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      girraween > geology > the sculptured landscape > weathering > biological


Biological Weathering continued...


Moss and lichen growing amongst some small exfoliated flakes.

Moss and lichen growing amongst some
small exfoliated flakes.




  Small plants growing in a gnamma.

Moss and other small plants growing in the sand
and clay on the edge of a shallow gnamma,
Underground Creek.
Algae stains the granite black.
© Girraween National Park, 2009.

Algae stains the granite black.



  A veritable garden is growing on top of this boulder.

A veritable garden is growing on top of this boulder:
mosses, lichens, grasses, ferns and orchids.
There are many different kinds of lichen that grow on the rocks of Girraween.

There are many different kinds of lichen
that grow on the rocks of Girraween.




  Tree roots and moss growing in a crack in a granite pavement, near Bald Rock Creek.

Tree roots and moss growing in a crack
in a granite pavement, near Bald Rock Creek.
More tree roots in a crack - an extreme example.
© Kell Nielsen, 2009.

More tree roots in a crack
- an extreme example.



Dead plant material trapped in a crack will break down to form a rich humus.

Dead plant material trapped in a crack
will break down to form a rich humus.
Plants growing in cracks in boulders are a common sight in Girraween.

Plants growing in cracks in boulders
are a common sight in Girraween.
Next...   Erosion




© Vanessa and Chris Ryan, 2009 | Copyright Details and Disclaimer
Last updated: 29th October 2013