 | | Journal (issue) | | L. Jambor, J. H. G. LaFlamme and D. A. Walker Bytownite —a legacy of early Ottawa, a Montreal medical...Raven Hills Court, Colorado Springs, Colorado 80919 USA; tel: (303) 598-1233 66 The Mineralogical Record...vein-dike near Long Lake in Olden Township, Frontenac County. Tabular pseudo-orthorhombic euhedra up to 10 cm...crystal (1.6 x 2 cm) from Olden Township, Frontenac County, Ontario. George and Susan Robinson specimen. menite...itself is for the type locality near Perth, Lanark County, Ontario.) Huge crystals of microcline up to half |  | | Journal (article/letter/editorial) | | ..... Resume of the geology of middle western Virginia....................................... Distribution...dikes in the Paleozoic sediments of middle western Virginia, west of the Blue Eidge, has been known for many...occurrence of granite-felsophyre in Alleghany County, Virginia, and several dikes of basalt near the State...State line on the north, in Pendleton County, West Virgima. Recent investigations by the writers, assisted...College, Virginia, have resulted in the discovery of numer ous other dikes of diabase in Augusta, Rockbridge |  | | Journal (article/letter/editorial) | | MINERALOGICAL SOCIETY OF AMERICA APRTL, 1936 No.4 MOORE COUNTY. NORTH CAROLINA. METEORITEA NEW EUCRITE E. P. HBNoBnsoN...Graves, Iocated about 3 miles east of Carthage,Moore County, North Carolina,longitude 79" 23'W.,latitude 35o...-r, ri ll , :'d fr.r lrc jrl Frc. 1. Moore County, North Carolina, meteorite. The forward face showing...be present but three minerals: viz., white basic bytownite (near anorthite), yellow pyroxene, and a few...Srnucrunr oF THE MBrBontrB The texture of the Moore County meteorite is best described as uniformly granular |  | | Journal (article/letter/editorial) | | uncertainty is much larger for Ca-rich minerals such as bytownite and anorthite, and reasonsfor the disag"reement...in acid but is not detectableat near-neutraland basic pH conditions (Caseyet al., 1988, 1989). The leaching...Isodynamic Separator,which yses. 5 : PuebloPark bytownite:(NaosKo@Cao60A11$Sireosoo),48 analproduced a nearly...feldspar powder. Final purificayses. 6 : Crystal Bay bytownite: (Naor4GolcaoT6AllT4sirreoooo), 314 analyses.7...be misleading. Specifically, the Pueblo Park bytownite and the Bancroft albite are labradorite and oligoclase |  | | Journal (article/letter/editorial) | | 505 Amphibole, ferri-ferrohornblende, kirwanite, County Down, Northern Ireland, 253; fibres, flexibility...Igaliko Dyke Swarm, South Greenland, 107 Analcime-bytownite intergrowth in basalt, Skye, Scotland, 382 ANDERSEN...and WILLIAMS,P. A., lanthanite group, Sweden and USA, 639 Auger electron spectroscopy (AES), arsenopyrite...R. G., mineralogy of terrestrial planets, 135 Bytownite-analcime intergrowth in basalt, Skye, Scotland...rocks, yimengite in, Venezuela, 305 Kirwanite from County Down, Northern Ireland, 253 Kribergite, unit cell |  | | Catalog/List | | enlarged photograph of a piece of Obsidian, from Lake County, Oregon, which shows a Conchoidal fracture. t...ALBITE (sodium aluminum trisilicate Xline mass; Virginia ............................. . Cleavage, showing...60 .60 2:50 (basic calcium, aluminum, iron and cerium orthosilicate Massive; Virginia or N. Carolina................ ........... 2.00 .60 ALUNITE (basic potassium aluminum sulfate) Massive, pure; Utah...Nevada ................... 1 x 2" .26 1.00 AZURITE (basic copper carbonate) Nodules, with malachite; Arizona |  | | Journal (article/letter/editorial) | | dissolution rates depend on its composition at both basic and acidic conditions. Plagioclase dissolution...acquired from the Smithsonian Institution. One bytownite was collected from an anorthosite intrusion located...origin other than the anorthite and Hrappsey bytownite, which were of igneous origin. 9 The chemical...Al/Si release rates of experiments performed at basic pH. Steady-state rates based on Si release obtained...increasing pH at acid pH and rise with increasing pH at basic pH. At acid conditions, rates increase substantially |  | | Journal (article/letter/editorial) | | FERROMAGNESIAN SILICATES IN ACID (GRANITIC) AND BASIC (GABBROIDIC) MAGMAS We shall commence by mentioning...diopside (or pyroxene in general) and anorthite, bytownite, and labradorite (see above) contains as much...individualization fields Qu:Diops:An, and Qu: dorite or bytownite), on the other hand, plagioclase commences crystallizing...DIFFERENTIATION OF IGNEOUS ROCKS 519 per cent. With more basic plagioclase (andesine) somewhat more of the ferromagnesian...of acid feldspar and quartz, and in basic rocks, containing basic plagioclase, is of great petrologic |  | Stillings, Lisa L., Drever, James I., Brantley, Susan L., Sun, Yanting, Oxburgh, Rachael (1996) rates of feldspar dissolution at pH 3–7 with 0–8 m M oxalic acid. Chemical Geology, 132 (1) 79-89 doi:10.1016/s0009-2541(96)00043-5 | Journal (article/letter/editorial) | | 82071-3006, USA b Department of Geosciences, Penn State, University Park, PA 16802, USA Department of...Sciences, Columbia University, Palisades, NY 10964, USA Received 1 July 1995; accepted 21 December 1995 ...solutions increase dissolution rates of anorthite, bytownite and labradorite by factors of 2-7. In this paper...Mitchell County oligoclase, Ab73An22Ors; Nain Labradorite, AbsoAn43Or7; and Crystal Bay bytownite, Ab24An76Or...albite; olig = oligoclase; and = andesine; byt = bytownite. a + 4 m M HCI. b + 3 m M HCI. c + l m M HCI. |  | | Catalog/List | | 50 .10 1.00 1.00 .50 1.75 3.50 ALLANITE (basic calcium, aluminum, irnn and cerium orthosilicate).... . . . . . . . ALMANDITE-See Garnet ALUNITE (basic potassium aluminum sulfate) Xline, pure; Utah .... . . . . . . . Asbestos Loose fibers in vial; Virginia . . . . . . . . . . . . . . . . . . . . . . ......... .... ... . AUGITE-See Pyroxene AZURITE (basic copper carbonate) Nodules, small; Utah . .. . ....Cobalt, Ontario . . . . . . . . . BROCHANTITE (basic sulfate of copper) .. ..... Xline, masses; Arizona |  | | Journal (article/letter/editorial) | | 760-749, South Korea 2 Isotope Research Team, Korea Basic Science Institute, Taejon 305-333, South Korea Abstract—Quaternary...gravel layers, allophane gel either replaced bytownite sands to form a pseudomorph or coated the pebbles...H2O. The sandy gravels were originally rich in bytownite (av. An86) sands derived from underlying Tertiary...lapilli tuff. The highly soluble and aluminous bytownite favored the formation of allophane. In the sandy...barrier impeding a mineral-water reaction in the bytownite-rich sandy gravel layers and thus significantly |  | | Journal (article/letter/editorial) | | (black and dense), a hornbler~de-plagioclase layered basic intrusions are consistent with a rock with a distinctive...comparisons between the different hornblende, bytownite. (6) Recrystallized rock types should permit real...Silver 1972) also show that the plagioclase is bytownite. According to the Ca/Na criterion (essentially...magma than a basic magma. The sequence is not one which could be produced from a basic magma, from which...within the main anorthosite mass in Roseland, Virginia. Structure The distribution map of plagioclase |  | | Journal (article/letter/editorial) | | an unusual bimodal assemblage of andesine and bytownite–anorthite. Oxygen isotope compositions of the...plagioclase is proposed to explain the origin of bytownite–anorthite in the anorthosite and creation of its...Alamos National Laboratory, Los Alamos, NM 84545, USA e-mail: cmora@lanl.gov L. R. Riciputi Chemistry Division...Alamos National Laboratory, Los Alamos, NM 87545, USA D. R. Cole Chemical Sciences Division, Oak Ridge...Ridge National Laboratory, Oak Ridge, TN 37831-6110, USA K. D. Walker Department of Earth and Planetary Sciences |  | | Report (issue) | | a series of previously little· known basic rocks in Towns County. It includes a review of the minerals...map of the Lake Chatuge area, Towns County, Ga., and Clay County, N.C.. . . .in pocket viii :;:. LIST...banding consisting of alternating olivine and bytownite layers separated by a reaction zone of orthop...the vicinity of Lake Chatuge, Towns County, Georgia and Clay County, North Carolina (Figure 1). A geologic...associated deposits of corundum and asbestos. In Towns County, Ga., King (1894, p. 87-89) described the occurrence |  | | Journal (article/letter/editorial) | | http://www.tandfonline.com/loi/tigr20 Petrology of basic rocks of the Philippine Sea based on deep-sea drilling...this article: Yu. l. Dmitriyev (1980) Petrology of basic rocks of the Philippine Sea based on deep-sea drilling...University] Date: 20 June 2016, At: 22:12 Petrology of basic rocks of the Philippine Sea based on deep-sea drilling...the Scripps Oceanographic Institution (California, USA). Interest in the geology of the Philippine Sea...environment. A petrographic study of the samples of basic rocks from the Philippine Sea has been carried out |  | | Catalog/List | | 65 ALLANITE (basic calcium, aluminum, iron and cerium orthosilicate) Massive; Virginia, or N. Carolina...dolomite or sphalcrite, 1 x 2•, 1.00... 156 ALUNITE (basic potassium aluminum sulfate) ,Wassive, pure; Utah...fluorescent; New Hampshire . . . . . . . 91 AZURITE (Basic copper carbonate) Nodules, with malachite; Arizona...and North Carolina . . . .. . ..33 BISMUTITE (A basic bismuth carbonate} ,\llassi/Je with quartz; New...Quebec .. .... . ..... .......... .. .... . 97 BYTOWNITE (calcium and sodium aluminum silicate) Xline; |  | | Journal (article/letter/editorial) | | comrlocaterchemgeo The temperature dependence of bytownite feldspar dissolution in neutral aqueous solutions...Weeks Hall, 1215 West Dayton St., Madison, WI 53706, USA b College of Marine Studies, UniÕersity of Delaware...Delaware, 700 Pilottown Rd., Lewes, DE 19958, USA Received 19 October 1998; accepted 21 November 1999 Abstract...temperature dependence of silica release from bytownite, a Ca–Al-rich feldspar, was determined in solutions...rights reserved. Keywords: Temperature dependence; Bytownite feldspar dissolution; Ligands 1. Introduction |  | Parnell, J., Armstrong, J., Brolly, C., Boyce, A.J., Heptinstall, E. (2020) Carbon in mineralized ultramafic intrusions, caledonides, northern Britain. Lithos, 374. 105711pp. doi:10.1016/j.lithos.2020.105711 | Journal (article/letter/editorial) | | et al., 1989; Thomas et al., 2007). The Younger Basic intrusions of West Aberdeenshire were emplaced during...(Fletcher et al., 1989; Pankhurst, 1969). The Younger Basic rocks are predominantly mafic and ultramafic cumulates...high content of admixed graphite (see Fig. 3B). Bytownite plagioclase (BY) includes graphite (GR) and pyrrhotite...and biotite (Fig. 3a). Euhedral plagioclase (bytownite) phenocrysts occur up to 20 mm size and preserve...2). Minor albite is also associated with the bytownite. Smaller pyroxene (ortho- and clino-) phenocrysts |  | | Journal (article/letter/editorial) | | nonparallel reflections (e.g., 001 vs 110). The basic premise is that if one set of reflections is intensified...Source Hybla, Ontario Amelia, Virginia Lunar Crater, Nevada Essex County, New York Oregon Sonora, Mexico...gel heated to 1300 °C Hot Springs, Arkansas Crook County, Wyoming Yucca Mountain, Nevada Minerals Research...Albite Albite Oligioclase Andesine Labradorite Bytownite Anorthite Anorthoclase Sanidine Orthoclase Microcline...Amelia Albite Oligoclase Andesine Labradorite Bytownite Anorthite Anorthoclase Sanidine Orthoclase 21 |  | | Journal (article/letter/editorial) | | Downloaded from http://sjg.lyellcollection.org/ at West Virginia University on April 12, 2015 The Insch layered... Downloaded from http://sjg.lyellcollection.org/ at West Virginia University on April 12, 2015 THE INSCH LAYERED... Downloaded from http://sjg.lyellcollection.org/ at West Virginia University on April 12, 2015 10 P. D. CLARKE...diorites by reaction between the acid magma and the basic rock. From the trace element contents, Read and...ultrabasic (olivine- and pyroxene-rich) through basic (olivine-free gabbros) to intermediate (olivine-bearing |  | | Journal (article/letter/editorial) | | Copyright Q 1996 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/96 $15.00 + .OO PII...Studies, University of Delaware, Lewes, DE 19958, USA Abstract-The steady-state dissolution rates of plagioclase...Si/m’/s for albite to 5.6. 10e9 mol Si/m*/s for bytownite. A similar trend was observed for minerals dissolved...the extremes in aluminum fraction (quartz and bytownite). On the basis of the results of the experiments...minerals, such as the Ca,Al-rich plagioclase, bytownite, regulates atmospheric CO2 concentration, and |  | | Journal (article/letter/editorial) | | Copyright 0 1994 ElsevierScienceLtd Printedin the USA. All rights reserved 0016-7037/94 $6.00 + .OO Pergamon...and YAN-TING SUN of Wyoming, Laramie, WY 82070, USA (Received September 15, 1992; accepted in revised...0 are obtained for oligoclase, andesine. and bytownite, respectively. This indicates that the reaction...Lamont-Doherty Earth Observatory. Palisades, NY 10964, USA. 661 662 R. Oxburgh, J. 1. Drever, and Y. Sun...feldspars; an oligoclase, an andesine, and a bytownite. These are interpreted in terms of surface complex |  | | Report (issue) | | Metasomatic metamorphism in western Clearwater County, Idaho. (B) Anorthosite and associated rocks in...batholith near Pierce and Bungalow, Clearwater County, Idaho. (E) Belt series in the region around Snow... Metasomatic Metamorphism in Western Clearwater County Idaho By ANNA HIETANEN METAMORPHIC AND IGNEOUS..._-_ 111 Relation of metasomatic rocks to the basic front____ References- ______-_____-_____--_-__--_-_------_--_-...METASOMATIG METAMORPHISM IN WESTERN GLEARWATER COUNTY, IDAHO BY ANNA HIETANEN ABSTRACT The area studied |  | | Journal (article/letter/editorial) | | plagioclase is represented by labradorite and bytownite with an anorthite component varying from An63...Norite of the neighboring Nud–Poaz massif contains bytownite with an anorthite component varying from An71...massif, layered intrusion, basic rock, plagioclase, labradorite, bytownite DOI: 10.1134/S1075701518080081...Na2O K2O (1–5) bytownite from norite of Nud–Poaz massif; (6–10) labradorite and bytownite from gabbronorite...Vurechuaivench massif; (11–16) labradorite and bytownite from gabbronorite in medium part of Vurechuaivench |  | Gilbert, B., Frazer, B.H., Naab, F., Fournelle, J., Valley, J.W., De Stasio, G. (2003) X-ray absorption spectroscopy of silicates for in situ, sub-micrometer mineral identification. American Mineralogist, 88 (5) 763-769 doi:10.2138/am-2003-5-605 | Journal (article/letter/editorial) | | Microcline no. 2 Albite Sanidine Andesine Adularia Bytownite KAlSi3O8 KAlSi3O8 NaAlSi3O8 K0.75Na0.25AlSi3O8...An10-An44. 2 = Amelia Court House, Virginia. 3 = Amelia Court House, Virginia; has some albite lamelshifted...two speclae (excluded). 4 = Micanite, Freemont County, California; has some albite lamellae (excluded)...in Figure 6. There are only three silicates, bytownite, quartz and zircon, microcline SiK edge (Li et...edge (around 530 eV), varied in larity of the bytownite SiL2,3 spectrum to those of other feldspars, intensity |
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