Li Siguang (Chinese: 李四光) (1889-1971), is the founder of China's geomechanics. He is of the Mongol ethnic group in China. He made outstanding contribution to changing the situation of "oil-deficiency" in the country, enabling the large-scale development of oil fields to raise the country to the ranks of the world major oil producers. Geomechanics is the study of the engineering behaviour of soil and rock. ... Ethnic Mongolians in China (Chinese: 蒙古族) are citizens of the Peoples Republic of China who are ethnically Mogolian. ...

A native of Huanggang, Hubei, Li studied in Japan and the United States in his early years. He became a geological professor at Peking University upon his return from abroad in 1920. After the People's Republic of China was established, Li held the positions of deputy president of the Chinese Academy of Sciences and minister of geology. Huanggang City (黃冈) is a major municipality (known as a Prefecture until 1995) in eastern Hubei Province, China. ... Peking University (Traditional Chinese: ; Simplified Chinese: ; pinyin: BÄ›ijÄ«ng Dàxué), colloquially known in Chinese as Beida (北大, BÄ›idà), was established in 1898, and is one of the oldest universities in China. ... The Chinese Academy of Sciences (Chinese: 中国科学院; pinyin: Zhōngguó KÄ“xuéyuàn), formerly known as Academia Sinica (not to be confused with Taiwans Academia Sinica currently headquartered in Taipei which shares the same root), is the national academy for the natural sciences of the Peoples Republic of... World geologic provinces Oceanic crust  0-20 Ma  20-65 Ma  >65 Ma Geologic provinces  Shield  Platform  Orogen  Basin  Large igneous province  Extended crust Geology (from Greek γη- (ge-, the earth) and λογος (logos, word, reason))[1] is the science and study of the solid matter of a celestial body, its composition...