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AAPG Bulletin; October 1966; v. 50; no. 10; p. 2112-2118
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Geology of Saber bar, Logan and Weld counties, Colorado

E. G. Griffith

The oil-productive Saber bar in northeast Colorado is a linear, north-trending barrier bar deposit of Upper Cretaceous 'D' sandstone, in an area where sandstone development generally is poor. Development drilling reveals a sandstone body at least 10 miles long, about one mile wide, and as thick as 45 feet. Very likely the sand was supplied from the seaward (west) side by longshore currents. Permeability (several hundred millidarcys) increases toward the upper surface and the seaward side of the barrier bar and should exceed 500 md in future wells drilled farther seaward on the bar.

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