Weathering of the Pittsburgh Coal Bed, at the Experimental Mine, Near Bruceton, Pa (Classic Reprint) - Horace C. Porter, Paperback

• Release Date   2/28/2018
• ISBN-13   9781331939429 | 978-1-331-93942-9
• ISBN   1331939429 | 1-331-93942-9
• Format   Paperback
• Author(s)   Horace C. Porter
• Excerpt from Weathering of the Pittsburgh Coal Bed, at the Experimental Mine, Near Bruceton, PaThe chemical analyses Show that changes in composition have occurred in the coal for a distance of about 50 feet from the outcrop. The analytical data serve as a basis for certain deductions as to the nature of these changes. Several points of similarity become evident between weathered coal of this character and the Cretaceous coals and lignites. On the other hand, certain dissimilar properties of the two render it altogether doubtful whether a true metamorphosis or reversion of the bituminous coal to the lignitic type could ever take place through the agency of weathering. The analyses also Show that the composition and heating value of the unweathered coal, computed on the moisture and ash free basis, are fairly constant.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.