Qingdao is located in the northeast margin of Jiaonan Uplift and the south-central part of Jiaolai Depression, and is a secondary structural unit of Neocathaysian Uplift. The whole Paleozoic strata and some Mesozoic strata are missing in this area, but the volcanic rocks of Cretaceous Qingshan Formation are developed and widely exposed in Qingdao.
Magmatic rocks are mainly Yuejishan gneiss granite in Jiaonan period of Proterozoic and Ai Shan granodiorite and Laoshan granite in late Yanshanian period of Mesozoic. The urban areas are all located on this granite, and the building foundation conditions are excellent. The structure is mainly fault structure. Since Tertiary, this area has been dominated by fault block uplift with stable integrity, with a small overall increase.
Extended data:
In the geographical distribution division of vertebrates, Qingdao belongs to the Palaearctic North China Huanghuai Plain subregion. Affected by the warm temperate ocean monsoon, the climate is warm and humid, and the vegetation grows well, which is suitable for animals to inhabit and reproduce, but there are few large wild mammals. Modern wild vertebrates in Qingdao are mostly small animals, but there are no large mammals or large herbivores.
Mammals include squirrels, rats, rabbits, dogs, weasels, bats, reptiles and so on. Amphibians include Ranidae, Bufonidae, Bufonidae, Ranidae, etc. Reptiles include lizards, snakes, vipers, turtles, turtles and so on. There are 66 species of rare animals under national first-class and second-class protection, including 52 species under first-class protection. The special animal is the fairy embryo fish produced in Baisha River. There are many kinds of wild invertebrates in this area, which can be roughly divided into forest insects and agricultural insects.
Baidu Encyclopedia-Qingdao