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A chonolith is an igneous rock intrusion of irregular shape. A chonolith has a demonstrable base, which is absent in other types of irregularly-shaped intrusions (batholiths, stocks and bosses).〔Lahee, F. H. (1961) ''Field Geology'', 6th edition, McGraw-Hill, page 143〕 Examples are: * the Spring Gulch chonolith composed of aplite, in Elko County in Nevada, USA.〔Ketner, K. B. et al., (1998) ''An Outline of Tectonic, Igneous, and Metamorphic Events in the Goshute-Toano Range Between Silver Zone Pass and White Horse Pass, Elko County, Nevada: A History of Superposed Contractional and Extensional Deformation'', U.S. Geological Survey Professional Paper 1593, page 10.〕 * the Nebo-Babel chonolith of gabbronorite in the West Musgrave area of Western Australia.〔Seat, Z. et al. (2007) ''Architecture and emplacement of the Nebo–Babel gabbronorite-hosted magmatic Ni–Cu–PGE sulphide deposit, West Musgrave, Western Australia'', Mineralium Deposita, volume 42 pages 551-581, DOI: 10.1007/s00126-007-0123-9〕 * chonoliths in Norilsk, Russia.〔Yakubchuk, A. and Nikishin, A. M. (2004) ''Noril’sk–Talnakh Cu–Ni–PGE deposits: a revised tectonic model'', Mineralium Deposita, volume 39, pages 125-142, DOI: 10.1007/s00126-003-0373-0〕 * a chonolith of dacite of Pleistocene age in Chinkuashih, Taiwan.〔Folinsbee, R. E. et al. ''Chinkuashih - a Gold-Pyrite-Enargite-Barite Hydrothermal Deposit in Taiwan'' in Doe, B.R. and Kingsley Smith, D. (editors) (1972) ''Studies in Mineralogy and Precambrian Geology'', Geological Society of America Memoir 135, page 333.〕 * a chonolith of Cretaceous age in the Cortez Mountains, near Carlin in Nevada, USA.〔Muffler, L. J. P. (1962) ''Forcible Emplacement of Epizonal Plutons in the Cortez Mountains, North-Central Nevada'' in ''Abstracts for 1962'', Geological Society of America Special Paper 73, page 208.〕 * a chonolith of andesite near Shavano in Colorado, USA.〔Dings, M. G. and Robinson, C. S. (1957) ''Geology and Ore Deposits of the Garfield Quadrangle, Colorado'', U.S. Geological Survey Professional Paper 289, page 24.〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chonolith」の詳細全文を読む スポンサード リンク
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