Geological MagazineHenry Woodward Cambridge University Press, 1879 - Geology |
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Page 17
... shales . BARREN ISLAND , Lat . 12 ° 17 ′ N .; Long . 93 ° 54 ′ E. History of the Island derived from Previous Notices . - In the table appended I have given a précis of all that has been published on the subject of Barren Island ; but a ...
... shales . BARREN ISLAND , Lat . 12 ° 17 ′ N .; Long . 93 ° 54 ′ E. History of the Island derived from Previous Notices . - In the table appended I have given a précis of all that has been published on the subject of Barren Island ; but a ...
Page 39
... shales ( = Old Red Sandstone , etc. ) is not quite clear , for it is suggestive of a fault between what he there marks as " Old Red Sandstone , " and the Dingle or Glengariff grits . Jukes , it should be observed , thought it expedient ...
... shales ( = Old Red Sandstone , etc. ) is not quite clear , for it is suggestive of a fault between what he there marks as " Old Red Sandstone , " and the Dingle or Glengariff grits . Jukes , it should be observed , thought it expedient ...
Page 46
... shales were crumpled up like the leaves of a book , but being of a hard and very inelastic nature , the grit rocks ... shale , as it became elevated to the surface , would carry those which had preceded it further and further from the ...
... shales were crumpled up like the leaves of a book , but being of a hard and very inelastic nature , the grit rocks ... shale , as it became elevated to the surface , would carry those which had preceded it further and further from the ...
Page 47
... shale , or clay , but always on sandstone . " I have myself noticed that peat is very often , not to say generally , under- lain by a bed of yellowish clay , which forcibly reminded me of the underclay of a coal - seam . J. R. DAKYNS ...
... shale , or clay , but always on sandstone . " I have myself noticed that peat is very often , not to say generally , under- lain by a bed of yellowish clay , which forcibly reminded me of the underclay of a coal - seam . J. R. DAKYNS ...
Page 50
... shales form a rough circular framework to the older and mountain - forming rocks of Silurian ( or Silurian and Cambrian ) age , as shown in the Sketch- Map ( Plate II . ) . We will now consider in succession the physical conditions ...
... shales form a rough circular framework to the older and mountain - forming rocks of Silurian ( or Silurian and Cambrian ) age , as shown in the Sketch- Map ( Plate II . ) . We will now consider in succession the physical conditions ...
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Common terms and phrases
angular appear basalt base beds Boulder-clay boulders British Cambrian Carboniferous character clay cliffs Coal-measures Coast of Sumatra conglomerate containing corallites corals Cretaceous crystalline denudation deposits described Devonian diamonds Dingle district drift elevation Eocene evidence fauna feet felspar formation fossil fragments gabbro genus Geol geologists glacial glaciers Glengariff granite gravel grits hills hornblende island Journ Lake Limestone Lower M'Coy marine Marl mass Mesozoic metamorphic miles mineral Miocene mountain observed occur Old Red Sandstone origin Palæozoic Paleozoic paper pebbles period Permian Phillips sp plates portion Precambrian present probably Prof quartz raised beach recent referred ridges river rocks sand schists serpentine shales shell side Silurian Skiddaw Skiddaw Slates slate species specimens stones strata Sumatra surface Tertiary thickness tin ground Triassic unconformity Upper Silurian valley volcanic Wales whorls Woodw
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Page 565 - NICHOLSON. A Manual of Zoology, for the use of Students. With a General Introduction on the Principles of Zoology. By HENRY ALLEYNE NICHOLSON, MD, D.Sc., FLS, FGS, Regius Professor of Natural History in the University of Aberdeen.
Page 79 - The Carucata, which is also to be interpreted the plough-land, was as much arable as could be managed with one plough and the beasts belonging thereto in a year ; having meadow, pasture, and houses for the house-holders and cattle belonging to it...
Page 33 - Florence of Worcester says : — "On the third day of the nones of Nov. 1099, the sea came out upon the shore, and buried towns and men very many, and oxen and sheep innumerable.
Page 58 - Thus there cannot be the shadow of a doubt as to the length of time which must have elapsed between the close of the Upper Silurian and the commencement of the Carboniferous Period, and of the greatness of the work accomplished in that time.
Page 46 - By JW Davis, Esq., FGS The author described some fossil remains of fish obtained from the bone-bed immediately above the " Better-bed Coal " referred to by him in a former paper (see QJGS vol. xxxii. p. 332). The fossils described included Ichthyodorulites belonging to 4 species, namely : — Pleurodus affinit, a species named, but not described or figured by Agassiz ; Hoplonehus elegans, gen.
Page 381 - On the Cambrian (Sedgw.) and Silurian beds of the Dee Valley, as compared with those of the Lake-district.
Page 156 - The trunks of the trees gradually decay until they are converted into a blackish-brown substance resembling peat, but which still retains more or less of the fibrous structure of the wood ; and layers of this often alternate with layers of clay and sand, the whole being penetrated, to the depth of four or five yards or more, by the long fibrous roots of the willows.
Page 30 - because the lands covered by seas were originally at different altitudes, that the waters have risen, or subsided, or receded from some parts and inundated others. But the reason is, that the same land is sometimes raised up and sometimes depressed, and the sea also is simultaneously raised and depressed, so that it either overflows or returns into its own place again.
Page 46 - Turbinarias (2); Tabulata (1). The paper concluded with remarks on the genera and species represented, from which it appeared that the Coral fauna of Haldon is the northern expression of that of the French and Central European deposits, which are the equivalents of the British Upper Greensand. The Haldon deposit was formed in shallow water, and the corals grew upon the rolled debris of the age. 2. " Notes on Pleurodon affinis, sp. iued., Agassiz, and description of three spines of Cestracionts from...
Page 30 - ... at different altitudes, that the waters have risen, or subsided, or receded from some parts and inundated others. But the reason is, that the same land is sometimes raised up and sometimes depressed, and the sea also is simultaneously raised and depressed, so that it either overflows or returns into its own place again. We must, therefore, ascribe the cause to the ground, either to that ground which is under the sea, or to that which becomes flooded by it, but rather to that which lies beneath...