Geological Magazine, Bind 8Henry Woodward Cambridge University Press, 1871 |
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appear basalt beds Boulder-clay boulders Brachiopoda British calcareous Carboniferous Chalk character Chillesford clay cliffs Coal Coal-field Coal-measures coast coprolite coral Cretaceous Crinoids Crustacea denudation deposits depth described Devonian district Drift Eocene evidence fauna feet flints formation fossils Gault genera genus Geol GEOLOGICAL MAGAZINE Geological Society Geological Survey geologists Glacial glaciers gneiss granite gravel Greensand hills inch Journ Karoo Lake land Lias Limestone Lower marine marls mass metamorphic miles Millstone Grit mineral Miocene moraine mountains Museum nearly observed occur Old Red Sandstone Oolitic origin paper pebbles period Permian plates portion present Prestwich probably Prof Professor Quart Red Crag Red Sandstone remarks river rocks sand sedimentary seen shales shells side Silurian Sivatherium slope species specimens stones strata stratified surface terraces Tertiary thickness Trilobites Upper valley valves volcanic Wasdale
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Side 154 - RUFUS. Birds of Franklin County, Indiana. (First Annual Report of the Geological Survey of Indiana, made during the year 1869 by ET Cox, State Geologist ; 1869, pp.
Side 74 - ... at an estimate regarding the length of time represented by these rocks. For if we are to determine the age of the stratified rocks from the rate at which they were formed, we must have, not the present quantity of sedimentary rocks, but the present plus the quantity which has been denuded during past ages. In other words, we must have the absolute quantity formed. In many places the missing beds must have been of enormous thickness. The time represented by beds which have disappeared is doubtless,...
Side 443 - Thus, therefore, in either respect this formless state ends on the third day: first, when "the waters were gathered together into one place and the dry land appeared"; secondly, when "the earth brought forth the green herb.
Side 436 - On the Upper Formations of the New Red Sandstone System in Gloucestershire, Worcestershire, and Warwickshire ; showing that the Red or Saliferous Marls, including a peculiar Zone of Sandstone, represent the
Side 197 - Logan to have an aggregate thickness of 3500 feet, it is scarcely an exaggeration to maintain that the quantity of carbon in the Laurentian is equal to that in similar areas of the Carboniferous system.
Side 433 - On the Gravel and Alluvia of S. Wales, and Siluria as distinguished from a northern Drift covering Lancashire, Cheshire, N. Salop, and parts of Worcester and Gloucester.— Proc. Geol. Soc.
Side 432 - On the Structure and Classification of the Transition Rocks of Shropshire, Herefordshire, and part of Wales, and on the Lines of Disturbance which have affected that Series of Deposits, including the Valley of Elevation of Woolhope.
Side 430 - Report of the Commissioners appointed to inquire into the several matters relating to Coal in the United Kingdom,
Side 343 - By P. Martin Duncan, MB Lond., FES, FGS, Professor of Geology in King's College, London. • The author first referred to the synonyms and geological distribution of Caryophyllia cylindracea, Eeuss, which has hitherto been regarded as peculiar to the "White Chalk, and as necessarily an extinct form, inasmuch as it belonged to a group possessing only four cycles of septa in six systems, one of the systems being generally incomplete. The distribution of the...
Side 517 - Academy of Stockholm ; whilst, as a compliment to Denmark, on whose territory they were found, the second largest, weighing 20,000 Ibs., or about 9 tons, has been presented to the museum of Copenhagen. Several of these specimens have been submitted to chemical analysis, which proved them to contain nearly 5 per cent of nickel, with from...