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Information × Registration Number 0206U009161, 0104U006113 , R & D reports Title Solving the problem of foundation green-stone structures of the Middle-Dnipro geoblock US popup.stage_title Head Stepanyik L.M., Registration Date 25-12-2006 Organization Ukrainan State Geological Research Institute popup.description2 The objects of the research is the metamorphic rocks of aulsky suit and the plagiogranitoides of the dnepropetrovsky and sursky complexes, zirconium accessory, samples of rocks, amphiboles. The goal of the research is to find out age of the supracrustalic formations of the uranium-lead and samary-neodim isotopic methods, the optical methods with used electronic microscope and polarization microscope, the field studies.The limits of the age-old forming of granitoides the dnepropetrovsky complex have been determined more precisely. On this bases, formations of granitoides the sursky and dnepropetrovsky complexes are determined as synchronous. It is determined lower limit- 3.23 Ma and high limit-3.18 Ma age-old forming of supracrustalic formations aulsky suit. It is demonstrated that the rocks of aulic suit have been several stage of tectono-thermal transformations. The thermodynamic equilibrium is the characteristic of the paragenesis: amphybol + plagioclase + quartz- . This is a stage of methamorphism with PT - parameters of amphibolite facies. T = 570-610 о C, P = 4.0-6.2 kbar (400-600 MPa). This is depth more than 10 km. A field of application is geology Product Description popup.authors popup.nrat_date 2020-04-02 Close