Climbing and SRT . Climbing and SRT . Signal given to those below that something is falling. Only useful if there is voice contact between the top and bottom of a pitch. Climbing and SRT .
Gradations can occur, eg. where a thin bench breaks free and starts to roll downwards.
Lava Cave term . A horizontal shelf along the wall of a lava tunnel, generally close to floor level. It is formed at the edge of a lava flow level, by cooling and solidification of the edge followed by a lowering of the level. Lava Cave term . The ocean floor, from the low water mark to the greatest depths.