Open AccessMAPPING OF THE NW-TRENDING HIDDEN FAULTS FROM ANALYSIS OF THE RELIEF AND GEOPHYSICAL FIELDS IN THE PRIAMURYE REGION
Author(s) -
Т. В. Меркулова,
Г. З. Гильманова,
S. A. Tusikova
Publication year - 2021
Publication title -
tihookeanskaâ geologiâ
Language(s) - English
Resource type - Journals
ISSN - 0207-4028
DOI - 10.30911/0207-4028-2021-40-3-54-66
Subject(s) - geology , lineament , seismology , seismic hazard , fault (geology) , block (permutation group theory) , lithosphere , geophysics , tectonics , geometry , mathematics
The paper investigates indications of the NW-trending hidden faults in the Priamurye region. Four maijor fault zones and a series of lower-rank faults are mapped, which are indicated by lineaments of the relief, magnetic anomalies and arranged earthquake foci sequences. The NW-trending faults control the block divisibility of the upper part of the lithosphere in the region and are currently seismically active. Two NW-trending hidden faults are characterized by a considerable amount of the seismic energy released which should be accounted for in the seismic hazard assessment of the region.