Technical paper issued by the Bureau of Mines over progress made for thawing gravel in placer mines. Different thawing tests are presented and discussed. This paper includes tables, photographs, and illustrations.
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Added Title:
Technical paper: United States Department of the Interior, Bureau of Mines, 309
Description
Technical paper issued by the Bureau of Mines over progress made for thawing gravel in placer mines. Different thawing tests are presented and discussed. This paper includes tables, photographs, and illustrations.
This report is part of the following collection of related materials.
Technical Report Archive and Image Library
The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.
Janin, Charles.Recent Progress in the Thawing of Frozen Gravel in Placer Mining,
report,
June 1922;
Washington D.C..
(https://digital.library.unt.edu/ark:/67531/metadc66453/:
accessed April 20, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.