Speleanstalagmitedatingusingthermalionizationmassspectrometry(TIMS)onthebasisofU-Thdisequilibriumhascontributedgreatlytopaleoclimatology,paleo-environment,paleo-oceanology,archaeologyaswellasmodernvolcano-magmatismstudies.Resultsofourstudiesonstalagmitechronologyarealsoreportedinthispaper.