Abstract: Hulu Cave, 16km to the east of the centre of Nanjing ( 32°N, 119°E) , with the discovery of hominid cranium and an abundance of mammal fossils, is considered as one of the mo st important paleoanthropological sites in China. The fossil o f Nanjing Man w ill provide important evidence for human evolution.
A stalagmite developed o n the capping flow-stone layer of the Hulu cave has been dated by U-series method, giving an age rang e of 417_ 207ka. While the age result of its core ( TSX, 417+ ∞- 74 ka) indicates the possibility of a still older age of the site, the study o n the paleoclimatic strategraphy tends to place the travertine layer a tδ18 O Stag e 11. Therefore, the fossil containing layer ca n be roughly correlated with 8th-9th Layer o f Zhoukoudian Palaeoanthropological Cave.

Key words: Homo erectus, Stalagmite, U-series dating , Tangshan Cave