Monday, 8 February 2016

Layered Sandstone and Shale Bedrock

Bedding marks show the evidence of  the landmass being bent during mountain building with distinct angle of dipping layers. These almost horizontal layered rocks 10.7m to 12.7m below the ground level represent either the crest or the top of the chain of mountain formed. The rocks are mainly light grey SANDSTONE but dark grey SHALE are also found in thin layers. Take note that there is no such thing as homogeneous in the rock as weathering sets in. It is important therefore for Civil Engineers to study and analyse the rock carefully before providing any foundation on it, especially high rise building.






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