3D modeling of faults and stability analysis of Dardvey mine in Sangan iron skarn complex, Iran

Abstract

The system of water flow into the Sangan mineral pit, located in NE Iran, has a direct relationship with the deformations, fractures, and faults. This study aims to investigates, identifies, and analyze the tectonic structures in the Sangan Dardvey deposit, and to determine the regional structural model, deposit structural patterns, and finally provide the deposit's 3D formation model for water entry. The Sangan mining region is located at the end of one of the large-scale branching terminals of the Dorouneh fault, this block is considered a part of a tectonic escape in terms of regional tectonics, and most of the groundwater in the region can be attributed to its activity. The fault density map has been prepared by investigating the faults existing in the deposit area and analyzing the spatial density of faults. The map shows that three faults zones in the Dardvey deposit area are in the E-W, NE-SW, and NW-SE strikes with a dip angle (70°-80°). These fault areas can create paths for the entrance of groundwater into the mineral deposit. Moreover, the structural studies have shown that in the Sangan Dardvey deposits, the fractures play a crucial role in the fault zones, to which the existing anomalies are directly related. The estimation of water entry in the Dardvey deposits has been mainly controlled by tectonic structures.

Stereographic for Development of Stricture Pattern of Geological Alteration Zone in Atauro Island, Timor-Leste

“…(Figure 8a dan 8b) to analyse kinematics and relate structures to each other and the tectonic setting, making it possible to determine the genetics of the geological structures developed in the study area. Fractures, volcanic breccias, slickensides, and variations in dip and strike over small distances, as well as uplift and depression structures, indicate the performance of faults acting in the area, which play an essential role in the geometry and distribution of mineralised masses (Brookhian et al, 2020) and satellite imagery and field data. Geological maps (Figure 11) were used to determine the characteristics of rocks on Atauro Island, Timor-Leste.…”

“…Stereographic programs are often used to determine the movement of structural patterns as traps in the formation of mineralisation and faults that occur in the study area. The results of geological structure modelling and analysis of general structural direction patterns, veinstyle Cu, Ag, Pb, and Zn mineralisation are associated with significant N-S and B-T faults, particularly the Villa, Berau, and Makili Pala faults (Brookhian et al, 2020). Geological structures are still used to name faults and breccias at Atauro, Timor-Leste, to develop alteration and mineralisation models.…”