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III.—The Northampton Ironstone Beds in Lincolnshire
Published online by Cambridge University Press: 01 May 2009
Extract
The Ironstone Beds of Oolitic age in Lincolnshire have, during the last four years, yielded not only large quantities of brown hæmatite iron-ore, but some very interesting sections and borings, comprising thirty-one of the latter between four and seven miles to the south of Lincoln, and several extensive openings showing that the beds are much richer at this distance from Lincoln, but that they become very siliceous and pass into a ferruginous sand above Normanton about eighteen miles to the south.
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