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Coordinates: 57°18′29″N 130°49′13″W / 57.30806°N 130.82028°W / 57.30806; -130.82028
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==Geology==
==Geology==
Nahta Cone is the southernmost occurrence of the [[Big Raven Formation]], the youngest and least voluminous [[geological formation]] of the [[Mount Edziza volcanic complex]] which has been the focus of episodic [[volcanism]] for the last 7.5 million years.{{sfn|Souther|1992|p=214}}<ref>{{cite thesis|last1=Edwards|first1=Benjamin Ralph|degree=PhD|title=Field, kinetic, and thermodynamic studies of magmatic assimilation in the Northern Cordilleran Volcanic Province, northwestern British Columbia|publisher=[[University of British Columbia]]|year=1997|pages=10, 11|isbn=0-612-25005-9}}</ref><ref name="LD">{{cite book|last1=Wood|first1=Charles A.|last2=Kienle|first2=Jürgen|url=https://books.google.com/books?id=eyDRib-FJh4C|title=Volcanoes of North America: United States and Canada|year=1990|publisher=[[Cambridge University Press]]|page=124|isbn=0-521-43811-X}}</ref>
Nahta Cone is the southernmost occurrence of the [[Big Raven Formation]], the youngest and least voluminous [[geological formation]] of the [[Mount Edziza volcanic complex]] which has been the focus of episodic [[volcanism]] for the last 7.5 million years.{{sfn|Souther|1992|p=214}}<ref>{{cite thesis|last1=Edwards|first1=Benjamin Ralph|degree=PhD|title=Field, kinetic, and thermodynamic studies of magmatic assimilation in the Northern Cordilleran Volcanic Province, northwestern British Columbia|publisher=[[University of British Columbia]]|year=1997|pages=10, 11|isbn=0-612-25005-9}}</ref><ref name="LD">{{cite book|last1=Wood|first1=Charles A.|last2=Kienle|first2=Jürgen|url=https://books.google.com/books?id=eyDRib-FJh4C|title=Volcanoes of North America: United States and Canada|year=1990|publisher=[[Cambridge University Press]]|page=124|isbn=0-521-43811-X}}</ref> The main [[volcanic rock]] comprising Nahta Cone is [[hawaiite]] containing [[phenocryst]]s of [[olivine]] and [[plagioclase]].<ref name="Souther"/>

hawaiite


==Name and etymology==
==Name and etymology==

Revision as of 22:09, 29 August 2024

Nahta Cone
A dark-coloured volcanic cone with a summit crater rising above a sparsely snow-covered rocky plateau.
Nahta Cone from the east
Highest point
Elevation1,670 m (5,480 ft)[1][a]
Coordinates57°18′29″N 130°49′13″W / 57.30806°N 130.82028°W / 57.30806; -130.82028[2]
Geography
Nahta Cone is located in British Columbia
Nahta Cone
Nahta Cone
Location in British Columbia
CountryCanada[3]
ProvinceBritish Columbia[3]
DistrictCassiar Land District[2]
Protected areaMount Edziza Provincial Park[2]
Parent rangeTahltan Highland[3]
Topo mapNTS 104G7 Mess Lake[2]
Geology
Mountain typeCinder cone[4]
Type of rockHawaiite[5]
Last eruptionHolocene age[4]
Map Location in Mount Edziza Provincial Park

Nahta Cone is a small cinder cone in Cassiar Land District of northwestern British Columbia, Canada.

Geography

Nahta Cone is located in Cassiar Land District of northwestern British Columbia, Canada, near the northern edge of the Arctic Lake Plateau.[3][6][7] It has an elevation of 1,670 metres (5,480 feet) and rises about 60 metres (200 feet) above the glacially scored surface of the plateau to a circular crater breached on the east.[1][6] The cone is surrounded by Mess Creek valley to the west, Wetalth Ridge and Little Arctic Lake to the east, Tadekho Hill to the northeast, Exile Hill to the north and Arctic Lake to the south.[3] Between Nahta Cone and Tadekho Hill is Nahta Creek which flows west through a valley into Mess Creek, a northwest-flowing tributary of the Stikine River.[5][8]

Nahta Cone lies at the southwestern corner of Mount Edziza Provincial Park about 70 kilometres (43 miles) south-southeast of the community of Telegraph Creek.[3] With an area of 266,180 hectares (657,700 acres), Mount Edziza Provincial Park is one of the largest provincial parks in British Columbia and was established in 1972 to preserve the volcanic landscape.[9][10] It also includes the Spectrum Range to the northeast and Mount Edziza further to the north which are separated by the broad east–west valley of Raspberry Pass.[10][11] Mount Edziza Provincial Park is in the Tahltan Highland, a southeast-trending upland area extending along the western side of the Stikine Plateau.[3][12]

Geology

Nahta Cone is the southernmost occurrence of the Big Raven Formation, the youngest and least voluminous geological formation of the Mount Edziza volcanic complex which has been the focus of episodic volcanism for the last 7.5 million years.[13][14][15] The main volcanic rock comprising Nahta Cone is hawaiite containing phenocrysts of olivine and plagioclase.[5]

Name and etymology

The name of the cone was adopted 2 January 1980 on the the National Topographic System map 104G/7 after being submitted to the BC Geographical Names office by the Geological Survey of Canada. It means seven in the Tahltan language, referring to the last seven survivors of the Wetalth people who were outcasted or exiled from the Tahltans in times past.[2] Several other features on the Arctic Lake Plateau such as Wetalth Ridge, Outcast Hill, Exile Hill and Tadekho Hill also have names with Tahltan roots that were adopted 2 January 1980.[3][16][17][18][19]

Accessibility

See also

Notes

  1. ^ The Global Volcanism Program incorrectly spells Nahta as Nahto.[1]

References

  1. ^ a b c "Spectrum Range: Synonyms & Subfeatures". Global Volcanism Program. Smithsonian Institution. Archived from the original on 2022-09-22. Retrieved 2024-08-28.
  2. ^ a b c d e "Nahta Cone". BC Geographical Names. Archived from the original on 2021-10-01. Retrieved 2024-08-27.
  3. ^ a b c d e f g h "A 502" (Topographic map). Telegraph Creek, Cassiar Land District, British Columbia (3 ed.). 1:250,000. 104 G (in English and French). Department of Energy, Mines and Resources. 1989. Archived from the original on 2021-05-02. Retrieved 2024-08-27.
  4. ^ a b "Nahta Cone". Catalogue of Canadian volcanoes. Natural Resources Canada. 2009-03-10. Archived from the original on 2010-12-11. Retrieved 2023-01-29.
  5. ^ a b c Souther, J. G. (1988). "1623A" (Geologic map). Geology, Mount Edziza Volcanic Complex, British Columbia. 1:50,000. Cartography by M. Sigouin, Geological Survey of Canada. Energy, Mines and Resources Canada. doi:10.4095/133498.
  6. ^ a b Souther 1992, p. 235.
  7. ^ "Cassiar Land District". BC Geographical Names. Archived from the original on 2018-06-27. Retrieved 2024-08-28.
  8. ^ "Mess Creek". BC Geographical Names. Archived from the original on 2021-08-20. Retrieved 2022-09-29.
  9. ^ "Edziza: Photo Gallery". Global Volcanism Program. Smithsonian Institution. Archived from the original on 2021-09-21. Retrieved 2024-07-04.
  10. ^ a b "Mount Edziza Provincial Park". BC Parks. Archived from the original on 2023-01-23. Retrieved 2024-07-03.
  11. ^ Souther 1992, p. 104.
  12. ^ Holland, Stuart S. (1976). Landforms of British Columbia: A Physiographic Outline (PDF) (Report). Government of British Columbia. p. 49. ASIN B0006EB676. OCLC 601782234. Archived from the original (PDF) on 2018-11-14.
  13. ^ Souther 1992, p. 214.
  14. ^ Edwards, Benjamin Ralph (1997). Field, kinetic, and thermodynamic studies of magmatic assimilation in the Northern Cordilleran Volcanic Province, northwestern British Columbia (PhD thesis). University of British Columbia. pp. 10, 11. ISBN 0-612-25005-9.
  15. ^ Wood, Charles A.; Kienle, Jürgen (1990). Volcanoes of North America: United States and Canada. Cambridge University Press. p. 124. ISBN 0-521-43811-X.
  16. ^ "Wetalth Ridge". BC Geographical Names. Archived from the original on 2021-10-01. Retrieved 2024-08-28.
  17. ^ "Outcast Hill". BC Geographical Names. Archived from the original on 2022-10-09. Retrieved 2024-08-28.
  18. ^ "Exile Hill". BC Geographical Names. Archived from the original on 2021-10-01. Retrieved 2024-08-28.
  19. ^ "Tadekho Hill". BC Geographical Names. Archived from the original on 2021-10-01. Retrieved 2024-08-28.

Sources

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