Geology is the science of the earth. Its main research object is the earth’s solid surface—the crust.

Engineering geology is a branch of geology that studies geological issues related to engineering construction. The research object of engineering geology is the mutual constraints and interactions between engineering buildings (structures) and the geological environment. The basic tasks of engineering geology can be summarized into three aspects. The first is regional stability research and evaluation, the second is foundation stability research and evaluation, and the third is geological environment protection and geological disaster prevention.

Study of Geotechnical Properties Research on engineering dynamic geological effects Research on engineering geological survey theory and methods Regional engineering geology research

geological analysis Simulation method Experimental and testing methods calculation method

Topography, geotechnical types and engineering geological properties, geological structures, hydrogeological conditions, adverse geological effects, and natural building materials

Engineering geological problems refer to conflicts or problems caused by the interaction between engineering geological conditions and engineering buildings, or have an impact on the smooth construction and normal operation of the building itself.

Crust, mantle, core

In the process of geological historical development, the continuous changes in the material composition, internal structure and surface morphology of the earth and crust caused by natural forces are called geological processes.

Relative geological age and its determination

Isotope age and its determination

Geological time units and chronostratigraphic units

geological time scale

landforms

Landform classification

landform type

Minerals are natural elements or compounds formed by geological processes and are the basic building blocks of rocks.

The physical properties of minerals include shape, color, hardness, cleavage, luster, fractures, streaks, transparency and density. The physical properties of minerals are an important basis for identifying minerals

The occurrence of igneous rocks

The structure of igneous rocks

The structure of igneous rocks

Classification of igneous rocks

Common igneous rocks

Material composition of sedimentary rocks

structure of sedimentary rocks

structure of sedimentary rocks

Sedimentary Rock Classification

Several common sedimentary rocks

Mineral composition of metamorphic rocks

The structure of metamorphic rocks

The structure of metamorphic rocks

Classification of metamorphic rocks

common metamorphic rocks

Identification of igneous rocks

Identification of sedimentary rocks

Identification of metamorphic rocks