OCR Text |
Show 0.001 0.001 interpluvial ( Stage 3) pluvial ( Stage 4) interpluvial ( Stage 5) pluvial ( Stage 6) interpluvial ( Stage 7) - 1.0 Figure 2. Correspondence of Chewaucan lake level indicators to marine oxygen isotope curve. Susceptibility ( K) in the Chewaucan sediments is directly related to the concentration of magnetite. Salinity index is a ratio of salinity- tolerant to salinity- intolerant ostracodes ( e. g., Palacios- Fest et al, 1993). Silt/ clay ratio was measured with a laser- granulometer and sieve/ pipette analysis ( Erbes, 1996). Marine 0- 18 data are from Martinson et al. ( 1987). |