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Title: | Tufa Rock |
Author: | Niebergall, Ernst |
Description: | Tufa rock is a porous rock formed when water with a heavy lime content evaporates. Abundant limestone deposits, lots of underground rivers, sink holes - like the Blue Hole - and marshes around Castalia made a fertile ground for the growth of tufa rock. Evaporating water left mineral deposits that encrusted twigs, small pebbles, etc. and grew into unique rock formations. |
Permanent Link: | http://hdl.handle.net/2374.OX/2018 |
Date: | 19, 1909 |
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348.20.u158.jpg | 1.680Mb | JPEG image |
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