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Ingenstrem Depression Volcanic Field description and information

INGENSTREM DEPRESSION VOLCANIC FIELD LINKS

SAMPLES
LOCATION
FACTS
Type:Volcanic field
Most Recent Activity:
Seismically Monitored: No
Elevation: 0 ft ( m)
Latitude: 52.5° N
Longitude:175.1° E
Quadrangle:
CAVW Number:
Associated Features:Back West
Madonna
Down South
Snake River Plains
Dwight East
Willy
Up South
70B29
Crinkly
Muffin
Parasite 1
Parasite 2
Nearby towns:
DESCRIPTION
From Yogodzinski and others (2015) [1]: The "Ingenstrem Depression - a fault-bounded rectangular basin, approximately 60 km long by 10-15 km wide and 2000 m deep, which sits along the crest of the Aleutian ridge, between Attu and Buldir islands. Seafloor mapping reveals the presence of many small volcanic cones and associated lava flows, in and around the margins of the Ingenstrem Depression. The largest cones have base diameters of 2-4 km and are 300-600 m in height. Most appear to be undeformed, constructional volcanic features. Spatial analysis of bathymetric data indicates that there are 134 volcanic cones in the Ingenstrem Depression, which constitute a combined volume of 10 cubic kilometers - a volume similar to that of single, small, emergent calc-alkaline volcanoes found throughout the arc ( [2])."
REFERENCES CITED
[1]
The role of subducted basalt in the source of island arc magmas: evidence from seafloor lavas of the Western Aleutians, 2015
citation imageYogodzinski, G.M., Brown, S.T., Kelemen, P.B., Vervoort, J.D., Portnyagin, Maxim, Sims, K.W.W., Hoernle, Kaj, Jicha, B.R., and Werner, Reinhard, 2015, The role of subducted basalt in the source of island arc magmas: evidence from seafloor lavas of the Western Aleutians: Journal of Petrology, v. 56, n. 3, p. 441-492, doi:10.1093/petrology/egv006
http://dx.doi.org/10.1093/petrology/egv006

[2]
Back-arc seamount distribution along the western Aleutian volcanic arc., 2007
White, S.M., Yogodzinski, G.M., Kelemen, P.B., and Scholl, D. W., 2007, Back-arc seamount distribution along the western Aleutian volcanic arc [abs.]: Presented at AGU Fall Meeting, San Francisco, CA, Abstract V43D-1627.

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