(Table 4) Thorium 230 excess and Thorium 230 normalized sediment fluxes of se...

230Thxs corrected for decay and assuming a 238U/232Th ratio of R=0.5, sediment focussing factors assuming dry bulk density of 0.5g/cm**3, and 230Th normalized sediment fluxes.经衰变校正的过剩钍-230（230Thxs），且假设238铀/232钍（238U/232Th）比值为R=0.5；以干容重（dry bulk density）0.5g/cm³为前提的沉积物聚焦因子（sediment focussing factors）；以及经230钍（230Th）归一化的沉积物通量。