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词条 Chonolith
释义

  1. See also

  2. References

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).[1]

Examples are:

  • the Spring Gulch chonolith composed of aplite, in Elko County in Nevada, USA.[2]
  • the Nebo-Babel chonolith of gabbronorite in the West Musgrave area of Western Australia.[3]
  • chonoliths in Norilsk, Russia.[4]
  • a chonolith of dacite of Pleistocene age in Chinkuashih, Taiwan.[5]
  • a chonolith of Cretaceous age in the Cortez Mountains, near Carlin in Nevada, USA.[6]
  • a chonolith of andesite near Shavano in Colorado, USA.[7]

See also

  • Cactolith, a laccolith in the Henry Mountains region, Utah

References

1. ^Lahee, F. H. (1961) Field Geology, 6th edition, McGraw-Hill, page 143
2. ^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.
3. ^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
4. ^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
5. ^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.
6. ^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.
7. ^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.
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3 : Igneous rocks|Igneous petrology|Intrusions

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