 | | Journal (volume) | | ... ..... . ........... . ....... Microcline perthite ............................................ Albite...ses situated on the north side of the Kaatiala quarry there occur layers containing an abundance of muscovite...minerals contained in the hornblendite are alte red plagioclase, chlorite, apatite and opaque minerals...across about one kilometer north of the Kaatiala quarry. Quartz diorite and granodiorite, granite and...al., 1949). The mineral designation »microcline perthite» has been used only in connection with the pegmatites |  | | Journal (issue) | | Show questionnaire was returned by 164 visitors and new names will be added for our direct mail shot. Our...areas to previous years: Haywards Heath/ Burgess Hill/Lindfield/ Cuckfield/Horsham 53 Brighton/ Worthing/...Chichester/Rustington/Midhurst 1O Middlesex 1O Lewes 7 Hampshire 7 Eastbourne and Hastings 4 then Berks and Herts...shortly be moving to Cornwall, so watch out for some new finds in the South-West! Laszlo Palinkas from Hungary...6") group of calcite scalenohedra from Harnhill Quarry, Olveston, Gloucestershire and a wide range of |  | | Report (edition) | | is the \Vholesale Agent to the Trade outside the County of London. • • _ :: 1916. P1·ic.e One Shllling...LTM'I!:. Uses, Statistic.9 Treatment a.nd 5 13 :-Red and Coralline Crags; Chalk; Chloritic Mflrl ; Ganlt;...potash- and socla-felspar, to which the name 'perthite' is applied, is usually of so intimate a character...intergrown in almost all proportions, but the typical perthite has a potash-content of about 7 per cent. (4264...silicate (water-glass) along with pure alumina.+ By a new Swedish process £elspar is used to obt,ain a glassy |  | | Journal (issue) | | Appendix A: Petrography of the Fallgate and Milltown Quarry boreholes, by R. W. Elliot, B.Sc. . . . .· Appendix...Price 30s.-Od. (by post 30s. 9d.). . !.-Moine- Old Red Sandstone Ui;iconformity at Sugar Loaf Island, near... Mozambique, by R. K. Harrison, M.Sc., J.E. T. Horne, M.A. and D. Atkin, M.Sc. 77 IX.-Determination...X-ray diffraction data for thortveitite, by J.E. T. Horne, M.A. . . Ill 6538 A• 91 92 93 94 95 96 97 ...district Radiometry of the east face of Windy Knoll Quarry, near Castleton Radiometry of Treak Cliff Cavern |  | | Report (issue) | | 78/2 INSTITUTE OF GEOLOGICAL SCIENCES The Old Red Sandstone intrusive complex of northern Northmaven...Environment Research Council Report 78/2 The Old Red Sandstone intrusive complex of northern Northmaven...hydrothermally altered granite from the Lang Ayre, Ronas Hill 30 4 The Ronasvoe Breccias, field photographs 31...Breccias 35 I FIGURES TABLES I Location of the Old Red Sandstone intrusive complex of Northmaven 3 2 Distribution...the Main Granite along the line I-Iillswick-Ronas Hill-Loch of Housetter 21 10 Hydrothermal alteration |  | | Journal (article/letter/editorial) | | localities, and authors mentioned in the 3oth List of new mineral names are not included in this Index, nor...in adularia by means of optical microscopy, infra-red absorption, and electron microscopy, 453; -and ZUSSMAN...Alabandine, I.R. spectrum, 277 and MI7 ALABASTER(C.), A new wulfenite locality near Bristol, 298 Albite, Greenland...determination in pumice by X-ray diffractometry, io3; New South Wales, sedimentary, partial anal., cell-size...transformation to mullite and silica, 195 Andradite, New Zealand, anal., M 14; stannian, from a tin slag, |  | | Journal (article/letter/editorial) | | thrust plane (the Sgonnan Beag Thrust of Peach and Horne 1907). The petrological diversity of the Borralan...nomenclature for these rocks, which largely form the hill of Cnoc-na-Sroine, will be adopted here. Descriptions...summit of Cnoc-na-Sroine, and Shand (1906) from a quarry behind Aultnacealgach, where the quartz syenites...given by Tilley (1958). Eight new analyses are presented here (Table I). The new analyses were obtained by...from Gemmel 1910. SH from Shand 1906. Remainder are new XRF analyses. 0.0 0.5 15.7 9.6 2.8 19.3 . |  | | Report (issue) | | C. A. Michael. COLD NUGGET FROM SPOTSYLVANIA COUNTY: Longest dimension approximately 13 cm., photograph...updated “check list” just alluded to, (2) a county-by-county listing of the minerals, and (3) resumes of...(Haydcnitc) 9 Virginia Mineral Localities by County This list is included for possible aid in planning...listed only* if localities arc given for them. The county lists do not include com mon rock-making materials...to occur only as traces. ACCOMACK COUNTY: none given. ALBEMARLE COUNTY: actinolitc, agate, almandine, amethyst |  | Kontak, Daniel J., Dostal, Jaroslav, Kyser, T. Kurt, Archibald, Douglas A. (2002) A petrological, geochemical, isostopic and fluid-inclusion study of 370 Ma pegmatite-aplite sheets, Peggys Cove, Nova Scotia, Canada. The Canadian Mineralogist, 40 (5) 1249-1286 doi:10.2113/gscanmin.40.5.1249 | Journal (article/letter/editorial) | | variety of granophile-element mineralization (e.g., New Ross area; Logothetis 1985, O’Reilly et al. 1982...weak, but distinct Acadian fabric. In addition, Horne et al. (1988, 1992) have shown that the orientation...later phase-2 plutons (HP: Halifax pluton, NRP: New Ross pluton, EDP: East Dalhousie pluton, WDP: West...area at Peggys Cove. Geology after MacDonald & Horne (1988). 1252 THE CANADIAN MINERALOGIST Mapping...referred to as the Halifax Pluton (HP; MacDonald & Horne 1988).The rocks comprising the HP (Fig. 1) are subdivided |  | | Journal (article/letter/editorial) | | W. T. sis of. (Bannister).. . 397 Moraesite, a new hydrous Adams,J. W. with Glass,J. J. Genberylliirm...razrl.... ... 1126 Co., Colo.. 858 Barium feldspar, new occturenceat Afwillite from Crestmore, CaliforOtjosondu...BiVOr. 489 um, New Mexico. 893 and Berry, L. G. The space Allophanes from Lawrence County, group of conichalcite..., . . . Augelite from pegmatites in New . 3 5 5 ,3 5 8 Hampshire.(Seaman) 729 Bauer, L. H. with Frondel...gralxitic 891 rocks.. Burbankite arrd calkinsiter two new carbotrateminerals from Mont a n a .( P e c o r aK |  | | Journal (article/letter/editorial) | | largely of red conglomerate. These were mapped and describ ed by Peach & Horne in 1914 as Old Red Sandstone...but they also contain boulders of a distinctive red quart z syenite. These were derived ent irely from...stro ngly suggests that the sediments are of Old Red Sandstone age. Department of Geography and Geology...metamorphic rocks are overlain by small outliers of red conglomerate and intruded by the Ben Loyal igneous...metamorphic floor. Despite the absence of fossils an Old Red Sandstone age was generally accept ed on the grounds |  | | Journal (article/letter/editorial) | | sericite and carbonate; these beds are overlain by red fluviatile sandstones cemented by a combination of...that given by Teall (in Peach, Horne et al., 1907, 278-90). More recently new data have been given on Rhum...Torridonian Sediments was given by Teall (in Peach, Horne et al., 1907,278-90). Little can be added to this...L ITHOFACI ES SELLEY 1965 STRATIGRAPHY PEACH & HORNE 1907 AULTBEA GP. Absent. I , , I I TORRIDONIAN...Orthoclase (ii) Microcline { (iii) Microperthite (iv) Perthite (v) Plagioclase (Albite-Oligoclase) (vi) Untwinned |  | | Journal (article/letter/editorial) | | 193 VIII. Intrusive Rocks older than the Lower Old Red Sandstone 194 PAGE IX. The Hornblende-Schist Complex...for, in referring to the section at Leny Old Lime Quarry, Callander, he remarks that " both the texture...Radiolaria in some of the cherts. Messrs PEACH and HORNE were struck with the close resemblance in lithological...basic eruptive rock with the graphitic schist and red and black radiolaria-bearing cherts, so exactly a...rocks of the Southern Uplands by Messrs PEACH and HORNE led to their being marked on the Survey maps as |  | Clarke, D.Barrie, McCuish, Krista L, Vernon, Ron H, Maksaev, Victor, Miller, Brent V (2002) The Port Mouton Shear Zone: intersection of a regional fault with a crystallizing granitoid pluton. Lithos, 61 (3) 141-159 doi:10.1016/s0024-4937(02)00077-4 | Journal (article/letter/editorial) | | University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3315, USA Received 15 November 2000; accepted...cross-hatch twinning, some development of flame perthite, and poikilitic inclusions of unstrained plagioclase...plutonism in the northern Appalachians, from the New England states to Newfoundland (Cawood, 1993; Williams...1995; Doig et al., 1996; Piper and Pe Piper, 2001). Horne et al. (1992, Fig. 1) detailed a large number of...faults and shear zones in Nova Scotia and southern New Brunswick that appear to be geometrically, if not |  | | Journal (volume) | | 19 Zircon 19 Petrogenesis References ii Ilomba Hill from the Songwe Plain to the north-west 3 Photomicrograph...15 5 Radiometric map of the summit area, Ilomba Hill 16 TABLES 1 2 3 4 5 6 7 Geological history of...out intermittently over the past 23 years. Ilomba Hill is noteworthy for its uranium-rich pyrochlore, and...pyrochlore deposits of south-eastern Africa. Ilomba Hill lies in the extreme north-western corner of Malawi...Deans to contain pyrochlore, near the summit of the hill and, the following year, carried out a detailed |  | | Journal (article/letter/editorial) | | apatite with up to 8-8 per cent MnO; heterosite (new analysis) and other manganese-iron phosphates ; and...some of these minor minerals are recorded here with new chemical analyses of several phosphates. Related...pegmatites (Gallagher and Hawkes, 1966) and with a new uranium mineral, meta-ankoleite (Gallagher and Atkin...Dark green apatite with ~o 1.647 found in six perthite-rich pegmatites from the Miami district of Rhodesia...Manganese-iron phosphates. A new analysis of heterosite from an albite-perthite pegmatite in Rhodesia is |  | | Journal (article/letter/editorial) | | Lettsom's work of 1858--will pave the way for a new A - Z compilation of British minerals. We simply...the way ahead will be clear for the writing of a new British Mineralogy--something that is more possible...Mineralogy. New York and London. [Dana 6th edn.] Dana, J. D. (1850, 1868) The System of Mineralogy. New York...1978. - - a n d Fuller, J. P. (1980) A Manual of New Mineral Names 1892-1978. London: BM(NH) and Oxford...(1944, 1951) Dana's System of Mineralogy, 1, 2. New York: John Wiley and Sons. [Dana 7th edn.] Robson |  | | Book | | CHAPTER 1 Gem Hunting In The Appalachians CHAPTER 2 New Jersey ........... _ . _ 1 _ CHAPTER 3 Pennsylvania___...states each year give collectors a chance to buy new finds, see f i n e workmanship, a n d s h o w t h...well known old localities are not all “has beens;” new hobbyists and experienced collectors alike prove...dollars at the noted locality of Cowee Valley, Macon County, North Carolina. An enthusiastic family found and...visited the well known old Rutherford mine in Amelia County, Virginia, and found bright spessartine garnets |  | | Journal (article/letter/editorial) | | 166 p r o b a b l y active at some stage. In perthite-rich rocks, the orthopyroxene is interstitial...respectively, of Zr, Y and Nb. In contrast, certain perthite-rich (infracrustal) hypersthene granulites display...(5), andesite; (6), Fiji (low-K) rhyodacite; (7), New Zealand quartz-keratophyre; (8), monzonite; (9),...suites marked by a deficiency of K, the group of perthite-rich granulites represents a later intrusive event...,, Adirondacks,N.Y., USA Wheeler Basin, 1094 - 1200 1450 + 20 Radium Hill, S Australia Duobblon |  | | Report (edition) | | {s the \Vholesale Agent to the Trade outside the County of London. 191 '7. Price Is. Net. J MEMOIRS...ia the Wholesale Agent to the Trade outside the County of London. 1917. Price ls. Net. 11 PREFACE...and 15 ,, IV.-PnosJ.>IIATE OF LIME (contd.) :-Red and Coralline Crags; Chalk ; Chloritic Marl ; Gault;...the valley-bottoms, but few streams descend the hill-slopes near the pegrnatites. There is little or...(Fig. 2). At one place, A, nea, r the end of the new peat-road, in a breadth of 100 yards of pegmatite |  | | Report (issue) | | PART OF THE BLACK ISLE NEAR FORTROSE BY JOHN HORNE, LL.D., F.R.S. WITH CONTRIBU1'IONS RY . B. N. PEACH...and west halves of the ma.p , was surveyed by Dr. Horne, who_ has furnishe.d the description of his ow11...them have been incorporated in the memoir by Dr. Horne and appear over their initials in the text. The...north (published in 1889) h�s been added by Dr. Horne because that area is of considerable geological...investigated the rocks and fossils of that district. Dr. Horne has devoted ·special attention to the -history of |  | | Report (issue) | | Dr. P. A. Sabine. The identification of the Old Red Sandstone fish remains was carried out by Dr. R....of the area were taken by the late W. Fisher. The new chemical rock analyses quoted in this memoir are...Group, 15; Green Beds Assemblage, 18; Oothister Hill Magnetite and Skarn, 20; Western Unclassed Rocks...and Crush Belts, 70. Reference, 71. 64 7 . OLD RED SANDSTONE: SANDNESS FORMATION . . Introduction, 72...Environment ofDeposition, 100. References, 100. 8 . OLD RED SANDSTONE: WALLS FORMATION Introduction, 102. Lithology |  | | Report (issue) | | t------------------------------------Australia, New Zealand, and Antarctica __________ _ Australia ____...n Territory ___ -----------------Queensland and New South Wales _______ _ South Australia ____ -----...------_ Western Australia ___ ------------------New Zealand ______ -----------------------South Isla...Perce Counties __________ _ Idaho CountY-----------------Valley CountY-----------------Adams, Payette,...and Gem Counties ________________________ _ Boise County ___ --------------Ada, Owyhee, Elmore, and Custer |  | | Report (edition) | | laccolith of trachytic rocks intruded into the Upper Old Red Sandstone in Carboniferous times. Plate I (Frontispiece)...greywackes and shales capped by red sandstones and breccias of the Upper Old Red Sandstone. The older rocks...headland dipping very steeply towards the camera. The red sandstones rest on a highly irregular surface of...the chapters dealing with the Lower Palaeozoic, New Red Sandstone, Tertiary and the economic geology and...compiled the whole account. The chapter on the Old Red Sandstone has been prepared by Mr W. Tulloch, those |  | Keppie, J.D., Dallmeyer, R.D., Krogh, T.E., Aftalion, M. (1993) Dating mineralization using several isotopic methods: an example from the South Mountain Batholith, Nova Scotia, Canada. Chemical Geology, 103 (1) 251-270 doi:10.1016/0009-2541(93)90305-3 | Journal (article/letter/editorial) | | Geology, University of Georgia, Athens, GA 30602, USA CRoyal Ontario, Museum, 100 Queen's Park, Toronto...isotopes in an attempt to resolve this dilemma. New geochronological data from the Millet Brook area...by ~ (377-373) + 6 Ma (4°Ar/3gAr plateau ages). New data from Westfield indicate that a paraintrusive... K E P P I E E T AL. UNIT ,300 AGE 250 I I NEW ROSS - I I I I I (Me) I I ,oo # 380 I 187Sr...Summary of 1970-1990 geochronological data from the New Ross and Westfield areas. Pre- 1970 geochronological |
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