Project Gutenberg 2010-09-18 Public domain in the USA. 70 Udden, Johan August 1859 1932 Udden, J. A. (Johan August) 19027126 Fossil Ice Crystals: An Instance of the Practical Value of "Pure Science" Produced by Chris Curnow, Iris Gehring and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "Fossil Ice Crystals: An Instance of the Practical Value of 'Pure Science'" by Udden is a scientific publication written in the early 20th century. This work primarily focuses on the significance of geological observations, particularly the study of fossilized ice crystal markings found in various sedimentary rocks. Udden aims to demonstrate how seemingly insignificant geological phenomena can have important practical applications, particularly in the context of understanding and locating natural resources. In the text, Udden recounts his fieldwork that led to the discovery of peculiar ice crystal markings in fossilized rock layers across different locations, including the Black Hills, South Dakota, and various sites in Texas. He meticulously documents his observations, detailing the formation and patterns of these ice crystals and their implications for understanding past climatic conditions and geological processes. Eventually, he illustrates the practical value of his findings in the context of mining geology, showing how knowledge of these crystal patterns can help locate valuable ore deposits. Udden’s work emphasizes the intertwined nature of pure scientific inquiry and practical applications in geology. (This is an automatically generated summary.) en Fossils Ice GB Text Browsing: Nature/Gardening/Animals Browsing: Science - General 55411 54742 2024-09-14T08:42:12.026806 2023-09-15T04:05:01.621990 text/html text/html 49530 2021-01-07T00:39:50 text/html; charset=iso-8859-1 1000138 2021-01-07T00:39:50 text/html; charset=iso-8859-1 application/zip 1018881 2024-09-14T08:42:17.197775 application/epub+zip 1017144 2024-09-14T08:42:14.748779 application/epub+zip 85847 2024-09-14T08:42:13.759787 application/epub+zip 1216017 2024-09-14T08:42:18.976745 application/x-mobipocket-ebook 1204701 2024-09-14T08:42:16.479786 application/x-mobipocket-ebook 163000 2022-09-15T11:37:25.082906 application/x-mobipocket-ebook 39429 39225 2024-09-14T08:42:11.583804 2023-09-15T04:05:01.215999 text/plain; charset=us-ascii text/plain 39063 2021-01-07T00:39:50 text/plain; charset=us-ascii 14254 2021-01-07T00:39:50 text/plain; charset=us-ascii application/zip 18213 2024-09-14T08:42:19.116746 application/rdf+xml 25265 2024-09-14T08:42:14.100921 image/jpeg 4612 2024-09-14T08:42:13.927815 image/jpeg 1082780 2024-09-14T08:42:12.066874 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog