GeoGraph - photograph every grid square

Lower Brook Bottom Calcareous Precipitate

This precipitate has formed as a result of the lime-rich water seeping through a mound of burnt lime that has filled the valley in this location. This marshy part of the deposit is different to the brilliant white upper location because the lime rich water has lost so much lime by this point that it is now possible for life to colonise. This photograph shows this in the form of marsh grasses and mosses, however if you look closer you can see algae and bacteria have also colonised these lower reaches (see Link - Album: 2004 August Dissertation Field Work)

Also see my google earth entry

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