Early Devonian geothermal systems in northeast Scotland: Exploration targets for epithermal gold

Research Article| June 01, 1989 Early Devonian geothermal systems in northeast Scotland: Exploration targets for epithermal gold Keith Nicholson Keith Nicholson 1Geothermal Institute and Epithermal Mineralisation Research Unit, University of Auckland, Private Bag, Auckland, New Zealand Search for other works by this author on: GSW Google Scholar Geology (1989) 17 (6): 568–571. https://doi.org/10.1130/0091-7613(1989)0172.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Keith Nicholson; Early Devonian geothermal systems in northeast Scotland: Exploration targets for epithermal gold. Geology 1989;; 17 (6): 568–571. doi: https://doi.org/10.1130/0091-7613(1989)0172.3.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 Early Devonian geothermal activity is recognized in northeast Scotland by the remnants of silica sinter, a hot-spring manganese deposit, an area of steam alteration, and hydrothermal eruption breccias. At least five systems were active at this time, three of which are located on or near the intersection of major faults and lineaments. Two deposits can be dated as Early Devonian, whereas others show a spatial relation to 408 Ma Caledonian granitoids—the proposed heat sources for the geothermal systems. Fault zones active at this time provided channel ways for fluids in the convecting systems. The shallow sections of these systems have been preserved in the Arndilly, Dalroy, Lecht, and Rhynie areas, which is encouraging for gold prospecting. Six targets for epithermal gold exploration are identified- the four areas named above and two areas at the intersection of major faults and lineaments. 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.