 | | Journal (article/letter/editorial) | | This seems the nearest case to the alteration in co. Antrim I am about to describe. As most geologists know... altered chalk at Scawt Hill, an old volcanic neck, about 6 miles north of Larne, came upon a dyke traversing...traversing the ' neck' dolerite of the hill and cutting across a narrow band of chalk. The geological...district is that common to the basaltic plateau of Antrim, and consists of the basic lava-flows covering...variety of Ireland. Of this hill the Irish Survey Memoir to Sheet 20 states that " at Slieve Scawt the Chalk |  | | Report (issue) | | to 100%, computed free of insolubles, taken as diopside, garnet, vesuvianite, etc., corresponds to (Ca3:79...carbonatite (Iron Hill, Colorado, USA); along a diabase-chalk contact (Scawt Hill, Ireland); in zeolitized...garnet, diopside. Distribution: On Iron Hill and in Cebolla Creek, near Powderhorn, Gunnison Co., Colorado...Colorado, USA. From Scawt Hill, near Larne, Co. Antrim, Ireland. In the Gardiner complex, beyond the head...and later alterations of the uncompahgrite of Iron Hill, Colorado. Amer. Mineral., 17, 343{356. (3) Kruger |  | | Journal (article/letter/editorial) | | (1948).The minerals were found in a contact zone in Larne, IreIand and given the names larnite and bredigite...grossularite, idocrase, wollastonite, radiophyllite, diopside, melilite, serpentine and plagioclase. King (1962)...Tertiary dolerite at Scawt Hill, Co. Antrim, Ireland. Tilley named the mineral after Larne, which is near the...(1948)describedanother form (a') of CarSiO+from Scawt Hill which they designatedas bredigite after Bredig...(1952) a: | .7 13 B:1.7t7 I - r ' Scawt Hill, County Antrim t " 4 (+) 2V 30' (Tilley and Vincent |  | | Report (issue) | | 100.00 (1) Val di Fassa, Italy. (2) Carneal, Ireland; by electron microprobe. (3) Ca2 Al(AlSi)O7 : Polymorphism...olivine, nepheline, leucite, merwinite, spurrite, diopside, ferroan spinel, phlogopite, pyrope, grossular...Trentino-Alto Adige, Italy. On Scawt Hill, near Larne, and at Carneal, Co. Antrim, Ireland. At Camas Mµor, Isle...Riverside Co., California; from the Tres Hermanas district, Luna Co., New Mexico; and at Iron Hill, Gunnison...Gunnison Co., Colorado. From the Terneras mine, Velarde~ na, Durango, Mexico. Name: After the German chemist |  | | Journal (article/letter/editorial) | | Crystals of spurrite and tilleyite from Cornet Hill, Metaliferi Massif, Apuseni Mountains, Romania,... and scawtite from the type locality in Scawt Hill, Ireland, were used to refine the structures to R...silicate–carbonate, Apuseni Mountains, Romania, Scawt Hill, Ireland, classification of structures. SOMMAIRE...et la scawtite provenant de la localité type, Scawt Hill, en Irlande, ont servi pour l’affinement des...silicate–carbonate, montagnes Apuseni, Roumanie, Scawt Hill, Irlande, classification des structures. INTRODUCTION |  | | Journal (article/letter/editorial) | | Manual of the Mineralogy of Great Britain and Ireland (1858). These lists were published in the Reports...Somerset; 1 from Cheshire; 2 from Scotland; and 2 from Ireland). Geographical distribution of the minerals: of...England (75 of which are from Cornwall); 28 from Ireland; and 10 from Wales. (The remaining 12 minerals...(48 from Cornwall); 35 from Scotland; 19 from Ireland; and 7 from Wales. The remaining 5 are simply British...example, for SW England, Pennines and northern England, Wales, Ireland, Scotland, etc. When this has been |  | | Journal (article/letter/editorial) | | XXll. The dolerite-chal]c contact of Scawt Hill, Co. Antrim. The production of basic alkali-roclcs... Field Occurrence. Scawt Hill, situated six miles n o r t h of Larne, Co. Antrim, forms a prominent height...edge of the Antrim 'plateau basalt' lavas. The geological structure of this portion of Antrim is comparatively...chalk and older Mesozoic rocks is covered by the Antrim Tertiary basalts, which are divisible into a lower...of bauxitic and pisolitic iron-ore deposits. Scawt Hill itself forms a mass of olivine-dolerite breaking |  | | Journal (article/letter/editorial) | | minerals from the limestone contact-zone of Scawt Hill, Co. Antrim. By C. E. TmLEY, B.Sc., Ph.D., F.G.S. Department...and Tertiary dolerite at Scawt Hill, T HEnearcontact-zone Larne, Co. Antrim, consists of an assemblage...given in 1927.1 The rocks of the contact-zone of Scawt Hill were described as long ago as 1907 by G. C. Gough...the axis of symmetry. The orientation of the Scawt Hill spurrite is such that in the plane (010) 1 C...it is proposed to designate it as larnite, from Larne, in the vicinity of which these contact minerals |  | | Journal (article/letter/editorial) | | XIV.—The Tertiary Dolerite Plugs of North-East Ireland—A Survey of their Geology and Geochemistry.* By...associated with the Tertiary lava plateau of north-east Ireland. All but two of the plugs are composed of olivinedolerite...INTRODUCTION igneous activity in the north-east of Ireland was both widespread and varied in nature. An extensive...in north Antrim these are of olivine-free or olivine-poor tholeiitic basalt, and in mid-Antrim of rhyolite...12 13 14 15 16 17 18 19 20 21 22 23 24 County Antrim Brockley, Rathlin Island Bendoo, S.E. of Ballintoy |  | | Journal (article/letter/editorial) | | habit and mode of occurrence the original find at Scawt Hiil. Crystals are in general poor, but it has been...cell dimensions: oo : 1 0 . 2 2A , aibic bo: co : 1 5 . 4 2A , 0.6628:1:0.4345 A: 6.70 A 100"29'...colorless mineral in thin veins in a matrix of massive diopside-wollastonite-spurrite rock. Where the veins are...only at Scawt Hill, County Antrim, Ireland, Tilley (1930), and Ballycraigy, Larne, N. Ireland, McConnell...University, has completed a study of scawtite from the Scawt Hill and Ballycraigy occurrences.Our results are in |  | | Journal (article/letter/editorial) | | dolerite and Chalk at the intrusion of Scawt Hill, Co. Antrim, Ireland. The melilite occurs both in the hybrid...melilite of the hybrid rock. The dolerite of Scawt Hill is a normal ophitic type built up essentially...100-00 99-86 100-51 100-34 1. Humboldtilite, Scawt Hill, Co. Antrim. Analyst, Dr. H. F. Harwood. la. Analysis...akermanite, and pseudo-sarcolite, the melilite of Scawt Hill corresponds (see Formula A) quite closely to...akermanite. composition of melilite (humboldtilite) of Scawt Hill. 1 = melilite is graphically plotted together |  | | Report (issue) | | apophyllite. Tobermorite, clinohedrite, wollastonite, diopside, thaumasite, laumontite, stilbite, Distribution:...Leesburg, Loudoun Co., Virginia; from Franklin, Sussex Co., New Jersey; in the Hunting Hill quarry, Rockland...Montgomery Co., Maryland; on Isle Royale, Lake Superior, Michigan; at Crestmore, Riverside Co., California;...California; and at Christmas, Gila Co., Arizona. In Canada, at Point Shivery, Bay of Islands, Newfoundland...Arsiero, Vicenza, Italy. From Scawt Hill, near Larne, Co. Antrim, Ireland. At Broadford, Isle of Skye, |  | | Report (issue) | | spurrite, larnite, merwinite, \fassaite," grossular, diopside, forsterite. Distribution: Occurrences are typically...Crestmore, Riverside Co., California; on Cascade Mountain, Adirondack Mountains, Essex Co., New York; and...the Tres Hermanas district, Luna Co., New Mexico, USA. On Dufresne Hill, Oka, Quebec, Canada. From near...Ardnamurchan, Argyllshire, Scotland. At Scawt Hill, near Larne, Co. Antrim, Ireland. In the Wessels mine, near Kuruman |  | | Report (issue) | | 0:01 )§=1:02 Si 0: 99 O3 : (2) North mine, Broken Hill, New South Wales, Australia; corresponds to (Ca0:76...carbonatites. Association: Calcite, grossular, diopside, vesuvianite, º akermanite, merwinite, larnite...Campania. In Ireland, at Dunmorehead, Mourne Mountains, and Scawt Hill, near Larne, Co. Antrim. From Kongsberg...and Diana, Lewis Co., New York; from Crestmore, Riverside Co., and Darwin, Inyo Co., California; in a... Esmeralda Co., Nevada. In Canada, at Oka and Asbestos, Quebec; at Outlet Post, Leeds Co., Ontario. From |  | | Journal (article/letter/editorial) | | Progressive metasomatism in the flint nodules of the Scawt Hill contact-zone. (With Plate XXI.) By C. E. TILLEY...describing the chief assemblages of the Scawt Hill contact-zone in Co. Antrim brief reference was made to the... METASOMATISM IN" FLINT NODULES 515 hedenbergitic diopside. In some examples aegirine occurs as fine fibres...ALDERMAN ON colour of much of, the xonotlite of Scawt Hill must be ascribed to ferrous iron which with sodium...K~O . . . . . . H20 + ... H20-... P~05 . . . . . . CO s . . . . . . Cr20a . . . . . . S ...... II. 51-57 |  | | Journal (article/letter/editorial) | | The Geology of North-East Ireland account of the geology of North-East Ireland, which lies within the region...quarter-inch Sheets 2 and 5 of the Geological Survey of Ireland, contributions have been made by C. H. Emeleus...Charlesworth has written the remaining sections and co-ordinated the whole. TO THIS COMPOSITE 1. INTRODUCTION...rocks of the Highland Border Ridge of north-east Antrim (and their western continuation in the Sperrin...and Castlereagh Hills. 2. DALRADIAN ROCKS OF CO. ANTRIM Schistose rocks underlie about seventy square |  | Marincea, S., Bilal, E., Verkaeren, J., Pascal, M.-L., Fonteilles, M. (2001) SUPERPOSED PARAGENESES IN THE SPURRITE-, TILLEYITE-AND GEHLENITE-BEARING SKARNS FROM CORNET HILL, APUSENI MOUNTAINS, ROMANIA. The Canadian Mineralogist, 39 (5) 1435-1453 doi:10.2113/gscanmin.39.5.1435 | Journal (article/letter/editorial) | | TILLEYITEAND GEHLENITE-BEARING SKARNS FROM CORNET HILL, APUSENI MOUNTAINS, ROMANIA ŞTEFAN MARINCEA§ AND...tilleyite- and gehlenite-bearing skarns from Cornet Hill, part of the Metaliferi Massif, Apuseni Mountains...metasomatic event, which produced, for example, diopside veins cross-cutting tilleyite, spurrite, and gehlenite... tobermorite, riversideite, plombièrite, Cornet Hill, Romania. SOMMAIRE Dans cet article, nous décrivons...conduit, par exemple, au développement de veines de diopside recoupant la tilleyite, la spurrite ou la géhlénite |  | | Journal (article/letter/editorial) | | been recorded from the contact zone at Scawt Hill, Northern Ireland (5), which has some points of resemblanceto...assemblage of Scawt HilI and what Tilley refers to as the more normal (low temperature) diopside-wollasto... Merwinite has been previously recorded from Scawt Hill (8)' Crestmore, California (9), and Velardefla...Tilley, C. E., Scawtite, a new mineral from Scawt Hill, Co. Antrim: Minerutr. M a g . , v o l . x x i i ,...minerals from the limestone contactzone of Scawt Hill, Co. Antrim: Mineral. Mag., vol. xxii' 1931, pp.77-8 |  | | Journal (article/letter/editorial) | | 569 Wollastonite solid solutions from Scawt Hill, Co. Antrim. By C. E. TILLEY, Ph.D., B.Sc. Professor... [Read June 24. 1937.] OLLASTONITE at Scawt Hill, Co. Antrim, ocours as a conW stituent of both the...normal to the axis ft. Crystallographically these Scawt Hill wollastonites agree with the normal wollastonite...comparable with the highest obtained from the Scawt Hill wollastonites contains a p p r o x i m a t e... 5-454.] WOLLASTONITE SOLID SOLUTIONS FROM CO. ANTRIM 571 F e S i O 3. F e r g u s o n and Merwin |  | | Journal (article/letter/editorial) | | The amygdale minerals in the Tertiary lawl,s of Ireland. I I . The distribution of gmelinite. By GEORGE...confined to a narrow zone ahmg the eastern seaboard of Antrim. This zone comprises less than 1% of the m~ea of...narrow belt of lavas along the eastern seaboard of Antrim, referred to in this paper as the gmelilfite zone...(]melinite has long been known to occur in the east of Antrim, and most mineral collections contain specimens...excellent summary of the amygdale minerals of the Antrim Basalts, published in his memoir of ]843, gave |  | | Journal (article/letter/editorial) | | was obtained for this microscope initially by Ireland (1982) and refined whenever possible. Table 2....the dolerite limestone contact at Scawt Hill, Larne, Northern Ireland (described by Tilley and Vincent... It appears as small, lenticular grains, usually co-precipitated with calcium ferrite. E-calcium orthosilicate...Oxygen 4 4 0 A - natural larnite specimen from Scawt Hill B - pure calcium orthosilicate, indexed as larnite...the dolerite-limestonecontact at Scawt Hill, Larne, Northern Ireland. Scale bar 1 pm. (B) The sinter larnite |  | | Journal (article/letter/editorial) | | be recognized. Rankinite, since its record at Scawt Hill in 1942, has been found in the island of Muck...representing the phases in the system CaO-SiO 2 -CO 2 (Text-fig. 1). Wo CaO TEXT-FIG. 1.—A condensed...diagram of Text-fig. 1. With movement away from the CO 2 corner the indicating lines encounter successively...below. 1. 2. 3. 4. 5. talc* tremolite forsterite diopside periclase 6. wollastonite 7. monticellite 8....and its associated minerals from Carlingford, Ireland. Miner. Mag., xxviii, 151-8. TILLEY, C. E., 1942 |  | | Journal (article/letter/editorial) | | of magnetite, the magnesium going to form the diopside. The parts where there was an abundance of magnetite...EXPLANATION OF PLATE V. FIG. 1.—Diabase: Scawt Hill, co. Antrim, x 15. The zoning of the augites is well...six-sided section. FIG. 2.—Calc-silicate Hornstone : Scawt Hill, x 15. This shows the difference due to the varying...the other. FIG. 3.—Calc-silicate Hornstone : Scawt Hill, x 25. The idiomorphic character of some of the...I-'ir;. 2. Fit;. Metamorphism of Chalk : Scawt Hill, Co. Antrim. Downloaded from https://www.cambridge |  | | Journal (article/letter/editorial) | | with 332 figures. London and New York : McGraw-Hill, 1937. Price 36s. TN this large book Professor Emmons...(1) " Wollastonite solid-solutions from Scawt Hill, Co. Antrim." By Professor C. E. Tilley. Wollastonites...rocks (wollastonite-bearing dolerites) of the Scawt Hill contact zone. 526 Reports and Proceedings—Mineralogical...illustrated by reference to the preparation of diopside glass. (3) " Some new pyroxenes included in the...the system clinoenstatite, clinohypersthene, diopside, hedenbergite." By Mr. W. A. Deer and Mr. L. R. |  | SABINE, P. A., BECKINSALE, R. D., EVANS, J. A., WALSH, J. N. (1982) Geochemical and Strontium-Isotope Studies of Reactions between Basic Magma, Chalk, and Flint, and the Role of Groundwater, in the Carneal Plug, Co. Antrim, Northern Ireland. Journal of Petrology, 23 (3) 427-446 doi:10.1093/petrology/23.3.427 | Journal (article/letter/editorial) | | of Groundwater, in the Carneal Plug, Co. Antrim, Northern Ireland institute of Geological Sciences, Exhibition...March 1982) ABSTRACT The Carneal plug, Co. Antrim, Northern Ireland, is a Tertiary dolerite intrusion, 150...Tertiary basaltic lavas at Carneal, Co. Antrim, Northern Ireland, incorporates blocks of the underlying...Carrickfergus Sheet 29, Geological Survey of Northern Ireland). The position of the Carneal phig is indicated...which the Carneal plug is intruded comprise the Antrim Lava Series. Downloaded from http://petrology |
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