Geology

The landscapes of the Moggill Creek Catchment have been developed from:

  1. The metamorphosed greywacke, shales, siltstones and phyllites and interbedded volcanics of the Neranleigh – Fernvale beds and Bunya Phyllites. Most of the catchment is developed on the Neranleigh – Fernvale beds, with Bunya Phyllites limited to the NE edge of the Moggill Creek Catchment.
  2. The Brookfield volcanics which occur mainly in the mid to lower Moggill Creek  catchment.
  3. Alluvium that has been deposited by floods over very long time periods.

The weathering of these different rock types has resulted in a range of different soils which may occur in similar topographic positions across the landscape.

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