Download or read book A Statistical Analysis of Chemical and Mineralogic Data from the Tertiary Kootznahoo Formation in Southeastern Alaska with Emphasis of Uranium and Thorium written by Kendell A. Dickinson and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Bulletin written by and published by . This book was released on 1983 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology and Geochemistry of Gold Deposits of the Big Canyon Area El Dorado County California written by John Thomas Nash and published by . This book was released on 1989 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diagenesis and Uranium Mineralization of the Lower Tertiary Kootznahoo Formation in the Northern Part of Admiralty Trough Southeastern Alaska written by Kendell A. Dickinson and published by . This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: he Lower Tertiary Kootznahoo Formation, a clastic unit, crops out in scattered areas in the Admiralty Trough, southeastern Alaska. The formation consists mainly of arkosic sandstone, conglomerate, and lesser amounts of coal and shale. Samples were collected and outcrops described from three main outcrop localities in an area beginning in the Kootznahoo Inlet area on the west-central side of Admiralty Island and extending southward to the Keku Strait area between Kuiu and Kupreanof Islands. X-ray diffraction, optical mineralogy, scanning electron micrographs, and stable isotope and other chemical analyses were utilized during sample studies. Three stagtts of diagenesis were recognized. Stage I occurred under the conditions of nonmarine fluvial and paludal deposition and was characterized by development of sideritic concretions and cement. Stage II was characterized by local uplift of the formation and the entrance of oxygenated meteoric ground water, which resulted primarily in kaolinization. Stage Ill was characterized by the deposition of calcite and dolomite apparently in response to subsidence and the invasion of the unit by ground water of marine origin. Uranium mineralization associated with carbonaceous material has been found only where diagenesis to stage II has occurred. Scattered carbonized wood fragments enriched to as much ·as 0.2% uranium were found in a sandstone bed in the Kootznahoo Formation near Kadake Bay on Kuiu Island. The source of the uranium appears to be a heavy-mineral zone within the sandstone. Parts of the Kootznahoo where stage II diagenesis has occurred are favorable uranium exploration targets, but exposures are poor and the probability of finding commercial size deposits is low.
Download or read book 1990 Annual Report on Alaska s Mineral Resources written by and published by . This book was released on 1990 with total page 84 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 1984 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 1989 Exclusive Economic Zone Symposium on Mapping and Research written by and published by . This book was released on 1990 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Bulletin written by Bonnie L. Crysdale and published by . This book was released on 1983 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1989 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 1989 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1989-07 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1989 with total page 1676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Zentralblatt f r Mineralogie written by and published by . This book was released on 1990 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Publications in Natural History written by and published by . This book was released on 1989 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1989-11 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to USGS Publications written by and published by . This book was released on 1998 with total page 1660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
