Engineering and Geological Zoning of the Residual Soil of the Malmyzhsky Deposit (Svoboda Site)

I.V Abaturova,T.S Bobina

doi:10.17072/psu.geol.20.2.150

Abstract

Interest to the study of residual soil arose at a time when geological engineers faced the problem of developing the open pits in the eluvial soils. A significant number of Russian and foreign scientists considered the formation of weathering crusts from different points of view. They established the geochemical zoning, and engineeringgeological zoning of the weathering crusts. However, no comprehensive and detailed engineering-geological zonation of the crusts of weathering, especially when studying mineral deposits, was given due to the insufficient attention paid to it until today. Therefore, it is important to correctly determine the type and profile of the residual soil in order to establish the possibility to control the engineering and geological conditions when exposing the rock mass during excavation work for further forecasting the slope stability of the projected open pit mining structures

Highlights

The study of residual soil provides with the addition, the degree of rock fracturing has a sigimportant information on the composition and nificant impact on the development of the evolution features of the lithosphere, the for- weathering process
The lithological composition, crust forming the upper horizons of the lithothe nature of the clayey weathering products, sphere is one of the components of the engineerand their physical and mechanical properties ing-geological conditions that affect the develchange dramatically depending on the composi- opment of large-scale engineering-geological tion of the parent rocks
The Malmyzhskoye gold-copper-porphyry deposit is located within the Khabarovsk Territory. It consists of three large areas: Dolina, Svoboda, Center – differing from each other in the petrographic composition of the source rocks, tectonic disturbance, and the degree of development of chemical weathering

Summary

Introduction

The study of residual soil provides with the addition, the degree of rock fracturing has a sigimportant information on the composition and nificant impact on the development of the evolution features of the lithosphere, the for- weathering process. All the above contributes to the uneven ous types of structures: from buildings to quar- course of the process of weathering crust forries. It is important at the stage of mation. Clayey formations that inherit the structural pat- In the engineering-geological study and astern of the parent rocks, and turn into unaltered sessment of mineral deposits, the weathering rocks with depth. The lithological composition, crust forming the upper horizons of the lithothe nature of the clayey weathering products, sphere is one of the components of the engineerand their physical and mechanical properties ing-geological conditions that affect the develchange dramatically depending on the composi- opment of large-scale engineering-geological tion of the parent rocks.

Methods

Results

Conclusion