Figure F6. Downhole plots of smear slide estimates (see "Site 1208 Smear Slides" p.43) of percent total biogenic silica (right) and percent total quartz and feldspar (left). Biogenic silica includes diatoms, radiolarians, sponge spicules, and silicoflagellates. The feldspar total may include some grains of volcanic origin as well. Note that these plots do not include "trace" amounts.

Figure F6. Downhole plots of smear slide estimates (see "Site 1208 Smear Slides") of percent total biogenic silica (right) and percent total quartz and feldspar (left). Biogenic silica includes diatoms, radiolarians, sponge spicules, and silicoflagellates. The feldspar total may include some grains of volcanic origin as well. Note that these plots do not include "trace" amounts.