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Page:Transactions of the Geological Society, 1st series, vol. 1.djvu/74

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62
Mr. H. Holland on the Cheshire Rock-Salt District.
Section of the Strata sunk through to the second Bed of Rock-Salt,
at Wiston, near Northwich
.
No. Nature of the Strata. yards feet inch.
1 Calcareous Marl. 5
2 Indurated red Clay 1 1 6
3 Indurated blue Clay with Sand 2 1
4 Argillaceous Marl 1 2
5 Indurated blue Clay 1
6 Red Clay, with Sulphate of Lime irregularly intersecting it 1 1
7 Indurated blue and brown Clay, with grains of Sulphate of Lime interspersed 1 1
8 Indurated brown Clay, with Sulphate of Lime crystallized in regularity masses, and in large proportion 4
9 Indurated blue Clay, laminated with Sulphate of Lime 1 1 6
10 Argillaceous Marl 1 1
11 Indurated brown Clay, laminated with with Suplhate of Lime 1
12 Indurated blue Clay, with laminæ of Sulphate of Lime 1
13 Indurated red and blue Clay 4
14 Indurated brown Clay, with Sand and Sulphate of Lime irregularly interspersed through it. The fresh water (360 gallons per minute) finds its way through holes in the stratum, and has its level at sixteen yards from the surface 4 1
15 Argillaceous Marl 1 2
16 Indurated blue Clay with Sand, and grains of Sulphate of Lime 1 9
17 Indurated brown Clay, with a little Sulphate of Lime 5
18 Indurated blue Clay, with grains of Sulphate of Lime 1 6
19 Indurated brown Clay, with Sulphate of Lime 2 1
20 The first Bed of Rock-salt 25
21 Layers of indurated Clay, with veins of Rock Salt running through them 10 1 6
─── ─── ───
22 The second Bed of Rock Salt, which has been sunk into thirty-five or thirty-six yards. 76 2 9