Key to a Chart of the Successive Geological Formations, with an Actualsection from the Atlantic to the Pacific Ocean - Couverture souple
Synopsis
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is turally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
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Présentation de l'éditeur
Towards the left hand side of the chart there is represented a large mass of rock colored red, which is regarded as the basis upon which, or against which, all the other rocks rest. To the right of this are represented the several successive strata or layers composing the entire series of stratified rocks. By observing the direction of the stripes which represent these strata, and which are in truth as we find them in nature, it will be seen, that by passing along the upper margin, from rigid to left, we pass over the strata in the same order as they occur in passing downwards along the right hand margin of the section. In other words, we may obtain the same information by travelling along the surface of the earth as we should do by penetrating downwards towards the centre. In no limited region of country will all the strata here represented be seen ;nevertheless, all these strata, and all the phenomena exhibited, from the granite peak on the left, as far to the right as the limits of the Carboniferous formation, may be seen in travelling over the country from the northern part of New York to the centre of Pennsylvania.
(Typographical errors above are due to OCR software and don't occur in the book.)
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