Figure 1. Large-scale waterblasting of an exposure of the Middle Danian Bryozoan Limestone, Fakse Limestone Quarry, Denmark. 1. The angle of spray is maintained at 90 degrees. 2. The waterblasting creates rapid artificial weathering exposing numerous bryozoans and octocorals (Moltkia isis) (arrows). To the left untreated Bryozoan Limestone is seen. Scale on the folding rule is in cm.