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Journal Article
Published: 01 January 2001
European Journal of Mineralogy (2001) 13 (1): 121–125.
...Luca BINDI; Paola BONAZZI; J. Godfrey FITTON Abstract The crystal structure and chemical composition of two crystals (labelled ET1 and ET2) of strontian soda melilite from Mt. Etinde, Cameroon, are investigated. Quantitative analysis leads to the following formulae: (Ca 0.84 Sr 0.45 Na 0.71 )(Mg...
FIGURES
Journal Article
Published: 01 May 1953
Geological Magazine (1953) 90 (3): 145–151.
...C. E. Tilley Abstract Re-examination of nephelinite from Little Mount Cameroon (Etinde) has shown that the feldspathoid mineral is actually nepheline and not orthorhombic KAlSiO 4 as has been occasionally suggested. Chemical data are given, and a comparison is made with nepheline contained...
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Selected interatomic distances (Å) and angles (°) for strontian melilite f...
Published: 01 January 2001
Table 4. Selected interatomic distances (Å) and angles (°) for strontian melilite from Mt. Etinde
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Chemical composition (means and ranges of oxide contents in wt%) and unit f...
Published: 01 January 2001
Table 3. Chemical composition (means and ranges of oxide contents in wt%) and unit formulae (on the basis of five cations) for strontian melilite from Mt. Etinde
Journal Article
Published: 01 January 2024
Jour. Geol. Soc. India (2024) 100 (1): 99–114.
... aspects. The study area is located in the north-eastern part of the Gulf of Guinea (3°59"-4°04" N and 9°01"-9°13" E). It is bordered to the south by the Atlantic Ocean and to the north and north-east by Mount Etindé and Mount Cameroon ( Fig. 1 ). The climate is tropical and humid with two distinct...
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Journal Article
Published: 01 August 2011
The Canadian Mineralogist (2011) 49 (4): 983–1000.
... from Figure 5 . The Sr contents are generally low, and slightly increase with a decrease in Ca and Mg, just like the melilite of the Alban Hills lavas, but never reaching the high Sr contents of these latter (up to 4.5 wt.% SrO; cf. Melluso et al. 2010a ), nor of Mt. Etinde melilite, Cameroon (up...
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Journal Article
Published: 01 February 2010
The Canadian Mineralogist (2010) 48 (1): 205–229.
.... 1990 ), Nyiragongo, in the Democratic Republic of Congo ( Sahama 1976 ), Oldoynio Lengai, in Tanzania ( Donaldson & Dawson 1978 ), Mt. Vulture, in Italy ( Melluso et al. 1996 ) and Mt. Etinde, in Cameroon ( Nkoumbou et al. 1995 ). Therefore, the presence of nepheline syenites, which plot...
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Journal Article
Published: 01 January 2019
American Mineralogist (2019) 104 (1): 2–16.
... the weathering of nephelinitic rocks under humid tropical conditions at Mt Etinde, Cameroon . Geoderma , 154 ( 1-2 ), 59 – 68 . Etame , J. , Suh , C.E. , Gerard , M. , and Bilong , P. ( 2012 ) Phillipsite formation in nephelinitic rocks in response to hydrothermal alteration at Mount...
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Journal Article
Published: 01 June 2009
Mineralogical Magazine (2009) 73 (3): 373–384.
...-ray single-crystal study . Physics and Chemistry of Minerals , 32 , 89 – 96 . Bindi , L. , Bonazzi , P. and Fitton , J.G. ( 2001 ) Crystal chemistry of strontian soda melilite from nephelinite lava of Mt. Etinde, Cameroon . European Journal of Mineralogy , 13 , 121 – 125...
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Journal Article
Published: 01 October 2007
American Mineralogist (2007) 92 (10): 1685–1694.
... chemistry of strontian melilite from nephelinite lava of Mt. Etinde, Cameroon . European Journal of Mineralogy , 13 , 121 – 125 . Bindi , L. , Rees , R.H. , and Bonazzi , P. ( 2003 ) Twinning in natural melilite simulating a fivefold superstructure . Acta Crystallographica , B59...
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Journal Article
Published: 01 November 2000
European Journal of Mineralogy (2000) 12 (6): 1093–1107.
.... ( 1990 ): 1. Etude géologique des Monts Rumpi: un ensemble plutonique et volcanique de la «Ligne du Cameroun». 2. Données pétrologiques sur les néphélinites du Mont Etinde (Cameroun) . Thèse de ľUniversité de Nancy , Nancy, France (in French). Nowak , M. & Behrens , H...
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Journal Article
Published: 01 May 2001
The Journal of Geology (2001) 109 (3): 349–362.
... of the crests of continental volcano-capped swells more difficult than locating swell centers offshore. Cameroon Mountain with Etinde is here considered to occupy one swell, Manengouba a second, Bamboutu a third, and Oku, which is at lat 7°N, long 11.5°E, a fourth ( fig. 2 ). Outcrops of Cretaceous sedimentary...
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Journal Article
Published: 13 July 2022
Mineralogical Magazine (2022) 86 (5): 777–791.
... of Mt . Etinde, Cameroon. European Journal of Mineralogy , 13 , 121 – 125 . Bouhifd M.A. , Gruener G. , Mysen B.O. and Richet P. ( 2002 ) Premelting and calcium mobility in gehlenite (Ca 2 Al 2 SiO 7 ) and pseudowollastonite (CaSiO 3 ) . Physics and Chemistry...
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Journal Article
Published: 01 August 2013
Clays and Clay Minerals (2013) 61 (4): 303–318.
.... Gerard M. Suh C.E. Bilong P. ( 2009 ) Halloysite neoformation during the weathering of nephelinitic rocks under humid tropical conditions at Mt Etinde, Cameroon . Geoderma , 154 , 59 – 68 . Fiore S. Huertas F.J. Huertas F. Linares J. ( 2001 ) Mechanism of smectite...
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Journal Article
Published: 01 June 2010
Mineralogical Magazine (2010) 74 (3): 415–432.
.... and Ross , M. ( 2004 ) Kiglapait mineralogy IV: The augite series . American Mineralogist , 89 , 1380 – 1395 . Nkoumbou , C. , Déruelle , B. and Velde , D. ( 1995 ) Petrology of the Mt Etinde nephelinite series . Journal of Petrology , 36 , 373 – 395 . Norris , G...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 07 February 2022
Lithosphere (2022) 2022 (1): 5596233.
...-34548831659 Hedberg J. D. . A geological analysis of the Cameroon trend , 1968 , Princeton University Nkoumbou C. Déruelle B. Velde D. Petrology of Mt Etinde nephelinite series Journal of Petrology 1995 36 2 373 395 10.1093/petrology/36.2.373 2-s2.0-0028792886...
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Journal Article
Published: 01 August 2003
American Mineralogist (2003) 88 (8-9): 1287–1299.
.... and Hughes, D.J. ( 1981 ) Strontian melilite in a nephelinite lava from Etinde, Cameroon. Mineralogical Magazine , 44 , 261 –264. Foit, F.F., Hooper, R.L., and Rosenberg, P.E. ( 1987 ) An unusual pyroxene, melilite, and iron oxide mineral assemblage in a coal-fire buchite from Buffalo, Wyoming...
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Journal Article
Published: 01 July 2005
European Journal of Mineralogy (2005) 17 (4): 515–535.
.... , Deruelle , B. , Velde , D. ( 1995 ): Petrology of Mt Etinde nephelinite series . J. Petrol ., 36 , 373 – 395 . Nockolds , S.R. & Zies , E.G. ( 1933 ): On a new barium plagioclase feldspar . Mineral. Mag ., 23 , 448 – 457 . Novak , F. & Hoffman , V...
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Journal Article
Published: 01 October 2016
Clays and Clay Minerals (2016) 64 (5): 639–667.
... ) Halloysite neoformation during the weathering of nephelinitic rocks under humid tropical conditions at Mt Etinde, Cameroon . Geoderma , 154 , 59 – 68 . Fisher G.B. Ryan P.C. ( 2006 ) The smectite to disordered kaolinite transition in a tropical soil chronosequence, Pacific Coast, Costa...
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Journal Article
Published: 01 August 2008
Mineralogical Magazine (2008) 72 (4): 839–876.
..., Dronning Maud Land and the Allan Hills, Victoria Land, Antarctica . Annals of Glaciology , 7 , 34 – 41 . Nkoumbou , C. , Déruelle , B. , and Velde , D. ( 1995 ) Petrology of Mt Etinde nephelinite series . Journal of Petrology , 36 , 373 – 395 . Olsen , E. and Fuchs...
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