 | Zaitsev, A.N., Marks, M.A.W., Wenzel, T., Spratt, J., Sharygin, V.V., Strekopytov, S., Markl, G. (2012) Mineralogy, geochemistry and petrology of the phonolitic to nephelinitic Sadiman volcano, Crater Highlands, Tanzania. Lithos, 152. 66-83 doi:10.1016/j.lithos.2012.03.001 | Journal (article/letter/editorial) | | the phonolitic to nephelinitic Sadiman volcano, Crater Highlands, Tanzania A.N. Zaitsev a, b,⁎, M.A.W. Marks...Nephelinite Phonolite Mineral composition Melt inclusions Mineral stability fields Sadiman volcano a b s t...t r a c t Sadiman volcano is located in the Crater Highlands area of northern Tanzania, which lies next...and nephelinitic lava flows. Rare xenoliths of phonolite lava and ijolite were observed within the nephelinite...the latter of which is the dominant variety at Sadiman. Nepheline + clinopyroxene + titanite ± perovskite |  | | Journal (article/letter/editorial) | | lavas at early stage of rift initiation (Hanang volcano, North Tanzanian Divergence) Céline Baudouin1 ·...Lengai and Kerimasi volcanoes. Hanang volcano is the southernmost volcano in the North Tanzanian Divergence...the earliest stage of rift initiation. Hanang volcano erupted silica-undersaturated alkaline lavas with...Engineering, University of Dar Es Salaam, Dar Es Salaam, Tanzania open system with carbonate–silicate immiscibility...Liquid immiscibility · Rift initiation · Hanang · Tanzania · East African Rift Introduction The East African |  | | Journal (article/letter/editorial) | | forsterite–phlogopite ijolites at Oldoinyo Lengai Volcano, Tanzania: study of melt inclusions V.S. Sekisova a...minerals of ijolite xenoliths at Oldoinyo Lengai Volcano. Melt inclusions with different phase compositions...the Gulf of Aden through Ethiopia, Kenya, and Tanzania, is divided into two large tectonic zones: Western...example, Oldoinyo Lengai, which is located in Tanzania, ~16 km south of Lake Natron, near the Crater...Crater Highlands. The carbonatite rocks of this volcano are extremely enriched in alkaline elements (Na and |  | | Journal (article/letter/editorial) | | Formation tuffs of the Rukwa Rift Basin, southwestern Tanzania L. Lawrence, C. Spandler, E.M. Roberts, H.L....Formation tuffs of the Rukwa Rift Basin, southwestern Tanzania, LITHOS (2020), https://doi.org/10.1016/j.lithos...occurring ~400 km beneath Ethiopia, Kenya and Tanzania, defined as the African superswell (Nyblade, 2011)...the Usangu Basin and Tukuyu Journal Pre-proof region of the Rungwe Volcanic Province (RVP) (Fig. 1b)...vent or source of appropriate age is known in the region for the NFT, which presents a further challenge |  | Sharygin, Victor V., Kamenetsky, Vadim S., Zaitsev, Anatoly N., Kamenetsky, Maya B. (2012) Silicate–natrocarbonatite liquid immiscibility in 1917 eruption combeite–wollastonite nephelinite, Oldoinyo Lengai Volcano, Tanzania: Melt inclusion study. Lithos, 152. 23-39 doi:10.1016/j.lithos.2012.01.021 | Journal (article/letter/editorial) | | combeite–wollastonite nephelinite, Oldoinyo Lengai Volcano, Tanzania: Melt inclusion study Victor V. Sharygin a...Introduction Oldoinyo Lengai is the only active volcano on the Earth erupting natrocarbonatite lava. This...evolution of Oldoinyo Lengai: olivine melilitite, phonolite, nephelinite and natrocarbonatite (Donaldson et...major structural units: Lengai I — phonolite tuffs and phonolite lavas; Lengai II A — nephelinite tuffs...southern crater that formed the major bulk of the volcano (Lengai I), whereas nephelinites of Lengai II characterize |  | Sharygin, Victor V., Pekov, Igor V., Zubkova, Natalia V., Khomyakov, Alexander P., Stoppa, Francesco, Pushcharovsky, Dmitry Yu. (2013) Umbrianite, K7Na2Ca2[Al3Si10O29]F2Cl2, a new mineral species from melilitolite of the Pian di Celle volcano, Umbria, Italy. European Journal of Mineralogy, 25 (4) 655-669 doi:10.1127/0935-1221/2013/0025-2306 | Journal (article/letter/editorial) | | species from melilitolite of the Pian di Celle volcano, Umbria, Italy VICTOR V. SHARYGIN1,*, IGOR V. PEKOV2...groundmass mineral in melilitolite of the Pian di Celle volcano, Umbria, Italy. It forms rectangular, lamellar...structure, melilitolite, kamafugite, Pian di Celle volcano, Italy. 1. Introduction Institute of Geology...for Umbria, the region of Central Italy where its type locality, the Pian di Celle volcano, is situated...background content of H2O (0.03 The Pian di Celle volcano is a part of a Pleistocene kamafugite-carbonatite |  | | Journal (article/letter/editorial) | | Si-K-rich phonolite from Laacher See (Germany) and (2) nosean-nepheline-bearing Si-poor phonolite from Saghro...of haüyne-bearing Si-K-rich phonolite and nosean-bearing Si-poor phonolite in intracontinental setting...setting. Keywords: Phonolite, sodalite, haüyne, nosean, volatile elements, pre-eruptive conditions Introduction...compositions from tephrite to phonolite, but are predominantly present in phonolite (review in Parat et al....phonolites, we identified two groups: (1) Si-rich phonolite with haüyne (Wörner and Schmincke 1984a; Holm |  | Braunger, S, Marks, M A W, Walter, B F, Neubauer, R, Reich, R, Wenzel, T, Parsapoor, A, Markl, G (2018) The Petrology of the Kaiserstuhl Volcanic Complex, SW Germany: The Importance of Metasomatized and Oxidized Lithospheric Mantle for Carbonatite Generation. Journal of Petrology, 59 (9) 1731-1762 doi:10.1093/petrology/egy078 | Journal (article/letter/editorial) | | tephrite, phonolitic noseanite, nosean phonolite and tephritic phonolite by fractional crystallization of variable... 2005; Brooker & Kjarsgaard, 2011). The source region for most carbonatites and associated alkaline rocks...1990; 1991). The original size of the Kaiserstuhl volcano during its active period is difficult to reconstruct...samples from the Limberg-Lützelberg complex and the phonolite quarries at Kirchberg and Fohberg (NW of Bötzingen)...mesocratic tephritic phonolites and a melanocratic phonolite, which are mineralogically very similar to the |  | | Journal (article/letter/editorial) | | wollastonite and silicate magmas of Oldoinyo Lengai (Tanzania). Trace PT element partitioning of isovalent...undersaturated melt-carbonatite suites. AC We thank the Tanzania commission for science and technology (COSTECH)...of ijolite xenolith 10TL01 from Oldoinyo Lengai volcano. Abbreviations: Wo, wollastonite; Cpx, clinopyroxene;...nephelinite–natrocarbonatite relationships at Oldoinyo Lengai, Tanzania. Journal of Petrology, 39(11-12), 2077-2094. ... (1992). 1966 ash eruption of the carbonatite volcano Oldoinyo Lengai: mineralogy of lapilli and mixing |  | | Book | | fossil vertebrates in tuffs of the spectacular volcano that I had mapped in 19909. Thereafter, from 1959...OLpuvaAiI GoRGE AND LAETOLIL, GREGORY RIFT VALLEY TANZANIA; OLORGESAILIE, KENYA I51 10. MARY D, LEAKEY...WHITE. Fossil hominids from the Laetolil Beds, Tanzania 157 ROBERT M. SHACKLETON. Geological Map of...artifacts from the Kapthurin Formation, Baringo District, Kenya 337 361 C. Tue Laxe TurKANA (RupoLpH)...It contains unique fossil localities in the Afar region of northern Ethiopia and the Omo valley in the |  | | Journal (volume) | | of Szeged On the cover: Map of the Carpathian region with type localities of new mineral species, rocks...History of mineralogy: The role of the Carpathian region in the 18th century..............................beneath Eyjafjallajökull volcano, and corresponding inflation of the volcano, a lateral eruption started...evolved FeTi-basalts of the neighbouring Katla volcano (MgO: 4.5-5.0%). During the historical period Katla...basalt (similar in composition to those of Katla volcano) and a dacitic melt, possibly left-over from the |
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