I am mapping an underwater cave and cannot find symbols for several items. Perhaps the brain trust here can advise:
1. What is the symbol for an air bell? The UIS water symbol is inappropriate on a plan views and profiles as it would result in a LOT of hatching.
2. How does one depict ceiling and floor depths? Ceiling depth is shown as a number with a horiz bar over it, so where I have ceiling and floor depths I am planning to have a horiz bar over ceiling depth number over floor depth number.
3. How does one depict a mineral seep? These almost always occur from below the intersection of a cave wall and sediment floor, are tiny, have imperceptible flow, and are marked by interesting flows that are colored reddish-brown or whitish-blue. I assume the flows are bacterial biofilms.
4. Is there a symbol set for underwater caves?
Thanks!