The Willaura Salinity Province is a low-lying basalt (older phase volcanics) flood plain, which lies between the Grampians Ranges to the west and the Hopkins River to the east. Multiple drainage basins fed by runoff from the Grampians Ranges have developed on the basalt surface, many of which are naturally saline through high watertables and restricted outflow. Many have an aeolian lunette on the eastern shoreline which is also indicative of ephemeral and sometimes saline lakes. The Province is a complex landscape of local to intermediate Groundwater Flow Systems with a large presence of primary salinity features. |
Catchment Management Region: | GLENELG-HOPKINS |
Priority Status: | High |
Province Area: | 103,390 ha |
Recorded Soil Salinity Area 1: | 2,916 ha |
Dominant Surface Geology Type: | Sedimentary |
Influence of Geological Structure on Salinity Occurrence/s: | None |
Relevant Geomorphological Mapping Units (GMUs): | 2.1.X, 2.2.3 |
Predominant Groundwater Flow Systems (GFSs): | Local & Local/Intermediate |
Relevant Irrigation Areas: | N/A |