Multistage exhumation of the Menderes Massif, western Anatolia (Turkey)
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Since the 1970-ties, large azimuth changes in the equilibrium of quartz horizontal pendulums have been irregularly registered in the Geodynamic Laboratory in Książ. However, azimuth changes of the pendulums did not correlate with meteorological phenomena and the compensation phases of these changes excluded processes of gravitational creep of the rock massif. It was assumed that changes of these azimuths result from tectonic tilt of the rock massif. These were the first observations of contemporary tectonic activity in the Świebodzice Depression (SW Poland). Multiannual observations have allowed for determining temporal and amplitude characteristics of such tectonic activity. Intervals of tectonic activity last from several days to two weeks and are separated by periods of low activity or even no activity. During tectonic events, amplitudes of rock massif deformation reach values of several tens of tidal amplitudes. The distinguished characteristics of tectonic effects and their incidental character have been confirmed by water-tube tiltmeters (WT) activated in the Geodynamic Laboratory in the early 2000s. Unique conditions of the rock massif cause that the WTs, in connection with blocks of the rock massif separated by faults, are natural detectors of tectonic activity, allowing to determine the function of tectonic activity and its derivatives in the surrounding areas.
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The latest results of the seismological analysis in the eastern margin of the Bohemian Massif are discussed. The stations of the Institute of Physics of the Earth (IPE) have detected in this region 131 tectonic microearthquakes since 1992. Twenty tectonic events were localised by program HYPO3D. The localisations of epicentres indicate affinity of the seismo-tectonic activity mainly to the NW-SE trending movements along the faults.
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Margin (machine learning)
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and complex are the two basic forms of the association of granitoid. This is also a general character of granitoid geology in south China. Compound massif means a that is spatially associated with several granitoid rocks at different ages. Thus the granitoid components are not geneticaly related with each other. The complex massife is meant to a that is associated with multiply differentiating ascending and emplacing magma from the same chamber. It is theoretically and pratically important to distinquish the two kinds of massifs.
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