Morphology of seamounts at the Mendeleev Rise, Arctic Ocean

  • Evgeny Gusev I.S. Gramberg All-Russian Scientific Research Institute for Geology and Mineral Resources of the Ocean, Geological mapping department, St. Petersburg
  • Pavel Rekant I.S. Gramberg All-Russian Scientific Research Institute for Geology and Mineral Resources of the Ocean, Geological mapping department, St. Petersburg
  • Valery Kaminsky I.S. Gramberg All-Russian Scientific Research Institute for Geology and Mineral Resources of the Ocean, Geological mapping department, St. Petersburg
  • Alexey Krylov I.S. Gramberg All-Russian Scientific Research Institute for Geology and Mineral Resources of the Ocean, Geological mapping department, St. Petersburg, and St Petersburg State University, Institute of Earth Sciences, St Petersburg
  • Andrey Morozov Federal Agency on Mineral Resources, Geological Foundations Department, Moscow
  • Sergey Shokalsky A.P. Karpinsky Russian Geological Research Institute, Department of composite geological mapping, St Petersburg
  • Sergey Kashubin A.P. Karpinsky Russian Geological Research Institute, Department of composite geological mapping, St Petersburg
Keywords: Ocean geomorphology; submarine landscapes; slope structures; Arctic Ocean; Mendeleev Ridge

Abstract

Geological and geophysical studies undertaken during the Russian Arktika-2012 Expedition of 2012 produced evidence of basement outcrops on the steep slopes of the Mendeleev Rise seamounts. Observations of the outcrops from research submarines showed that part of the steep slopes interpreted as basement outcrops based on seismic data were overlain by a light sediment cover. The actual areas of the basement outcrops are therefore much less than indicated by the seismic data alone. The outcrops found are of 5–10 to 100–200 m and are often stretched along some hypsometric level or arranged obliquely, crossing a slope at an angle to the horizon. The rocks are massive and layered, often strongly weathered, cavernous, with visible fissures and extended by dislocations.

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Published
2017-04-10
How to Cite
Gusev, E., Rekant, P., Kaminsky, V., Krylov, A., Morozov, A., Shokalsky, S., & Kashubin, S. (2017). Morphology of seamounts at the Mendeleev Rise, Arctic Ocean. Polar Research, 36. Retrieved from https://polarresearch.net/index.php/polar/article/view/2646
Section
Research Articles