Laiwu District is located in the middle of Shandong Province, in the hinterland of Qilu, at the east foot of Taishan Mountain, adjacent to Zhangqiu District of Jinan City in the north, Boshan District and Yiyuan County of Zibo City in the east, Gangcheng District and xintai city of Jinan City in the south and Daiyue District of Tai 'an City in the west, with a total area of 1739 square kilometers.

The geological structure in Laiwu area is controlled by the latitudinal structure in central Shandong and the spiral structure in western Shandong. The structural features are mainly faults, followed by folds. Intrusive rocks in China are well developed and widely distributed throughout the country. The types of rocks are complex, mainly acidic rocks, followed by intermediate-acidic rocks, and a few are basic and ultrabasic rocks. The boundary strata are well developed, including Taishan Group, Cambrian, Ordovician, Carboniferous, Permian, Jurassic, Cretaceous, Tertiary and Quaternary.

Laiwu physical geography

Laiwu area is a semi-circular basin with gentle south and steep north and convex north. The north, east and south are surrounded by mountains, the mountain in the north is the remnant of Mount Tai, the mountain in the south is the remnant of Culai Mountain, the west is open, and the middle is the low and undulating Tailai Plain, which extends from Changbuling to Tai 'an. The highest point in China is 994 meters above sea level, and the lowest point is 148 meters above sea level.

There are more than 1000 hills in China, of which 3 are above 900 meters above sea level. The northern part is the remnant vein of Mount Tai, which runs nearly east-west. The southern part is the Culai Mountain residual vein, and its trend is roughly parallel to the northern Taishan residual vein. The two mountains are all middle and low mountains with steep slopes and strong cutting.

There are more than 300 rivers in China, 98% of which belong to Dawen River system of the Yellow River Basin and 2% to He Zi River system. The boundary and source of Wen and Zi rivers are at the northern foot of Yuanshan Mountain. Dawen River system includes Mouwen River, Wenying River (also known as Huihe River), Fangxia River, Biblical River, Niuquan River, Wennan River, Xinfu River and Lianhua River, all of which are seasonal rivers with short sources and rapid flows.

Reference to the above content: Baidu Encyclopedia-Laiwu District