The knowledge that hydrostatic pressure is equal to the gravity value of the overlying rocks in studying a dynamic state of certain underground site is argued. It is suggested that the stress field T in the crust is a...The knowledge that hydrostatic pressure is equal to the gravity value of the overlying rocks in studying a dynamic state of certain underground site is argued. It is suggested that the stress field T in the crust is a combination or superposition of total hydrostatic pressure P with differential stress σ,and the total hydrostatic pressure P at any point in the crust comprises two parts: one is spherical stress tensor P<sub>G</sub> caused by the gravity, and the other is spherical stress tensor P<sub>s</sub> caused by tectonic stress; therefore P could not be attributed to the gravity of overlying rocks only. The results obtained by a finite-element simulation indicate that the tectono-original additional hydrostatic pressures P<sub>s</sub> decrease gradually from the compressive zone （p<sub>c</sub><sup>S</sup>） to the shear zone (P<sub>SH</sub><sup>s</sup>)and to the tensile zone （P<sub>T</sub><sup>s</sup>）, i.e.P<sub>c</sub><sup>s</sup>】P<sub>sH</sub><sup>s</sup>】P<sub>T</sub><sup>s</sup> in the same depth. On the basis of the above-mentioned research, the method of measurement and calculation of metallogenetic depth corrected by P<sub>s</sub> is展开更多
文摘The knowledge that hydrostatic pressure is equal to the gravity value of the overlying rocks in studying a dynamic state of certain underground site is argued. It is suggested that the stress field T in the crust is a combination or superposition of total hydrostatic pressure P with differential stress σ,and the total hydrostatic pressure P at any point in the crust comprises two parts: one is spherical stress tensor P<sub>G</sub> caused by the gravity, and the other is spherical stress tensor P<sub>s</sub> caused by tectonic stress; therefore P could not be attributed to the gravity of overlying rocks only. The results obtained by a finite-element simulation indicate that the tectono-original additional hydrostatic pressures P<sub>s</sub> decrease gradually from the compressive zone （p<sub>c</sub><sup>S</sup>） to the shear zone (P<sub>SH</sub><sup>s</sup>)and to the tensile zone （P<sub>T</sub><sup>s</sup>）, i.e.P<sub>c</sub><sup>s</sup>】P<sub>sH</sub><sup>s</sup>】P<sub>T</sub><sup>s</sup> in the same depth. On the basis of the above-mentioned research, the method of measurement and calculation of metallogenetic depth corrected by P<sub>s</sub> is
