 | | Journal (article/letter/editorial) | | Brittany are unknown, except as detrital species , in Devon and Cornwall; others (e.g.• zircon, monazite, and...tourmaline) are native to both Brittany and the West of England, and for some of these (e.g., monazite. and...though the same species occur also in other West of England granites. As a clue to provenance the varietal...outcome of work nowin progress on the various West of England granites. A. BRAMMALL, Meanwhile the present...post-Carboniferous sediments in the south and south-west of England. The data presented must not be regarded as |  | | Journal (article/letter/editorial) | | Rockland All Saints in Norfolk, and Peter Tavy in Devon. A quantitative survey reveals that over time there...of Tavistock, on the western edge of Dartmoor in Devon (SX 513779). The sites were deliberately chosen...total. Th e earliest stones are to be found to the west of the south porch. The absence of gravestones from...recognized by the flesh-coloured tone of the orthoclase feldspars . 'Balrnora l Red ', a granite imported...stand s 280 m above sea-level and is located on a west-facing slope overlooking the River Tavy. To the |  | | Catalog/List | | without matrix. 170x90x30mm. £15. 7) CALCITE. Croft Quarry, Enderby, Leicestershire. (a) A n off white modified...collection. 1977. 40x35x80mm. £45. 8) CALCITE. Dean Quarry, St Kevearne, Cornwall. Three colourless, mostly... 9) CALCITE on DOLOMITE. Black Rock Quarry, Buckfastleigh, Devon. Four lenticular blocky offwhite xls...£28. 12) CASSITERITE. Hemerdon Ball, Plympton, Devon. Black cassiterite xls and sections imbedded in...100x70x30mm. £30. 16) CHALCEDONY after CALCITE. Penlee Quarry, Newlyn, Cornwall. Matrix with grey/white crusts |  | | 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) | | Literature relating to the geology of the West of England and to that of Dartmoor in particular is extensive...Dart and the West Dart), and at Lizwell Meet (the confluence of the East Webburn and the West Webburn)....granite at Standon Hill and Sharp Tor in the north-west part of the moor, an d rooffragments occasionally...qu arried about 320 yards south of Vixe n T or (West Dartmoor), and a t a few other local iti es. Assays...Assays of apparently barren sa m ples of these quarry-gran ites show up t o 6 gra ins of gold an d 38 grains |  | | Journal (article/letter/editorial) | | Wolfsberg, Harz, gersdorffite, 38. British Isles :ENGLAND Barwell, Leicestershire, meteorite, 101, 855. Bigrigg...INDEX Ecton, Staffordshire, serpierite, 882. Mells quarry, Frome, Somerset, calcite, 70. Roughten Gill, Cumberland...localities, p. 1078: Castle an Dinas quarry; Cripple's Ease quarry; Great Zawn, Zennor; Knill's Steeple...Mount ; Tregarden quarry, Luxulyan ; Tremearne ; and Tresayes. Devon Meldon railway quarry, metamorphosed...clay pit; Locks Cross, Sherberton Common ; Merrivale quarry; Sheltor ; and Staple Vor. WALES Benallt mine |  | | Journal (issue) | | Science, Plymouth Polytechnic, Plymouth, PL4 8AA, Devon. PROCEEDINGS OF THE USSHER SOCIETY VOLUME FOUR...Co., Kyrtonia Press, 115 High Street, Crediton, Devon CONTENTS CHAIRMAN'S REPORT......................formation of small-scale tectonic structures in south Devon (Abstract). By D.M. Hobson........................of the late Triassic - early Jurassic sequence in west Somerset. By G. Warrington.......................... 157 The Variscan granites of south-west England: a progress report. By J. R. Hawkes and J. Dangerfield |  | | 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...Bristol.Avon Bristol.Avon Bristol.Avon Okehampton,Devon Hexham,Northumbr. Cornwall Cutting on A863 St.Day...Trinafour.ScoU. Lochan-na-Lalrigh Loanhead quarry Loanhead quarry Hopeful vein Hopeful vein Ralk's vein Fethaland |  | | Journal (article/letter/editorial) | | Evolution and Alteration of the Dartmoor Granite, SW England by C. D. W A R D 1 2 * , J. M. M c A R T H U R...New College, Egham Hill, Egham, Surrey TW20 OEX, UK 2 Department of Geological Sciences, University College...College London, Gower Street, London WCIE 6BT, UK 786 C. D. WARD ET AL. Granites, including the Dartmoor...exposed pluton of the Coraubian batholith of SW England (Fig. 1) and invaded Devonian and Carboniferous...location, are: BK, Blackingstone Quarry, Doccombe; EW, East Wray Cleave Quarry, Lustleigh; AF, Whitstone Tor |  | | Journal (article/letter/editorial) | | normal grey blotite-grani~e of numerous tor- and quarry-lo'ealities; several hand-specimens of granite...in east and west Dartmoor respectively, are here,des6ribed. 9 .J Welstor Cross quarry, near Buckland...--This quarry is traversed by several veins of cmnpact granular quartz striking nearly east-west and dipping...dusters occur about the margins of, and also on, orthoclase phenocrysts which are only feebly diseoloured...fracture-surface of a granitr specimen from Welstor Cross quarry. The largest flake is about 1.2 millimetres long |  | | Catalog/List | | Daniell Rd, Truro, Cornwall TRI 2 DA England Tel. 01872 223 227 (Tel. UK Time 8am -9pm) Fax. 01872 262 232...greyish green matrix.RF SPC. C.£15 0014 XONOTLITE.Bin Quarry,Hunlley,Aberdeen,Scolland Radiating off while lo...1ourmaline.R1ch RF SPC. C.£8 0027 CHALCEDONY.Pentee Quarry,Newlyn,Cornwall.Pretty botryoidal encrustations...D SPC. C.£8 0028 CHLORITE after AXINITE,Aplile Quarry,Meldon,Devon.Unusual pseudomorphs of earthy brown...x1Is.Unusual RF SPC. C £10 0029 WAVELLITE,Highdown Quarry,Filleigh.Devon.Classic wavellite with radiating |  | | Catalog/List | | mineralogy, particularly in relation to northern England, the field in which Trevor carved a niche for himself...Southwest England 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 SS.A1 Wavellite - High Down Quarry, Haddon...1980. Ex R.Barstow. SW.B1 Apatite on orthoclase - Colcerrow Quarry, Cornwall. Barstow green stock label...Bridge Quarry, Lizard, Cornwall. V.Holyer 1976. [SW 722 220]. SW.Q4 Serpentine - County Bridge Quarry, Lizard...Holyer 197-. [SW 722 22]. SW.R8 Stilbite - Dean Quarry, Lizard, Cornwall. E.Retallack 1975. [SW 804 203] |  | | Journal (article/letter/editorial) | | that quarried at ~errivale. The structure of the Merrivale geodes comprises something more than the mere...infilliug the cavity comprise : (a) Euhedrons of orthoclase, the faces of which are often encrusted with...obvious reaction relation ~ to the perthitic orthoclase. (d) Deep purple fluorite, as irregular masses...6 575 ~ as a mean. Tourmaline occurs in tile Merrivale granite itself, in the closely allied Foggintor...tourmaline in a granite composed of albite, perthitic orthoclase, perthitic microcline, pinitized cordierite, |  | | Journal (article/letter/editorial) | | actinolite, anthophyllite, hornblende, 403. Barium-orthoclase, Japan, cell dimensions, 914. Barium-potassium...Antrim, ferrian chlorospinel, 948. Castle an Dinas quarry, Cornwall, tourmaline, 1078. Catron City, New Mexico...Cordierite, Rhodesia, anal., 1052. Cripple's Ease quarry, Cornwall, tourmaline, 1078. Crccidolite, Bolivia...copper belt, Rajas. than, India, 22. Datolite, Devon, in metamorphosed chert, 260. DAVlDSON (C. F.),...DEARMAN (W. R.), Metasomatism of cherts on the north-west margin of Dartmoor, Devonshire, 260. EMELEUS (C |  | | Journal (article/letter/editorial) | | HYROTHERMAL ACTIVITY IN THE GRANITES OF SOUTH-WEST ENGLAND A. HALL AND D.H.M. ALDERTON Hall, A. and Alderton...hydrothermal activity in the granites of south-west England. Proceedings of the Ussher Society, 8, 242-247...Hydrothermal alteration in the granites of south-west England has resulted in substantial enrichment in ammonium...small amount of data so far available for south-west England shows that some ammonium enrichment is present...activity is widespread in the granites of southwest England, and it is associated with the extensive mineralization |  | | Journal (article/letter/editorial) | | minerals, 357; Li-micas, compositional relations, England and France, 427, vaughnite, new mineral, Hemlo...analysis, trace elements, geological applications, 3 ENGLAND CORNWALL, Botallack, Whealcock Zawn, wickmanite...Higher Roughton Gill, scotlandite, 653; DEVON, Merrivale Quarry, phurcalite, 583; NORTHPENNINES,cinnabar...MASSIFCENTRAL,Li-micas, compositional relations with SW England, 427; Cantal, magma mixing in alkaline volcanics...microprobe analysis, Li-micas, compositional relations, England and France, 427; review of geological applications |  | | Catalog/List | | Tregeseal, St. Just, Near Penzance, Cornwall, England. TEL.NO.: St. Just 880 (STD a73 677) ORDERING ...matrix. ltxlxt". £8.00. APATITE. Aplite Quarry, Meldon, Devon. Specimen A - Small, sharp, transparent... 15. 16. 17. lB. -2AUTUNITE. Merrivale Qry., Dartmoor, Devon. Rich crust of small sparkling lime...Ouartz veinstuff attached. 2txlf.xl~". £8.00. ORTHOCLASE. Littlejohn Claywork, HensbarrDw MDDr, CDrnwall |  | | Catalog/List | | ';:'reg8seal, St. Just, '~ear Penzance, Cornwall, England. St. Just 880 (STD 073 677) V.a.T. No.132-7852-67...sea-green, sharp hexagonal crystal implanted on Orthoclase rich Pegnatite with ode smaller Apatite crystals...fluorescent display. 2x2". £7.75. AUTUNITE. Merrivale Quarry, Dartmoor, Devon. Bright, lime yellow, micro crystals...SIDThITE. George & Ch·ulotte iEne, :Jr. T:.>vist;ock, Devon. Light brown, lenticular, botryoidal masses to 1 |  | | Journal (article/letter/editorial) | | alternative stones from other parts of the World. 1. WEST FRONT OF ST. PAUL'S There are few better starting...London than at the top of the steps outside the Great West Door of St. Paul's Cathedral. The cathedral itself...City. Begin by standing within the portico of the west front, behind the massive fluted columns; the paving...from quarries near Tournai in Belgium or from the west coast of Ireland. Being dense and compact, the dark...absent from the latt er. At the focal point of the West face frontage of the cathedral stands the statue |  | | Catalog/List | | hrdownie Quarry specimens. Also "Potato Stones" from the Hendips. 4. ANALCIME.Magheramorne Quarry,Larne...trapezohedral xtls to 3mm. t5 each. 5. ANALCIME.Croft Quarry,Croft,Leicestershire.7 specimens.Specimen A-white...scattering of 0.5-lmm pale blue xtls TN,.t6. Pink Orthoclase over the surface. 14. APATITE VAR FRANCOLITE....tlO. 16. ARAGONITE/ROCK CRYSTAL. Greystones Quarry,Launceston,Cornwall. Large milky Quartz breccia...tl2. Attractive. 18. ARSENOPYRITE.Hingsten Down Quarry,Calstock,Cornwall. 2 specimens. Specimen A-matrix |  | | Book | | of Collecting Minerals Gold from Hope's Nose, Devon. 23 x 15 mm. Image© Jeff Scovil. David Lloyd First...permission of the author. Printed and bound in the UK by: BookPrintingUK Remus House, Coltsfoot Drive,...laddering down a shaft at Bedford United Mine, Devon. Introduction I was born in Bristol on the 24...Construction Ltd in Paignton, Devon, had a heart attack. I was asked to go to Devon and help run the small works...uncle was one of the main building contractors in Devon for S. N. W. Homes, a division of the English China |  | | Journal (article/letter/editorial) | | Murchison initiated the structural study of the West of :England nearly a century ago a large amount of data...interpretation of the granites of Cornwall and Devon--their age and origin, their spaceform and attitude...Osman (1928). Mr. R. H. Worth considers the West of England granites to be protrusions from a granite wedge...probable that the Armorican magmas, from the West of England to Spain, originated in the deep-sunk roots...entertained a palingenetic origin for the West of England granites, which (he states) ' seem to have |  | 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) | | MEMOIRS OF THE GEOLOGICAL SURVEY OF GREAT BRITAIN ENGLAND AND WALES Geology of the Country around OKEHAMPTON...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. |  | | Catalog/List | | Giller) 2 6 Nursery Road, Bewdley, Worcs. DY12 tAL, UK. Tele/Fax: +44 (0) 1299 403916 E-Mail: saragiller@crystalvine...xtl with an undamaged tip. £3. 5. ANALCIME, Croft Quarry, Leicstershire. 3.5xl.8xl.3cm. A greeny/white matrix...fine example. £6. 7. ANATASE, Virtuos Lady mine, Devon. l.4xl.5xlcm. A MM with a micro xtl of sparkly anatase...under magnification. £6. 9. ANGLESITE, Coldstones Quarry, Pateley Bridge, Yorkshire. 3x l.9x2cm. A bright...Mourne Mts. Eire. 6x5x5cm. A pegmatite matrix with orthoclase, mica and terminated smoky quartz xtls in vugs |  | | Journal (issue) | | UK j I o mi minerals TS C nlm~ 2 EDITORIAL COVER: Vanadinite from the LeadhillsWanlockheadminingdistrict...specimen. 5 PEGMATITE MINERALS FROM CI-IYWOON QUARRY The UK Joumal efMines a11dMinerals publishes articles...Stephen Burchmore • David Green NEW CLIFFE HILL QUARRY 43 The views and opinions expressed in this Journal...ALGODONITE AND DOMEYKITE FROM NEW CLIFFE HILL QUARRY Publication of information on a collecting site...Worbop, Nott~. S80 2EE CLASSIFIED ADVERTISMENTS UK Journal of Mines & Minerals No. 26 -1- EDITORIAL |
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