"Silicified" Quotes from Famous Books
 ... we had seen showed that the plateau consists of grey sandstone, capped by a ferruginous sandy conglomerate. We now came to blocks of silicified wood lying on the surface; it is so like recent wood, that no one who has not handled it would conceive it to be stone and not wood: the outer surface preserves the grain or woody fibre, the inner is ...
— The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume I (of 2), 1866-1868 • David Livingstone
... abundant in the upper parts of the limestone; at Bakewell it is quarried for use in the Potteries. At some points the limestone has been dolomitized; near Bonsall it has been converted into a granular silicified rock. A series of black shales with nodular limestones, the Pendleside series, rests upon the Mountain Limestone on the east, south and north-west; much of the upper course of the Derwent has been cut through these soft beds. Mam Tor, or the Shivering Mountain, is made of these ...
— Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 - "Demijohn" to "Destructor" • Various
... doubt but that the remains of so many molluscs, that so many shells deposited and consequently changed into fossils, and most of which were totally destroyed before their substance became silicified, furnished a great part of the calcareous matter which we observe on the surface and in the ...
— Lamarck, the Founder of Evolution - His Life and Work • Alpheus Spring Packard |
