Eocene magmatism: The heat source for Carlin-type gold deposits of northern Nevada

Abstract

Research Article| December 01, 1998 Eocene magmatism: The heat source for Carlin-type gold deposits of northern Nevada Christopher D. Henry; Christopher D. Henry 1Nevada Bureau of Mines and Geology, University of Nevada, Reno, Nevada 89557 Search for other works by this author on: GSW Google Scholar David R. Boden David R. Boden 21445 High Chaparral Drive, Reno, Nevada 89511 Search for other works by this author on: GSW Google Scholar Author and Article Information Christopher D. Henry 1Nevada Bureau of Mines and Geology, University of Nevada, Reno, Nevada 89557 David R. Boden 21445 High Chaparral Drive, Reno, Nevada 89511 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1998) 26 (12): 1067–1070. https://doi.org/10.1130/0091-7613(1998)026<1067:EMTHSF>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Christopher D. Henry, David R. Boden; Eocene magmatism: The heat source for Carlin-type gold deposits of northern Nevada. Geology 1998;; 26 (12): 1067–1070. doi: https://doi.org/10.1130/0091-7613(1998)026<1067:EMTHSF>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The origin of Carlin-type or sediment-hosted, disseminated gold deposits of the Great Basin, the major source of gold in the United States, is poorly understood. We propose that Eocene magmatism was the heat source that drove the hydrothermal systems that generated these deposits in the Carlin trend and Independence Mountains in northern Nevada. This interpretation is based on a strong spatial and temporal association of Eocene intrusive-volcanic centers with the gold deposits of this region. Our new work and published 40Ar/39Ar dates indicate that magmatism was particularly intense between 39 and 40 Ma throughout northeastern Nevada, especially in and around the area of gold deposits. Carlin-type deposits may have formed preferentially during Eocene magmatism because it was (1) more intense in the area than other magmatic episodes, (2) somehow compositionally distinct, or (3) accompanied by extension that promoted hydrothermal flow. However, large-scale extension does not appear to have been a factor in generating Carlin-type deposits. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.