 | | Journal (article/letter/editorial) | | 305 The adinoles of Dinas Head, Cornwall. (With Plate XI.) By S. O. AGRELL, B.A., F.G.S. Department...305 I. INTRODUCTION. INAS Head is a small promontory adjoining Trevose Head, some five miles west of Padstow...Padstow on the north coast of Cornwall. Petrographical attention was first drawn to it by Howard Fox...thickness of adinole at Dinas Head. . , / FIG. 1. Geological sketch-map of the St. Mabyn syncline, based...GEOLO(~ICALRELATIONS. Dinas Head is situated at the seaward end of the south limb of the St. Mabyn syncline |  | | Book | | Endsleigh House 50 Daniell Road Truro, Cornwall TR1 2DA England Printed in Great Britain by Short Run...that he knew of no place on earth that surpassed Cornwall in the number and variety of its minerals. Hogg's...is subtitled 'in wich [sic] is shown how much Cornwall contributes to the illustration of the science'...later by Collins' A Handbook to the Mineralogy of Cornwall and Devon' (1871; 1892 with addenda, the latter...mention Purser's 'Minerals and locations in S.W. England' (1974). The work was never published, although |  | | Report (issue) | | 1,... � �; 'Mt """"' � IIR� -.. < I') , ENGLAND AND WALES. ,' I t 1 l J � EXPLANATION OF SHEETS...LONG AcRE, LONDON ; w. & A. K. JOHNSTON, LTD., 2, ST. JNDREW SQUARE, EDINBURGH; HODGES, FIGGIS, & Co...._--f,-9__ e and large et 21 (with � small part st Cornwall, .re, are pub- m OF • Cat. ______ ·: (54...Memoir, price 3s. (1906). Sheet 347 (BodmiI1 and St. Austell) 1909; Explanatory Memoir, price 4s.. (1909)...LONG AORE., LONDON ; W. & A. K. JOHNSTON, LTD., 2, ST. ANDREW SQUARE, EDINBlJR |  | | Journal (article/letter/editorial) | | 154 THE GEOLOGY OF NORTH CORNWALL. B y HENRY DEWEY, F .G .S. , of H.~J. Ge ological Sur vey. (Read A...XPLANATION OF THE PLATES 17 8 I.-INTRODUCTION. T H Cornwall consists for the most part of rocks of N ORUpper...superficial spreads of detritus such as the rubbly Head, and the gravels and alluvium. Area and Phys/~-a1...by Bodmin Moor, which forms the highe st land in North Cornwall. Between the Moor and the sea the surface...confined to its central part. THE GEOLOGY OF NORTH CORNWALL. ISS The 1,000 ft. plateau extends for many |  | | Journal (article/letter/editorial) | | smaller amounts of zoisite and clinozoisite, ilmenite shreds, cloudy sphene granules and crystals occur...amphibole and biotite, chlorite, shreds of altering ilmenite, a little epidote and apatite together with patches...chlorite and serpentine; leucoxene and sphene grow on ilmenite which may, from its ragged appearance, in part...are seen. In addition, granular sphene grows on ilmenite and a few groups of tiny red rutile crystals are...together with grains of magnetite and shreds of ilmenite. Occasional elongated crystals of palegreen tourmaline |  | | Book | | Igneous Rocks of South-West England THE GEOLOGICAL CONSERVATION REVIEW SERIES The comparatively small...M. C. Gyopari S. Igneous Rocks of South-West England P. A. Floyd, C. S. Exley and M. T. Styles 6. ...D. R. Bridgland Igneous Rocks of South-West England P. A. Floyd Department of Geology, University of...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) | | of S.W. England by P. A. FLOYD Department of Geology, University ofKeele, Staffordshire, England ST5 5BG...rocks of the Upper Palaeozoic greenstones of S.W. England are intrusive dolerites and extrusive basic pillow...degTees of alteration (spilitization) from a primary ilmenite-plagioclase-clinopyroxene±olivine assemblage to...chlorite versus epidote. GEOCHEMISTRY OF S.W. ENGLAND, GREENSTONES 523 DISTRIBUTION AND GEOLOGICAL...two main areas: (a) southern Cornwall, and (b) two belts in north Cornwall and Devon skirting either side |  | | Journal (issue) | | PRICE: 7/6 CONFERENCE OF THE USSHER SOCIETY HELD AT ST. AUSTELL, 1965 Hospitality was offered to the conference...quarry floors. There was a half-day excursion to the St. Austell coastal exposures led by Mr. M. C. McKeown...kaolinite formation in Gwavas quarry, Newlyn, Cornwall.” 75. *Mr. G. M. Power : “The spectrographic analysis...analysis of small quantities of tourmaline from S.W. England ; a preliminary report.” 76. *Dr. C. S. Exley :...North Cornwall.” 87. *Dr. M. J. Ripley : “Structural studies between Holywell Bay and Dinas Head, North |  | Selwood, E. B., Thomas, J. M., Williams, B. J., Clayton, R. E., Durning, B., Smith, O., Warr, L. N. (1998) Geology of the country around Trevose Head and Camelford - Memoir for 1 :50 000 Geological Sheets 335 and 336 (England and Wales) British Geological Survey. | Book | | GEOLOGICAL SURVEY Geolo of the co1111try arou11d Trevose Head a11d Ca111elford ·•-·�cc· �-«_,,-. • . . ·-.... ' • GEOLOGICAL SUCCESSION IN THE 'IREVOSE HEAD AND CAMELFORD DISTRICT Stratigraphical thickness... m SUPERFICIAL DEPOSITS (DRIFT) Quaternary Head Head, granite boulders Blown sand Peat Alluvium Marine... Geology of the country around Trevose Head and Camelford The Trevc>se Head '"1nd c -:amclford district is a11...Formatio11, anll i11trt1llecl dolerite i<)rrr1s Park Head. (GS 444) (Photogra1)l1er: AJ J c;oc>cle) BRITISH |  | | Journal (article/letter/editorial) | | samples are seen also to contain some magnetite--ilmenite and traces of pyrite. More extensive petrographic...level 550 cm below may have been enriched in Zr and St. DISCUSSION Geochemically the dolerites are of basaltic...Similar mineralogical reactions are described from Cornwall by Argetl (1939) as adinolisation. The observed...REFERENCES Argell, S.O., 1939. The adinoles of Dinas Head, Cornwall. Mineral. Mag., 25: 305--337. Burov, J.P |  | | Book | | PO Box 315. Harpenden. Hertfordshire AL5 2ZD. England Telephone: +44 (0)1582 762413 Fax: +44 (0)870 055...the production of e0pper. the mining areas of Cornwall and Devon became important producers of b th tin... I made it a stipulation that e:ich en~ in rn:, ·st ,, ,u.d be fully referenced. After eight years the...for obscure references, and for support from my head of department and secretary. In all cases, help...Oxford University Museum of Natural History; Royal Cornwall Museum, Truro; Sedgwick Museum, University of |  | | Journal (article/letter/editorial) | | i n g from Penclegyr Point on the coast inland to St. Elvis in the south, we have had, however, to confess...Newport in the east to the western side of Strumble Head in the west, and lies north of a line drawn from...from Pwll Crochan to Cilgwyn, and passing through St. Nicholas and Llanllawer. This narrow strip of country...h-westerly direction past Goodwick to a point near St. Nicholas, where it tapers out and disappears. Other...Perth Sychan, on Castle Point, on the coast towards Dinas, as far as Aber Richard ; and a band extends from |  | | Report (edition) | | AND MUSEUM BRITISH REGIONAL GEOLOGY SOUTH-WEST ENGLAND (SECOND EDITION) by HENRY DEWEY LONDON HER ...SURVEY AND REGIONAL MUSEUM GEOLOGY SOUTH-WEST ENGLAND (SECOND EDITION) by HENRY DEWEY YRIGHT RESERVED...DEVONIAN ROCKS -----(1) Lower Devonian -----(a) Cornwall and South Devon (b) North Devon ------ - 17...17 17 17 19 (2) Middle Devonian -----(a) Cornwall and South Devon _ _ _ lb) North Devon ------- - 22...22 22 22 (3) Upper Devonian -----(a) Cornwall and South Devon lb) North Devon ------(c) Pillow lavas |  | | Report (issue) | | gravity of 2. 36 0 . Although the composition mu st necess arily be tied to the mineralogy which it represent...rutile consequent upon the diminution of normative ilmenite. The in crease in magne sium result s in the...the figure for The proportion of glass to phenocry st s in the rock is about 4: 1 (determined with a Dollar...r e s und er which the norm ative rock would exi st, and hence of the depth from which the rock cam e...AGRELL, S. 0 . 1 9 3 9 . T he adinoles of Dinas Head, Cornwall. Mineralog. Mag. , V ol . 2 5 , pp . 30 |  | | Book | | GEOLOGY OF ,,, ,,. F .. THE GEOLOGY OF CORNWALL Cornwall is renowned for its spectacular rocky coastline...seventeenth century. This book reviews the importance of Cornwall in the development of geological thought in Britain...of notable scientific interest. The Geology of· Cornwall is a companion volume to The Geology of Devon...org/details/geologyofcornwal0000unse THE GEOLOGY OF CORNWALL AND THE ISLES OF SCILLY Edited by E.B. Selwood...Liskeard High: E.B. Se/wood The Structure of East Cornwall: K. P Isaac Culn1 Basin: JR. Andrews The Boscastle-Tintagel- |  | | Journal (issue) | | 219 SYMPOSIUM. The structure of South West England A general view of the structure of Cornubia. By.... 237 The Structures of Mid-Devon and North Cornwall. By E. C. Freshney and R. T. Taylor. ... ... ...Form and structure of the granites of South West England. By M. Stone. ... ... ... 253 ... ... En-echelon...formed structures between Port Isaac and Tintagel, Cornwall (Abstract). By D. M. Hobson. ... 264 Deformation...of the Gramscatho and Mylor Beds, Perranporth, Cornwall. By D. J. Sanderson. ... ... ... ... 266 Evidence |  | | Journal (issue) | | Transgression of the Cretaceous sea in South-West England. By J. M. Hancock. … 61 The Cretaceous structure...Preliminary report on the Wilsey Down Borehole, North Cornwall (Abstract). By E. C. Freshney. … 107 The geology...Dartmouth and Meadfoot Beds near Fowey, South Cornwall (Abstract). By P. H. Bridges. … … … … 109 Observations...sedimentological history of the Padstow area, North Cornwall (Abstract). By M. Tucker. … … 111 Facies interpretations...W. England (Abstract). By D. J. C. Laming. … … 111 Tergiversate folds from South-West England. By |  | | Report (chapter) | | from http://sp.lyellcollection.org/ at University of St Andrews on March 26, 2015 Biogeochemical factors...5 1Steffen, Robertson and Kirsten (UK) Ltd, Cardiff CF1 3BX, UK 2 School of Biological and Health Sciences...University of Westminster, 115 New Cavendish St., London W I M 8JS, UK 3 Department of Zoology, The Natural History...History Museum, Cromwell Road, London SW7 5BD, UK 4 FA CO, c/o BHC Harare, Zimbabwe 5 Marl, Dodoma PO...from http://sp.lyellcollection.org/ at University of St Andrews on March 26, 2015 108 R.J. BOWELL E T AL |  | | Report (issue) | | parts of south Devon and Cornwall 45 Mineral investigations near Bodmin, Cornwall. Part 2-New uranium, tin...tin and copper occurrence in the Tremayne area of St Columb Major 46 Gold mineralisation at the souther...over the concealed granite ridge at Bosworgy, Cornwall 75 Geophysical surveys in part of the Halkyn-Minera...Bodmin, Cornwall. Par t 4-Drilling at Royalton Farm 83 Mineral Investigations near Bodmin, Cornwall. Part...Part 5 -The Castle-an-Dinas wolfram lode 84 An airborne geophysical survey of part of west Dyfed, South | | | Book | | OF CORNWALL Edited by E.B. SELWOOD, E.M. DURRANCE and C.M. BRISTOW THE GEOLOGY OF CORNWALL Cornwall...seventeenth century. This book reviews the importance of Cornwall in the development of geological thought in Britain...rock and mineral exploitation. The Geology of Cornwall will be of interest to all those, whether amateur...of notable scientific interest. The Geology of Cornwall is a companion volume to The Geology of Devon...Press Reed Hall. Streatham Drive Exe1er. EX4 4QR UK Ii:) I998 University of Exeter Hardback ISBN O 85989 |  | | Book | | Mg2Si04, Fe2Si04), acmite (,ac), magnetite (mt), ilmenite (il), apatite (ap), etc. The mineral composition...main ore is magnetite but ilmenite is present in some rocks, and ilmenite-haematite exsolution intergrowths...muscovite-biotite alkali granites among the granites of New England, associated with biotite granites and muscovite...provided by the Armorican intrusions of Devon and Cornwall (15). All are composite, with two or more important...biotite granites, and the granites of Devon and Cornwall may be considered in this connection. With boron |  | | Report (edition) | | Cambrian rocks ..... Geological sketch map of the St. David’s district Comparative columns showing the... (A. 10779) Frontispiece I Facing page II A. St. David’s peninsula and Ramsey Island. The terrain...occurring at the mouth of the inlet, left centre. Dinas Fach, the headland in the middle distance, is of...Preseli (sky line). (A.6140) B. Pliocene platform, St. David’s peninsula. The up lifted marine platform...Glacial spillway at Dinas Head, near Fishguard. The headland to the north (left), Dinas ‘Island’, of Ordo |  | | Book (edition) | | Kirby, Wirral, UK Printed by Berforts Information Press, Stevenage, Hertfordshire, UK Downloaded from...Oxides Periclase, Cassiterite, Corundum, Hematite, Ilmenite, Rutile, Anatase, Brookite, Perovskite Spinel...tabulated data and optical orientation sketches at the head of each mineral section are now accompanied by a...tabulated data and optic orientation sketches at the head of each mineral section, and by including the paragraphs...Tephroite, Benallt Mine, Caernarvonshire, Wales, UK (Smith, W.C. et al., 1944, Mineral. Mag., 27, 3346) |  | | Book (volume) | | Corundum . . . . . . • • .11 Haematite ......... 21 Ilmenite ......... 28 Rutile ......... 34 Anatase .......varlamoffite (partially hydrated stannic oxide) in Cornwall. Min. Mag., vol. 29, p. 817. Scrivenor, J. B....52. Meixner, H., 1942. Eine Korundlagerstatte bei St. Jakob (Oststeirmark). Zentral- blatt Min., Abt...large amount may be due to the intergrowth of ilmenite: Edwards (1938) has reported titanhaematite from...Western Australia and considers that lamellae of ilmenite separate out from solid solution when more than |  | | Report (volume) | | Survey Nottingham, UK R. FUGE Institute of Earth Studies University of Wales Aberystwyth, UK and G. J. H...Department of Earth Studies Liverpool University, UK 1996 Published by The Geological Society London...Society, Burlington House, Piccadilly, London W1V OJU, UK. The Society is a Registered Charity, No. 210161...Brassmill Enterprise Centre Brassmill Lane Bath BAI 3JN UK (Orders: Tel. 01225 445046 AAPG Bookstore PO Box...Bath Typesetting, Bath, UK Printed by The Alden Press, Osney Mead, Oxford, UK Tel. (918) 584-2555 Fax |
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