Industrial Fuels (Classic Reprint)

Bücher

Angebote / Angebote:

Excerpt from Industrial FuelsSeams: In carboniferous times there was a growth of vegetation more prolific than had ever been possible in previous history or has been possible since. The condition of the atmosphere, soil, heat, and moisture were exceptionally favorable to luxuriant growth. It is generally believed that a tropical heat existed over the whole earth, a condition on which different theories have been made. It has been claimed by some scientists that the earth was nearer the sun than at present, and, therefore, was heated with greater intensity, while others claim that the atmosphere was charged to a greater extent with carbon dioxide, which stimulated the growth of plants and served to retain the genial warmth of the sun.During the period of the rich growth of vegetation, the great convulsions and upheavals of the earth were taking place, which caused the primeval forests to be overwhelmed and buried beneath the water and vast accumulations of earth and sediment. The convulsions have been repeated and caused alternate elevation and subsidence with the depositing of sand and shale in the lower regions. The water has eventually gravitated to the lower regions, and con ditions suitable for plant growth have again prevailed. The formation of coal in seams is undoubtedly caused by a repetition of the process, and each seam te presents the period when the water was driven back and vegetation enabled to ¿ourish. The intermediate strata represents periods during which the decaying vegetable matter was submerged and gradually covered by accumulations of sand and sediment.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.