Cerium is one of multivalent rear earth elements, which can transfer from trivalence to tretavalence at oxidizing environment. This process may cause variable d
This study is the first to report the radiocarbon ages, mineralogical, morphological, geochemical and stable isotope compositions of calcretes from Neogene sedi
The long-term dumping of coal waste piles has caused serious environmental problems. Release of trace elements(including rare earth elements, REEs) from coal sp