In geology, a stock is an igneous intrusion that has a surface exposure of less than 100 square kilometres (40 sq mi), differing from batholiths only in being smaller. A stock has a discordant relationship with the rocks that it intrudes. Many stocks are cupolas of hidden batholiths. Some circular or elliptical stocks may be volcanic plugs, which fill the vents of now extinct volcanoes. A boss is a small stock.
Examples
- the Alta and Clayton Peak stocks (composed of granodiorite), near Park City, Utah
- the Hellroaring Creek and Salal Creek stocks (of granite-granodiorite and quartz monzonite, respectively) in British Columbia, Canada
- the Céret stock (of gabbro and diorite) in Pyrénées-Orientales, France
- the Parashi stock (of tonalite) in La Guajira Department, Colombia
- stocks of syenite in the Caldera de Tejeda on Gran Canaria
- Ailsa Craig granitic boss, which forms a volcanic plug, in Scotland
References
- Gabler, R.E. et al. (2009) Physical Geography (9th edition), Cengage Learning Inc., page 390.
- ^ Whittow, John (1984). Dictionary of Physical Geography. London: Penguin, 1984, p. 513. ISBN 0-14-051094-X.
- Albert, Fay H. (1947). A Glossary of the Mining and Mineral Industry. Washington, D.C.: Government Printing Office. p. 200.
- Kikauka, Andris (1996). Geological, Geochemical, and Diamond Drilling Report on the Salal 1-6 Claims, Pemberton, B.C. (Report). Sooke, British Columbia: Geo-Facts. p. 7.
- ^ Gillen, C. (2003). Geology and Landscapes of Scotland (2nd edition). Dunedin. ISBN 978-1780460093.
- Coash, John R. (1967). "Geology of the Mount Velma Quadrangle, Elko County, Nevada". Nevada Bureau of Mines Bulletin. 68: 16.
- Cook, Stephen J.; Bowman, John R. (1994). "Contact metamorphism surrounding the Alta stock: Thermal constraints and evidence of advective heat transport from calcite + dolomite geothermometry" (PDF). American Mineralogist. 79: 513–525.
- S.G. Soloviev (2011). Compositional Features and Rare Metal Mineralization of the Hellroaring Creek Stock, Southeastern British Columbia (NTS 082F/09) – Geological Fieldwork 2011, Paper 2012-1 (PDF). British Columbia Ministry of Energy, Mines and Petroleum Resources. pp. 181–198.
- Mustard, D. K.; Campbell, C. B. (1971). Salal Creek Molybdenum Property (Report). Government of British Columbia. pp. 6, 7, 8, 9.
- Aguilar, C.; Liesa, M.; Reche, J.; Powell, R. (2016). "Fluid-fluxed melting and melt loss in a syntectonic contact metamorphic aureole from the Variscan eastern Pyrenees". Journal of Metamorphic Geology. 34 (4): 379–400. doi:10.1111/jmg.12187. hdl:2445/181649.
- Martínez, Lina Fernanda; Zuluaga C., Carlos A. (2010). "Thermal modeling of pluton emplacement and associated contact metamorphism: Parashi stock emplacement in the Serranía de Jarara (Alta Guajira, Colombia)". Earth Sciences Research Journal. 14 (2).
- Pérez Torrado, F.J.; Carracedo, J.C. (2002). "Cenozoic volcanism II - the Canary Islands – Gran Canaria". In Gibbons, W.; Moreno, T. (eds.). The Geology of Spain. The Geological Society. p. 448. ISBN 1-86239-110-6.
.jpg){kind=small} | This article about igneous petrology is a stub. You can help Misplaced Pages by expanding it. |