Travel Books:

Geology of Pachuca and El Oro, Mexico (Classic Reprint)

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Paperback / softback
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Description

Excerpt from Geology of Pachuca and El Oro, Mexico Within this older andesite are east-west zones, of extensive and profound thermal alteration in which the rocks have been altered over areas probably several miles long and often hundreds of feet wide. The altered rock is softer and lighter in color than the fresh andesite and carries occasional pyrite crystals, with calcite films and veinlets, and even quartz incrustations. It is in these altered zones in the older andesite (and dacite) that the' important ore deposits have been found and developed. 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.
Release date NZ
May 15th, 2018
Audience
  • General (US: Trade)
Country of Publication
United Kingdom
Illustrations
5 Illustrations; Illustrations, black and white
Imprint
Forgotten Books
Pages
22
Publisher
Forgotten Books
Dimensions
152x229x1
ISBN-13
9781334479298
Product ID
26533232

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