{"id":2368,"date":"2019-10-02T19:51:01","date_gmt":"2019-10-02T19:51:01","guid":{"rendered":"https:\/\/www.gsnv.org\/shop\/precious-metals-deposits-of-nevada\/"},"modified":"2020-02-24T18:17:16","modified_gmt":"2020-02-24T18:17:16","slug":"precious-metals-deposits-of-nevada","status":"publish","type":"product","link":"https:\/\/www.gsnv.org\/shop\/precious-metals-deposits-of-nevada\/","title":{"rendered":"Precious metals deposits of Nevada"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>The Nevada Bureau of Mines and Geology (NBMG) has developed a database of<br \/>\nknown precious metal deposits in Nevada reported in the post-1930 literature. Among<br \/>\nthe data included, when reported, are resources, reserves, production, deposit type,<br \/>\nhost rock, Au\/Ag ratio, age of mineralization, and references. The deposits were plotted<br \/>\non 7.5-minute topographic maps from the best available information, and the locations<br \/>\nwere then measured in UTMs. The data were entered into a dBase-compatible<br \/>\ndatabase, which is amenable to a number of GIS programs. An original gold endowment<br \/>\nwas calculated for many of the deposits using the available reserve, resource,<br \/>\nand production data. A series of maps is produced to demonstrate the usefulness of<br \/>\nthese data. Maps plotting deposit type and deposit type\/host rock show the usual distribution<br \/>\nwith the bulk of the Carlin-type deposits confined to the northeastern third<br \/>\nof the state and the vein and stockwork type deposits more scattered but mostly concentrated<br \/>\nin the western part of the state. These maps show the usual Carlin-type<br \/>\ndeposit trends\u2014Carlin, Getchell, Independence, and Battle Mountain-Eureka. They<br \/>\nalso show other apparent trends such as a north-south trend of the Bald Mountain,<br \/>\nAlligator Ridge, and Yankee sediment-hosted gold deposits, a north-south trend of<br \/>\nmostly medium to large epithermal deposits between Goldfield and Round Mountain,<br \/>\nand an east-west trend of mostly small epithermal deposits across central Mineral<br \/>\nCounty. Most of the deposits are older than the Walker Lane right-lateral strike-slip<br \/>\ndisplacement and Basin and Range extension, suggesting some of the present-day<br \/>\ntrends may change if these features were factored out. The maps show that sedimenthosted<br \/>\ndeposits are more concentrated in the eastern part of the state, as would be<br \/>\nexpected because the east is predominantly sedimentary and west is predominantly<br \/>\nvolcanic. Six out of eight of the over-10-million-ounce gold deposits are Carlin-type<br \/>\ndeposits and seven of the deposits are located on the Carlin, Getchell, and Battle<br \/>\nMountain-Eureka trends. The remaining one is the volcanic-hosted Round Mountain<br \/>\ndeposit. Although important in their time, none of the pre-1930 districts, such as the<br \/>\nsilver-gold deposits of the Comstock Lode and Tonopah and gold-silver deposits of<br \/>\nGoldfield, individually yielded as much as 10 million ounces of gold. Total silver production<br \/>\nfrom the Comstock and Tonopah, however, make these major districts even<br \/>\nby today\u2019s standards.<\/p>\n","protected":false},"featured_media":4680,"comment_status":"closed","ping_status":"closed","template":"","meta":{"pmpro_default_level":""},"product_cat":[154],"product_tag":[],"_links":{"self":[{"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/product\/2368"}],"collection":[{"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/comments?post=2368"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/media\/4680"}],"wp:attachment":[{"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/media?parent=2368"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/product_cat?post=2368"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/product_tag?post=2368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}