Report of progress 1874-1889, A-Z .. . etimes show wonderful changes in theirlithological character, for sometimes one shaft will passthrough nothing but sandstone, while another a quarter orhalf a mile off, will go through nothing but slate. The sandrock noted in the section at an elevation of 937feet is exposed in a quarry a short distance from MiddlesexStation. It is without doubt, the rock underlying the SharonCoal bed,—the Conglomerate of Ohio, or at least theupper part of that rock. Beneath it the exposures arerather meager: they consist of ferriferous shales, slates,and flaggy sandstone
Report of progress 1874-1889, A-Z .. . etimes show wonderful changes in theirlithological character, for sometimes one shaft will passthrough nothing but sandstone, while another a quarter orhalf a mile off, will go through nothing but slate. The sandrock noted in the section at an elevation of 937feet is exposed in a quarry a short distance from MiddlesexStation. It is without doubt, the rock underlying the SharonCoal bed,—the Conglomerate of Ohio, or at least theupper part of that rock. Beneath it the exposures arerather meager: they consist of ferriferous shales, slates,and flaggy sandstone. Bethel fi Surface level. J Clay hard-pan, 14 £ Slate, 25 S Ball iron ore, 1 1128 g ©Slate, with a 10 coal seam near middle, 60 1023 0 Block coal, . . 36 to 3 Fireclay, 0 to 6 Sandstone, .... 1 6 Fireclay, 6 to 1 Flag, SS., . .2 to 20Hard sandstone, . (25) to (5)Interval, (shales 1) ... .40 1020 8 .PIo m 930U Shale and flaggy ferriferous | SS., 15 o Shale, 26 8893 Thinbeddedflaggy SS., . —Concealed, —. 214 V. REPORT OP PROGRESS. H. M. CHANCE. In going up the coal railway from Middlesex to Bethelthe section represented by Fig. 145 was compiled. Theupper part of the description was made from the strata,passed through in Spearman, Ulp & shaft at the lat-ter place. The surface has been planed off in the vicinity of Bethel,below the horizon of the Mercer Group. Above the Block Coal (Sharon bed) we would expect tofind the Connoquenessing Sandstones, but that group ishere entirely represented by slate. The small coal seamoccurring about 40 feet above the Sharon Coal bed is quitepersistent but is always too thin to mine. It lies too lowto be identified with the Quakertown Coal of Report QQ,and should properly be classed with the Sharon bed, in agroup that could with propriety be called the Sharon the main coal bed occurs a variable sandrockconsisting of two layers ; an upper flaggy stratum with aharder and more massive rock beneath it, and
Size: 1095px × 2282px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1, bookdecade1870, booksubjectcoal, booksubjectgeology
