Graphics courtesy of Parker Gay; Figure 1 from Short, et al.

Basement Mapping Highly Crucial ... return to story

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Figure 1

Figure 2

Figure 3a, b, c, d

Figure 4

Figure 5.

Sage Creek anticline, Fremont County, Wyoming. This well known thrust-fold structure in the Wind River Basin resulted from Laramide NE-SW directed compression. Note the location of basement shear zone (red) to the east of thrust at Dakota level, indicating NE dip as mapped by well data. This is one of a chain of anticlines 70 miles (105 kms) long that correlates 100 percent with magnetically mapped basement shear zones.