The Guanzhong Basin in the transitional zone of theQinling orogenic belt and the southern margin of theOrdos Basin has been extensively studied in recent years.
The Permian global mass extinction events and the eruption of the Emeishan flood basalts in the Upper Yangtze region should display certain responses during the
<正>Objective The sediment provenances of the thick Quaternary Loess-Paleosol sequences of the Chinese Loess Plateau can provide clues to the evolution of the p