François E Matthes / Geologic History of the Yosemite Valley Professional

Description: Geologic History of the Yosemite Valley [Professional Paper 160] Author: Matthes, François E. Title: Geologic History of the Yosemite Valley [Professional Paper 160] Publication: Washington, D. C. Government Printing Office, 1930 Description: Blue cloth, gilt lettering, 137 pages, indexed, illustrated. good. The problem of the origin of the Yosemite Valley inherently demands a solution in quantitative terms. Its essence is, To what extent is the valley a product of glacial action, to what extent a product of stream erosion? The principal result of the investigations upon which this report is based is the determination within narrow limits of the preglacial depth of the Yosemite Valley and of other facts concerning its preglacial development which permit fairly definite estimates of the proportionate shares of work performed by stream and by glacier. The investigations comprise a detailed survey of the glacial and geomorphologic features of the Yosemite region and an equally intensive study of its rock formations, supplemented by reconnaissance work of both kinds in adjoining parts of the Sierra Nevada. The petrologic studies were made by Frank C. Calkins; the glacial and geomorphologic survey by Francois E. Matthes. DR3. Seller ID: 5567164 Subject: Earth Science, Mining Crossroads Books Specializing in metaphysical occult books with smattering of other genres. Terms All orders ship within two business days. Standard mail is USPS Media Mail. Expedited and international shipping are also available. We offer combined shipping on multiple orders. All items are guaranteed to be as described or they may be returned within 30 days of receipt for a full refund.This listing was created by Bibliopolis.

Price: 82.5 USD

Location: Reno, Nevada

End Time: 2024-09-28T01:29:01.000Z

Shipping Cost: 6.13 USD