Regolith of the Cape York Peninsula, North Queensland (CYPLUS project)

This map was compiled at 1:250,000. Each polygon has regolith and landform types as minimum attributes. The dataset contains the arc/info files, a copy of the CYPLUS report, and a copy of the GA regolith mapping handbook.Regolith in the CYPLUS area in North Queensland consists of both in situ weathered bedrock and transported materials. In situ weathered bedrock includes:1. Deep weathering profiles with bauxite, mottled and pallid zones, found on remnant land surfaces2. Residual sand over moderately weathered saprolite in areas of relatively low geomorphic activity3. Thin soils lying directly on slightly weathered or unweathered bedrock on steeper slopes and unstable areasTransported regolith includes:1. Large areas of alluvium in fans in the east, and a small area of slightly dissected fan alluvium in the south west2. Narrow strips of alluvium, with occasional terraces, along the major rivers3. Coastal sediments (beach ridges and estuarine sediments)4. Small areas of colluvium in footslopes below steeper hill slopesIron cementing forms immature ferricrete in a few locations. Siliceous cementing is more widespread, both in present valley floors, and as silcrete in alluvium that now caps small remnant land surfaces.