Surveys of seamounts in the Southern Indian Ocean during the 37th and 38th Japanese Antarctic Research Expedition in 1995 and 1996

Surveys of seamounts in the Southern Indian Ocean were carried out during the 37th and 38th Japanese Antarctic Research Expedition (JARE-37 and JARE-38). Previous uncharted seamounts were identified on board the icebreaker SHIRASE. During the JARE-37 cruise in December 1995,the survey was conducted...

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Bibliographic Details
Main Authors: Yoshifumi Nogi, Masaki Kanao, Katsutada Kaminuma
Format: Article in Journal/Newspaper
Language:English
Japanese
Published: National Institute of Polar Research 1998
Subjects:
Online Access:https://doi.org/10.15094/00009029
https://doaj.org/article/9872696b9eba4f4a80c80eb32debc299
Description
Summary:Surveys of seamounts in the Southern Indian Ocean were carried out during the 37th and 38th Japanese Antarctic Research Expedition (JARE-37 and JARE-38). Previous uncharted seamounts were identified on board the icebreaker SHIRASE. During the JARE-37 cruise in December 1995,the survey was conducted around (57°S, 98°E) and the shallowest depth of a seamount, 983m, was recorded at 56°59.41′S and 98°05.51′E. The height of the seamount above the ocean floor is more than 3400m and its radius is about 20km. During the JARE-38 cruise in December 1996,the survey was conducted around (60°S, 107°E) and two seamounts were found. The shallowest depth of the northern seamount is 1141m and that of the southern seamount is 2024m. These two seamounts form a small seamount chain about 35km long extending in the northeast-southwest direction.