Kerguelen-Gaussberg

an underwater ridge in the southern Indian Ocean, near Antarctica; located between the Atlantic-Indian and the South Indian basins. Length, 2,220 km; width, to 400 km. The prevailing depths above this ridge are 1,000–2,000 m. Peaks rise above the water, forming islands, among which the two major ones are Kerguelen and Heard. The Kerguelen-Gaussberg Ridge is a block uplift of the ocean floor, with superimposed volcanic forms in places. It is composed mainly of basalts. The ridge’s volcanic activity, which evidently began during the Paleogene, has continued (with interruptions). It was discovered in 1929–31 by the Australian expedition of D. Mawson on the expeditionary ship Discovery.

单词	kerguelen-gaussberg
释义	Kerguelen-Gaussberg Kerguelen-Gaussberg an underwater ridge in the southern Indian Ocean, near Antarctica; located between the Atlantic-Indian and the South Indian basins. Length, 2,220 km; width, to 400 km. The prevailing depths above this ridge are 1,000–2,000 m. Peaks rise above the water, forming islands, among which the two major ones are Kerguelen and Heard. The Kerguelen-Gaussberg Ridge is a block uplift of the ocean floor, with superimposed volcanic forms in places. It is composed mainly of basalts. The ridge’s volcanic activity, which evidently began during the Paleogene, has continued (with interruptions). It was discovered in 1929–31 by the Australian expedition of D. Mawson on the expeditionary ship Discovery.
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