. An introduction to geology : intended to convey a practical knowledge of the science, and comprising the most important recent discoveries, with explanations of the facts and phenomena which serve to confirm or invalidate various geological theories. n wood-coal, or lignite,which is supposed to be characteristic of these beds, probably thestrata with wood-coal at Alpnach (see Chap. Vlll.), may be regard-ed as belonging to a similar epoch. Some French geologists wouldplace these strata still higher in the tertiary series. The strata atAlpnach are peculiarly remarkable for containing the remai
. An introduction to geology : intended to convey a practical knowledge of the science, and comprising the most important recent discoveries, with explanations of the facts and phenomena which serve to confirm or invalidate various geological theories. n wood-coal, or lignite,which is supposed to be characteristic of these beds, probably thestrata with wood-coal at Alpnach (see Chap. Vlll.), may be regard-ed as belonging to a similar epoch. Some French geologists wouldplace these strata still higher in the tertiary series. The strata atAlpnach are peculiarly remarkable for containing the remains of thenarrow-toothed mastodon, and of other mammalia, at the depth ofnearly three hundred feet from the surface. The annexed cut is ta-ken from a drawing of one of these teeth in the possession of thelate Professor Meisner. of Berne, who also gave me specimens ofthe strata below which the tooth was found. It is deserving of notice, that teeth almost exactly similar werefound on the volcano of Imbaburra in the Andes, which is ten thou-sand feet above the level of the sea. I have one tooth in my posses-sion from thence, purchased at the sale of the late M. Faujas de , of which the annexed cut may also serve as a correct The strata at Alpnach consist of the following beds in descen-ding series:— Feet. Inches. 1. Light grey sandstone - - - 24 0 2. Light grey limestone like Jura limestone 24 0 3. Different beds of Molasse or soft sandtone 227 0 4. Light grey sandstone with mica, like No. L 6 0 5. Light grey argillaceous limestone 1 6 6. Bituminous shale in layers - - 7 0 29 226 CALCAIRE GROSSIER. Feet. Inches, 7. Stinkstone, a bituminous limestone with ) bones and river shells, the roof of > 1 to 2 feet,the coal - - - - y 8. Coal 0 6 9. Bituminous schist 0 6 to 8 10. Coal 2 0 11. Bituminous clay - - - 6 0 12. Molasse and sandstone 66 0 The bituminous strata, and shaly limestone, possessed all the char- acters of beds in the regular coal formations in
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Keywords: ., bookcentury1800, bookidintroduc, booksubjectgeology, bookyear1833
