 | | Report (chapter) | | syenite are also present, notably on the E side of Chikala and along the SE margin of Mongolowe. All four...annular form, particularly in Chikala at the E end of the chain. Chikala was mapped by Garson (1960) and...iii! :: i :: ~ t , ', A / t / " , t,~ , / k a Ke Chilwa ~ ~ I / ( f t; z Chilwa ~ " ) Island..."'75-';-/" ~#"J t # I / / [ 0 5 miles O ~ - ~ k m j / FIG. 1. The northern part of the Chilwa alkaline...in-faulted masses up to a kilometre across in Chikala and Chaone. Junguni is an isolated intrusion of |  | | Journal (article/letter/editorial) | | members of the chevkinite group are reviewed briefly. K EY WORDS : chevkinite, perrierite, compositional variation...0.03 0.47 12.47 21.73 2.01 7.00 P22 (1) (L) Chikala complex Malawi TABLE 1. New chemical analyses...grains, 20 60 mm across, associated with amphibole. Chikala is one of four overlapping nepheline syenite-syenite...Chilwa Alkaline province. The presence of c/p at Chikala was established by Woolley and Platt (1986) but...collected near Tanthauko village, on the NE side of Chikala (YU 721 283). The analysed mineral is a deep-red |  | | Report (volume) | | Geological Society Special Publications Series Editor K. C 0 E GEOLOGICAL SOCIETY SPECIAL PUBLICATION ...Introduction: FITTON, J. G. & UPTON, B. G . J . BAILEY, D. K. Mantle metasomatism--perspective and prospect vii...Springer-Verlag, Berlin. LARSEN,L. M., REX,D. C. & SECHER,K. 1983. The age of carbonatites, kimberlites and lamprophyres...Springer-Verlag, Berlin. LARSEN,L. M., REX,D. C. & SECHER,K. 1983. The age of carbonatites, kimberlites and lamprophyres... Mantle metasomatism perspective and prospect D. K. Bailey S U M M A R Y : Mantle replenishment in lithophile |  | MacDonald, Ray, Nejbert, Krzysztof, Bagiński, Bogusław, Jurewicz, Edyta (2018) Ti–Zr–Nb-bearing accessory minerals in high-K trachyandesitic rocks from the Western Outer Carpathians, Moravia, Czech Republic. European Journal of Mineralogy, 30 (1) 135-147 doi:10.1127/ejm/2017/0029-2693 | Journal (article/letter/editorial) | | 2017 Ti–Zr–Nb-bearing accessory minerals in high-K trachyandesitic rocks from the Western Outer Carpathians...and Nb-rich ilmenite is reported in Miocene high-K trachyandesites from the Uhersk y Brod area, Czech...chevkinite group; zirconolite; Nb-rich ilmenite; Miocene K-rich trachyandesites; Moravia. rocks are located...Outer Carpathians. Their age has been estimated from K–Ar determinations at 14.8 ± 0.2 to 11.0 ± 1.2 Ma (Přichystal...(Le Maitre, 2002), the Moravian rocks are a high-K suite of basalts, trachybasalts, trachyandesites, |  | Broom-Fendley, Sam, Brady, Aoife E., Wall, Frances, Gunn, Gus, Dawes, William (2017) REE minerals at the Songwe Hill carbonatite, Malawi: HREE-enrichment in late-stage apatite. Ore Geology Reviews, 81. 23-41 doi:10.1016/j.oregeorev.2016.10.019 | Journal (article/letter/editorial) | | anhedral grains, in association with altered K-feldspar and minor zircon. Under CL Ap-0 luminesces purple–mauve...and B Junguni Mongolowe, Chaone, Chinduzi & Chikala Kangankunde Chilwa Island F Mozambique Michese...Abbreviations: Cal, calcite; py, pyrite; zr, zircon; Kfsp, K feldspar; syn, synchysite-(Ce) str, strontianite; hm,...zircon, minor pyrochlore and fragmented laths of K-feldspar. Ap-1 and Ap-2 are compositionally similar; REE...galena), anhedral calcite, ankerite and fragmented K-feldspar. Ap-3 is texturally complex, but has a similar |  | | Book (edition) | | been discovered around the world: in Australia, India, Pakistan, Quebec, Finland, Guyana, Venezuela, Brazil...my sincere thanks: R. J. Anderson, A. Arribas, D. K. Bailey, J. W. Barnes, H. Bjorlykke, C. Bursill, E...A. Key, E. H. Kranck, A. A. Levinson, C. Milton, K. J. Murata, A. P. Nason, H. Nel, O. Odman, J. C....A. Salotti, J. R. Shappirio, R. N. Sukheswala, A. K. Vil Vill PREEAGE, Temple, G. R. Udas, B. G...Norway, Sweden, Uganda, Tanganyika, Nyasaland, and India. This, like most monographs, is a dehydrated compendium |  | | Book | | and therefore free for general use. lYpesetting: K +V Fotosatz, Beerfelden 2132/3145-543210 - Printed...intracontinental East-African rift. The genesis of the K- and LILE- enriched ultra-alkaline volcanism of the...(France), P. BOWDEN (0. K.), W. L. BROWN (France), C. COULON (France), K. G. Cox (0. K.), A. CUNDARI (Australia)...J. B. DAWSON (0. K.), J. DOSTAL (Canada), R. F. EMSLIE (Canada), J. G. FITTON (0. K.), M. GIROD (France)...(0. K.), 1. KORNPROBST (France), 1. D. KRAMERS (Zimbabwe), M. J. LE BAS (0. K.), F. E. LLOYD (0. K.), |  | | Book | | & BOYD Tweeddale Court Edinburgh EH1 1YL (A Division of Longman Group Ltd) ISBN 0 05 001709 8 First...OROGENIC AND POST-OROGENIC PLUTONISM IN Marawi 119 K. Bloomfield MINERALOGICAL AND GEOCHEMICAL ASPECTS...BEARING ON THE POSTULATED FRAGMENTATION OF GONDWANALAND K.-G. Cox 11 211 PETROCHEMICAL AND TECTONIC RELATIONSHIP...Rue Kessler, Clermont-Ferrand, France. BLOOMHELD, K., Geological Survey and Mines Department, P.O. Box...Sciences, University of Leeds, Leeds, U.K. Cox, K. G., Grant Institute of Geology, Kings Buildings, |  | | Report (volume) | | can be written as A B2 C5 T8 O22 W2 where A = Na, K, ˚, Ca, Li; B = Na, Li, Ca, Mn2+, Fe2+, Mg; C = Mg...Ca Na ΣB 0.147 1.853 2.000 0.145 1.855 2.000 Na K ΣA 0.716 0.293 1.009 0.702 0.289 0.991 OH F Σ ...A = (Na,K,Ca); [3]-coordinated: O(3) = (OH), A = ˚; [4]-coordinated: O(3) = (OH), A = (Na,K,Ca). The...charge and size: Li, Mg, Fe2+, Mn2+, Ca, Na (and even K and Sr in various synthetic amphiboles), and the ... The A cavity may be occupied by monovalent (Na, K, Li) or divalent (Ca, Pb2+) cations, and the siting |
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