Changes

==Study of shield areas==

==Study of shield areas==

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using-magnetics-in-petroleum-exploration_fig14-4.png|{{figure number|1}}Landsat and SLAR images of exposed Precambrian crystalline crust. Copyright: Gay;<ref name=Gay1995>Gay, S.P., Jr., 1995, The basement fault block pattern: its importance in petroleum exploration, and its delineation with residual aeromagnetic techniques, in R.W. Ojakangas, ed., Proceedings of the 10th International Basement Tectonics Conference, p. 159–207.</ref> courtesy International Basement Tectonics Assoc.

using-magnetics-in-petroleum-exploration_fig14-4.png|{{figure number|1}}Landsat and SLAR images of exposed Precambrian crystalline crust. Copyright: Gay;<ref name=Gay1995>Gay, S.P., Jr., 1995, The basement fault block pattern: its importance in petroleum exploration, and its delineation with residual aeromagnetic techniques, in R.W. Ojakangas, ed., Proceedings of the 10th International Basement Tectonics Conference, p. 159–207.</ref> courtesy International Basement Tectonics Assoc.

file:using-magnetics-in-petroleum-exploration_fig14-5.png|{{figure number|2}}Geologic map of an area of crystalline basement in central Wisconsin on the southern edge of the Canadian Shield. Copyright: LaBerge;<ref name=LaBerge1976>LaBerge, G.L., 1976, Major structural lineaments in the Precambrian of central Wisconsin: Proceedings of the First International Conference on the New Basement Tectonics, Utah Geological Assoc., p. 508–518.</ref> courtesy International Basement Tectonics Assoc.

file:using-magnetics-in-petroleum-exploration_fig14-5.png|{{figure number|2}}Geologic map of an area of crystalline basement in central Wisconsin on the southern edge of the Canadian Shield. Copyright: LaBerge;<ref name=LaBerge1976>LaBerge, G.L., 1976, Major structural lineaments in the Precambrian of central Wisconsin: Proceedings of the First International Conference on the New Basement Tectonics, Utah Geological Assoc., p. 508–518.</ref> courtesy International Basement Tectonics Assoc.