The Quarterly Journal of the Geological Society of London, 23권The Society, 1867 Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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252 페이지
... Devonian or Ilfracombe group . The highest beds , containing Myalina and Natica , insensibly pass into the gritty ... Devonian fauna of Britain with that of the Rhine , Belgium , and France , by means of a series of Tables based upon the ...
... Devonian or Ilfracombe group . The highest beds , containing Myalina and Natica , insensibly pass into the gritty ... Devonian fauna of Britain with that of the Rhine , Belgium , and France , by means of a series of Tables based upon the ...
372 페이지
... Devonian Monograph . I am further indebted to Mr. Etheridge for his kindness in adding to my list the name of the author by whom each species was originally named . 2. SUBDIVISION OF THE NORTH DEVON ROCKS . The series of slates and ...
... Devonian Monograph . I am further indebted to Mr. Etheridge for his kindness in adding to my list the name of the author by whom each species was originally named . 2. SUBDIVISION OF THE NORTH DEVON ROCKS . The series of slates and ...
381 페이지
... Devonian Brachiopoda , refers it to the Carboniferous species L. squamiformis , and remarks that " it is difficult to obtain specimens preserving their natural shape , almost every example being deformed or put out of shape from the ...
... Devonian Brachiopoda , refers it to the Carboniferous species L. squamiformis , and remarks that " it is difficult to obtain specimens preserving their natural shape , almost every example being deformed or put out of shape from the ...
568 페이지
... DEVONIAN FOSSILS . By ROBERT ETHERIDGE , Esq . , F.G.S. , F.R.S.E. , Palæontologist to the Geological Survey of ... Devonian Group . 1. Porlock to Lynton . 2. Foreland , east of the River Lynn . 3. Woodabay and Heddon's Mouth . 4 ...
... DEVONIAN FOSSILS . By ROBERT ETHERIDGE , Esq . , F.G.S. , F.R.S.E. , Palæontologist to the Geological Survey of ... Devonian Group . 1. Porlock to Lynton . 2. Foreland , east of the River Lynn . 3. Woodabay and Heddon's Mouth . 4 ...
570 페이지
... Devonian series ; succeeding these are red sandstones and slates , well - defined calcareous masses , and bands of limestone , which constitute the Middle Devonian or Ilfracombe group ; these are surmounted by a thick zone of red ...
... Devonian series ; succeeding these are red sandstones and slates , well - defined calcareous masses , and bands of limestone , which constitute the Middle Devonian or Ilfracombe group ; these are surmounted by a thick zone of red ...
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Ammonites appear Avicula base beds Belemnites bones Boulder-clay Brachiopoda Brick-earths British Brocastle Bucklandi calcareous Carboniferous Limestone cavern chalk clay Clod Coal-measures conglomerate containing corals Crustacea denudation deposits Devonian Devonian rocks district Drift east Eurypterus fauna feet flint formation fossiliferous fossils fragments genera genus Geol Geological Society Glacial Goldf granite gravel grey grits Hill Hunstanton Ilfracombe inches incurva Journ Jurassic Keuper Liassic Lima lime Lower Lias Lynton marl Martin mass Middle Devonian miles mineral Moore North Devon noticed numerous occur Old Red Sandstone Oolite organic remains Ostrea Pecten Phill planorbis plate portion posterior Postglacial present Professor Pterygotus quarry quartz Rhætic river sand Schloth shale shells side siliceous Silurian slates Southerndown spec species specimens strata striæ structure surface Sutton Stone Terq Thames thickness tion Uitenhage unconformably Upper Devonian valley veins White Lias whorls zone of Ammonites
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xxxi 페이지 - On the Elevation and Denudation of the District of the Lakes of Cumberland and Westmoreland.
lxiv 페이지 - In conclusion, he showed that the various silicates already mentioned were directly deposited in •waters in the midst of which the Eozoon was still growing or had only recently perished, and that they penetrated, enclosed, and preserved the structure of the organisms precisely as carbonate of lime might have done ; and he cites these and other facts...
322 페이지 - supported wholly or in part by annual voluntary contributions, and shall not, and " by its laws may not, make any dividend, gift, division, or bonus in money unto or " between any of its members, and provided also that such society shall obtain the " certificate of the barrister-at-law or lord advocate, as hereinafter mentioned.
263 페이지 - If all specimens of Eozoon were of the acervuline character, the comparisons of the chamber-casts with concretionary granules might have some plausibility. But it is to be observed that the laminated arrangement is the typical one; and the study of the larger specimens, cut under the direction of Sir WE Logan, shows that these laminated forms must have grown on certain strata-planes before the deposition of the overlying beds, and that the beds are, in part, composed of the broken fragments of similar...
74 페이지 - Progress of the Geological Survey of Canada from its commencement to 1863. Atlas of Maps and Sections, with an introduction and appendix.
279 페이지 - Arranged to meet the requirements of the Syllabus of the Science and Art Department of the Committee of Council on Education, South Kensington.
179 페이지 - Counties, indubitable specimens of the Bos longifrons from freshwater deposits, which are rich in the remains of Elephas and Rhinoceros.
260 페이지 - I have not found in any of these fragments a canal system similar to that of Eozoon Canadense, though there are casts of large stolons, and, under a high power, the calcareous matter shows in many places the peculiar granular or cellular appearance which is one of the characters of the supplemental skeleton of that species. In a few places a tubulated cell-wall is preserved, with structure similar to that of Eozoon Canadense. " Specimens of Laurentian limestone from Wentworth, in the collection of...
370 페이지 - Ragged stone, and of the dykes at its base (xiv. xx.), the ratio of the oxygen of the silica to that of all the bases taken together is nearly as 3 : 2.
253 페이지 - Vennor's section, which is appended, has a thickness of more than 21,000 feet ; but the possible occurrence of more numerous folds than have hitherto been detected, may hereafter render necessary a considerable reduction. These measures appear to be arranged in the form of a trough, to the eastward of which, and probably beneath them, there are rocks resembling those of Grenville, from which the former differ considerably in lithological character ; it is therefore supposed that the Hastings series...