 | | Journal (article/letter/editorial) | | note on the occurrence of columbite in the Meldon aplite, Devonshire. By OLEG YON K~ORRING, M.Sc. Department...South Devon in April 1951, material was collected from the Meldon aplite quarry near Okehampton, to the...the north-west of the Dartmoor granite, which on examination has proved to contain the mineral columbite...minerals have previously been recorded from the Meldon aplite quarryfl 2 They are partly found as accessory...accessory constituents in the main fine-grained aplite rock consisting of orthoclase, albite, and quartz, or |  | | Journal (article/letter/editorial) | | spodumene in the Meldon Aplite, Devon ASPECTS of the mineralogy of the Meldon aplite fiave been reported...coarser portions of the aplite and more commonly in pegmatite veins in the aplite. Similarly, Edmonds et...veins and forming disseminations in the surrounding aplite. Chaudhry and M a h m o o d (1979) noted the petalite...may have been replaced by petalite. Spodumene at Meldon receives only two notices; the description by Kingsbury...spodumene--listed by Kingsbury. Petalite and spodumene from Meldon in the A. W. G. Kingsbury Collection, British |  | | Journal (article/letter/editorial) | | AND DEVON: C.J. MOON Moon, C.J. 2018. Geochemistry of Caesium and Fluoride in Cornwall and Devon: Evidence...Evidence from TellusSW. Geoscience in South-West England, 14, 150–160. The TellusSW geochemical survey...soils and water as well as fluoride in waters. Devon and Cornwall are one of the most enriched areas...reflects Cs concentration in fine-grained granite of west Dartmoor, late stage Li-F rich granites in St Austell...mineralisation as well as forming a broad high in mid-Devon, spatially related to the occurrence of lamprophyres |  | | Journal (article/letter/editorial) | | niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire OLEG VON KNORRING AND ERIC CONDLIFFE...A number of rare-element minerals from the Meldon aplite are described, e.g. native arsenic and antimony...columbite-tantalite series. THE Meldon aplite, near Okehampton, Devon (grid ref. SX 573 927), is a highly...north-west of the main Dartmoor granite (Worth, 1920). This lithium- and fluorine-rich aplite, together...1973, 1976) have given admirable accounts of the Meldon axinite, topaz, Li-A1 micas and lithian tourmaline |  | | Journal (article/letter/editorial) | | massive from a vein in a dolerite sill at Embleton quarry, near Cockermouth, Cumberland. A. W. G. Kingsbury...of some aspects of the geology of Cornwall and Devon' (Roy. geol. Soe. Cornwall), pp. I44-5, Anglesite...Orange-brown cleavages on vein quartz, at Merehead quarry, near Shepton Mallet, Somerset. Specimen found...AgF%(SO4XOH)6 Yellow, micaceous, and ochreous, at West Turf Pits mine, Grassington Moor, Yorkshire. Also...of some aspects of the geology of Cornwall and Devon' (Roy. geol. Soc. Cornwall), p. 249. Arthurite |  | | Journal (article/letter/editorial) | | . . . . . . . . . . . . . . . . . . T h e Meldon Aplite . . . . . . . . . . . . . . . . . . . . . ....Geology of (2) (3) (4) (5) (6) (7) (8) Cornwall, Devon, & W e s t S o m e r s e t ' p. 501. 1888. S m J...1895. R. N. WO~T~, ' Notes on the Geology of Okehampton ' Trans. Devonshire Assoc. vol. xxvii, p. 306...notes comprises as much o[ the watershed of the West Okement and the Redaven as lies between the London...Railway-line on the noldh and, on the south, the 'Roof of Devon,' the Yes Tor-High Wilhays ridge; practically it |  | Edmons, E. A., Wright, J. E., Beer, K. E., Hawkes, J. R., Williams, M., Freshney, E. C., Fenning, P. J. (1968) Geology of the Country around Okehampton (Explanation of One-inch Geological Sheet 324, New Series) Memoirs of the Geological Survey. Institute of Geological Sciences | Report (issue) | | SURVEY OF GREAT BRITAIN ENGLAND AND WALES Geology of the Country around OKEHAMPTON ( Explanation of One-inch...Beche. His 'Report on the Geology of Cornwall, Devon, and West Somerset' (1839) was the first memoir of the...other early Geological Survey maps of south-west England, are undated, but it is believed that they were...(1956), 'The Metalliferous Mining Region of South-West England'. The district formed part of the area in which...geophysical methods. In 1962 the newly formed South-West England field unit, successively under Dr. F. B. A. |  | | Journal (issue) | | Some aspects of Engineering Geology in South West England Chairman's Introduction ... ... ... 356...Engineering geology in reservoir construction in South West England. By J. L. Knill. ... ... ... 359 The influence...weathering on the layout of quarries in South West England. By W. R. Dearman and P. G. Fookes. ... ...... 372 Some examples of cliff failure in S.W. England. By H. M. de Freitas. ... ... ... ... 388 Geological...problems in the china clay industry of South West England. By M. J. Ripley. ... ... 405 The geological |  | | Journal (article/letter/editorial) | | RYBACK 42 Bell Road, Sittingbourne, Kent ME10 4EB, England AND PETER C . T A N D Y Department of Mineralogy...British Museum (Natural History), London SW7 5BD, England T n E supplementary lists of British Isles minerals...recently. The classic minerals of Cornwall and Devon are splendidly described by Embrey and Symes (1987)...known from the British Isles, and 580 or so from England. Of these latter, about 116 are listed here as...gibbsite, etc. in fissure-fill in limestone, Woodleaze quarry, Tytherington, Avon (Alabaster, 1989a). Andersonite |  | | Journal (article/letter/editorial) | | GRANITES AND SOME ASSOCIATED ROCKS FROM SOUTHWEST ENGLAND I. A. MILLER AND P. A. MOHR New isotopic age determinations...determinations on all the granites of southwest England are presented and discussed in relation to the...INTRODUCTION The Hercynian granites of southwest England have in part been the subject of potassiumargon...the period of the Hercynian orogeny in southwest England in relation to other parts of Britain and Europe...concordant with the tectonic grain of southwest England, and six major domes have risen froin it to form |  | | Journal (article/letter/editorial) | | Axinites from the contact skarns of the Meldon aplite, Devonshire, England M. NAWAZ CHAUDHRY Department of Geology...Geology, University of the Panjab, Lahore, West Pakistan AND R. A. HOWIE Department of GeoIogy, King's...investigated. THE Meldon aplite, near Okehampton, Devonshire, is a sodium- and lithium-rich aplite dyke about...main Dartmoor granite (Worth, I92O). In the Meldon aplite quarries (commonly known as the granulite quarries)...northeast, and with the calcareous shales to the north-west. Samples were collected from each of the skarns |  | | Journal (article/letter/editorial) | | of zircons from the Cornubian Batholith of SW England and comparison with zircons from other European...Natural History Museum, Cromwell Road, London SW7 5BD, UK Camborne School of Mines, College of Engineering...Exeter, Penryn Campus, Penryn, Cornwall TR10 9FE, UK [Received 13 March 2015; Accepted 17 December 2015;...of the late-Variscan Cornubian Batholith in SW England was analysed for W, P, As, Nb, Ta, Si, Ti, Zr,...topaz granites from the St. Austell Pluton, Meldon Aplite and Megiliggar Rocks are slightly enriched in |  | | Journal (article/letter/editorial) | | (a) Previous Work THE Lower New Red Sandstone of Devon outcrops in a north-south band near Torquay to Exmoor...Devonian and Culm. Westwards of Tiverton and again west of Exeter the outcrop extends into the Culm synclinorium...Ussher (1906) divided the Lower New Red Sandstone of Devon into: 3. Lower Sandstones 2. Breccio-conglomerates...distinguished from the porphyritic granite of the West of England ". A granitic origin has been attributed to... The sediments were laid down in a shallow east-west basin, the later beds overlapping the earlier on |  | | Journal (article/letter/editorial) | | Easter Field Meeting in North-West Dartmoor 26-30 March 1959 Report by the Directors: W. R. DEARMAN and...north-west margin of the Dartmoor granite. The party of eighteen members assembled in Okehampton on the...Friday, 27 March Director: W. R. DEARMAN Okehampton and Meldon. The day was devoted to the examination...the neighbourhood of Okehampton and the inlier of the Lower Culm Measures at Meldon. The party drove first...first to Knowle Quarry (594962)1 where the symmetrical folds in the unaltered Upper Culm Measures were |  | | Catalog/List | | the speci es. Locality. including name of mine or quarry, nearest town and county, and six figure National...Loanhead quarry TallskerBay Whyte'a Cleuch Loanhead quarry Port Glasgow Loanheadquarry Loanhelld quarry Loanhead...Loanhead quarry Benalltmlne BMS NATIONAL REFERENCE COUECTION Ecton.Staffs. Ecton.Staffs. Scordale,Cumbria...Beach Clevedon Beach Clevedon Beach Clevedon Beach Meldon apllte q. Fallowfield mine East Gunnislake Struan...Avon Bristol.Avon Bristol.Avon Bristol.Avon Okehampton,Devon Hexham,Northumbr. Cornwall Cutting on A863 |  | | Journal (article/letter/editorial) | | 2018. Roborough Stone. Geoscience in South-West England, 14, 98–106. Vesicular quartz porphyry called...Roborough Stone is widely used in the west and south of Devon for the dressings and less commonly the...formerly won. Alvington, Churchill, Axminster, Devon EX13 7LZ (E-mail: barr.shenley@dsl.pipex.com) Keywords:...the course of a study of the building stones of Devon and nearby parts of adjacent counties (Barr, 2016)...throughout the South Hams and in western parts of Devon. Comparison with published descriptions of Devon’s |  | | Catalog/List | | FLUORESCENT ½ x ½ ins rock Fluorescent green Al SiO Devon England Large brown well formed dodecahedral Madagascar...hard white sphere shaped nodule. Newhaven Sussex, England lxlins S0p ALUMINITE Al SO/4 ALUMINOTSCHERMAKITE...- - - AMAZONITE Pure green cleavage Landsverlc quarry, Evje, Norway lxl S0p ALAMOSITE fcLp 10 g:...PbAgSbS lx2 S0p 2x2 £1 2x3 £I .SO Staffordshire England Rich white to faintly blue masses ANHYDRITE CaSO...with Chrysotile, pale grey-green County Bridge Quarry,Lizard ,Cornwall MgFeSiO massive. Minas Gerias |  | | Catalog/List | | Spinel crystals from madgascar.Mottramite from England .Cut and polished Labradorite.Tacharanite and Tobermorite...ingots on a ship wreck in 1885 St Ives. Cornwall. England Rich fine grained black crystalline mass Mount...501 A x A ins rock Fluorescent green Al SiO Devon England FLUORESCENT Large brown well formed dodecahedral..._______ Ba Ca 00/3__________ Newhaven Sussex, England lxlins50p 1x2 £1 Pure hard white sphere shaped...Arizona Pure green cleavage AMAZONITE Landsverk quarry, Evje, Norway Ixl 50p lx2£l 11 felspar group____________ |  | | Book | | ^MINERALS, ROCKS and GEMSTONES \in Cornwall and Devon |'; '’i '■-■ ,, t Cedric Rogers A Collector’s...MINERALS, ROCKS AND GEMSTONES in Cornwall and Devon Cedric Rogers i D. BRADFORD BARTON Truro LTD... MINERALISED ILPMACOMar AREAS of CORNWALL & DEVON Main. Concentrations of mints. (has Hine. fnaxt*...Lizard .. North and Central Cornwall East Cornwall Devon 26 27 28 29 30 31 32 33 34 35 MAPS 36 39 APPENDIX...experienced collector who is unfamiliar with Cornwall and Devon should find helpful. There has been no attempt to |  | | Journal (article/letter/editorial) | | Robert Bruce, a mineral dealer from Somerset, England, who was instrumental in the re-opening of the...Cumbria, England (Neall et al. 2013). 80 ROCKS & MINERALS he link between rural southwest England and a...called East Coker, in the county of Somerset, England. Bruce was born in 1969 to parents Harry and Janet...famous Meldon aplite quarry on the northern edge of Dartmoor, just south of the town of Okehampton. Bruce...the River Tamar (which marks the border between Devon and Cornwall), learning about the minerals that |  | | Journal (article/letter/editorial) | | ium mica granite (Tre gonning), leucogranite and aplite. Lithium -mica gra nite is believed to have been...roof and the evidence for several genera tions of aplite-pegmatite bodies. Department of Geology. The University...finergrained than the typical granites of south-west England, but they do not recognise the Tregonning 155.../ -, '/ / I Godolphin Hil l, ,'/ I • • '-Quarry " :' / F/ , / -, Balwest. / ::::-==-,~= , / -...Roof Complex. The contact dips 12-15° to the west-south-west. The dominant cleavage in the pelites, formerly |  | | Book | | Igneous Rocks of South-West England THE GEOLOGICAL CONSERVATION REVIEW SERIES The comparatively small...and M. C. Gyopari S. Igneous Rocks of South-West England P. A. Floyd, C. S. Exley and M. T. Styles 6...Thames D. R. Bridgland Igneous Rocks of South-West England P. A. Floyd Department of Geology, University...study, or criticism or review, as permitted under the UK Copyright Designs and Patents Act, 1988, this publication...licences issued by the Copyright Licensing Agency in the UK, or in accordance with the terms of licences issued |  | | Journal (article/letter/editorial) | | Bavenite from the Meldon aplite quarries, Okehampton, Devonshire. THE Meldon aplite quarries are situated...the Red-a-yen Brook about 289miles south-west of Okehampton on the northern border of Dartmoor. Worth...I by four counter-dipping aplite dykes. ! On the southern side of the quarry I the dip of the dykes is...the northern face is 010 approached. Here both aplite and calc I~o12o flinta are crossed by a strong...lined with thin films of axinite, but on entering aplite these spread out as reaction veins up to 2 inches |  | | Journal (article/letter/editorial) | | azurite, olivenite, 428; coronadite, 343 Embleton quarry, Cockermouth: alunite, dickite, thaumasite, zunyite...pharmacosiderite, plumbojarosite, seorodite, 430 Devon Bedford United mines, Tavistock: eornubite, 2 Ford...scheelite, 921 Meldon aplite quarry, Okehampton: bavenite, 577 Meldon limestone quarry, Okehampton: scheelite...Sticklepath, Okehampton: scheelite, lxxviii, 921 Red-a-yen Brook mine, Meldon, Okehampton: helvine, 1511ingite...nah' Achlaise, Ledmore: cromaltite, 767 Lettermore quarry, Loch Loyal: nordmarkite, 389 Loch Bad ham Ban |  | | Journal (issue) | | regional geochemical reconnaissance of South-west England. By P. L. Lowenstein and R. J. Howarth. ...... 478 Muscovite (‘Gilbertite’) from the Meldon aplite. By M. Nawaz Chaudhry and R. A. Howie. ... ....Geophysical surveys over two ore-bodies near Tavistock, Devon. By E. M. Durrance. ... ... ... 495 The sequence...... 521 Correlation of fold phases in S.W. England. By David J. Sanderson. ... ... ... ... 525 ...Pleistocene section west of Tregunna House. By B. B. Clarke. ... ... ... 551 Loess in Devon. By T. R. Harrod |
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