• Geological process Author: Zhang Shizong time: 2015-11-30 9:26:03 & nbsp; geological process refers to the continuous change and formation of crustal composition, crustal structure and surface morphology due to the action of certain energy (external force and internal force). &Nbsp; geological external force & nbsp; the force of energy source producing geological process. Internal energy comes from the earth's interior, which mainly includes geothermal energy, gravity energy, earth rotation energy, chemical energy and crystallization energy. The external energy from the outside of the earth is called external energy, which mainly includes solar radiant heat, potential energy, tidal energy and biological energy. &According to different ways, internal forces can be divided into weathering, including physical action, chemical action and biological action. Denudation, including mechanical
  • What is a Geopark? What is a Geopark? Geopark is a unique natural area with special geological scientific significance, rare natural properties, high aesthetic value, a certain scale and distribution of geological heritage landscape as the main body, and the integration of other natural landscape and human landscape. What is the main purpose of establishing a Geopark? What is the main purpose of establishing a Geopark? There are three main purposes of establishing a Geopark: protecting geological relics, popularizing geological knowledge, developing tourism and promoting local economic development. According to the management level, geoparks are divided into several levels. What are their names? According to the management level, geoparks are divided into several levels. What are their names? Divided into four levels: county level geoparks
  • Geology and geomorphology of Qingshuihe County & nbsp; & nbsp; & nbsp; & nbsp; 1. Geology & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; laoniuwan Geopark is located at the southernmost end of dantaizi Township, Qingshuihe County, at the junction of Inner Mongolia and Shanxi at the north end of Shanxi Shaanxi Grand Canyon of the Yellow River, across yangjiachuan River and lougedan of huanglongchi Township, Pianguan County, Shanxi Province, across the west side of the Yellow River and weijiamao of Zhungeer banner, which is the intersection of the Yellow River and the Great Wall. &1.1 regional geological structure characteristics laoniuwan Geopark is located in the northwest margin of Shanxi platform anticline where Shanxi platform anticline and Ordos platform syncline of North China block border, and the northern part is connected with Inner Mongolia earth axis. The area is characterized by platform structure. From the middle Archean (about 30
  • Director Zheng Yuan - development status of geoparks in China 2015-05-26 01:42
  • &1. Danxia landform is the general name of Fangshan, Qifeng, cliff, cave and pillar which are composed of thick red sandstone and conglomerate. It is one of the rock landform types. It is mainly developed in the red continental strata with horizontal or gently inclined attitude from Jurassic to tertiary. Danxia Mountain in Renhua county, Shaoguan City, Guangdong Province, China is a typical example. It is characterized by flat top, steep slope and gentle foot. The development of Danxia landform started from the Himalayan movement in the late Tertiary, which deformed part of the red beds and uplifted the basin. The red strata are eroded by water, gravity and wind along the vertical joints, forming deep gullies, residual peaks, stone walls and stone walls
  • Granite, the main component of continental crust, is a kind of igneous rock formed by magma condensation below the surface, and its main components are feldspar and quartz.
  • Basalt, one of the three major rocks, is a kind of igneous rock formed by magma ejecting from the earth's surface. Its main composition is sodium aluminosilicate or calcium aluminosilicate. The content of silicon dioxide is about 45-52%. It also contains high iron oxide and magnesium oxide. It is a kind of fine-grained and dense black rock. It is not only the main component of the earth's oceanic crust and the moon's sea, but also the important component of the earth's continental crust and the moon's land.
  • Detour is a normal state in nature, while straight is an abnormal state.
  • Sites of primitive human activities in China
  • Millions of years ago, the top 10 head portraits of human ancestors were exposed!