Kansas Geological Survey, Current Research in Earth Sciences, Bulletin 250, part 1
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Figure 3--Portion of COCORP seismic section across Midcontinent Rift System (MRS), showing structural complexity and depth of feature. Length of section is approximately 56 mi (90 km). Depth is two-way travel times in seconds. Major reflectors colored.

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Kansas Geological Survey, Current Research
Web version Sept. 15, 2004
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