In the economic field, along the Yalu River, there are one economic and technological development zone, two new and high-tech development zones, one industrial processing zone and one border trade zone, all approved b...In the economic field, along the Yalu River, there are one economic and technological development zone, two new and high-tech development zones, one industrial processing zone and one border trade zone, all approved by the state, and seven other development zones that展开更多
The Ordovician Changtu Fauna is recently discovered in the Xia' ertai and Hulan Groups in northernLiaoning-central Jilin. The fauna, containing 10 genera and 14 species (including 3 new genera, 9 new speciesand an...The Ordovician Changtu Fauna is recently discovered in the Xia' ertai and Hulan Groups in northernLiaoning-central Jilin. The fauna, containing 10 genera and 14 species (including 3 new genera, 9 new speciesand an unidentified species), is closely related in evolution with the Early Cambrian Qinghezhen Fauna. Thediscovery of this fauna is significant to the study on the age of the strata, Ordovician biostratigraphy and geo-logical evolution of the tectonostratigraphical terrane on the northern margin of the Sino-Korean plate.展开更多
文摘In the economic field, along the Yalu River, there are one economic and technological development zone, two new and high-tech development zones, one industrial processing zone and one border trade zone, all approved by the state, and seven other development zones that
文摘The Ordovician Changtu Fauna is recently discovered in the Xia' ertai and Hulan Groups in northernLiaoning-central Jilin. The fauna, containing 10 genera and 14 species (including 3 new genera, 9 new speciesand an unidentified species), is closely related in evolution with the Early Cambrian Qinghezhen Fauna. Thediscovery of this fauna is significant to the study on the age of the strata, Ordovician biostratigraphy and geo-logical evolution of the tectonostratigraphical terrane on the northern margin of the Sino-Korean plate.