Structure of the Mid-Pacific Sea Mountains on Geomorphological and Cosmogeological Data

The use of morphostructural analysis and cosmogeological decoding methods by the working with relief digital models (3D) which were created within the Google Earth Pro program framework on the global bathymetric databases and maps (GEBCO_2014, GEBCO_2022 Grid) foundation made it possible to obtain fundamentally new information about qualitative and quantitative characteristics of the Mid-Pacific Seamounts and ocean floor adjacent areas structural elements. It was been established that the under consideration mountains are represented compound complexes of ring and linear groupings of abradated paleovolcanic constructions and other focal structures that form relict magmatic swells and underwater mountain ridges, respectively. Parameters, morphological features and basic regularities of focal structures of different sizes and depths laying location were detected, the network of fracture zones and block morphostructures of the region were briefly characterized. The main factors and mechanisms of mountain formation are associated with mantle diapirism phenomena and scale basaltoid volcanism, which have realized in pulsating regime throughout the Cretaceous period.