The Ravenswood_Nuggetty Salinity Province is dominated by a circular landform developed from a deeply weathered Devonian granitic pluton, enclosed by the remnants of the surrounding metamorphic aureole. These remnants form the ridges that make up the landscape’s high points. The ridges converge the drainage patterns onto the weathered pluton that, when coupled with its restricted drainage, develops a shallow watertable particularly at the valley floor. Dryland salinity is mostly associated with local to intermediate scale Groundwater Flow Systems in the deeply weathered granitic and colluvial landscape, and to a lesser extent with similar scale systems in the weathered, fractured Palaeozoic meta-sediments. It typically occurs within the low-lying areas and deeply incised drainage lines of the weathered granite and to a lesser extent at ‘break-of-slope’ locations in the meta-sediments. |
Catchment Management Region: | NORTH CENTRAL |
Priority Status: | High |
Province Area: | 43,780 ha |
Recorded Soil Salinity Area 1: | 721 ha |
Dominant Surface Geology Type: | Intrusive |
Influence of Geological Structure on Salinity Occurrence/s: | None |
Relevant Geomorphological Mapping Units (GMUs): | 2.1.4 |
Predominant Groundwater Flow Systems (GFSs): | Local/Intermediate |
Relevant Irrigation Areas: | N/A |