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| Deegan 65-76 55 °N/6"W. 7 Geophysical studies south and west of Kintyre. By A. Dobinson 77-91 8 A...distinguished by the physiography of the sea floor. To the south, between tl1e North Channel and a line from Turnberry...striking local feature is a broad ridge trending south-south-east fro1n the southern end of Arran from which...80 m under the Sound of Bute. This basin trends south-east from southern Loch Fyne to near Clauchlands...a narrower strip of deep water continues to the south, parallel to the coast of Arran. To the east of |
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| Britain, of which that of Ailsa Craig is the best known. The occurrences of Ailsa Craig1 and Mynydd Mawr...microphenocrysts of quartz and alkalifelspar, in a microcrystalline groundmass of quartz and felspar. Riebeckite... near Lamlash, Arran. It is noteworthy that Ailsa Craig is only 18 miles from this locality. The Holy...in the Firth of Clyde, as prominent almost as Ailsa Craig itself, and moreover of much the same shape....group of felsite sills, which seldom show free quartz and are usually non-porphyritic. These are believed |
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| OF KINTYRE DYKES TO THE DYKE-SWARMS OF WESTERN SCOTLAND. PETROGRAPHY OF KINTYRE DYKES. (a) (/;) (c) (d)...of the 1 in. maps of the Geological Survey of Scotland. The present work deals chiefly with the minor...and 29.2 By analogy with other parts of Western Scotland and from local evidence the following age-classification...Survey of Scotland, The Geology of North Arran, South Bute, and the Cumbraes, with farts of Ayrshire and Kintyre...Dyke-Swarms of South-Western Scotland. The 1 inch maps of the Geological Survey of Scotland which include |
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| the southern sector of the province (N Arran, Ailsa Craig, Mourne Mountains, Slieve Gullion, etc) reveal...lithosphere. KEY WORDS: Arran, Mourne Mountains, Ailsa Craig plutons, A-types; basaltic differentiation; crustal...texture (grain size) within this pluton (G. Y. Craig, pers. comm. 1991). The province has become renowned...Carlingford Sr Initial "'Sr/^Sr: 0-7028 ± 9 (Ailsa Craig), 0-70379 ± 5 (St Kilda)— c. 0-732 (Coire Uaigneich...with Ailsa Craig and Tardree, Co. Antrim. Data sources: Harrison et al. (1987) for Ailsa Craig, Harding |
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| petrographer in Scotland, sent me sections of the red and grey varieties of the microgranite of Ailsa Craig, then...under the microscope in any respect as did the Ailsa mineral, I had to report that I could not range...occur very abundantly in the interesting rock of Ailsa Craig, for opportunities of .studying which I am indebted...satisfactory optical grounds that the mineral of Ailsa Craig was Biebeckite, and its identity with Sauer's...the rock. Since Mr TealTs identification of the Ailsa mineral, Biebeckite has been reported from two other |
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| Pearl Company used to submit some huge natural South Sea pearls. A cursory glance through the records...baroque natural pearl weighing 119.35 ct. The largest South Sea natural pearl that Mr Norman remembers dealing...wedgeshaped twinning (Figure 20) seen in synthetic quartz (Koivula and Fritsch, 1989). Synthetic spinel It...year a trading standards officer from one of the UK city councils attended one of our one day courses..., 1989. The growth of Brazil-twinned synthetic quartz. Gems & Gemology, 25(3), 159-164 Koivula, J.I. |
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| online April 2013 Apatite-supergroup minerals in UK Palaeogene granites: composition and relationship...Centre, Lancaster University, Lancaster LA1 4YQ, UK *Corresponding author, e-mail: r.macdonald@lancaster...macdonald@lancaster.ac.uk Abstract: The Palaeogene granites of Scotland and Northern Ireland range mineralogically from...As part of an ongoing study of accessory phases in UK Palaeogene granites (Macdonald et al., 2013), we...nepheline syenites of the Ilı́maussaq intrusion, South Greenland. There are significant variations in major |
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| Micro-granite containing Riebeekite f r o m Ailsa Craig. By J. J. H. TSALL, M.A., F.R.S., F.G.S. (By...identified the peculiar blue hornblende occurring in the quartz-porphyry of ]~ynydd Mawr with the mineral described...occurrence of riebeckite in the so-called syenite of Ailsa Craig, the small island which stands at the entrance...Geological Survey (Explanation of Sheet 7, page 12):-"Ailsa Craig is an oval-shaped island, lying ten miles west...eastern declivity of the island and the waves. The Craig consists of a gray fine-grained syenite, which, |
 | Tyrrell, G.W., Begg, J.L., Pringle, J., Weir, J., Henderson, S.M.K., Lamont, A. (1933) Summer Field Meeting, 1932; Girvan-Ballantrae. Proceedings of the Geologists' Association, 44 (1) 57 doi:10.1016/s0016-7878(33)80025-3 | Journal (article/letter/editorial) |
| recognised the close affinities which exist between the Ayrshire rocks and the serpentine, gabbro, and other basic...Silurian conglomerates of Corsewall P oint and Craig Skelly, and in the great Benan Conglomerate of t...exist ence of a land ridge across the sout h of Scotland during Ordovician tim es was of importance t o...took place. This sudden inrush of species from the south undoubtedly indicates the removal of a barrier;... with the spilites and albite-dolerites of South Ayrshire, belonged to the same general period of igneous |
 | Macdonald, R., Baginski, B., Dzierzanowski, P., Fettes, D. J., Upton, B. G. J. (2013) CHEVKINITE-GROUP MINERALS IN UK PALAEOGENE GRANITES: UNDERESTIMATED REE-BEARING ACCESSORY PHASES. The Canadian Mineralogist, 51 (2) 333-347 doi:10.3749/canmin.51.2.333 | Journal (article/letter/editorial) |
| 3749/canmin.51.2.333 CHEVKINITE-GROUP MINERALS IN UK PALAEOGENE GRANITES: UNDERESTIMATED REE-BEARING ACCESSORY...Murchison House, West Mains Road, Edinburgh EH9 3LA, UK Brian G.J. UPTON School of Geosciences, Grant Institute...Institute, University of Edinburgh, Edinburgh EH9 3JW, UK Abstract Chevkinite-group minerals were sought in...granitic bodies from the Palaeogene sequences of Scotland and Northern Ireland, ranging from biotite ± amphibole...compositions. Keywords: chevkinite-group minerals, UK Palaeogene granites, zoning patterns, textural analysis |
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| Institute of Geological Sciences Exhibition Road South Kensington London SW7 2DE ••• 111 • CONTENTS...GRAVEL DEPOSITS AND THEIR ASSOCIATED SANDS 21 South Coast of Arran 21 Mull of Kintyre 21 Kilbrannan...23 Bute and the Cumbraes 23 Inner Clyde 23 Ayrshire Coast 25 Grain Size and Provenance of the Gravels...Section proved in boreholes by m. v. Whitethorn south-west of Arran 31 Fig. 12. Section proved in boreholes...extending from the Isle of Sanda through Ailsa Craig to the Ayrshire coast at Girvan. The results of the |
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| OF GREAT BRITAIN VOL. XXXII THE GRANITES <_)F SCOTLAND by J. G. C. ANDERSON, M.A., Ph.D. with ,a contribution...939 Price 2s. 6d. net PLATE l. GRANITES OF SCOTLAND (AJem. Geol. Surv.) A.- RUBISLAW QU ,\RRY, ABERL>EE:-1...Divisional Inspector of i\1ines and Quarries, Scotland, for help in compiling the list of working quarries...EOLOGI CA L Sl:RVEY EXHIBITION O F liTCF,, ROAD, SOUTH KENSINGTON, Lo~no~, S .vV.7. 24th July, 1939. ...Pitsligo, 36. Various, 3G References, 37. o:i;, THE SOUTH-WEST • Loch Doon and Cairnsmore of Carsphairn, 38 |
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| groups. Appendix 3: Minerals discovered first in Scotland 5 5 6 7 9 10 11 11 12 13 39 44 47 SYNOPSIS...groups; and minerals which were discovered first in Scotland. Some 15 per cent of the species listed in this...knowledge as to which mineral species occur in Scotland, but that there is also a need for greater precision...to find the first recordings of minerals new to Scotland since 1901. Many authors have been unaware that...described had not been recorded previously for Scotland or the United Kingdom. The main criteria for accepting |
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| Lower Palaeozoic 18 Lewisian 18 Basement gneisses south of the Great Glen Fault 21 Torridonian 21 Moine...sparker profile across the basalt-plateau scarp south-west of Canna 50 40 Geological map showing the distribution...55 Distribution of Quaternary formations to the south of Skye 66 56 Distribution and thickness of the...10 Generalised divisions of the Caledonides of Scotland and Northern Ireland 13 11 Isometric sketch showing...offshore sequences 40 • VI Foreword The west of Scotland and Northern Ireland have long been important |
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| occurrence of riebeokite in a micro-granite from Ailsa Craig. The following year it was described in a granitite...quarter-sheet No. 25 of the Geological Survey of Scotland. The specimens were obtained from three hills...the igneous rock is well seen in a quarry on the south side of the Black Hill. It is marked by a layer...rock, which rises in a steep cliff towards the south and east, but slopes more gradually towards the...difficult to obtain a specimen of any thickness. On the south side, the rock is much more compact, and breaks |
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| arfvedsonite-aegirine trachyte from West Kilbride, Scotland WEST of Glasgow in the West Kilbride-Faidie district...Tertiary age seen on the shore of the Firth of Clyde south of West Kilbride. Thin sections show the fresher...together with quartz, calcite, and irregular areas of opaque and poorly translucent matter. The quartz occurs...resulting in oxidation and hydration but, unlike the Ailsa Craig microgranite (Howie and Walsh, 1981), aenigmatite...REFERENCES Geikie, A. (1903) Mere. Geol. Surv. Scotland (N. Arran etc.). Howie, R. A., and Walsh, J. N |
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| ':'~rZ~-52 24r Mull Ardnamurchan Arran and Ailsa Craig Skye 52 54 I l5 4 25; ...:. :.'. -,. ..-...a leng time (the Sgurr excepted) (see Fig. 2). quartz porphyry sills and dykes (mostly part of composite...(Mussett et al. 1987). If this is true of all the quartz porphyries it is the only example known in the...correlation of polarity with petrology, and the quartz porphyries may provide a useful stratigraphic marker...58.5 _ 0.8 Ma has been determined for one of the quartz porphyry dykes (Mussett et al. 1987). Palaeomagnetic |
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| number of fine specimens of Double Termination Quartz Crystals of great brilliancy from Little Falls...exhibited a specimen of Crocidolite from Orange River, South Africa. Mr. ROBERT DUNLOP exhibited specimens of...Barium Sulphide and of Lead Crystals from Leadhills, South Lanarkshire, and made some remarks upon their occurrence...Ostracoda found in the strata of W e s t e r n Scotland, w i t h a R e v i s e d List of Genera and Species...o t h e Ardrossan station of t h e Glasgow and South-Western Railway. The paper w a s illustrated b y |
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| Institute of Geological Sciences Exhibition Road, South Kensington, London SW7 2DE • • • 111 CONTENTS... 1 FIRTH OF CLYDE 3 SEA OF THE HEBRIDES 7 SOUTH MINCH 7 MORAY FIRTH 7 FIRTH OF FORTH 9 REFERENCES...Colonsay-Jura area 5 Fig. 4. Solid geology of the South Minch 6 Fig. 5. Solid geology of the· Moray Firth...by the latitude and longitude of their south-west corners. South of the Dusk Water Fault system Upper...present, constituting a seaward extension of the Ayrshire coalfield. These pass southwards (as on land) |
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| facts that geographically the region lies further south, and that it does not present such a great elevation...whole of South Wales to the Bristol Channel, but with its southern edge extending no further south than is...ice—the northern ice apparently extending no further south off the Welsh coast than the Lleyn promontory. The...of a simple character and, as in other parts of South Wales, is of local oriuin. It consists of fragments...coast are said to run usually from north-west to south-east. He adds : " But it is clear that very many |
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| facts that geographically the region lies further south, and that it does not present such a great elevation...whole of South Wales to the Bristol Channel, but with its southern edge extending no further south than is...ice—the northern ice apparently extending no further south off the Welsh coast than the Lleyn promontory. The...of a simple character and, as in other parts of South Wales, is of local oriuin. It consists of fragments...coast are said to run usually from north-west to south-east. He adds : " But it is clear that very many |
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| younger, origin. The Ballantrae Igneous Complex, South Ayrshire. By D. F.G.S., Royal Scottish Museum. (PLATES...TN the early days of the Geological Survey of Scotland, the rocks •*- of the Ballantrae Igneous Complex...gleaned in the Lizard, Bonney quickly recognized in Ayrshire a correspondence in the nature of the phenomena...Serpentine and Associated Igneous Rocks of the Ayrshire Coast," Quart. Jour. Geol. Soc, xxxiv, 1878, 769...the memoir on The Silurian Rocks of Britain, I, Scotland, 1899. Some of Teall's conclusions, it may be |
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| Carnarvonshire. This part of the country stretches south-westwards as the broad promontory of Lleyn between...Antrim chalk, often very slightly abraded. . . . The south-western termination of this promontory affords several...Snowdonia, and has a breadth of about 5 miles. South-westwards the breadth varies from 3 to 5 miles,...coast is followed south-westward to the end of Lleyn and thence eastwards on the south side of the promontory...promontory to Criccieth. From Dinas Dinlle south-westwards as far as Gwydir Bay the coast-line is for the |
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| Mawr, ~ N. Wales ; in the " microgranite " of Ailsa Craig, 3 F i r t h of Clyde; in glacial deposits from...c h y t e " are dotted over the country to the south as far as Fokada, a distance of nearly 80 miles...felt of small lath-shaped felspars with a little quartz, uniformly distributed in which occurs in moss-like...characters. Prismatic sections compensate with the quartz wedge along their length, and give low angles of...pleochroism in the rocks from Mynydd Mawr, Berkum, and Ailsa Craig, bu~ differs slightly from that of the original |
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| of the Nonhem Granite from the Corrygills shore, south of Brodick. The cliffs behind tJ,e Main Rock Platform...THE CENTRAL RING COMPLEX .................. 6. SOUTH-EAST ARRA AND LAMLASH TO BRODICK .................Excursion 5) ........................ . ... Figure 14: South-east Arran (for Excursion 6) .......................... THE CENTRAL RING COMPLEX ............. . SOUTH EAST ARRAN AND LAMLASH TO BRODI CK ...............2, locality I, bed cl. The clasts include vein quartz, quartzite, chist, sandstone, siltstone and a11dcsite |
