Global climate and environmental changes and regional responses are hot topics of widely concerned in Geosciences areas. In order to reveal the paleoenvironmental information of red clay sediments in Hengyang Basin, major elements, trace elements and Electron Spin Resonance ( ESR) dating of red clay samples from the Gaoxing profile were measured and analyzed. The results showed that: (1) SiO_2,Al_2O_3 and Fe_2O_3 were the main components of major element oxides in red clay profile, and their total content was 89.63%. With slightly more than 1 % , the contents of MgO, K_2O, CaO and Na_2O were v...