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Line 17: + + + + − [[file:using-magnetics-in-petroleum-exploration_fig14-4.png|300px|thumb|{{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|300px|thumb|{{figure number|2}}. Copyright: LaBerge, 1976; courtesy International Basement Tectonics Assoc.]]
Basement fault blocks and fault block patterns (view source)
Revision as of 13:43, 14 July 2014
, 13:43, 14 July 2014→Study of shield areas
==Study of shield areas==
==Study of shield areas==
<gallery mode=packed heights=200px widths=200px>
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}}. 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.
</gallery>
The Landsat and SLAR images of exposed Precambrian crystalline crust ([[:file:using-magnetics-in-petroleum-exploration_fig14-4.png|Figure 1]]) show highly lineated terrains and demonstrate that the linears fall into multiple parallel or subparallel sets of varying strike directions. These overlapping fracture sets cut the basement into blocks of varying shapes and sizes. This collection of basement blocks is the '''basement fault block pattern'''.
The Landsat and SLAR images of exposed Precambrian crystalline crust ([[:file:using-magnetics-in-petroleum-exploration_fig14-4.png|Figure 1]] show highly lineated terrains and demonstrate that the linears fall into multiple parallel or subparallel sets of varying strike directions. These overlapping fracture sets cut the basement into blocks of varying shapes and sizes. This collection of basement blocks is the '''basement fault block pattern'''.
==Precambrian surface topography==
==Precambrian surface topography==