Acta scientiarum naturalium Universitatis Pekinensis
YANG Mohan, HOU Guiting, SHI Ge
Liaohe basin is a Cenozoic rift valley with numerous volcanic activities developed in East Depression. Based on the large amount of K-Ar geochronology, petrology and geochemistry data, the Cenozoic volcanic activities in this depression are divided into 4 periods, which are Fangshenpao, Shasan, Shayi and Dongying periods. The Shasan and Dongying periods are two summits of volcanic activities, with accurate isotopic age of 43~38Ma and 32~25Ma respectively. This paper provides an accurate isotopic chronology constraints for the study of Cenozoic tectonic evolution of Bohai basin and Eastern China.
YANG Mohan,HOU Guiting,SHI Ge. K-Ar Geochronology of Cenozoic Volcanic Rocks of East Depression in Liaohe Basin and Its Geological Significance[J].Acta scientiarum naturalium Universitatis Pekinensis, 2006, 42(2): 184-191.
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