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Radioactivity Investigations in the Cache Creek Area, Yentna District, Alaska, 1945 (Classic Reprint)
G D Robinson
Hardback. Forgotten Books 2018-04-28.
ISBN 9780366236329
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Förlagets beskrivning
Excerpt from Radioactivity Investigations in the Cache Creek Area, Yentna District, Alaska, 1945 Study by Harder and Reed (written communication, 1945) of placer concentrates from the Yentna district, southern Alaska (fig. Col Oected by J B. Mertie, J r., in 1917 indicated that several valleys in the district might contain placer deposits of radioactive minerals. The radioactivity of the concentrates, according to Larsen (written communication, 1945, to Harder and Reed) apparently is due chie y to monazite and a black cubic opaque mineral which may be uraninite or thorianite, or a solid mixture of the two.1 Data on the concentrates collected before 1945 are given in table 1. 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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