ACTIVE FAULTS OF SOUTH-EASTERN KAMCHATSKY PENINSULA AND KOMANDORSKY SHEAR ZONE

B.V. Baranov1, C. Gaedicke2, R. Freitag3, K.A. Dozorova1

1Institute of Volcanology and Seismology, FEB RAS, Petropavlovsk-Kamchatsky, 683006, Russia
2Kamchatka State University, 683032, Petropavlovsk-Kamchatsky

Summary from field works fulfilled in 2007-2008 in frames of German-Russian KALMAR Project and previous investigations (Gaedicke et al., 2000; Freitag et al., 2001; Kozhurin, 2007) allowed to classify faults of south-eastern Kamchatsky Peninsula in kinematical aspect as right-lateral reverse strike-slip of south-western strike, left-lateral normal strike-slip oriented in north-western direction, sub-latitudinal and sub-longitudinal normal faults. First two faults are the longest structures associated with Komandorsky Shear Zone. They bound an Earth’s crust block, which intrudes in main massif of Kamchatsky Peninsula according to the character of dislocations. It supports an indentation tectonic model of the collision of Aleutian arc slivers with Kamchatka.

Keywords: Kamchatsky Peninsula, field works, active faults, and kinematics models.

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