Abstract
BELOW the Alluvial deposit of St. Mary's Island is a very irregular surface of gravel, varying in thickness from 2 to 12 feet, and composed of flints but little rounded, and pebbles of Tertiary Sandstone; beneath the gravel is the Chalk. Now, the success of the Chatham Dockyard Works depends upon the stability of foundations that are built on piles driven into the underlying gravel, through which percolate considerable streams of water; this water must denude the chalk to an appreciable extent and form pot-holes, and the subsidence of the works can but be a matter of time. I can form no idea of the rate at which the Chalk would be denuded undar the above conditions, as I am not aware of any experiments having yet been made on the “Action of Water on Chalk.”
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HART, R. Geology and the Chatham Dockyard. Nature 2, 143 (1870). https://doi.org/10.1038/002143b0
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DOI: https://doi.org/10.1038/002143b0
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