File:B100 figure 3.jpg
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Figure 3 Oil fields and structure of the Beech Creek ("Barlow") Limestone in part of Clinton County. Contour interval is 20 feet. Structure in this area is typical of most of the eastern Sparta Shelf: a gentle eastward regional dip punctuated by small circular domes. Doming in the Bartelso, Bartelso East, Boulder, Frogtown North, and Germantown East Fields is due to draping over Silurian reefs. Production in the Beckemeyer, Carlyle, and Carlyle North Fields is from stratigraphic traps in lower Chesterian sandstones. Oil in the Huey South, Posey, and Posey East Fields comes from the Cypress Sandstone, Lower Devonian carbonate rock, and nonreef Silurian strata along a subtle anticlinal nose.
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| current | 19:12, 10 July 2019 | | 2,150 × 1,760 (716 KB) | Alan (talk | contribs) |
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