Camille Cone


Facts


  • Official Name: Camille Cone
  • Seismically Monitored: No
  • Color Code:
  • Alert Level:
  • Elevation: 418m (1371ft)
  • Latitude: 65.53387
  • Longitude: -163.38996
  • Smithsonian VNum:
  • Nearby Towns:
    • Deering 42 mi (68 km) NE
    • Council 45 mi (73 km) SW
    • Mary's Igloo 55 mi (88 km) SW
    • White Mountain 59 mi (95 km) SW
    • Golovin 69 mi (111 km) SE

Description

Camille Cone is a part of the basaltic lava plateau that surrounds Imuruk Lake on the north central part of Seward Peninsula, Alaska [1] . Hopkins (1963) [1] estimates that Camille Cone is roughly 100 feet high and one mile in diameter. Hornitos are common near the source vent of Camille Cone, which is marked by a smaller welded agglomerate cone that is about 65 feet high [1] . Within this agglomerate cone is a summit crater that is about 60 feet in diameter and filled with loose scoria [1] .
Issuing from Camille Cone, and extending 39 km westward from it, is the Camille lava flow [2] . This basaltic pahoehoe lava flow is generally less than 25 feet thick, with initial microrelief features including pressure ridges, hornitos, and collapse depressions visible [1] . However, frost riving has disturbed the surface of the flow along primary fractures that formed during flow emplacement, resulting in individual blocks being tilted from their initial positions and giving the flow an appearance of a jigsaw puzzle with individual pieces spread apart [1] .
Camille Cone, and the pahoehoe flow that extends 39 km westward from it, are Late Pleistocene in age [1] [2] . Indeed, Mukasa and others (2007) [3] attempted to date the Camille lava flow via Ar-Ar dating and were unsuccessful due to a lack of appreciable radiogenic Ar. The Camille flow overlies the older Gosling and Imuruk volcanics, whereas the Holocene-aged Lost Jim lava flow overlies the Camille lava flow between Lava Lake and Camille Cone [1] [2] .

Name Origin

"Camille Cone" was reported as a place name in 1951 by Hopkins (Orth, 1971).


References Cited

[1] Geology of the Imuruk Lake area, Seward Peninsula, Alaska, 1963

Hopkins, D. M., 1963, Geology of the Imuruk Lake area, Seward Peninsula, Alaska: U.S. Geological Survey Bulletin 1141-C, 101 p., 2 sheets, scale 1:250,000.
full-text PDF 3.3 MB
plate 1 PDF 25 MB
plate 4 PDF 316 KB

[2] Volcanoes of North America: United States and Canada, 1990

Wood, C. A., and Kienle, Juergen, (eds.), 1990, Volcanoes of North America: United States and Canada: New York, Cambridge University Press, 354 p.

[3] The (super 40) Ar/ (Super 39) Ar chronology and eruption rates of Cenozoic volcanism in the eastern Bering Sea Volcanic Province, Alaska, 2007

Mukasa, S.B., Andronikov, A.V., and Hall, C.M., 2007, The (super 40) Ar/ (Super 39) Ar chronology and eruption rates of Cenozoic volcanism in the eastern Bering Sea Volcanic Province, Alaska: Journal of Geophysical Research, v. 112, 18 p., doi: 10.1029/2006JB004452, 2007.

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