Launceston geology - dolerite talus polygons

This dataset (geology_doleritetalus_poly.shp) contains polygons delineating areas of dolerite talus in the Launceston area as part of the Tasmanian Landslide Hazard Map Series. The data within this dataset is extracted directly from the geological polylgon dataset based on a query on the field SYMBOL. This unit is depicted on the rockfall map to indicate areas that could be rock fall source zones if disturbed.