Geology generally refers to the nature and characteristics of the earth. Mainly refers to the material composition, structure, structure and development history of the earth. , including the zonal differentiation of the earth, physical properties, chemical properties, rock properties, mineral composition, the occurrence and contact relationship between rock and rock, the history of tectonic development, biological evolution, climate change, and the occurrence and distribution of mineral resources. In China, the word "geology" first appeared in Wang Bi (226 ~ 249), a book of changes, but it was a philosophical concept at that time. The word "geology" in the geographical encyclopedia published in 1853 (the third year of Xianfeng in Qing Dynasty) is the earliest concept with scientific significance that can be seen in China at present.