Characteristics and formed environment of the Devonian in the Nan'guang area , Jinghong City, southwestern Ynnan

The Devonian's section in Nanguan area of Jinghong, southwestern Yunnan, which clearly showed continue transform from flysch to molasese dimentary formation.There are continental resource and volcanic clastics in the sediments, and it this area had been happened orogeny with volcanic eruption action during Middle-Late Devonian . The discover will provid some useful new evidence for understanding geotectonic evolution of southern Lancangjiang Valley.