Download or read book Structural History of the Bald Mountain Mining District Nevada USA written by David Paul Ryan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bald Mountain Mining district, like much of central Nevada, has experienced a complex deformation history. The mining district is considered here as a southern extension of the well-studied Carlin trend of gold deposits to the north. In order to gain a better understanding of how the Bald Mountain Mining District structural style relates to other structural models developed to the north in the Carlin trend, I completed a mapping and structural domain analysis in the district, with a focus on the North Mooney basin area where a high spatial concentration of Carlin-type gold deposits occur. The identification of structural domain boundaries and classes utilized a compiled database of historical mapping and structural measurements along with new mapping and cross section work. The domain analysis revealed four different classes of structural domains, of which monoclinal folds were determined to play the strongest role in gold mineralization. Using the structural domain designations in addition to an analysis of the geometry of commonly occurring structures, I identified five structural styles at Bald Mountain: 1) kilometerscale NNE- to NE-striking reverse faults and NNE- to NE-trending open to overturned folds; 2) kilometer-scale WNW- to NW-striking normal faults with oblique separation; 3) decameter- to kilometer-scale NNW-trending open folds, NNW-striking reverse faults, and N-striking thrusts; 4) meter- to decameter-scale NW-trending tight to close folds; 5) meter- to kilometer-scale N- to NE-striking normal faults. Evidence for structural reactivation and observations of the crosscutting relationships between the five structural styles inform a relative sequence of deformational events at Bald Mountain. These five structural styles were then considered with respect to regional tectonic events and their kinematic and timing relationships in order to assign deformational phases: 1) NNE- to NE-striking reverse faults and NNE- to NE-trending open to overturned folds associated with episodic ESE- to SE-directed shortening through the Paleozoic to early Mesozoic; 2) WNW- to NW-striking strike-slip and tear faulting in the Late Jurassic to Cretaceous; 3) NNW-trending open folds, NNW-striking reverse faults, and N-striking thrusts with ENE-directed shortening through the Late Cretaceous to Eocene; 4) NW-trending tight to close folds with sinistral tranpression on WNW- to NW-striking faults during a mid-Eocene event associated with exhumation of the Ruby Mountain core complex; 5) N- to NE-striking normal faulting with NWSE directed Basin and Range extension from the Miocene. The five structural styles were then compared to previous work including structural models developed in north-central Nevada. Deformation events are similar between the northern Carlin trend and Bald Mountain. Primary differences between the Bald Mountain structural history and the structural models in the northern Carlin trend include the documented Eocene folding event, and a major WNW-striking basement-seated feature with parallel structures that have a significant strike-slip component and partition Bald Mountain into discrete kilometer scale structural domains. Further work to add value to targeting and exploration should place an emphasis on identifying major WNW- to NW-striking faults and understanding their kinematics. Knowledge of these structural boundaries along with how structural styles change across them will help to constrain targeting and lend insight to the significant role that strike-slip faulting played in the Bald Mountain Mining District's complex deformational history.

Download or read book Mines of Eastern Nevada written by J. M. Hill and published by . This book was released on 2014-10-02 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the mines of Cherry Creek, Ely Range and other Eastern Nevada Districts, including Gold Butte, Atlanta, Bristol, Troy, Patterson, Ruby Range, Mud Springs, Spruce Mountain, Mizpah, Kinsley, Toano Range, Tecoma, Ravenswood, Bald Mountain, Granite, Hunter, Ward, Aurum, Duck Creek, and Taylor. This book is in part a reproduction of the 1916 US Geological Survey Bulletin 648 entitled "Notes on Some Mining Districts in Eastern Nevada." Reprinted in conjunction with Nevada Publications by Sylvanite Publishing.

Download or read book Mining Districts and Mineral Resources of Nevada written by Francis Church Lincoln and published by . This book was released on 1923 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Outline of Nevada Mining History written by Nevada Bureau of Mines and published by . This book was released on 1964 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology and Mineral Deposits of the National Mining District Nevada written by Waldemar Lindgren and published by . This book was released on 1915 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Great Basin Evolution and Metallogeny written by Geological Society of Nevada. Symposium and published by DEStech Publications, Inc. This book was released on 2011 with total page 601 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 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Geology of Big Bald Mountain White Pine County Nevada written by Arthur William Ravenscroft and published by . This book was released on 1974 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SP015 Outline of Nevada Mining History written by and published by NV Bureau of Mines & Geology. This book was released on with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Jarbidge Mining District Nevada written by Frank Charles Schrader and published by . This book was released on 1923 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1979 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stratigraphy and Structure in the Belmont Mining District Nye County Nevada written by Joseph M. Kurtak and published by . This book was released on 1975 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SP008 Nevada Mining and You written by and published by NV Bureau of Mines & Geology. This book was released on 1985 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book University of Nevada Bulletin written by Nevada Bureau of Mines and published by . This book was released on 1904 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book B033 Goldbanks mining district Pershing County Nevada written by and published by NV Bureau of Mines & Geology. This book was released on with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Contact Mining District Nevada written by Frank Charles Schrader and published by . This book was released on 1935 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Bull Frog Mining District of Nevada written by Us Department of Interior and published by CreateSpace. This book was released on 2014-10-16 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mining historian Kerby Jackson introduces us to a classic mining work in this important re-issue of “Ore Deposits and Geology of the Bull Frog District of Nevada”. Unavailable since 1910, this publication was originally compiled by the United States Department of Interior.This volume also includes important insights into the geologic formations, faults and other aspects of economic geology in this Nevada mining district. Of particular interest are the fine details on many mines in the area, including their locations, histories, development and mineralization. Some of the mines featured include the National Bank Mine, Providence, Gibraltor, Tramps, Denver, Original Bullfrog, Gold Bar, Mayflower, Homestake-King and other mines and prospects. Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As such, some type characters and images might suffer from slight imperfections or minor shadows in the page background.