Магнитное поле Байкальской рифтовой зоны по данным высокоточной наземной векторной магнитной съемки

The results of component magnetic survey in Baikal rift including the measurements on Lake Baikal ice between Olkhon and Ushkany Islands in March 2009 (the length of profile more than 150 km) and surface measurements along Tunkin Valley (Sayan, the length of profile is about 170 km) and on Olkhon Island (length of profile is about 90 km) in July 2010 are presented. The precise DIflux magnetometer 3T2KP were used for observations of magnetic declination and inclination and proton magnetometer POS-1 were used for measurement of total field. The spatial distribution of magnetic field along profiles and the estimate of magnetic element charts are presented. The comparison of the obtained results with historical data for this region and with calculations using reference field model IGRF-11 and NGDC-720 are made.