Observations on the Ground Waters of Rio Grande Valley Classic Reprint
Idioma: inglés
Editorial: Forgotten Books, 2019
- Tapa dura
- Nuevo
Librería: PBShop.store US, Wood Dale, IL, Estados Unidos de AmericaPBShop.store US
Vendedor de IberLibro desde 7 de abril de 2005
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Cantidad disponible: 15 disponibles
Añadir al carritoDescripción del artículo del vendedor
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N° de ref. del artículo LX-9780364037652
- Título
- Observations on the Ground Waters of Rio Grande Valley Classic Reprint
- Autor
- Charles Sumner Slichter
- Editorial
- Forgotten Books
- Año de publicación
- 2019
- Estado
- New
- Encuadernación
- HRD
- Idioma
- inglés
- ISBN 10
- 0364037652
- ISBN 13
- 9780364037652
- Peso del artículo
- 346 gramos
An investigation of the underfiow of the Rio Grande was begun in the latter part of August, 1904, at the narrows of the Rio Grande, a few miles above El Paso, Tex., where the stream flows through a narrow gorge Of limestone. At this place is the site of the proposed mexican-american international dam. At the surface of the water the distance between the walls of the gorge is less than 400 feet. The dam site has been investigated by the International (water) Boundary Commission, organized by the joint action of the American and Mexi can Governments, and maps and reports concerning the proposed dam will be found in the Proceedings of the International (water) Bound ary Commission, vol. 2, page 277.
A brief reconnaissance at the site of the proposed international dam indicated that there could be, no underflow of any magnitude at this point. The distance between the walls of the gorge is less than 400 feet, and the test borings made by the Mexican commission in 1897 seemed to indicate that the maximum depth to bed rock is 86 feet. A cross section of the gorge, based upon the Mexican borings, is shown in fig. 2. In this diagram the vertical and horizontal scale are the same. A cross section of less than square feet could not trans mit a large volume of ground water even if other conditions were favorable. The highest velocity ever determined for ground water is about 100 feet in twenty-four hours, and assuming this maximum velocity at the above cross section, and a porosity of one-third in the water-bearing sands and gravel, the daily discharge Would be cubic feet, or 151} cubic feet per second. The gradient of the water plane at the narrows is but 3555 feet to the mile, and all other indica tions point to a low rather than a high velocity.
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.
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PBShop.store US
Wood Dale, IL, Estados Unidos de America
Vendedor de IberLibro desde 7 de abril de 2005
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