NEW ISOTOPIC AND PALAEOMAGNETIC DATA ON THE EARLY CARBONIFEROUS BEREZOVKA COMPLEX OF THE MAGNITOGORSK ZONE (SOUTHERN URALS). ARTICLE 2. ROCK MAGNETIC AND PALAEOMAGNETIC STUDIES AND THEIR KINEMATIC IMPLICATIONS

A series of articles presents isotopic and palaeomagnetic data for rocks of the Early Carboniferous Berezovka complex of the Magnitogorsk zone. The study had a twofold objective: firstly, to obtain the first isotopic ages and, secondly, to carry out geodynamic reconstructions for the time of formation of the complex based on palaeomagnetic data. This paper presents the first rock magnetic and palaeomagnetic data for volcanic rocks from the Early Carboniferous Berezovka volcanic complex in the Magnitogorsk zone (Southern Urals). It can be concluded from the rock magnetic data that the studied rocks have not undergone significant secondary alteration and have retained their pre-folding magnetization. Palaeomagnetic poles, calculated from the directions of pre-folding magnetization, made it possible to propose a new kinematic model for the Magnitogorsk-Bogdanovka graben based on shear deformations in the Karabulak reverse-slip zone.