Anomalies of iron group elements (Cr, Ni, Co, Fe2O3, MgO, V, Mn) and chalcophile elements (Cu, Zn, Au, Ag, As, Sb, Hg) can show fault structure. In addition, different fault structure have different geochemicil characteristics, we can divide different time of fault structure from geochemical method.
This block principal stress retention is complex, maximum principal stress azimuth is NE80°~90° in north well from S3-8-11 to S8-107, maximum principal stress azimuth is NE90°~136° in west ShiShenlOO block, ShiShen103 block, ShiShen104 block, maximum principal stress azimuth is particularly complex because of fault structure, main direction is in SN.
Study results show that the low-level sub-lacustrine fans or fluxoturbidite fans developed in the shovel-style fault structure and faulted step and decollement buried hills in theladder style and slope-flat style fault structure are the most important exploration targets.
3D fault structure modeling faces mainly two difficulties,One is the design of the 3D spatial data model which fit to the 3D geological fault structure model,the other is the method of building the model.
tress distribution in crust and upper mantle has been explored using numerical simulation of finite element method by selecting a profile with length of 350 km and depth of 120 km in Zhefang-Binchuan and establishing different models. The calculation indicates that the stress distribution in linear elastic media is not only controlled by fault structure, but also by parameters of physical property.
The failure process of en-echelon fault structure is experimentally studied and the evolution of the deformation filed during failure is inspected and analyzed using the digital speckle correlation method(DSCM).
The vertical orientation and east-west strike of the seismic events are essentially coplanar with the caldera ring-fault structure in the southern portion of the Hijiori Caldera.
The exact and complete solution, in the time domain, for the scattering of the pressure field of an acoustic plane wave normally incident on a vertical fault structure is determined adapting previous results given for the frequency domain.
Acoustic plane wave scattering at a vertical fault structure represents the simplest two-dimensional model of geophysical exploration that can be investigated by analytical techniques.
Relationships between the locations of mining-induced seismic events, local fault structure, and mine geometry were examined in a deep hard-rock mine in northern Idaho.
Hydraulic fracturing stress measurements have been performed in a limestone quarry near the Hohenzollern-Graben, a fault structure in SW Germany.