The Quarterly Journal of the Geological Society of London, Volumen 89The Society, 1933 Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
Índice
The PreTriassic Floor in the Birmingham Area | 65 |
Summary and Conclusions | 78 |
INTRODUCTION | 145 |
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Términos y frases comunes
acid anticline aplite appear Arenig Avonian bands Barr Beacon basalts base beds Birkhill Breadstone breccia Bunter Cader Idris Carboniferous chlorite Coal Measures coarse Collection conglomerate contains crinoidal crystals deposits described district dolomitic east eastern evidence exposed exposures Famennian fault fauna feet felspar fine-grained folding fossils fragments Frasnian Geol Geological Survey grains granite green grey Hill holotype Hopwas horizon igneous inlier intrusion Islay junction laccolith limestone lithology Llanegryn localities Lower Loxonema magma matrix Mendips mile mineral Monograptus mudstones Museum Nechells Nechells Breccia nodules north-east northern numerous occur oolitic ore-body outcrop pebbles pericline plutonic porphyritic Prof protoconch pyrite quarry quartz Quartzite rhyolite ribs ridge rocks Sandfell sandstone scheelite schist seen shales shell siderite Slates south-west species specimen spicules strata structure suture thick thin Tremadoc Upper valley veins volcanic Wales whorls yards zone Zygopleura