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OIL SHALES—SCOTTISH CARBONIFEROUS SYSTEM.
249

Scottish Lothians, the exceeding faulted and disturbed nature of the Carboniferous system in this locality would effectually prevent the circulation underground of any quantity of fluid hydrocarbons except within extremely limited areas.

The following is a general section of the oil shale series west of Edinburgh:

Feet.
Strata below base of Carboniferous Limestone series about 400
Raeburns Shale, 3 to 4 feet strata, 190
Mungals Shale, about 1 ft. 9 ins. strata, 170
Coal and Gray cypride Shale 2 ft. "Houston Marl" group 200
Strata laminated sandstones, 240
Fells Shale, 3 to 5 feet, "Broxburn Marl" group, 80 to 270
Broxburn Shale 2½ to 8 feet, "Binney Sandstone" and strata, 450
Dunnet Shale, 6 to 13feet, strata chiefly shales, fire clays, etc. 400
Barracks Shale, resting on the estuarine Burdiehouse
Limestone, 10 to 50 feet thick at places, strata about
 780
Pumpherston Shales, about 6 feet worked.
Apparent thickness of Oil shale series, 3,100

Henry M. Cadell.

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