| | Journal (article/letter/editorial) | com/locate/lithos Peralkaline syenite autoliths from Kilombe volcano, Kenya Rift Valley: Evidence for subvolcanic interaction...and geochemistry of syenite autoliths from Kilombe volcano indicate that they crystallized in the upper...aegirineāaugite, Caāaegirine and/or aegirine, (ii) fayalite by amphiboles, and (iii) magnetite by aenigmatite...minerals, have been found for the first time at Kilombe together with eudialyte, nacareniobsiteā(Ce) and...occurrences in Kenya. Ā© 2006 Elsevier B.V. All rights reserved. Keywords: Syenite; Carbonatite; Kilombe; Kenya | | | Journal (article/letter/editorial) | elsevier.com/locate/lithos The volcanoāpluton interface; The Longonot (Kenya) and KĆ»ngnĆ¢t (Greenland) peralkaline...Available online 18 March 2014 Keywords: Longonot volcano KĆ»ngnĆ¢t syenite complex Evolution of complementary...magma reservoir(s). The trachytic caldera volcano Longonot (Kenya Rift Valley) and the KĆ»ngnĆ¢t syenite complex...Kelleher and Cameron, 1990) and the Olkaria complex, Kenya (Macdonald et al., 2008; Marshall et al., 2009)...which can be considered to be a complementary volcanoāpluton pair. Although the histories of the two | | | Report (chapter) | peralkaline silicic rocks and caldera volcanoes of Kenya R. Macdonald Geological Society, London, Special...of Kenya R. Macdonald S U M M A R Y: The late-Quaternary trachytic caldera volcanoes of the Kenya rift...plutonic processes while the volcano is at the magmatic stage. In Kenya the late-Quaternary caldera volcanoes...on the seven centres of the inner trough of the Kenya rift (Fig. 1) but, where relevant, information from...Naivasha complexes, the Kilombe volcano and the area of the sourthern part of the Kenya rift (SKR) studied | | | Journal (article/letter/editorial) | peralkaline trachyte and phonolite from the Suswa volcano, Kenya rift John Charles White a,ā, Vanessa V. Espejel-GarcĆa...Tower, Upper Hill, P.O. Box 10076ā00101, Nairobi, Kenya a r t i c l e i n f o Article history: Received...February 2012 Keywords: Trachyte Phonolite Central Kenya Peralkaline Province a b s t r a c t Suswa is the...the southernmost volcanic center in the Central Kenya Peralkaline Province (CKPP) and represents the only...lavas and tuffs that built the initial shield volcano (pre-caldera, unit S1) and erupted during the ļ¬rst | | | Journal (article/letter/editorial) | ā¦ 0 ā¦ 0 ā¦ 0 ā¦ 0 ā¦ 7 of 21 Azores, Kilombe, Kenya Portugal 0 112 55 47ā 112 55 41āand112 57...06 0.12 0.12 0.08 0.09 0.05 0.01 0.09 0.24 0.22 Kilombe, Azores, MgO 0.14 0.28 0.27 0.17 0.32 0.10 0.21...86 0.69 0.73 0.62 0.77 0.17 0.11 0.52 0.59 1.10 Kenya Portugal Na2 O Lat.(N) 5.99 23Ā°8ā²43ā²ā² 5.89 5.94...44compositions 0.51 of host 0.36 0.31 0.64 of Kilombe 0.62 The whole-rock rocks are0.42 from [41], Syenitic...fromanomalies [41], Syenitic(Ce/Ce* enclaves of= Kilombe are Eu anomalies (Eu/Eu* = 0.16ā0.21)ofand 0.37ā1 | | | Journal (article/letter/editorial) | Isle, Guinea (Parodi & Chevrier 2004), and Kilombe volcano, Kenya (Ridolfi et al. 2006). More recently, it...buffer conditions, and up to 535 Ā°C under FQM (fayalite-quartz-magnetite) buffer crystallization conditions...(2006) Peralkaline syenite autoliths from Kilombe volcano, Kenya Rift Valley: Evidence for subvolcanic interaction...Stolz, A.J. (1986) Mineralogy of the Nandewar Volcano, Northeastern New South Wales, Australia. Mineralogical | | Brenna, Marco, Pontesilli, Alessio, Mollo, Silvio, Masotta, Matteo, Cronin, Shane J., Smith, Ian E.M., Moufti, Mohammed Rashad Hassan, Scarlato, Piergiorgio (2019) Intra-eruptive trachyte-phonolite transition: Natural evidence and experimental constraints on the role of crystal mushes. American Mineralogist, 104 (12) 1750-1764 doi:10.2138/am-2019-6963 | Journal (article/letter/editorial) | Laacher See volcano (Germany; Harms et al. 2004), as well as caldera systems at Suswa volcano (White et...eruption along a wadi on the western side of the volcano. The crater rim (dashed) is well as in magmatic...2012; Brenna et al. 2014). At Al Shaatha, the volcano formed through a single eruptive sequence displaying...However, iddingsitization of fayalite in the trachyte and absence of fayalite in the phonolite likely indicate...zoned phonolitic magma chamber of the Laacher See volcano. Contributions to Mineralogy and Petrology, 140(4) | | Liu, Shen, Feng, Caixia, Hu, Ruizhong, Gao, Shan, Wang, Tao, Feng, Guangying, Qi, Youqiang, Coulson, Ian M., Lai, Shaocong (2013) Zircon U-Pb age, geochemical, and Sr-Nd-Pb isotopic constraints on the origin of alkaline intrusions in eastern Shandong Province, China. Mineralogy and Petrology, 107 (4) 591-608 doi:10.1007/s00710-013-0285-3 | Journal (article/letter/editorial) | (2006) Peralkaline syenite autoliths from Kilombe volcano, Kenya Rift Valley: evidence for subvolcanic interaction...Shellnutt JG, Zhou MF (2008) Permian, rifting related fayalite syenite in the Panxi region, SW China. Lithos | | Lan, Ting-Guang, Fan, Hong-Rui, Santosh, M., Hu, Fang-Fang, Yang, Kui-Feng, Yang, Yue-Heng, Liu, Yongsheng (2011) Geochemistry and SrāNdāPbāHf isotopes of the Mesozoic Dadian alkaline intrusive complex in the Sulu orogenic belt, eastern China: Implications for crustāmantle interaction. Chemical Geology, 285 (1) 97-114 doi:10.1016/j.chemgeo.2011.03.013 | Journal (article/letter/editorial) | complex is located within the Dadian region of Junan county in the Sulu orogenic belt and is exposed over an...Macdonald, R., Scaillet, B., 2006. The central Kenya peralkaline province: insights into the evolution...geochemical and isotopic study of the Gedesma Volcano, Central Ethiopian Rift. Journal of Petrology 44...2006. Peralkaline syenite autoliths from Kilombe volcano, Kenya Rift Valley: evidence for subvolcanic interaction...G., Zhou, M.F., 2008. Permian, rifting related fayalite syenite in the Panxi region, SW China. Lithos | | Melluso, L., Morra, V., Guarino, V., deā Gennaro, R., Franciosi, L., Grifa, C. (2014) The crystallization of shoshonitic to peralkaline trachyphonolitic magmas in a H2OāClāF-rich environment at Ischia (Italy), with implications for the feeder system of the Campania Plain volcanoes. Lithos, 210. 242-259 doi:10.1016/j.lithos.2014.10.002 | Journal (article/letter/editorial) | SommaāVesuvius (Fig. 1). To the east, the Mt. Vulture volcano is located close to Apenninian foredeep and the...reappears in the silica-rich rocks as manganoan fayalite (cf. Macdonald et al., 2012; Ronga et al., 2010;...olivine indicate that the feeding system of a volcano was ļ¬lled by liquids capable of crystallizing both..."Colli Albani" volcano, Roman Magmatic Province. Central Italy: inferences on volcano evolution and magma...cataclysmic caldera collapse eruption at Ischia volcano (Italy). Contributions to Mineralogy and Petrology | | Melluso, Leone, Guarino, Vincenza, Lustrino, Michele, Morra, Vincenzo, de' Gennaro, Roberto (2017) TheREE-and HFSE-bearing phases in the Itatiaia alkaline complex (Brazil) and geochemical evolution of feldspar-rich felsic melts. Mineralogical Magazine, 81 (2) 217-250 doi:10.1180/minmag.2016.080.122 | Journal (article/letter/editorial) | anorthoclase (Al, Si), albite (Na), rutile (Ti), fayalite (Fe), Cr2O3 (Cr), rhodonite (Mn), orthoclase (K)...the magmas. The total lack of aenigmatite and fayalite at Itatiaia hampers attempts to better constrain...(2006) Peralkaline syenite autoliths from Kilombe volcano, Kenya Rift Valley: evidence for subvolcanic interaction...(1998) Equilibria among titanite, hedenbergite, fayalite, quartz, ilmenite, and magnetite: experiments | | | Journal (article/letter/editorial) | under oxygen fugacities ranging from below the fayalite-quartz-magnetite buffer to higher than the Ni-NiO...(2006) Peralkaline syenite autoliths from Kilombe volcano, Kenya Rift Valley: evidence for subvolcanic interaction | | | Report (volume) | 273 BAKER, B. H. Outline of the petroIogy of the Kenya rift alkaline province 293 MACDONALD,R. Quaternary...peralkaline silicic rocks and caldera volcanoes of Kenya 313 WOOLLEY, A. R. & JONES, G. C. The petrochemistry...on the peralkaline silicic central volcanoes of Kenya and also favours an origin by crystal fractionation...pyroclastic deposits around central volcanoes in Kenya often show striking variations in the abundance...on the peralkaline silicic central volcanoes of Kenya and also favours an origin by crystal fractionation |
|