Download or read book Verification of Uraninite in Fluorite Breccias from the Blue Jay Mine Jamestown Colorado written by George Phair and published by . This book was released on 1950 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrothermal Uranothorite in Fluorite Breccias from the Blue Jay Mine Jamestown Boulder County Colorado written by George Phair and published by . This book was released on 1951 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the course of thin-section and heavy-mineral studies of fluorite breccias from Jamestown, Colo., the mineral thorite, variety uranothorite, was identified on the basis of chemical, spectrographic, optical, and X-ray data. This uranothorite is compared with uranothorite from South Westland, New Zealand, described by Hutton (1950), and with similar material from an Alaskan placer sample studied by the writers. These uranothorites are in turn contrasted with uranothorites described in the older literature all of which represent hydrated material. Thorium halos in fluorite are described, probably for the first time. The uranothorite associated with fluorite breccias is clearly of hydrothermal origin--unlike all previously described thorites and uranothorites with one very doubtful exception.

Download or read book Summary of the Research Work of the Trace Elements Section Geochemistry and Petrology Branch for the Period April 1 1948 December 31 1950 written by John C. Rabbitt and published by . This book was released on 1951 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiometric Examination of the Williamson and General Chemical Fluorite Deposits Jamestown District Boulder County Colorado written by Ernest Pete Beroni and published by . This book was released on 1950 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reconnaissance of Uranium and Copper Deposits in Parts of New Mexico Colorado Utah Idaho and Wyoming written by Edwin Wallace Lohr and published by . This book was released on 1949 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Circular written by and published by . This book was released on 1962 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stratigraphic Sections of the Phosphoria Formation in Utah 1947 48 written by L. E. Smith and published by . This book was released on 1952 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Circular written by and published by . This book was released on 1953 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Trace Elements and Related Reports Through 1953 written by Jane House Wallace and published by . This book was released on 1954 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Trace Elements and Related Reports Through 1954 written by Jane House Wallace and published by . This book was released on 1955 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Search for Uranium in the United States written by Vincent Ellis McKelvey and published by . This book was released on 1955 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MINERALS OF COLORADO A 100 YEAR RECORD written by United States. Department of the Interior and published by . This book was released on 1969 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metal Deposits in Relation to Plate Tectonics written by Frederick J. Sawkins and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book metal deposits, in particular those of non-ferrous and precious metals, are classified and analyzed in terms of their plate tectonic settings. This approach allows a meaningful treatment of metal deposits of different types and provides significant insights into both their genesis and formative environments. The updated 2nd edition incorporates the most significant advances in economic geology of the last 5 years. Particular attention is paid to the geological settings and generative models of gold deposits of all kinds.

Download or read book Ore Microscopy written by James R. Craig and published by . This book was released on 1981-06-04 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an up-to-date introduction to the subject of ore microscopy, emphasizing the basic skills required for the study of opaque minerals in polished sections. Describes the modern ore microscope, the preparation of polished and polished-thin sections of opaque minerals and ores, and the identification of these minerals using both qualitative techniques and the quantitative methods of reflectance and microhardness measurement. Later sections discuss the interpretation of textural intergrowths of ore minerals and the determination of their paragenesis, along with the examination of coexisting minerals for determining their physio-chemical conditions of formation. Appendices contain the data necessary to identify approximately 100 of the more common ore minerals and those frequently encountered by the professional scientist.

Download or read book Synopsis of Geologic and Hydrologic Results written by and published by . This book was released on 1961 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Determination of Epicenters written by and published by . This book was released on 2002 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Suggestions for Prospecting written by Geological Survey (U.S.) and published by . This book was released on 1967 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: