Identifier: bulletin18virg (find matches)
Title: Bulletin
Year: 1908 (1900s)
Authors: Virginia. Division of Mineral Resources Virginia. Geological Survey. Bulletin Virginia. Geological Survey. Geological series, bulletin Virginia. Division of Geology. Bulletin
Subjects: Mines and mineral resources Geology
Publisher: Charlottesville
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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(Xo.3 Pocah-ntas) Coal .. 0 11 Bone Fiieclay 2 Shale, sandy 16 Sandstone 15 9 NORTON FORMATION. The surface rocks of the greater part of Buchanan County belong tothe Norton formation, parts of which are exposed in every deep valley. Thethickness of the Norton ranges from 825 feet in the northwestern cornerof the county and about 900 feet along Tug Fork to about 1,300 feet onSandy Eidge near Big A Mountain. The thickness increases more or lessuniformly in a direction slightly east of south, chiefly because nearly allof the constituent beds thicken in that direction. A few beds found in the COUNTY. Depth. Ft. in. 1.201 1,202 1,202 6 1,215 1,245 1294 1.295 1.295 2 1.299 2 1.300 10 1.304 10 1.307 10 1.312 4 1 325 4 1,334 4 1,335 6 1.337 1.343 6 1,350 1,359 1.361 1,361 2 1.362 1.363 1.371 6 1,371 10 1,373 1,378 1.390 1.398 1.402 1.402 4 1,404 1,464 1.466 1.466 3 1.468 3 1.484 3 1.500 VIIKilNIA GEOI.OOKWL SIUVEY1 PLATE V. ske:tch map of buchanan county,showing area to which sections apply.
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Conglomeraticsandstone <Teneralized columnar sections of the Pennsylvanian rocks exposed in Buchanan County. (Numl)eis in paren-theses show, in feet, the maximum and minimum intervals between the principal coals; other numbersshow tlie rno^t coiiiiiKiii intervals.) GEOLOGIC FORMATIONS. 17 southern part of the county are absent from the )iorthern border, and mostof those below the Jawbone horizon are lacking- in exposures in The Breaks,near the northwestern corner. The formation consists chiefly of beds of sandstone, shale, and coalhaving the characteristics described as common to all Pennsylvanian strata.Layers of clay are associated with some of the coals and small limestonenodules were found a short distance above the Kennedy horizon on GrassyCreek and on Knox Creek near Kelsa. The most important deposits arethe coals, which will be fully described in the part of this report devotedto coal resources. The stratigraphic succession, including the position ofall coal beds, is shown i

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