{"id":2356,"date":"2019-10-02T19:50:21","date_gmt":"2019-10-02T19:50:21","guid":{"rendered":"https:\/\/www.gsnv.org\/shop\/the-lithospheric-setting-of-carlin-type-deposits-an-important-clue-to-their-genetic-associations-and-deposit-associates\/"},"modified":"2020-02-24T18:17:13","modified_gmt":"2020-02-24T18:17:13","slug":"the-lithospheric-setting-of-carlin-type-deposits-an-important-clue-to-their-genetic-associations-and-deposit-associates","status":"publish","type":"product","link":"https:\/\/www.gsnv.org\/shop\/the-lithospheric-setting-of-carlin-type-deposits-an-important-clue-to-their-genetic-associations-and-deposit-associates\/","title":{"rendered":"The lithospheric setting of Carlin-type deposits: An important clue to their genetic associations and deposit associates"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Carlin-type deposits have traditionally been regarded as a deposit class for which<br \/>\nworld-class examples are largely restricted to northern Nevada, although some global<br \/>\nanalogs have been suggested. Economic geology research, which has been largely<br \/>\nbased on the deposits themselves, has not delivered an unequivocal genetic model,<br \/>\nalthough a late Eocene (ca 42\u201336 Ma) timing of mineralization, coeval with intrusive<br \/>\nmagmatism in the broader district, is well established.<br \/>\nAt the continental or lithospheric scale, the \u201cunique\u201d Carlin-type deposits occupy<br \/>\na similar, but anomalous tectonic niche to the zoned Bingham Canyon porphyry system<br \/>\nand the intrusion-related gold deposits (IRGDs) of the Tombstone-Tungsten belt,<br \/>\nYukon. Unlike most epigenetic gold deposits in metamorphic belts, all of these metallogenic<br \/>\ndistricts are hosted in previously thrusted and folded, miogeosynclinal, calcareous<br \/>\nPaleozoic to Mesozoic sedimentary sequences above Precambrian subcontinental<br \/>\nlithospheric mantle (SCLM). In addition, the districts share a similar relative tectonic<br \/>\ntiming, with mineralizing events taking place at the onset of regional extension, immediately<br \/>\nfollowing the cessation of protracted compression. Both the zoned Bingham<br \/>\ndistrict and zoned Tombstone-Tungsten belt owe their metal endowment to the intrusion<br \/>\nof anomalous magmas, involving a component of basic alkaline melt from metasomatically-<br \/>\nenriched domains within the SCLM. Avariety of evidence suggests this is<br \/>\nalso a permissive model for Carlin-type deposits due to their broad spatial and temporal<br \/>\nrelationship to magmatism in the same terrane, if not in the immediate ore environment.<br \/>\nIt is also consistent with the lack of any other geologically reasonable<br \/>\nthermal engine to drive the hydrothermal systems given deposit control by compressional<br \/>\nstructural geometries related to earlier orogeny, insignificant to no coeval volcanism,<br \/>\nand minimal extension in Carlin-type districts relative to surrounding areas<br \/>\nof the Basin and Range Province.<\/p>\n","protected":false},"featured_media":4766,"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\/2356"}],"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=2356"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/media\/4766"}],"wp:attachment":[{"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/media?parent=2356"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/product_cat?post=2356"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.gsnv.org\/wp-json\/wp\/v2\/product_tag?post=2356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}