Annual report of the State Mineralogist for the year ending ... . in shales; someof the latter carbonaceous—dry _ 8. Heavy-bedded sandstone—dry . 9. Alternations of sandstone and thin shales, the latter some- times carbonaceous—wet 10. Same alternations as in 9, but dry 11. Coal, five or six inches thick 12. Alternations of sandstones and thin shales—dry 13 Heavv-bedded sand-rock— dry 14. Coal,about one foot thick, with six inches of bone on each 15. Heavy-bedded sand-rock—dry 16. Heavy-bedded sand-rock—dry 17. Coarse-grained sand-rock, generally he
Annual report of the State Mineralogist for the year ending ... . in shales; someof the latter carbonaceous—dry _ 8. Heavy-bedded sandstone—dry . 9. Alternations of sandstone and thin shales, the latter some- times carbonaceous—wet 10. Same alternations as in 9, but dry 11. Coal, five or six inches thick 12. Alternations of sandstones and thin shales—dry 13 Heavv-bedded sand-rock— dry 14. Coal,about one foot thick, with six inches of bone on each 15. Heavy-bedded sand-rock—dry 16. Heavy-bedded sand-rock—dry 17. Coarse-grained sand-rock, generally heavy-bedded 18. Clark Vein, thirty-four inches of coal 19. Same sandstone as in 17 20. Fine-grained, bluish, and clayey rock, moderately heavy- bedded, with occasional bands of coarser sand-rock a fewinches thick 21. Thin-bedded clay shales, to mouth of tunnel Between 15 and 16 in the above section there is a streak of carbonaceous shale one footthick, and also a second one of about the same thickness between 16 and 17. 128. SECTION OF STRATA ON LINE OF CLAYTON TUNNEL. As there are two little seams of coal above the Black Diamond Vein inthe Upper Black Diamond Tunnel, so also there are two little seams in theClayton Tunnel between the Black Diamond Vein and the Clark it will be seen, on closer inspection, that the positions of the upper andlower little seams in the two cases do not correspond to each other respect-ively. In fact, their distances from the middle of the Black DiamondVein are such that the lower seam in the Clayton Tunnel correspondsclosely in position with the upper seam in the Upper Black Diamond Tun-nel; while there is no seam in the Clayton Tunnel corresponding to thelower one in the upper Black Diamond Tunnel; and furthermore, themouth itself of the latter tunnel appears to be further south by some sixtyfeet than the proper position at this level for the upper seam of the ClaytonTunnel. Therefore, as the distance b
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Keywords: ., bookcentury1800, booksubjectgeology, booksubjectminesandmineralr
