 | | Journal (article/letter/editorial) | | of Permian basaltic and K-rich volcanic rocks from south-west England R . S. T H O R P E , 1 M . E.... MK7 6AA, UK. 2Department of Geology, the University, Highfield, Southampton, SO5 9NH, UK ABSTRACT.Permian...Permian basic/ultrabasic lavas from southwest England may be divided into a 'basaltic' and a K-rich group...subduction of oceanic lithosphere below south-west England. The resultant magmas experiencedfractionalcrystallizationof...neodymiumisotopes, Permian lavas, south-west England. THE Peninsula of south-west England comprises deformed Palaeozoic |  | | Journal (article/letter/editorial) | | minette dykes which occur in various parts of S W England. The intrusion is t a b u l a r a n d varies in...crystallized ferriferous sanidine. The wyomingites of the Leucite Hills in Wyoming (Carmichael, 1967) are a case...contain potassium richterite, including those of the Leucite [] (Riel3eckl e)t ...<. 2 \ Na (Arfvedsonite)...in a region stretching from the south-west of England to the northwest coast of Normandy. They are most...Pendennis minette and the Permian lavas of the Exeter volcanic series, whose nearest exposures are about 100 |  | | Report (edition) | | British Geological Survey Front cover: Bull Point, Devon (For full explanation see p. ix) •• ll On 1... G .. Bisson (District Geologist, South--West England), as well as Professor W. R. Dearman and the conÂ...in our knowledge of the geology of south-west England. Most of the great expanse of Carbonifďż˝rous rocks...age-determinations of rocks of south-west . . . . . . . Facing England 1 112 List of Geological Survey Maps and Memoirs...positions prior to continental drift. South-west England is shown in . . . . . black . . . . . Generalized | | | Report (edition) | | British Regional Geology I * South-West England r * FOURTH EDITION e â– - O ” ..y 1835 Geological...British Geological Survey Front cover: Bull Point, Devon (For full explanation see p. ix) NATURAL ENVIRONMENT...Mr. G. Bisson (District Geologist, South-West England), as well as Professor W. R. Dearman and the conÂ...in our knowledge of the geology of south-west England. Most of the great expanse of Carboniferous rocks...Isotopic age-determinations of rocks of south-west England ...... Facing 112 1. . . . List of Geological |  | | Report (chapter) | | Pleistocene flows and the Recent volcanics of the Leucite Hills, Wyoming, and Gaussberg, Antarctica, respectively...pyroclastics (welded tufts, piperno, air-faU tufts, volcanic breccias etc.), cinder cones, dykes, sills and...mineralogy, mineral chemistry, geochemistry and volcanic extrusive character. Relative to kimberlites,...the general presence of phlogopite, diopside, leucite and K-richterite, occasional glass, olivine, sanidine...lamproite revolution. sitions of rocks from the Leucite Hills, W y o m i n g , and SE Spain, a n d included |  | | Journal (issue) | | into the geology and geomorphology of south-west England Volume 6 Part 3 1986 Edited by G.M Power The...into the geology and geomorphology of southwest England and the surrounding marine areas; to hold Annual...Annual Conferences at various places in South West England where those engaged in this research can meet formally...Department of Geology, University of Exeter, North Park Road, Exeter, Devon EX4 4QE Proceedings of the Ussher...The Kyrtonia Press, 115 High Street, Crediton, Devon EXl73LG Set in Baskerville and Printed by Photolithography |  | | Journal (issue) | | into the geology and geomorphology of south-west England Volume 6 Part 3 1986 Edited by G.M Power The...into the geology and geomorphology of southwest England and the surrounding marine areas; to hold Annual...Annual Conferences at various places in South West England where those engaged in this research can meet formally...Department of Geology, University of Exeter, North Park Road, Exeter, Devon EX4 4QE Proceedings of the Ussher...The Kyrtonia Press, 115 High Street, Crediton, Devon EXl73LG Set in Baskerville and Printed by Photolithography |  | | Report (volume) | | Rocks Geological Society Special Publications Series Editor K. C 0 E GEOLOGICAL SOCIETY SPECIAL...rocks I. Fitton, J.G. II. Upton, B. G. J. III. Series 552'. 1 QE462.A4 Alkaline igneous rocks. (Geological...B. G.J. III. Geological Society of London. IV. Series. QE462.A4A43 1987 552'. 1 86-26364 ISBN0-632-01616-7...kimberlite clan: relationship with olivine and leucite lamproites, and inferences for upper-mantle metasomatism...for much of our knowledge of the tectonic and volcanic evolution of the East African Rift. An obituary |  | | Report (volume) | | reconstitute them as the first two volumes in a series of Special Publications of the Geological Society...concluded that the Upper Triassic Newark Group volcanic rocks are not suitable for defining a HOLMES...is also considerable uncertainty: the following series of quotations from P T S may be allowed to speak...techniques from biotites, sanidines and many types of volcanic whole rocks are indeed the ages of formation (eruption...volume). The stratigraphical assignment of these volcanic rocks is not as precise as could be wished, appearing |
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