"Syenite" Quotes from Famous Books
 ... hard rock," replied the tunnel contractor. "Briefly, Paleozoic rocks make up the eastern part of the Andean Mountains in Peru, while the western range is formed of Mesozoic beds, volcanic ashes and lava of comparatively recent date. Near the coast the lower hills are composed of crystalline rocks, syenite and granite, with, here and there, a strata of sandstone or limestone. These are, undoubtedly, relics of the lower Cretaceous age, and we, or rather, my brother, states that he has found them covered with ...
— Tom Swift and his Big Tunnel - or, The Hidden City of the Andes • Victor Appleton
... the fact that, of the 123 Thracian localities carrying on the preparation of otto in 1877—they numbered 140 in 1859—42 belong to it. The only place affording otto on the northern side of the Balkans is Travina. The geological formation throughout is syenite, the decomposition of which has provided a soil so fertile as to need but little manuring. The vegetation, according to Baur, indicates a climate differing but slightly from that of the Black Forest, the average summer temperatures being ...
— Scientific American Supplement No. 275 • Various |
