. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. PieropTiyllum comptum. Syn. Cycadites eomptus. Upper Sandstone and Shale, Gristhorpe, near Scarborough. Fig. Hemitelites Broicnii, Goepp. Syn. Phlebopteris contigua, Lind. <fc Hntt. Upper Carbonaceous strata, Lower Oolite, Gristhorpe, Yorkshire. shales are well exposed in the sea-cliffs at Whitby, and are chiefly characterized by ferns and cycadese. They contain, also, a species of calamnite, and a fossil called Equisetum columnare, which main- tains an upri
. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. PieropTiyllum comptum. Syn. Cycadites eomptus. Upper Sandstone and Shale, Gristhorpe, near Scarborough. Fig. Hemitelites Broicnii, Goepp. Syn. Phlebopteris contigua, Lind. <fc Hntt. Upper Carbonaceous strata, Lower Oolite, Gristhorpe, Yorkshire. shales are well exposed in the sea-cliffs at Whitby, and are chiefly characterized by ferns and cycadese. They contain, also, a species of calamnite, and a fossil called Equisetum columnare, which main- tains an upright position in sandstone strata, over a wide area. Shells of Estheria and JJnio, collected by Mr. Bean from these York- shire coal-bearing beds, point to the estuary or fluviatile origin of the deposit. At Brora in Sutherlandshire, a coal formation, probably coeval with the above, or belonging to some of the lower divisions of the Oolitic period, has been mined extensively for a century or more. It affords the thickest stratum of pure vegetable matter hitherto detected in any secondary rock in England. One seam of coal of good quality has been worked 3-| feet thick, and there are several feet more of pyritous coal resting upon Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lyell, Charles, Sir, 1797-1875. New York, D. Appleton and co.
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1868
