Detroit Seamount

Detroit Seamount
Elevation of the Pacific seafloor, showing the Hawaiian-Emperor seamount chain, including Detroit Seamount near the top. The sharp "V" separates the Hawaiian Ridge from the older Emperor Seamount portion of the chain.
Map
Summit depth1,550 m (5,085 ft)[2]
Location
LocationNorthwest Pacific Ocean, towards Russia
GroupEmperor seamounts
Coordinates51°28.80′N 167°36′E / 51.48000°N 167.600°E / 51.48000; 167.600[1]
Geology
TypeGuyot
Volcanic arc/chainHawaiian-Emperor seamount chain
Age of rock81 and 76 million years[2][3] Built ~81 million;[4] near surface about 78 million years ago, then subsided; renewed phase of volcanism around 60 million years ago[2]
History
First visitGLORIA program, USGS[2]

Detroit Seamount, which was formed around 76 million years ago, is one of the oldest seamounts of the Hawaiian-Emperor seamount chain (Meiji Seamount is the oldest, at 82 million years). It lies near the northernmost end of the chain and is south of Aleutian Islands (near Russia),[2] at 51°28.80′N 167°36′E / 51.48000°N 167.600°E / 51.48000; 167.600[1][2]

Detroit Seamount is one of the few seamounts to break the naming scheme of the Emperor seamounts, which are named mostly after emperors or empresses of the Kofun period of Japanese history. It is instead named after the light cruiser USS Detroit.[5]

The Detroit Seamount is as big as the island of Hawaii.[2]

  1. ^ a b Seamounts Catalog by EarthRef, a National Science Foundation Project accessed 3-1-09.
  2. ^ a b c d e f g Kerr, Bryan C.; Scholl, David W.; Klemperer, Simon L. (July 12, 2005). "Seismic stratigraphy of Detroit Seamount, Hawaiian–Emperor Seamount chain" (PDF). Stanford University. doi:10.1029/2004GC000705. S2CID 131159328. Retrieved April 3, 2009. {{cite journal}}: Cite journal requires |journal= (help)(registration required)
  3. ^ "DRILLING STRATEGY". Ocean Drilling Program. Retrieved 2009-04-04.
  4. ^ Regelous, M.; Hofmann, A.W.; Abouchami, W.; Galer, S.J.G. (2003). "Geochemistry of Lavas from the Emperor Seamounts, and the Geochemical Evolution of Hawaiian Magmatism from 85 to 42 Ma" (PDF). Journal of Petrology. 44 (1): 113–140. doi:10.1093/petrology/44.1.113. Archived from the original (PDF) on July 19, 2011. Retrieved July 23, 2010.
  5. ^ Calgue, David A.; Dalrymple, G. Brent; Greene, H. Gary; Wald, Donna; Kono, Masaru; Kroenke, Loren W. (1980). "40. Bathymetry of the Emperor Seamounts" (PDF). Initial Reports of the Deep Sea Drilling Project. Vol. 55. Washington, DC: US Government Printing Office. pp. 846–847. LCCN 74-603338. Retrieved April 25, 2012.