Abstracts of the Proceedings of the Geological Society of London, Выпуск 3911881 |
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Anglesey Archæan author described award balloted beds Boulder-clay boulders Brockenhurst Bryozoa Cambrian Carboniferous characters clay coal Colwell Bay communications were read conglomerate corals Council crystalline David's deposits Dimetian DISCUSSION district elected Fellows Eocene Etheridge evidence F.G.S. The author fauna feet felsites following communications Foraminifera formation forms fossils fragments genera genus GEOLOGICAL SOCIETY Geological Survey glacial glacier gneiss granite granitoid gravel grits Headon held on Wednesday Hicks hornblende Hughes Hulke Iguanodon Judd Library was read limestone List of Donations Lower marine mass Medal metamorphic microscopic Museum North Wales occur Oolite Ornithopsis Paleozoic paper pebbles Pebidian Permian Pliocene pointed Pre-Cambrian present PRESIDENT Prestwich proposed as Fellows quartzite referred regarded remarked rocks sand Sandstone schists sections SEELEY shales shells showed Silurian SOCIETY OF LONDON South species specimens were exhibited strata structure T. G. Bonney thought unconformity Upper valley vertebræ volcanic W. T. Blanford
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Стр. 8 - ... to cause the newer and more yielding strata to dip towards and even beneath the edges of the older rock, a result due to folds, often with inversion, sometimes passing into faults.
Стр. 67 - On the Structure and Affinities of the Genus Monticulipora and its Sub-Genera, with Critical Descriptions of Illustrative Species. Illustrated with numerous Engravings on wood and lithographed Plates. Super-royal 8vo, 18s.
Стр. 65 - A/e1tsticosaurus pusillus, an Amphibious Reptile having Affinities with the Terrestrial Nothosauria and with the Marine Plesiosauria,
Стр. 94 - By Charles Lapworth, Esq., FGS, Professor of Geology in the Mason Science College, Birmingham. The Lower Palaeozoic rocks of the neighbourhood of Girvan, in the south of Ayrshire, have long been famous for the remarkable variety of their petrological features, and for the abundance and beauty of their organic remains; but the strata are so intermingled and confused by faults, folds, and- inversions, that it has hitherto been found impossible to give a satisfactory account of the geological structure...
Стр. 75 - The object of the author was to prove that the eastern Gneiss of the Northern Highlands, usually regarded as of " Lower Silurian " age, was to be placed in the Archaean. While admitting that this gneiss frequently overlies the quartzo-dolomitic group of...
Стр. 80 - On the Madreporaria of the inferior oolite of the neighbourhood of Cheltenham and Gloucester, by RF Tomes, FGS — On the exploration of two caves in the neighbourhood of Tenby, by Ernest L.
Стр. 102 - Sand, indicated by the sacrum and the neural canal of the sacral region, by Prof. HG Seeley, FRS, FGS— On the dorsal region of the vertebral column of a new Dinosaur, indicating a new genus, Sfhenosfondylus, from the Wealden of Brook, in the Isle of Wight, preserved in the Woodwardian Museum of the University of Cambridge, by Prof.
Стр. 117 - ... cones, the highest, Ankaratra, being 8950 feet above the sea. With the exception of certain legends, there is no record of a period when the volcanoes were active : two such legends were given. The known volcanic cones were enumerated. They extend from the northern extremity of the island to the 20th parallel of south latitude. Beyond this granite and other primitive rocks occur as far as lat. 22°, south of which the central parts of Madagascar are practically unknown to Europeans. Some crater-lakes...
Стр. 108 - He then proceeded to consider what was the weight of ice that probably 109 existed, and referred to the elastic and flexible nature of the earth's crust, as evinced by earthquakes &c. He further considered the relation of time to pressure, and touched upon the probable rate of subsidence, which he supposes to have been very slow and gradual. The recovery of level, he thinks, would also be very gradual, and probably, in most cases, not complete. He next proceeded to show how his hypothesis is borne...
Стр. 34 - MP, the remaining portion of which is in the Geological Museum of Cambridge. Several genera and species were described by Prof. Agassiz in his ' Recherches sur les Poissons Fossiles ' (1833-43), and again referred to by JE Portlock, FRS, in his ' Report of the Geology of Londonderry and parts of Tyrone and Fermanagh '(1843).