Download or read book Genesis of Gold Deposits at the Little Squaw Mines Chandalar Mining District Alaska written by Kathryn King Ashworth and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Little Squaw gold mines are located in the Chandalar Mining District, which is in the Brooks Range, 200 miles north of Fairbanks, Alaska. Country rock in the Little Squaw area consists of Devonian clastic and volcanic rocks which were subjected to two periods of upper greenschist facies metamorphism during the Cretaceous. A penetrative schistosity developed during the first metamorphic event, and thrust faulting and the development of a non-penetrative cleavage occurred during the second. Gold-bearing quartz veins in the Little Squaw area crystallized along high angle normal faults which post date thrust faulting and cross-cut the non-penetrative cleavage. Data obtained from the study of fluid inclusions from the gold-bearing quartz were used to determine physical and chemical conditions of ore deposition. It was found that the gold-bearing quartz veins in the Little Squaw area crystallized at about 275°C and 825 bars from boiling fluids containing an average of .18 mole % CO2. Thermodynamic calculations suggest Au(HS)2- was the predominant gold transporting agent and transport as AuCl2- was insignificant. The presence of arsenopyrite, stibnite, and CO2-rich fluid with the gold suggests that arsenothio, antimonothio, and carbonate complexing may have contributed to the transport of gold. A drop from lithostatic to hydrostatic pressure, resulting from tectonic uplift and hydraulic fracturing, induced boiling of the hydrothermal fluids. The physiochemical changes that took place during boiling caused gold to precipitate. The search for additional ore shoots should center on locating the zone of boiling within post- metamorphic quartz-bearing structures in the Little Squaw area.

Download or read book Summary File Report Mikado Lode Chandalar Mining District Alaska written by Mark S. Robinson and published by . This book was released on 1977 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report on the Little Squaw Area of the Chandalar Mining District written by Irving McKenny Reed and published by . This book was released on 1930 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reported Mining Activities in the Chandalar District Alaska written by J. C. Roehm and published by . This book was released on 1949 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Territorial Department of Mines Report written by Irving McKenny Reed and published by . This book was released on 1929 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analytical Results Geochemical Signatures and Sample Locality Map of Lode Gold Placer Gold and Heavy mineral Concentrates from the Koyukuk Chandalar Mining District Alaska written by Elwin L. Mosier and published by . This book was released on 1986 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Investigations in the Koyukuk Mining District Northern Alaska Summaries of mines prospects and mineral occurrences in the Melozitna Survey Pass Tanana and Wiseman quadrangles written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Koyukuk Chandalar Region Alaska written by Alfred Geddes Maddren and published by . This book was released on 1913 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Alaskan Gold Mine written by Leland Henry Carlson and published by . This book was released on 1951 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book History of the Caro Coldfoot Trail RST 262 and the Coldfoot Chandalar Trail RST 9 written by Rolfe G. Buzzell and published by . This book was released on 2007 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Report Alaska Division of Mines and Minerals written by and published by . This book was released on 1971 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology and Geochemistry of the Chandalar Area Brooks Range Alaska written by E. R. Chipp and published by . This book was released on 1970 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report of a study undertaken to relate the mineral deposits in the Chandlar area (a well-known gold district in the Brooks Range of northern Alaska, 200 miles north of Fairbanks) to local and regional structures.

Download or read book Gold in Alaska written by and published by . This book was released on 1997 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Commissioner of Mines written by Alaska. Department of Mines and published by . This book was released on 1935 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alaska s Mineral Industry written by and published by . This book was released on 1997 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the Mine Inspector to the Governor of Alaska written by Alaska. Mine Inspector and published by . This book was released on 1953 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Sitka Mining District Alaska written by Adolph Knopf and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.