 | | Report (issue) | | mineralisation in the vicinity of Belstone Consols Mine, Okehampton, Devon K E Beer, G S Kimbell and M J Bennett ...mineralisation in the vicinity of Belstone Consols Mine, Okehampton, Devon KE Beer, BSc, FIMM G S Kimbell, BSc, and...alisation in the vicinity of Belstone Consols Mine, Okehampton, Devon. Mineral Reconnaissance Programme Report...378173 BGSKEY G Fax T 060 77-6602 Murchison House, West Mains Road, Edinburgh EH9 3LA T 031-667 1000 Telex...Manager British Geological Survey Murchison House West Mains Road Edinburgh EH9 3LA • Contents: SUMMARY |  | 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 (article/letter/editorial) | | and arsenides near the south shaft at South Terras mine, St. Stephen-in-Brannell, Cornwall. R. J. Davis...baryte, with tennantite in limestone, at Gortdrum mine, Oola, Co. Tipperary, Ireland. BM(NH) specimens...of some aspects of the geology of Cornwall and Devon' (Roy. geol. Soe. Cornwall), pp. I44-5, Anglesite...and ochreous, at West Turf Pits mine, Grassington Moor, Yorkshire. Also, at Treore mine, St. Teath, Cornwall...of some aspects of the geology of Cornwall and Devon' (Roy. geol. Soc. Cornwall), p. 249. Arthurite |  | | Journal (article/letter/editorial) | | mineralised zones on the north-western edge of Dartmoor, Devon T. J. BRZOZOWSKI BRZOZOWSKI, T. J. 1975. Very Low...mineralised zones on the north-western edge of Dartmoor, Devon. Proc. Geol. Ass .. 86 (3), 287-306. A Very Low...lithologically controlled anomalies running close to the Meldon Chert Formation of the Lower Carboniferous (Dinantian)...within the contact metamorphic aureole on the north-west edge of the Dartmoor Granite. The area is covered...farther south. The Meldon Chert Formation forms the top of the Dinantian in the Okehampton area and is a calcareous |  | | Report (issue) | | anomalies and mi nera I isation at Sou rton Tors, Okehampton, Devon REPORT No. 76/1 HMSO The Institute of...anomalies and mineralisation at Sourton Tars, Okehampton, Devon K. E. Beer and P. J. Fenning London: Her...anomalies and mineralisation at Sourton Tors, Okehampton, Devon. Rep. Inst. C;eol. Sci., No. 76/1, 38 pp....and ST-Sb Stratigraphic and Structural Details Meldon Chert Formation Crackington Formation Sedimentary...fluorescence analysis of pyrrhotite and pyrite from north-west Dartmoor • • • 111 36 Summary A spectacular |  | | Journal (article/letter/editorial) | | SKARNS FROM THE NORTH-WEST BORDER OF THE DARTMOORGRANITE,DEVONSHIRE,ENGLAND M. A. H. EL SHARKAWl...within the contact metamorphicaureole on the north-west margin of the Dartmoor granite. Tin is concentratedin...82% SnO2, centeredon the Red-a-yen Mine at Meldon near Okehampton,lies within a much wider zone of iron-metasomatism...samehorizonwas intermittentlymineralizedfrom Fanny Mine, near Bridestowe,to RamsleyMine at Sticklepathin...Geochemical prospecting(4) has shownrecentlythat at Meldon the same deposits havea lenticularshapeconfinedwithinthe |  | | Journal (article/letter/editorial) | | Upper Culm Measures THE IGNEOUS ROCKS (a) The Meldon District (b) The Petertavy District 4. THE STRUCTURE...Unit The Petertavy Unit The Lydford Unit . The Meldon Unit . Structural Interpretation (f) The Breccia-Fault...established within the country rocks bordering the north-west corner of the Dartmoor granite mass. Upper Devonian...two to three miles wide, which borders the north-west comer of the Dartmoor granite mass in Devonshire...from South Tawton on the north to Tavistock on the west of the granite (Fig. 1). Sedgwick & Murchison (1840) |  | | Catalog/List | | Greenish, sparse, acicular micros in Penberthy Croft Mine, St 1cm £4 s AGARDITE Y Ca Cu As_O_O_H_____c_a_v_iti_e'-s-'in'-'-...215 69 3 11 Rich white crusts on matrix. Rawhide Mine, Mohave ½x½£3 _P_b_S_iO_13 _ _ _ _ _ _ _ _ _ _ _...Hornblende ALLANITE Black areas in actinolite Bastnas Mine Sweden lxl £1.20 CeYFeSiO Quite attractive blue-grey...FLUORESCENT ½ x ½ ins rock Fluorescent green Al SiO Devon England Large brown well formed dodecahedral Madagascar...Grey veins in and on matrix, some with Fallowfield mine, Ix½ ALSTONITE BaCaCO/3 Alstonite micros. Hexharn |  | | 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...on minerals collected by A. de Hailer at Tynagh mine, Ireland, unpublished except in newsletters (Bulletins |  | | 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*...WHERE. Beaches Cliffs and Caves. River Beds etc. Mine Dumps Quarries St. Just - Botallack - Pendeen Camborne...Lizard .. North and Central Cornwall East Cornwall Devon 26 27 28 29 30 31 32 33 34 35 MAPS 36 39 APPENDIX |  | | Report (edition) | | British Regional Geology I * South-West England r * FOURTH EDITION e ■ - O ” ..y 1835 Geological...British Geological Survey Front cover: Bull Point, Devon (For full explanation see p. ix) NATURAL ENVIRONMENT...and Mr. G. Bisson (District Geologist, South-West England), as well as Professor W. R. Dearman and the...advances in our knowledge of the geology of south-west England. Most of the great expanse of Carboniferous...as oil companies turn their attention to the seas west of Britain, so attention is increasingly focused |  | | Catalog/List | | ARSENIOSIDERITE orange brown crusts on Hidalgoite (Gold Hill Mine Tooele County Utah USA) lxl f2.5O lx2 f5.OO 2x2...purple-brown crystalline masses (Colebrook Hill Mine,Roseberry, Tasmania) lxl fl.5O lx2 f3 2x2 f6.OO...BOKITE black to dark brown masses (Monumnt No 2 Mine Apache County 1/2 x 1/2 f3.5O lxl f5 C266 DEFERNITE...C267 BUSTAMITE excellent rich brown near Okehampton Devon) This is lxl 6Op lx2 fl.2O C268 CHALCOSTIBITE...covering location. (Ramsley Mine lxl fl.5O lx2 f3 of glassy micros Devon) 2x2 f6 C27O CHALCOPYRITE |  | | Journal (article/letter/editorial) | | stratiform massive sulphide mineralisation in south-west England A. J. Benham, F. M. McEvoy and K. E. Rollin...parts of south-west England, the Central Area between Bodmin Moor and Dartmoor, and North Devon. The Central...and lithological similarities with the Iberian Pyrite Belt (IPB) where numerous volcanogenic massive...massive sulphide (VMS) deposits occur. North Devon is considered prospective on account of its similarities...up to 10% Pb over 4·5 m was recorded. In North Devon, stratiform mineralisation has been recorded from |  | | Catalog/List | | Daniell Rd, Truro, Cornwall TRI 2 DA England Tel. 01872 223 227 (Tel. UK Time 8am -9pm) Fax. 01872 262 232...(International +44 1872 262 232) OCX)2 CALCITE.Hilton Mine,Scordale,Westmorland Terminated off while calcite...limonilic flat matrix. RF. C.£12 0Cl03 CALCITE.Hilton Mine,Scordale,Westmorland Single translucent honey coloured...xtls to 6mm forming continuous druse wi1h a little pyrite on flat greyish matrix D SPC. C £6 OC)08 CELESTITE...scalenahedra dusted '.",1lh sl1ghlly iridescent pyrite marcasine Pretty RF SPC. C £25 0019 JET,Whitby |  | | Catalog/List | | refere nce and specime n numbe r(s) 25 3 Inde x by mine ral showing spe cime n numbers 39 4 Index by...Name of the speci es. Locality. including name of mine or quarry, nearest town and county, and six figure...Waterba.nk mine Waterbank mine Hilton mine Esgair Hir mine Milltown quany Esgair Hir mine Broadlaw vein...Mllttownquany Wh.Jane Comw. HIiton mine Waterbank mine Mllltown quany Eaglebrook mine Uechwedd Helyg Wh.Gorland...Waterbank mine Waterbank mine Milltownquany Waterbank mine Wh.Fortune Lyme Regis Dry GIii mine Roughtongill |  | | Journal (article/letter/editorial) | | Indium mineralisation in SW England: Host parageneses and mineralogical relations Jens... Shail, Robin K., Indium mineralisation in SW England: Host parageneses and mineralogical relations,...Ore Geology Reviews Indium mineralisation in SW England: host parageneses AC CE P TE D and mineralogical...Cornubian batholith, SW England 1 ACCEPTED MANUSCRIPT ABSTRACT The SW England ore region contains significant...chalcocite or pyrrhotite. Scattered concentrations in pyrite relate to impurities rather than incorporation |  | | 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...Greenish , sparse, acicular micros in Penbenhy Croft Mine, St cavities in quartz_________________ Hilary Cornwall... Rich white crusts on matrix. ALAMOSITE Rawhide Mine, Mohave Ixl £9 'A x A £3 1 xA Pb SiO/3_____________...Feldspar_____________ Black areas in actinolite Basinas Mine Sweden 1x1 £1.20 ALLANITE 9 Ce Y Fe SiO__________ |  | | Journal (issue) | | analysis of small quantities of tourmaline from S.W. England ; a preliminary report.” 76. *Dr. C. S. Exley :...South Devon.” 98. *Dr. W. R. Dearman : “Bismuth and Molybdenite from Meldon Quarry, near Okehampton, Devon...geology of Devon and Cornwall”. Dr. W. R. Dearman “Map showing geological research in S.W. England - 1965”...amorphous Silicates Phosphates Iron Anhydrous Pyrite, FeS2 Manganese Anhydrous Haucerite, MnS2 Various...curves for soil clays from A- Sweden, B Scotland, C- West Africa. and the last category may indeed be conveniently | | | Report (edition) | | British Geological Survey Front cover: Bull Point, Devon (For full explanation see p. ix) •• ll On 1...Mr. G .. Bisson (District Geologist, South--West England), as well as Professor W. R. Dearman and the...advances in our knowledge of the geology of south-west England. Most of the great expanse of Carbonif�rous...as oil companies turn their attention to the seas west of Britain, so attention is increasingly focused...age-determinations of rocks of south-west . . . . . . . Facing England 1 112 List of Geological Survey |  | | Journal (article/letter/editorial) | | East Iceland: beudantite, 431 Pengenna (Trewethen) mine, St. Kew: pitchsbone, oligoclase, 587 Sellatur...WALES Adamite, hiibnerite, xliv Billingham anhydrite mine, Durham: aph~hitalite(?), arsenopyrite(?), epsomite...ilsemannite(?), lepidocrocite, molybdenite(?), pyrite, sulphur, tachhydrite(?),talc, tamarugite(?), thenardite...cornubite, 1 Treburland mine, Altarnun: genthelvite, molybdenite, 921 Treore mine, St. Teath: beudantite...jamesonite, mimetite, scorodite, stibnite, 431 Tretoil mine, Lanivet: danalite, garnet, ilvaite, 921 Wheal Betsy |  | | Report (edition) | | GEOLOGICAL SCIENCES British Regional Geology South-West England (TH [RD EDITION) By E. A. Edmonds, M.Sc. M...world war, interest in the geology of south-west England has further inten ified. Much valuable work...done, and in 1962 the newly l"ormcd outh-we t England field unit of the Geological Survey began ix-inch...Mr. G. Bisson (District Geologi t. South-We t England, editor). Private workers whose publications have...the countryside and natural history of south-west England. An EXHIBIT illustrating the geology and scenery |  | | Catalog/List | | pinkish fine grained mass in Calcite.(Dark Star Mine,Ravalli County, Montana USA) 1 x 14 £2.50 1x1 £4...guite rich black masses in matrix (Union Carbide Mine, Wilson Springs Garland County, Arkansas USA) 1x1...fairly sparse, green crusts on matrix. (San Miguel Mine Moctezuma Mexico) 1cm piece £ 5 5mm £3 WITH UNUSUAL...CO/3 0 Quite rich yellow crusts on matrix. (Outpost Mine, San Domingo Wash Maricopa County Arizona) Ixliins...MINERAL !I dark red micro's on matrix. (Getchell Mine,Humboldt Co . Nevada USA) 5mm £4 up to 1.5cm £7 |  | | Journal (article/letter/editorial) | | VOL. 46, PP. 119-126 Childrenite in South-West England R. S. W. BRAITHWAITE Chemistry Department,...Brooke (1823) on specimens from near Tavistock in Devon. Subsequently it has been recorded from a small...subsequenfly, on old mine dumps in the CallingtonGunnislake area in Cornwall, a few miles to the west of Tavistock...crystals from four scattered localities in SW England have been analysed by electron probe microanalysis...childrenite, 'apatite', and francolite occurrences in Devon and east Cornwall. C H I L D R E N I T E IN SW |  | | Journal (article/letter/editorial) | | south-west England ASPECTS OF THE LITHOGEOCHEMISTRY OF ARSENIC, ANTIMONY AND BISMUTH IN SOUTH WEST ENGLAND...antimony and bismuth in south west England. Geoscience in south-west England, 10, 352-357. As, Sb and Bi...sedimentary and intrusive igneous rocks of the south-west peninsula, with higher values for argillaceous compared...production of As, Sb and Bi from the mines of the south-west peninsula (Dines, 1956). Dines (1956) observed zonation...behaviour of Bi, with special reference to the south-west peninsula, has been described by Ball et al. (1982) |
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