Lanterna Rally

Author: Joseph T. Singewald

Publisher: Forgotten Books

Published: 2017-12-21

Total Pages: 94

ISBN-13: 9780484357982

Excerpt from Concentration Experiments With the Siliceous Red Hematite of the Birmingham District, Alabama The-ores are bedded in the Clinton or Rockwood formation of Silurian age, which outcrops along Red Mountain, and gives the mountain its name. The beds dip away from the valley at angles ranging from 15° to but averaging less than One or more ore beds of greater or less importance are everywhere present in the Rockwood formation, and within that part of Red Mountain of greatest. Economic importance - that is, between Morrow Gap and Sparks Gap - there are four important beds, known, respectively, in their order from top to bottom, as the Hickory Nut, Ida, Big, and Irondale seams. The Hickory Nut seam is the least important of the four and has received little attention. It comprises 3 to 5 feet of sandy ore or ferruginous sandstone, characterized by abundant fossils of the brachiopod Pentamerus oblongus, which, on account of looking like a hickory nut in its hull, has given the bed the name. The bed lies about 12 to 20 feet above the Ida seam and reaches its greatest thickness between Birmingham and Bessemer. The other three seams are described on subsequent pages in connection with the results of the concentration experiments. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.