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Barkevikite from
Lugar Sill, East Ayrshire, Scotland, UK


Locality type:Sill
Classification
Species:'Barkevikite' (not an IMA approved species)
Chemical Analyses:
Oxide wt%:
1
SiO242,48 %
TiO22,90 %
Al2O38,58 %
Fe2O36,81 %
FeO15,62 %
MnO0,39 %
MgO2,78 %
CaO13,45 %
Na2O6,32 %
K2O0,60 %
H2O0,25 %
Total:94 %
Sample references:
1 -
Comments:Howie (1963) corrects Scott's (1914) "barkevikite" to kaersutite.
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Barkevikite data
Locality Data:Click here to view Lugar Sill, East Ayrshire, Scotland, UK
Data Identifiers
Mindat Occurrence Record ID:1223493
Long-form Identifier:1:3:1223493:8
GUID (UUID V4):2ad674d7-6436-476f-8f1c-3e96d8b01183
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
a'H~. [vol. h x i i , ,7. The PICRITE-TEscIIENITE SILL ode LIIt~AR (AYRSIIIRE), By (~EOROE WALTER TYRRELL...Chemical Variations. (3) Average Magma of the Lugar Sill. (4) Composition, Identity, and Banding o f the...Comparison of the Lugar Sill w i t h the other Picrite-TesChenite Sills of Scotland. . . . . . . . . ...established for several occun-ences in the lowlands of Scotland. The Barnton occurrence, near Edinburgh , has...:D. Falconer has described a pierite-tesehenite sill at Ardrossan, intrusive into t h e Carboniferous
Journal (article/letter/editorial)
SHORT COMMUNICATIONS Kaersutite from the Lugar sill, Ayrshire, and from aln6ite breccia, Aln5 Island,...occurring as veins in the picrite of the Lugar sill, Ayrshire, Scotland, which has been termed lugarite by...amphibole was analysed by Scott (1914) who termed it barkevikite and compared it with the type material from Barkevik...a kaersutitic composition. It differs from the Lugar mineral in having a much higher Mg: (Fe2+§247 ratio...has a somewhat lower Fe2+:Fe a+ ratio than the Lugar kaersutite but for both minerals the 1%2+:Fe s+
Journal (article/letter/editorial)
crystallization of the teschenite from the Lugar Sill, Ayrshire W. J. PHILLIPS SUMMARY. Twelve stages in...biotite flakes, developed in liquid pockets after the sill had begun to consolidate, due to the coalescence...expansion and fracturing of the partially consolidated sill. It is argued that the separation of the gas phase...forms part of the composite sill in the coal measures at Lugar in Ayrshire has become well known as the...11 m (35 feet) and the lower 8 m (28 feet) of the sill. The petrography of the teschenite is described
Journal (article/letter/editorial)
the Lower Carboniferous of the Midland Valley of Scotland, and also to the type bekinkinites of Madagascar...the Barshaw bekinkinite, the picrites, and some Ayrshire theralites; the latter includes peridotites, kylites...illustrated in Table I by analyses of the Barshaw and Lugar rocks, both of which are here published for the...discussion will appear in a detailed paper on the Lugar sill. It will be seen that the analyses are unique...Quantitative Classification, the type-rock from Lugar falls into II, 7 . 1 . 5, a hitherto unoccupied
Journal (article/letter/editorial)
of the -"- teschenites of the Midland Valley of Scotland, and are an attempt to produce a working classification...teschenitic intrusions in the Midland Valley of Scotland, and since his description of the Carcraig rock...Tyrrell (5) we owe the classification of the West of Scotland teschenites into three groups :— (1) Glasgow type...Cathcart type with nepheline. Some of the East of Scotland teschenites have, however, no place in this...the above definition is that the presence of barkevikite is considered essential. Holmes (8) defines a
Journal (article/letter/editorial)
Glacial deposits were removed we should see the south-east solid angle standing higher than the three others...to the North Tyne and to the Eden from the north-east. As a result of this watershed and the westerly...recognition 2of teschenites in the Midland Valley of Scotland, J_ first by Teall and later by several other...Tyrrell—Bekinkinite of Barshaw, Renfrewshire. 305 Scotland. A preliminary description of this rock as a weathered...in a plantation a little to the east of Barshaw House, H miles east of Paisley, along the Glasgow road
Journal (article/letter/editorial)
MINERALOGICAL LABORATORY, NO. X X V . Barkevikite from I~tgar, Ayrshire. By ALSXA~)Ea Sco~% M.A., B.Sc. [Read...alkali-rich rocks have been described, I N containing barkevikite or ' barkevikitic hornblende.' So far as I am...Permo-Carboniferous rocks of Ayrshire, with comparatively large cl~stals of barkevikite, it was decided to examine...veins and dykes intrusive into the picrite of the Lugar sill and a s ' Schlieren' and irregular patches in... and consists essentially of phenoerysts of barkevikite, titanaugite, and labradorite in a groundinass
Journal (article/letter/editorial)
the investigation of a differentiated teschenite sill near Gunnedah, New South Wales, a study of the literature...recognition of teschenites in the Midland Valley of Scotland is due to Teall (1888, p. 191) in his description...olivine as an essential constituent. Presence of barkevikite as an essential constituent. Zeolite content...Eyles, Simpson and MacGregor, 1929, p. 378). Barkevikite essential (Holmes, 1920, p. 224; Iddings, 1913...1913, p. 248; Johannsen, 1938, p. 228;). Barkevikite may or may not be present (Walker, 1923, p. 241; Hatch
Journal (article/letter/editorial)
resembling mafic members of alkaline basalt suites from Scotland and Australia. Presence of distinctively diopsidic...807 County on the west to Travis County on the east, with the greatest variety and concentration in...limestone. Locally intercalated in the Grayson formation east of Mustang Hill are submarine volcanic mudflows...Rock Analysis Laboratory) 2. Kylite of Benbeoch, Scotland (Johannsen, 1939, vol. IV, Table 83, No. 4) 3...Table 3), and optical data 1 Kylite, Benbeoch, Scotland (See Table 1, No. 2) (Johannsen, 1939, v. IV,
Journal (article/letter/editorial)
brown hornblende has usually been referred to as barkevikite (by Dewey and others) but in a personal communication...(100 Mg/(Mg+Fe2++Fe3++Mn)) of 58.1, and the Lugar Sill, Ayrshire (Howie, 1963), with an Mg ratio of 57.3
Journal (article/letter/editorial)
of the Permo-Carboniferous rocks of the West of Scotland. 2 6 2 Hibsch (1910, p. 427) is of the same...universal among the PermoCarboniferous rocks of Ayrshire. The Tertiary analcite-rocks in Arran show similar...essexites of Crawford]ohn (Scott, 1915, p. 457) and Ayrshire the olivine crystals are often surrounded by rims...optical properties are somewhat different. In the Ayrshire rocks, the purple augite has sometimes a periphery...no crystals of any other mineral, but in a few Ayrshire rocks, numerous very fine needles of green amphibole
Book (edition)
thin section, from contaminated 110rite, Arnage, Scotland 54. Simplified ,nap of the Carboniferous lava...crystals developed perpendicular to the roof of the sill, Porth/even, Cornwall 78. Granite-pegmatite, Porth/even...Riebeckite-microgranite, Ailsa Craig, Firth of Clyde, Scotland 84. Riebeckite-microgranite, Mynydd Mawr, Carnarvonshire...n1icrodiorite ("porphyrite"), Shore, Dalbeattie, Scotland Hornblende-augite andesite, Col d'Entrenwnt, Contal...Norway Troctolite, Bel/zelvie, Aberdeenshire, Scotland Augite-cwnmingtonite-olivine-norite, Risor, Norway
Book (edition)
quartz-bearing rocktypes including pitchstones from Arran, Scotland, obsidian from the Yellowstone Park, quartz-porphyries...those occurring in the Markle-type basalts in Scotland. They consist of penninitic chlorite, about 66...quartz-dolerites, including the well-known British Whin Sill, contain hypersthene associated with other pyroxenes...analogous with titanaugite among the pyroxenes. Barkevikite is also included in this group; its colour also...with the exception of basaltic hornblende, as barkevikite. The identifications were based on optical techniques
Book (edition)
quartz-bearing rocktypes including pitchstones from Arran, Scotland, obsidian from the Yellowstone Park, quartz-porphyries...those occurring in the Markle-type basalts in Scotland. They consist of penninitic chlorite, about 66...quartz-dolerites, including the well-known British Whin Sill, contain hypersthene associated with other pyroxenes...analogous with titanaugite among the pyroxenes. Barkevikite is also included in this group; its colour also...with the exception of basaltic hornblende, as barkevikite. The identifications were based on optical techniques
Book (volume)
. . . .315 Kaersutite ......... 321 Barkevikite ......... 328 Glaucophane-Riebeckite Richterite...pyroxene granulite, Eilean Carrach, Ardnamurchan, Scotland (Muir and Tilley, 1958). Anal. J. H. Scoon. 4...in the orthopyroxenes of the Insizwa intrusion, East Griqualand, has been given by Bruynzeel (1957)....pigeonite. Likewise in the Skaergaard intrusion, east Greenland (Wager and Deer, 1939), orthopyroxene...stages of fractionation of the Skaergaard intrusion, east Greenland. Min. Mag., vol. 31, p. 511. Bruynzeel
Book
Edition Andrew J. Barker University of Southampton, UK HANDBOOK OF Clinical Applications EDITED BY George...informa business © 2014 Taylor & Francis Group, London, UK Typeset by diacriTech Limited, Chennai, India Printed...section / Andrew J. Barker, University of Southampton, UK.   pages cm Includes bibliographical references and...(1999), which are widely used by botanists in the UK. It involves a stepped sequence defining characteristic...of hornblende. Hornblende gneiss; Sleat, Skye, Scotland. c) Irregular but somewhat arranged fractures
Book (edition)
Rocks Section through a Batholith (Bavaria) Multiple Sill ..... .... ..... ......... . Composite Sills and...Vertical Section Illustrating Differentiation of Lugar Sill Differentiation in Stocks and Batholiths Differentiation...Regions of Highly- folded and Compressed Rocks. Sill. Concordant. Laccolith. Lopolith. Phacolith...of North The largest of these is the Great Whin Sill (quartzwhich traverses five counties in the North...the quartz-dolerite sills is the series of great east-west dykes traversing the above region, which have
Book
Limited Longman House Burnt Mill, Harlow, Essex, UK Associated companies, branches and representatives...gabbro picrite, Border Croup. Skaergaard intrusion. East Greenland; magnification x 23. Monticellite Monticellite...Specimen from marble, cation x 28. Kilchrist, Skye, Scotland; magnifi- Zircon Zircon ZrSiQ4 = Symmetry...middle specimen from garnet mica schist. Pitlochry, Scotland, magnification x //. Bottom specimen from segregation...magnification x 20. nepheline syenite, Assynt, Scotland Vesuvianite (Idocrase) Vesuvianite (Idocrase)
Book
Bentley House, 200 Euston Road, London nwi 2DB 32 East 57th Street, New York, NY 10022, USA 296 Beaconsfield... igneous rocks 26 ‘Newer Granite’ complexes of Scotland (19). Here may be mentioned the even-grained Main...are to be found among the ‘Newer Granites’ of Scotland, such as the porphyritic and non-porphyritic phases...found in Britain among the ‘Newer Granites’ of Scotland as, for instance, the Cruachan ‘granite’ of the...clinopyroxene, Beinn Cruachan, Argyllshire, Scotland. Biotite (bi), green hornblende with cores of
Book (edition)
Section through a Batholith (Bavaria) 38, Multiple Sill. eu 19. Composite Sills and Dykes 20. Block Lava...Vertical Section Illustrating Differentiation of Lugar Sill. — . 151 Differentiation in Stocks and Batholiths... Compressed Rocks. Concardant, ^ Discordant, Sill A Phacolith, Tin Concordant Batholith. UM ; cDyke...Britain. The largest of these is the Great Whin Sill (quartzdolerite), which traverses five counties...the quartz-dolerite sills is the series of great east-west dykes traversing the above region, which have
Book (edition)
(Bavana) through a Bathol.th !?: Sechon _ 18. Multiple Sill • . • Composite Sills and Dykes . . . Vesuvius...Differentiation of Carrock Veil Gabbro 150 Differentiation of Lugar SUI Vertical Section Illustrating « « iSt Differentiation...source of the quartz-dolerite sills is the which have east-west dykes traversing the above VVhile a fissures...occasionally be demonconnection between dyke and sill can a sill and dykes are often seen to cut through strated...in the strata^ where another sill may be thrown off. Nevertheless, the sill may have proceeded from the
Book (edition)
provinces, such as the island of Mull in western Scotland or the Pacific island of Tahiti, and, as might..."~ater, or ,vhcn 1nagn1a at the margins of a dike or sill is locally chilled by sudden contact ,-vith invaded...minerals in tvvo generations: biotite and/or barkevikite, with augite, olivine, and rarely melilite as...leads to appearance of such minerals as biotite, barkevikite, orthoclase, nephe- CHARACTERJSTICS OF IGNEOUS...Analcite-bearing olivine gabbro, usually with barkevikite and titaniferous augite. b. 1'hcralite. N ephcline-bearing
Book
Wallace S. Pitcher for metamorphic rocks from Scotland and Ire¬ land; Professor H. H. Hess for Triassic...Microlites and Crystallites A. Isle of Arran, Scotland. Diam. 1 mm. Phenocrysts of quartz, augite, and...individual flows and sills. The famous Palisades sill of New Jersey, for example, consists for the most...8. Basalts A R A. Mugearite, Isle of Skye, Scotland. Diain. 3 mm. Essentially composed of olivine...shown in this section, Imt found elsewhere in the sill from which tliis specimen came, are a little interstitial
Book (edition)
Other transformations Enclosures in the Palisade sill Temperature of flowing lava ... The geological thermometer...ILLUSTRATIONS PLATES PLATE I. II. III. The Palisade sill, New Jersey Frontispiece Dolerite dyke with granite...Transvaal ... 18. Skeleton crystal of sphcne, Scotland ... 19. Skeleton crystals of apatite, South Africa...Rum, Scotland 22. The system nepheline-kaliophilite-silica 23. The Lugar sill, Ayrshire, Scotland 24....26. Variation in olivine-content, Shiant Isles, Scotland 27. The system magnesia-silica ... 28. Sympathetic
Report (issue)
GEOLOGICAL. soilVEY OF GREAT BRITAIN SCOTLAND The Geology • · .of ·. East Fife (Explanation of the Fife...880164 3 '. PLA'fE I (Fro,rtispiece) Geology of East Fife (Me111. Geol Surv.) RAlSED BT:ACflbS, Kl CRAIG...marine regression (D 1766) PREFACE THE district of east Fife as described in this memoir includes most of...Sheet 41 of the 'One--inch' Geological Map of Scotland and the south...eastem part of Sheet 49. These...results of which have already been published. The east Fife portion of Sheet 49 was resurveyed between
 
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