The Quarterly Journal of the Geological Society of London, Volúmenes 97-98The Society., 1942 Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
Índice
A WOOD The algal nature of the genus Koninckopora Lee | 7 |
ARKELL WILLIAM JOSCELYN The gastropods of | 79 |
HARTLEY JOHN JEROM The geology of Helvellyn | 129 |
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Términos y frases comunes
abundant albite altered granodiorite andesite appear bands basalt basic biotite borehole breccias Carboniferous cent Stock Cherty Freshwater Beds chlorite clay Cnoc nan Cuilean coarse composition Cothi crystals deposits described developed district dolerite Dorset Dunker Durlston Bay dyke east evidence fault feet felsitic felsitic material felspar fossil Fund gabbro garnet genus Geol Geological Survey grains granite granodiorite granophyre granulites gravels Helvellyn Hill Hydrobia igneous rocks intrusive Irfon junction Jurassic Koert Koninckopora lava limestone Loriol Lower Lundy magma marginal mass metamorphic metasomatism Middle Purbeck miles minerals north-west occur oligoclase outcrop palagonite Paludina paper phenocrysts Physa present probably Purbeck Beds Purbeckian pyroxene quarry quartz rhyolites rims river sands sandstone sediments shales Slates Society species specimens stage structure suggested surface Surv syenite Tertiary texture thickness Thirlmere tion Towy tuffs Upper valley Valvata variety Viviparus Wealden whorls Ynystawe zone