Relief of the bottom of Lake Ladoga and its relationship with disjunctives

Abstract

The new digital bathymetric model of Lake Ladoga made it possible to study the regularities of direction of extensive landforms (lineament analysis) on the bottom of the lake with use of high-quality basis. The study found that despite the significant differences in the types of relief within the north-western and south-eastern areas of bottom of Lake Ladoga the general direction of the linear forms of relief are the same for the entire bottom of the lake. The predominance of following direction systems is noted: 140°, 0°, 90°, 40°, which generally correspond to directions of the planetary network of Earth fracturing. Lineaments of the bottom of the lake coincide with known disjunctives and therefore presumably faults network can be extended along the lines of the lineament network.