The Variety of the Relief of the Northeastern Atlantic Volcanic Seamounts

• Published in: Russian journal of Pacific geology Vol. 17; no. Suppl 2; pp. S214 - S224
• Main Authors: Mazarovich, A. O., Dobrolyubova, K. O., Sokolov, S. Yu, Turko, N. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2023; Springer Nature B.V
• Subjects: Archipelagoes; Earth and Environmental Science; Earth Sciences; Geology; Guyots; Islands; Mountains; Ridges; Seamounts; Volcanoes; guyot; Canary Islands; Cape Verde Islands; seamount
• ISSN: 1819-7140; 1819-7159
• DOI: 10.1134/S1819714023080171

The structures of the volcanic seamounts of the Atlantis-Great Meteor group, as well as areas of the archipelagos of the Cape Verde Islands, the Canary Islands and the Azores are analyzed. Their simplest type is a cone-like structure with one summit (Maio seamount). A more complex type consists of two closely spaced volcanic edifices (Nola seamount). The seamounts were also formed as a result of the activity of a central-type volcano and a fissure system (The-Paps seamount). A more complex morphology is presented by the mountains that were formed as a result of the activity of an underwater volcano of the central type, which was combined with the activity of three to four radial fissure volcanic systems (the Tropic seamount). The seamounts were also formed only during fissure eruptions (the Condor seamount, the Cadamosto seamount). These are ridges, tens of kilometers long without a clearly defined summit. All above types of seamounts, with their rise above sea level, subsequent abrasion and subsidence lead to the creation of flat-topped structures (guyots) (the Senghor seamount).