 | | Journal (article/letter/editorial) | | of eruptive rock occurring in the vicinity of St. Minver, near Padstow, those at Cant Hill and Carlion...view I examined the foot of the hill, passing from St. Michael along the bank of the estuary to the small...of volcanic ejecta NEIGttBOURlq[00D O~ ST. MINVER, CORNWALL. 393 consisting of identical or unmixed...felspar (labradorite- NEIGHBOURHOOD oF ST. MINVER, CORNWALL 395 in part) and its secondary products...the neighbourhood. N E I G H B O U R H O O D OF ST. MINYER, C O R N W A L L . 397 When we examine |  | | 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...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...DEVONIAN ROCKS. The Upper Devonian rocks of North Cornwall are variable in colour and texture, consisting |  | | 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 |  | | Journal (article/letter/editorial) | | hornblendic slates of the sea-border of the parish of St. Just are known to many geological tourists. They...this case almost entirely disappeared." ' Terras, St. Stephens.—This is a band of dark and fine-grained...serpentinized and otherwise much altered hornblende schist. St. Cher Downs.—On these downs there are several broad...crystals and grains of unaltered or partially altered augite, felspar, hornblende, etc. The approximation is...shadowy boundaries, which I think are highly altered augite. Using the \" power, the ground-mass is resolved |  | | Journal (article/letter/editorial) | | Kaersutite from the minverite of Cornwall THE Devonian spilitic suite in Cornwall includes sills of proterobase...proterobase of St. Minver was named minverite by Dewey (1910) and consists of purplish titan-augite, fresh dark...writer. TABLE ~[. Kaersutite from minverite, St. Minver, Cornwall. Anal. A. J. Easton SiO~ TiO2 A120a Fe~O3 |  | | 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 |  | | Journal (article/letter/editorial) | | calcite, the major contaminating phases being an augite and a titanium-rich biotite with analyses given...and fluorine contents not determined. 1. Augite. 1 a. Augite structural formula based on 6 oxygen atoms...carried out on material containing some biotite and augite contamination. Since it was not possible to determine...Kaersutite from the minverite of Cornwall THE Devonian spilitic suite in Cornwall includes sills of proterobase...proterobase of St. Minver was named minverite by Dewey (1910) and consists of purplish titan-augite, fresh dark |  | | Journal (article/letter/editorial) | | Wolfsberg, Harz, gersdorffite, 38. British Isles :ENGLAND Barwell, Leicestershire, meteorite, 101, 855. Bigrigg...Wold Newton, Yorkshire, meteorite, 101,855. Cornwall St. Minver, minverite, kaersutite, 874. The Rill, Kynance...Ease quarry; Great Zawn, Zennor; Knill's Steeple, St. Ives; Morvah ; Mouselmle ; Pedn men Du, Sennen Cove;...Trelavour clay pits and St. Roche Rock, St. A ustell ; St. Mewan Beacon; St. Michael's Mount ; Tregarden...hyalophane, 914. Wajula, Almora, Uttar Pradesh, kle. St. Gotthard, hematite, 625. mentite, 752. Bihar A u |  | | 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) | | the base of the Cambrian. At Chanter's Seat, near St. David's, he found that the Lower Cambrian grits...was probably of the age of the Granitoid rocks of St. David's. The mass of so-called granite near Newgale...bits of felsite, similar to some which occur in the St. David's district, quartzite, a quartz-schist, and...therefore evident that the Cambrian conglomerate of St. David's was formed from a very varied series of...the Northfield Quarry, which is shown to be an augite-andesite, has a large quantity of a glassy base |  | | Journal (article/letter/editorial) | | of basic composition. They have shown that the augite becomes replaced by secondary hornblende, which...structure could easily be pr oduced with anorthite and augite, and less easily with labradorite and augit e....produced, so far as I know, with oligoclase and augite. In th e granitic rocks of basic composition (i...gabbros is usually diallage j that of the dolerites, augite. Both forms disappear in the process of metamorphism...does the secondary hornblende bear to the original augite, so far as chemical composition is concerned? This |  | | Catalog/List | | of the staff detailed for this work, viz., in England Mr. T. C. Hall and Mr. John Rhodes, in Scotland...814. B 815. } B 817-23. Towan Head, Newquay, Cornwall. False-bedded blown • sand. Do. Consolidated blown...Perranzabuloe, Cornwall. Sand-dune scenery. Do. Blown sand overwhelntlng chapel (St. Piran's). St. Marys, Scilly...entering low-lying area. St. l\1artins, Scilly. Do. Sennen Cove, Whitesand Bay, Cornwall. Coast scenery, blown...blown sand. Cassock Hill, near Rock, St. Minver, Cornwall. Blown sand b urying landscape. Brownslade Burrows |  | | Journal (issue) | | INDEX UK JOURNAL OF MINES AND MINERALS ISSUES 11 - 20 (1992 - 2000) Michael Wolfe David Green, Julie...Julie Ballard and Richard Bell 2002 UK Journal of Mines and Minerals - index to issues 11 to 20 -1- CONTENTS... our second index, covers issues 11 to 20 of the UK Journal of Mines and Minerals, published between...index is freely available as an RTF download from the UK Journal of Mines and Minerals website. NOTES, issue...ISSN 0952-2409 UK Journal of Mines and Minerals - index to issues 11 to 20 -2- AUTHORS UK Journal of Mines |  | | Journal (article/letter/editorial) | | matter of considerable difficulty to distinguish augite-bearing andesites from the basalts. Although the...general matrix of the rock, or consists soielv of augite, which has been partly changed into green fibrous...are closely allied to lahradorite or andesine. Augite fills in the intervening spaces, with the formation... Judd in certain basaltic lavas of )dull*. The augite in the Chh6ngdo rock has partly chang'ed into uralitic...extended along fracture-cracks in these crystals. Augite occurs in very large and almost colourless crystals |  | | 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...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...late-Carboniferous Bodmin and Dartmoor granite plutons. In S.W. England volcanism occurred intermittently throughout D |  | | Book | | Transactions of the Royal Geological Society of Cornwall. Quarterly Journals of the Geological Society...Gadolinite. Allanite. Wollastonite. 37. Alum . 69. Augite, &c. 38. Gypsum . 70. Bronzite. 39. Websterite...ad petett inte tro con . LOCALITIES. — Evand. Cornwall ; near Tuckingmill, Cam borse, and is a gre quarry...Zircon. Olivine. Gadolinite. Allanite. Wollastonite. Augite, &c. Bronzite. Hypersthene. Diallage. Babingtonite...protect iron from oxidation. LOCALITIES. — England. Cornwall; near Tuckingmill, Cam borne, and in a granite |  | | Journal (article/letter/editorial) | | " bladed" structure of serpentine derived from augite than the " lattice "-structure peculiar to that...to be rare and have not yet certainly identified augite—while these northern greenstones are full of broken...resulted from the crushing of the rock. Much of the augite is still very fresh and clear, but it seems to...seems to have formed at places, where a fragment of augite has been drawn out in the shearing of the rock...viridite seem to be connected with remnants of augite crystals,7 and, in some cases, the viridite encloses |  | | Journal (article/letter/editorial) | | 299. AUCOTT (J. W.), see EMELEUS (C. H.), XXX. Augite, New Zealand, anal., opt., 180. Auranga-Koel Valley...decomposition, 976. Blaclcpool clay pit, St. Austell, Cornwall, tourmaline, 1078. Blithfield nmteorite...ferrian chlorospinel, 948. Castle an Dinas quarry, Cornwall, tourmaline, 1078. Catron City, New Mexico, bixbyite...Rhodesia, anal., 1052. Cripple's Ease quarry, Cornwall, tourmaline, 1078. Crccidolite, Bolivia, anal... Rhodesia and Uganda, 50. Great Zawn, Zennor, Cornwall, tourmaline, 1078. Greiner, Tyrol, dolomite, 138 |  | | Journal (article/letter/editorial) | | is abundant, interspersed with brown prismatic augite, while the magnetite is collected into crystals...given detailed evidence that the rocks of St. Minver, Cornwall, include vesicular andesite-glass in a state...this yellow alterationproduct. The interesting augite-andesites of Iceland and the Faroe Islands, with |  | | Journal (article/letter/editorial) | | Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered...Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK International Geology Review Publication details...small prisms of plagioclase, isometric grains of augite and secondary epidote, and chlorite with chalcedony...[University of Arizona] at 10:58 19 April 2015 VI = t con st - -s-, where Vi is the velocity in a cross section...COAST SECTIONS IN THE PARISH OF ST. MINVER: Trans. Roy. Geol. Soc. Cornwall, v. 12, no. 670. INTERNATIONAL |  | 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 | | SMITH L>JWARR CON'[RJillJ'l'ORS 11wose Head ctn-d St Breock Do,1.,ns area geolofsj i\JJ (�>ode R E l...Memoir for 1 :50 000 Geological Sheets 335 and 336 (England and Wales) This memoir, and the 1:50 0()0 map that...Britisli Geologi,cal Sun,ry, Sheets 335 and 336 (England and Wales) . Authors E B Selwood, BSc, PhD J M...re�on BooKS British regi,onal geology South-West England, 4th edition 1 975 Reprinted 1 985 J.Vlenwirs Tintangel...Launceston (337) 191 1 * Newquay (346) 1 906* Bodmin and St .Austell ( 34 7) 1 909* Plymouth (348) 1907* Mineral |  | | 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...Oxford University Museum of Natural History; Royal Cornwall Museum, Truro; Sedgwick Museum, University of...1\llaga::i11e, on minerals from localities in Cornwall. Devon. Cumbria and Yorkshire. He was renowned |  | | Book (edition) | | due either to chemi <..... FIG. 3. Crystal of Augite, containing a vitreous core. (After Hatch.) FIG...granulation, linear extension and paramorphic change ( augite to horn blende, etc.) . See Alteration of Rocks...vertical axis, varies from 0° to a maximum of 22° (in augite, the maximum often reaches 45°) . The double refraction...varieties are strongly pleochroic (distinction from augite). By alteration processes (weathering, metamor...fibrous green hornblendes, generally secondary after augite . Such paramorphic hornblende occurs in gabbros |  | | Journal (article/letter/editorial) | | CHAPTER XXXIV. CORNWALL, DEVON, AND WEST SOMERSET. By W. A. E. USSHER. F.G.S. INTRODUCTION. first of...the Devonian sub-divisions in South Devon and Cornwall and the true succession and structure which was...last visit at Easter, 19°7. The long excursion to Cornwall in 1887 gave the members the opportunity of inspecting...inspecting the china clay district in the St. Austell granite, the lodes of the Camborne, Carn Brea, and...Tor Serpentine, as also the Pliocene deposits of St. Erth. In this excursion the stratigraphy of the |  | | Catalog/List | | black crystal sections about 1 ins long in Felspar.(St Hilaire Quebt~ Canada) 1x2ins 60p 2x? f.1.20 3 ...sphere shaped botryoidal nodule,(Newhaven Sussex. England) 1" -10p 2"90p 3" !1.40 4" !3,30 13 ALUNITE pure...of Muscovite) red fi1icaeousscales on matrix a (St M~rcel, Val d'Aosta Italy) W 1J:1 7Cp 1x2 f 1. 30... /' pale blue-gny ~;ssi\·c. (Staffordshire England) :::-::1 !:;1 2x4 tt.20 2;-;2 60µ e2S ANTARCTICITE...Grey-white crystals with terminations.(Sheppey Kent,England) lxl cm !1.80 43 BARYTES orange brownto fawn attractively |
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