Geological MagazineHenry Woodward Cambridge University Press, 1912 |
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Common terms and phrases
abundant analcite anticline apical system appear augite band basal beds Boulder-clay Brachylepas British calcareous Cambrian Chalk character cherts clay Coal Coal-measures conglomerates contains Cretaceous crystals deposits described Devonian district dolerite drumlins dykes earthquakes east evidence fauna feet felspar formation fossils fragments fringe genus Geol Geological Survey geologists Glacial gneiss granite gravel Grit Hill horizon ibid igneous rocks inches intrusive Journ later laterite lavas Lias Lower margin marls miles mineral Museum Naissanti nepheline occur Old Red Sandstone olivine origin outer paper peristome pits plates portion present probably Professor quadratus Quarry quartz radial Radiolaria Radiolarian region Rhætic ridges River rows sand schists Schlüter sedimentary shales side Silurian South species specimens strata structure sulci surface tachylite Tertiary teschenite theralite thick titanaugite unconformity Upper valves volcanic Waipara Weka Pass Stone Woodward zone
Popular passages
Page 268 - Chessy deposits, that is, in a quartzose rock scattered in nuggets varying from the size of a pea to that of a walnut. All the ores carry, besides iron and silica, a small percentage of manganese and alumina, together with an amount of zinc varying from two to eight per cent.
Page 195 - On Fossil Cycadean Stems from the Secondary Rocks of Britain. Trans. Linn. Soc., vol. xxvi. pp. 675-708, pi.
Page 143 - On the Sources of the Materials composing the "White Clays of the Lower Tertiaries...
Page 116 - Sernander: Die schwedischen Torfmoore als Zeugen postglazialer Klimaschwankungen. (Die Veränderungen des Klimas seit dem Maximum der letzten Eiszeit.
Page 344 - Notes on Stone Implements from Otaru and Hakodate, with a few general remarks on the Prehistoric Remains of Japan,
Page 148 - ... of analogy with that of South Africa and India. In the present condition of our knowledge of the geology of the State, it is almost impossible to deal systematically with the various formations as a whole, for, owing to a variety of causes, geological inquiry up to the present has consisted merely of a series of unconnected observations, to the co-ordination of which we must look to the future ; nevertheless our observations have been so widely extended as to permit of certain broad generalisations.
Page 24 - A HISTORY OF THE FOSSIL INSECTS IN THE SECONDARY ROCKS OF ENGLAND. Accompanied by a Particular Account of the Strata in which they occur, and of the circumstances connected with their preservation.
Page 47 - On the Vegetation of the Carboniferous Period as compared with that of the present day," published in 1848, was an important contribution to the science.
Page 379 - On the limiting strength of rocks under conditions of stress existing in the earth's interior: Jour.
Page 281 - FRS, President, in the chair. — The President announced that the Council had awarded the second De Morgan Medal to Prof.