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Saikaidō Seamounts

(Redirected from Chikuzen Seamount)

The Saikaidō Seamounts are an underwater feature in the Philippine Sea.[1] The seamounts are in the northern end of the Kyushu-Palau Ridge (KPR).[2] The seabed ridge begins in an area about 900 km from the eastern end of the Bungo Channel (豊後水道, Bungo Suidō) or "Bungo strait" between the Japanese islands of Kyushu and Shikoku. The ridge creates a line on the ocean floor which runs southwest in the direction of the island of Palau.[3] There is a chain of extinct volcanos on this line.[4]

The Saikaidō underwater mountain chain is southeast of the Japanese island of Kyushu.

This seabed feature is named after Saikaidō, which was the name given to the southern region of Japan during the Asuka period.[5]

Saikaidō Seamounts -- northern part of Kyushu-Palau Ridge on ocean floor of Philippine Sea


Seamounts

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Each of these seamounts is a submarine extinct volcano.[4] The undersea mountain range includes:

Name Translation Coordinates Notes Refs
Bungo Seamount 豊後海山 28°25.4′N 134°15.0′E / 28.4233°N 134.2500°E / 28.4233; 134.2500 (Bungo Seamount) Named after the former Bungo Province of the Saikaidō region. [6]
Buzen Seamount 豊前海山 28°51.6′N 134°34.4′E / 28.8600°N 134.5733°E / 28.8600; 134.5733 (Buzen Seamount) Named after the former Buzen Province of the Saikaidō region. [7]
Chikugo Seamount 筑後海山 28°36.0′N 133°55.5′E / 28.6000°N 133.9250°E / 28.6000; 133.9250 (Chikugo Seamount) Named after the former Chikugo Province of the Saikaidō region. [8]
Chikuzen Seamount 筑前海山 29°10.9′N 133°47.8′E / 29.1817°N 133.7967°E / 29.1817; 133.7967 (Chikuzen Seamount) Named after the former Chikuzen Province of the Saikaidō region. [9]
Higo Seamount 肥後海山 27°52.2′N 134°35.8′E / 27.8700°N 134.5967°E / 27.8700; 134.5967 (Higo Seamount) Named after the former Higo Province of the Saikaidō region. [10]
Hizen Seamount 肥前海山 28°05.5′N 134°14.9′E / 28.0917°N 134.2483°E / 28.0917; 134.2483 (Hizen Seamount) Named after the former Hizen Province of the Saikaidō region. [11]
Komahashi Seamount 駒橋海山 28°05.9′N 134°40.4′E / 28.0983°N 134.6733°E / 28.0983; 134.6733 (Komahashi Seamount) Named after the former Komahashi district of the Saikaidō region. [12]
Komahashi-daini Seamount 駒橋第二海山 29°52.5′N 133°20.1′E / 29.8750°N 133.3350°E / 29.8750; 133.3350 (Komahashi-daini Seamount) Named after the former Komahashi district of the Saikaidō region. [13]
Nishinoomote Seamount 西之表海山 28°29.0′N 132°46.0′E / 28.4833°N 132.7667°E / 28.4833; 132.7667 (Nishinoomote Seamount) Named after the former Nihinoomote district of the Saikaidō region. [14]
Osumi Seamount 大隅海山 27°54.9′N 134°42.5′E / 27.9150°N 134.7083°E / 27.9150; 134.7083 (Osumi Seamount) Named after the former Ōsumi Province of the Saikaidō region. [15]
Satsuma Seamount 薩摩海山 27°54.9′N 134°42.5′E / 27.9150°N 134.7083°E / 27.9150; 134.7083 (Satsuma Seamount) Named after the former Satsuma Province of the Saikaidō region. [16]
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References

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  1. ↑ Geographic.org, "Kōkō Guyot". Retrieved 2012-6-11.
  2. ↑ KPR is an acronym. KPR means "Kyushu-Palau Ridge".
  3. ↑ VLIMAR Placedetails, Saikaido Seamount Chain, citing IHO-IOC GEBCO Gazetteer of undersea feature names (October 2002). Retrieved 2012-4-7.
  4. ↑ 4.0 4.1 Kobayashi, K. "Origin of the Palau and Yap trench-arc systems," Geophysical Journal International, Vol. 157, Issue 7, p. 1306.
  5. ↑ Nussbaum, Louis-Frédéric. (2005). "Goki-shichidō" in Japan Encyclopedia, p. 255.
  6. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "75 Bungo Seamount," p. 67 [PDF 79 of 120]; excerpt, "Bungo" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  7. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "74 Buzen Seamount," p. 67 [PDF 79 of 120]; excerpt, "Buzen" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  8. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "73 Chikugo Seamount," p. 67 [PDF 79 of 120]; excerpt, "Chikugo" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  9. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "72 Chikuzen Seamount," p. 67 [PDF 79 of 120]; excerpt, "Chikuzen" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  10. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "79 Higo Seamount," p. 68 [PDF 80 of 120]; excerpt, "Higo" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  11. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "76 Hizen Seamount," p. 68 [PDF 80 of 120]; excerpt, "Hizen" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  12. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "77 Komahashi Seamount," p. 68 [PDF 80 of 120]; excerpt, "Komahashi" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  13. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "71 Komahashi-daini Seamount," p. 67 [PDF 79 of 120]; excerpt, "Komahashi" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  14. ↑ Intergovernmental Oceanographic Commission of UNESCO. 2001. "70 Niahinoomote Seamount," Summary Report of the 14th meeting of the GEBCO sub-committee on Undersea Feature Names (SCUFN), also known as IOC-IHO/GEBCO SCUFN-XIV/3, pp. 66-67 [PDF 78-79 of 120]; excerpt, "Nishinoomote" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  15. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "80 Osumi Seamount," p. 68 [PDF 80 of 120]; excerpt, "Osumi" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.
  16. ↑ IOC-IHO/GEBCO SCUFN-XIV/3, "78 Satsuma Seamount," p. 68 [PDF 80 of 120]; excerpt, "Satsuma" was a feudal district name in the Edo period on the island of Kyushu. Retrieved 2012-4-7.

Other websites

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28°29′N 132°46′E / 28.483°N 132.767°E / 28.483; 132.767

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