Download or read book Epithermal Gold Mineralization Wenatchee and Liberty Districts Central Washington written by Jacob Margolis and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume was prepared for a field trip sponsored by the Society of Economic Geologists in conjunction with the 1994 annual meeting of the Geological Society of America held in Seattle, Washington. The field trip examines the surface geology, hydrothermal alteration, and structure of the Liberty-Wenatchee gold districts, focusing on the latter, the site of Asamera Minerals (U.S.)'s Cannon underground mine.
Download or read book Epithermal Gold Mineralization Wenatchee and Liberty Districts Central Washington written by Society of Economic Geologists (U.S.). Field Conference and published by . This book was released on 1994 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Washington Geology written by and published by . This book was released on 1995 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epithermal Gold Mineralization Related to Caldera Volcanism at the Atlanta District East central Nevada written by René D. LaBerge and published by . This book was released on 1994 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Volcanoes to Vineyards written by Jim E. O'Connor and published by Geological Society of America. This book was released on 2009 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume contains guides for 34 geological field trips offered in conjunction with the October 2009 GSA Annual Meeting in Portland, Oregon. Showcasing the region's geological diversity, the peer-reviewed papers included here span topics ranging from accreted terrains and mantle plumes to volcanoes, floods, and vineyard terroir. Locations visited throughout Oregon, Washington, and Idaho encompass Astoria to Zillah. More than just a series of maps, the accompanying descriptions, observations, and conclusions offer new insights to the geologic processes and history of the Pacific Northwest - insights that will inspire readers to put their boots on the evidence as they develop their own understanding of this remarkable and dynamic corner of the world."--Publisher's description.
Download or read book Bibliography and Index of the Geology and Mineral Resources of Washington written by and published by . This book was released on 1996 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin Division of Geology and Earth Resources written by Washington (State). Division of Geology and Earth Resources and published by . This book was released on 1994 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Society of Economic Geologists Inc written by Lewis B. Gustafson and published by . This book was released on 1997 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Bibliography and Index of the Geology and Mineral Resources of Washington 1991 1995 written by and published by . This book was released on 1996 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epithermal and Hot spring Gold silver Deposits Republic Mining District Ferry County Washington written by Eric R. Braun and published by . This book was released on 1989 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epithermal Gold Mineralization of the Circum Pacific written by J. W. Hedenquist and published by Elsevier Publishing Company. This book was released on 1990-01-01 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trials and Tribulations of Life on an Active Subduction Zone written by Shahin Dashtgard and published by Geological Society of America. This book was released on 2014-10-01 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Nine field guides explore diverse topics such as urban geology and geoheritage in Metro Vancouver, the processes and postglacial adjustments of the Cordilleran Ice Sheet, and human interaction and adaptation to geological and climate changes in British Columbia"--
Download or read book Bulletin written by Washington (State). Division of Geology and Earth Resources and published by . This book was released on 1994 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SEG Newsletter written by and published by . This book was released on 1997 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epithermal gold mineralization in the Velvet District Pershing County Nevada written by Wilmer Dallam Masterson and published by . This book was released on 1981 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold mineralization in the Velvet District occurs in an eastward dipping sequence of Miocene tuffs, flows, and tuffaceous sediments on the west flank of the Trinity Range in Pershing County, Nevada. Numerous north-northeast trending normal faults extend through the district. These faults served as conduits for ascending hydrothermal fluids which deposited gold and silver along poorly defined zones of brecciation, argillic alteration, and quartz veining. Concentration of gold does not exceed a few parts per million and is highest in zones of intersecting fractures. The hydrothermal solutions which deposited the gold were the near-surface expression of a larger geothermal system. Meteoric water leached gold, silver, arsenic, antimony, and other metals from the surrounding rock as it percolated downward towards a deep heat source. The hot fluids escaped upward along fracture zones and precipitated precious metals in veins near the surface. Fluid inclusion studies indicate that the quartz veins were deposited in the temperature range 218-264° C from fluids which had salinities equivalent to 0.2-0.8 weight percent NaCl. [delta]180 of quartz veins varies from -2.5 to +6.7 %, and the low values appear to define a zone of concentrated fluid flow and potential subsurface mineralization in the southeast part of the district. The lowest value, -2.5 %, indicates that the ore fluid must have been Tertiary meteoric water with [delta]180 equal to -13 %. Reaction of hydrothermal fluids with wall rock produced an alteration assemblage of illite-kaolinite-quartz which underlies most of the shafts, adits, and prospect pits in the district. The illite-kaolinite-quartz assemblage is laterally gradational into a kaolinite (or dickite)-smectite-alunite-quartz assemblage which is indicative of lower temperatures. Pyrite and other sulfides are rare, but limonite and jarosite are widespread in surface outcrops. Alteration of tuffs released abundant silica which precipitated as quartz veins and discharged in hot springs at the bottom of lakes, where thick deposits of diatomaceous earth accumulated.
Download or read book Assessment Method for Epithermal Gold Deposits in Northeast Washington State Using Weights of evidence GIS Modeling written by David Everett Boleneus and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
