Monavale is an unusual geological site - quite unlike the red ironstones of the surrounding hills (Meyrick Park, Sentosa, Avondale Ridge). It is made up of a calcium carbonate metamorphic parent rock which has a grey appearance, and breaks down into a fine grey powder. The effect on our soils is to make them rather alkaline, unlike the more acid ironstones around us. This has resulted in relatively unusual indigenous plant communities becoming established in the area that are found nowhere else in Harare. For example, distinctive orchids and aloes are found growing on bare rock surfaces - some of which are endemic to Monavale. Photos by Phillipa Marret
Posted on: Tue, 09 Sep 2014 06:43:54 +0000
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