The Geology of North-west Lincolnshire

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Abstract
T he locality to which I would draw attention this evening is the extreme north-west corner of the county of Lincoln—the district, in short, as the rough map (fig. 1) will show, bounded by three rivers, the well-known Humber and Trent and, eastwards, the little Ancholme—this last a strange name to modern ears, but one which has been honoured by the mention of that old English classic, Isaac Walton. It is a corner of the land unknown to fame; but we are now becoming celebrated commercially by the recent discovery of a most extensive and valuable deposit of iron-ore, respecting which I shall have something to say by and by. But, besides this commercial importance thrust upon us, the district has a special value in the eyes of the geologist as being a middle link in the chain of the Jurassic strata, between their development in the south and their somewhat dissimilar appearance on the Yorkshire coast. The labours of Mr. Judd and Mr. Sharpe, in the southern portion of the county, have brought into clear light the commencement of this variation. But the state of things in this northern corner has not as yet been brought before your notice. The accompanying section (fig. 2) gives a general idea of the district. Three escarpments are represented, and two long sloping plains between them. The westernmost scarp is capped with Lower Lias ( Bucklandi –zone), the middle one with Lincolnshire Limestone; and the easternmost is the Chalk Wold. Both these latter elevations are characteristic

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