 pages |
Contents
INTRODUCTORY | 3 |
The Negative Magnetic Anomalies of Rivière Portneuf and Lac Pauline | 163 |
Magnetometer Surveys in the Area of the Bourlamaque Batholith and | 176 |
13 other sections not shown
Common terms and phrases
aeromagnetic aeromagnetic survey asbestos bands BARTON CREEK bedrock boreholes Boston township Cameron Lake Canada cent conductive conductors contours copper costean Creek curves deposits depth detail diabase diamond drilling dip needle drill holes dyke earth east electrical electrode electromagnetic survey exploration fault feet formation frequency gabbro gammas geochemical Geol geological mapping geologist Geophysical Prospecting geophysicist granite graphitic gravity greywacke ground magnetometer horizontal in-phase indicated interpretation intervals intrusive iron-formation Lake layer lines located magnetic anomalies magnetic data magnetic field magnetic surveys magnetite magnetometer magnetometer survey massive sulphide measurements meter-ohms miles milligals Mining observed obtained orebodies out-of-phase outcrops overburden peridotite potentials Precambrian present profiles pyrite pyrrhotite receiving coil reconnaissance REEF resistivity response rhyolite Ridge rocks samples schist sediments self-potential shown in Figure shows soil spontaneous polarization Stilfontein sulphide sulphide body surface tion township transmitting coil traverse values variations vertical volcanic voltage