Identification of Ruptures and their Interaction with Hydrothermal–Magmatic Systems on Northern Paramushir Isl. (Kuril Islands, Russia): 3D Modeling of Tectonic Fragmentation

Abstract

Correlation of ruptures with volcanic activities, and related hydrothermal-magmatic systems are studied. In our research we used a set of methods that included analysis of satellite data, identification lineaments and voxel modeling of crustal fragmentations. The main geological structure that ensures transportation of thermal energy in the hydrothermal-magmatic systems in the northern part of Paramushir Isl., and the a sill-dike complex associated with the system of north-eastern and sub-latitudinal fractures is considered. The formation of the northeast oriented ruptures is perpendicular to stretch of the submerged plate and reflects the stress regime in the island-arc setting. In the north of Paramushir Isl. ruptures with sub-latitudinal directions are recorded. The ruptures are located on the extension of the regional fault which is perpendicular to the main axis of the back-arc Kuril basin.