Geological Criteria for Determining the Structural Position of Sedimentary Beds (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from Geological Criteria for Determining the Structural Position of Sedimentary Beds

Ripple marks may be defined as rhythmic undulations that may be seen in sediments, clouds and snow; the name calling attention to the similarity of these markings to ripples formed on the surface of water by the wind. The name refers, then, only to their general shape and repetition and should bear no inference as to size, relative dimensions and origin.

In all cases such 'wavelike forms have resulted from either translational or undulatory movements in the adja cent medium, the former usually being called current ripples and the latter wave, normal, or oscillation ripples. A medium which has an oscillatory movement may also have one of translation; consequently it is not uncommon for ripple marks to result from a combination of these two methods (pl. Iv-b) and all gradations from one to the other may be expected. Ripple marks may be formed either by an unequal deposition of new sediments or by the reworking of unconsolidated material previously deposited.

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.

Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.