Geology of East Somerset and the Bristol Coal-fields: Or, Descriptions of the Rocks Comprised in Sheet 19, Part of Sheet 35, and Adjoining Portions of Sheets 18, 20, and 21, of the (one Inch) Geological Survey Map of EnglandH.M. Stationery Office, 1876 - 271 sider |
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2nd series Alluvium Ammonites Assoc Avon Bath BECHE Blue clay Brit BUCKLAND and CONYBEARE calamine Carbonate Carboniferous Limestone cavern Chalk Chedder Chert Cliff Clifton Coal-field Coal-measures containing Cotham Cottesw Cotteswold denudation deposits district Dolomitic Dolomitic Conglomerate Downhead east East Harptree England escarpment ETHERIDGE exposed Farm fault Forest Marble formation Fossil Frome Fuller's Earth Geol Geological Survey Gloucestershire gravel H. W. BRISTOW Harptree Hist Ibid inches Inferior Oolite Journ junction Keuper Liassic lime London Lower Lias Marl marly Mendip Hills Middle Lias Midford Millstone Grit mineral MOORE neighbourhood Nettlebridge occur Old Red Sandstone pebbles Penarth beds Pennant Grit Phil Proc PROF quarry Quart Radstock Railway Red Marl Rhætic river road rocks sandy seam shales Sheet shells Shepton Mallet Somerset Somerset Arch Somersetshire stone strata Sun bed surface thin Tortworth Trans Upper Lias USSHER veins White Lias
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Side 217 - Fodinae regales; or the history laws and places of the chief mines and mineral works in England and Wales.
Side 254 - First Report of the Commissioners appointed to inquire into the best means of preventing the pollution of Rivers (River Thames).
Side 42 - ... the coal-measures, depressed to the level of the old red sandstone, appear to occupy its place, and seem to dip beneath mountain limestone, on which, in fact, they repose.
Side 184 - ... to the Trias. The nature and succession of these rocks penetrated by the Bath waters was first made out by the late William Smith, in 1817, when a shaft was sunk in the vicinity in search for coal. The shock which opened a communication through the upper rocks may have been of a much later date than that which fractured the older and underlying strata; for there is a tendency in the earth's crust to yield most readily along lines of ancient fracture, which constitute the points of least resistance...
Side 184 - I have therefore little doubt that the Bath springs, like most other thermal waters, mark the site of some great convulsion and fracture which took place in the crust of the earth at some former period — perhaps not a very remote one, geologically speaking. The uppermost part of the rent through which the hot water rises is situated in horizontal strata of Lias, and Trias, 300 feet thick; and...
Side 246 - On the Physical Structure of West Somerset and North Devon, and on the Palaeontological Value of the Devonian Fossils.
Side 185 - ... lead, and many others ; a slight trace of copper in the Bath waters being exceptional. Nevertheless, there is a strong presumption that there exists some relationship between the action of thermal waters and the filling of rents with metallic ores. The component elements of these ores may, in the first instance, rise from great depths in a state of sublimation or of solution in intensely heated water, and may then be precipitated on the walls of a fissure as soon as the ascending vapors or fluids...
Side 215 - De la Rive.— A Treatise on Electricity, in Theory and Practice. By A. DE LA RIVE, Professor in the Academy of Geneva.
Side 123 - ... commencement of the inferior oolite. The holes which were observed by Professor John Phillips, in 1829, are of two kinds, one long, slender, and often sinuous, extending several inches into the carboniferous limestone, the other entering that rock a short distance only. In the former we find no traces of shells, in the latter we often discover them, in the situations in which they lived. In both holes we find the matter of the inferior oolite, which entered them from above at the time of its...
Side 28 - The Millstone Grit ; its Fossils, and the relation it bears to other groups of rocks; more particularly as it occurs in the Bristol district, and southwest of England generally.