Changes

[[file:developing-a-philosophy-of-exploration_fig1-3.png|thumb|{{figure number|2}}See text for explanation.]]

[[file:developing-a-philosophy-of-exploration_fig1-3.png|thumb|{{figure number|2}}See text for explanation.]]

Higher resistivity on electrical logs shows the brittle, more fracturable benches within the Niobrara. Constructing a detailed [[Geological cross sections|cross section]], showing fracturable benches, maximum bed curvature, and any surface and subsurface normal faulting, allows the explorer to visualize and accurately plot the angle at which the well bore must be drilled to penetrate the critical elements.

Higher resistivity on electrical logs shows the brittle, more fracturable benches within the Niobrara. Constructing a detailed [[Geological cross sections|cross section]], showing fracturable benches, maximum bed curvature, and any surface and subsurface [[Fault trap regime|Normal fault]]ing, allows the explorer to visualize and accurately plot the angle at which the well bore must be drilled to penetrate the critical elements.

Seismic surveys are not particularly helpful in mapping normal faults because they are listric with about 100-300 ft of throw at the surface and about 30-80 ft of throw in the Niobrara. The faults are usually not present below the Niobrara. Therefore, although the Mesa Verde provides good seismic marker beds, the underlying Mancos and Niobrara

Seismic surveys are not particularly helpful in mapping normal faults because they are listric with about 100-300 ft of throw at the surface and about 30-80 ft of throw in the Niobrara. The faults are usually not present below the Niobrara. Therefore, although the Mesa Verde provides good seismic marker beds, the underlying Mancos and Niobrara