Changes

==Detecting basement hills==

==Detecting basement hills==

The basement hill and obvious magnetic anomaly shown on the left side of [[:file:using-magnetics-in-petroleum-exploration_fig14-8.png|Figure 3]] assumes a uniform magnetic susceptibility for basement. However, given that basement is usually block faulted, is this type of feature detectable? If we are looking at a topographic prominence centered on a basement block, the detection problem becomes that shown on the right side of the figure. A series of adjacent basement blocks having different magnetic susceptibilities results in a residual magnetic pattern of alternating highs and lows (solid lines).

The basement hill and obvious magnetic anomaly shown on the left side of [[:file:using-magnetics-in-petroleum-exploration_fig14-8.png|Figure 3]] assumes a uniform magnetic susceptibility for basement. However, given that basement is usually block faulted, is this type of feature detectable? If we are looking at a topographic prominence centered on a basement block, the detection problem becomes that shown on the right side of the figure. A series of adjacent basement blocks having different magnetic susceptibilities results in a residual magnetic pattern of alternating highs and lows (solid lines).