Preliminary appraisal of the hydrology of the Blocker area, Pittsburg County, Oklahoma

Marcher, Melvin V.; Bergman, D. L.; Stoner, J. D.; Blumer, S. P.

Abstract:

Bedrock in the Blocker area of southeastern Oklahoma consists principally of shale, siltstone, and sandstone of the Boggy and Savanna Formations of Pennsylvanian age. These rocks have been folded to form the Panther Mountain syncline on the south and the Kinta anticline on the north. Alluvium along streams is less than 15 feet thick and consists mainly of sandy silt. Water in bedrock is under artesian conditions. Well depths range from 11 to 213 feet and average 75 feet. In 86% of the wells measured, the water level was less than 30 feet below the land surface. Because the rocks have minimal permeability, well yields probably are less than 5 gallons per minute. Ground water is commonly a mixed cation bicarbonate type with dissolved solids ranging from about 300 to 2,000 milligrams per liter. No relationship between water chemistry and well depth or geographic distribution is apparent. Streams in the area are ephemeral and there are extended periods of no flow. Blue Creek was dry 30% of the time during 1976-80 and had flows of less than 0.1 cubic foot per second for at least 80 consecutive days. Stream water is generally a mixed cation sulfate type. The maximum dissolved-solids concentration determined in stream water was 3670 milligrams per liter. Maximum suspended sediment discharge, in tons per day, was about 235 for Blue Creek, 40 for Blue Creek tributary, and 630 for Mathuldy Creek. Silt-clay particles (diameters less than 0.062 millimeter) are the dominant sediment size. Surface mining for coal undoubtedly will have some effect on the environment. The most likely deleterious effects are increased sediment loads in streams and increased mineralization of stream waters. However, these effects should be of only limited extent and duration if appropriate mining and reclamation practices are followed. (USGS)

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USGS Numbered Series

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7422

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Marcher, Melvin V.; Bergman, D. L.; Stoner, J. D.; Blumer, S. P.

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ENGLISH

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iv, 52 p. :ill., maps ;28 cm.

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U.S. Geological Survey,

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Open-File Report

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OFR

Citation Series Number:

81-1187

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Preliminary appraisal of the hydrology of the Blocker area, Pittsburg County, Oklahoma; 1981; OFR; 81-1187; Marcher, Melvin V.; Bergman, D. L.; Stoner, J. D.; Blumer, S. P.

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1981

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citation/reference

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Preliminary appraisal of the hydrology of the Blocker area, Pittsburg County, Oklahoma; 1981; OFR; 81-1187; Marcher, Melvin V.; Bergman, D. L.; Stoner, J. D.; Blumer, S. P.