Neotectonic and modern stresses of South Sakhalin

Neotectonics and Stressed State Patterns of the Sakhalin Island

“…The stereograms of different stressed state types stereograms of the LSSs of unknown type, when all three axes are tilted 40-60°, are highlighted with white color. It is apparent that normal fault and normal fault with strike-slip component LSSs prevail over reverse fault with strike-slip component and reverse fault ones, which contradict the hypothesis of the post-fold change of the stressed state of strike-slip fault type to the reverse fault in the Sakhalin [7,17].…”

“…Such hypothesis of work [7] was based on 15 LSS determinations only in the South Sakhalin. The later studies involving 56 points of LSS determinations as well as the analysis of seismicity (see below) have proved the prevailing strike-slip stress field both in fold and orogenic stages.…”

“…According to the paper [4], the interplate border is drawn along both the Western Sakhalin Fault and the Central Sakhalin Fault. The analysis of neotectonic stress to the West and East of the Central Sakhalin Fault allowed us to obtain new information about location of the border aforementioned [5][6][7].…”

“…In addition to our previous publications [5,7], this chapter presents the results of extended tectonophysical studies based on a set of methods [6,[8][9][10], and the field measurements of 2019-2020 campaigns are involved. The paper presents the manifold manifestations of the geodynamic and seismic processes in the crust between the Amur and Okhotsk microplates, lying within the convergence zones of the Pacific, Eurasian, and North American tectonic plates.…”