. The Quarterly journal of the Geological Society of London. 3) the WThin lies above the Great little below the Great Limestone there is a seam of coal which hasbeen a good deal worked over the north-eastern part of the one pit the coal was followed for some distance under the Whin,where it was found to be gradually deteriorating and at last wasquite caked and worthless. The Whin has then evidently cutthrough the limestone and has here reached the coal. This is alsoevident from the surface-mapping; for on the south-east face of thehill the limestone occurs above the Whin, a


. The Quarterly journal of the Geological Society of London. 3) the WThin lies above the Great little below the Great Limestone there is a seam of coal which hasbeen a good deal worked over the north-eastern part of the one pit the coal was followed for some distance under the Whin,where it was found to be gradually deteriorating and at last wasquite caked and worthless. The Whin has then evidently cutthrough the limestone and has here reached the coal. This is alsoevident from the surface-mapping; for on the south-east face of thehill the limestone occurs above the Whin, and on the south-westthe Whin certainly cuts through the beds, passing through theGreat Limestone and the beds below, and at last underlying thecoal, which lies about 40 or 50 feet below the Great Limestone. The WThin is not seen again until we reach the hill N. of Shield- * Through Northumberland, as far north as the river A In, SaccaminaCarteri, Brady, appears to oocur chiefly in the Four-fathom Limestone. Character of the whin sill of Northumberland. 413.


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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology