 | | Journal (article/letter/editorial) | | Evolution of the Nyiragongo Magma by TH. G. SAHAMA Department of Geology, University of Helsinki, Finland...5 June 1972) ABSTRACT INTRODUCTION T H E Lake Kivu volcanics in the Western Rift Valley of Central...the South Kivu basaltic rocks. On the other hand, the Virunga (Birunga) volcanic field north of the lake...Nyamuragira (Nyamlagira) and, especially, Mt. Nyiragongo (Niragongo, Niligongo), including their satellitic...lavas will be called the Nyamuragira area and the Nyiragongo area rocks, respectively. The six eastern extinct |  | Minissale, Silvia, Zanetti, Alberto, Tedesco, Dario, Morra, Vincenzo, Melluso, Leone (2019) The petrology and geochemistry of Nyiragongo lavas of 2002, 2016, 1977 and 2017 AD, and the trace element partitioning between melilitite glass and melilite, nepheline, leucite, clinopyroxene, apatite, olivine and Fe-Ti oxides: a unique scenario. Lithos, 332. 296-311 doi:10.1016/j.lithos.2019.02.023 | Journal (article/letter/editorial) | | com/locate/lithos The petrology and geochemistry of Nyiragongo lavas of 2002, 2016, 1977 and 2017 AD, and the...81100 Caserta, Italy d JOC, UN-MONUSCO, UN-Goma, Congo b a r t i c l e i n f o Article history: Received...2019 Available online xxxx a b s t r a c t The Nyiragongo lava of 2002, and the new one flowing from the...found in the Nyiragongo lavas. These new data indicate that the magmatic system of the Nyiragongo is in a...All rights reserved. 1. Introduction The Nyiragongo volcano belongs to the Virunga Volcanic Province |  | | Journal (article/letter/editorial) | | nepheline (melilite nephelinites) from the Nyiragongo volcano of the Congo and a group rich in olivine (olivine...(the melilite nephelinite of the lava lake of Nyiragongo) through the Cameroons etindite (clinopyroxene...includes a number of lavas of the Nyiragongo Crater area of the Congo and an etindite from the Cameroons...margin (FEAE 83). The lava of the lava lake of Nyiragongo crater carries nepheline phenocrysts with smaller...is 1100°C-for the specimen of the lava lake of Nyiragongo. Sahama and Meyer (1958 p. 15) have recorded |  | | Journal (article/letter/editorial) | | also for lava flows from one extensively sampled volcano. Hypotheses involving simple fractional crystallization...Birunga area at the junction of the Congo, south-west Uganda, and north-west Rwanda (see Fig. 1). The Birunga...Nyamlagira (Nyamuragira) and Nyiragongo in the Virunga province of the Congo. Most of the volcanoes in the...FIELD 2 - TORO-ANKOLE FELO 3 - SOUTH KIVU FIELD CONGO LAKE KIVU LAKE. TANSANYIKA\ INDIAN OCEAN FIG...Birunga field. The volcanic field to the south of Lake Kivu, however, consists largely of olivine and tholeiitic |  | | Journal (article/letter/editorial) | | CONTAMINATION IN THE POTASSIC SUITE OF THE KARISlMBI VOLCANO (VIRUNGA, AFRICAN RIFT VALLEY) M. DE M U L D E...contamination in the potassic suite of the Karisimbi Volcano (Virunga, African Rift Valley). In: S. Deutsch...silica-undersaturated volcanics from the Karisimbi volcano (Virunga region, Western African Rift Valley, Rwanda...MIKENOoO LK I MUHAVURA O O GAHING~/Z o NYIRAGONGO RWANDA LAKE KIVU EAST AFRIC~ -ORO-'A.KOL~-t RU~GA t\...African Rift System. Adjacent Toro-Ankole and South Kivu fields are also shown. 1983; Vollmer and Norry |  | | Journal (article/letter/editorial) | | groundmass of diopside, phlogopite, iron oxide, sanidine and apatite. The extremely high potassic basaltic...perpotassic basaltic rocks were collected from Nyiragongo and Nyamuragira volcanoes located about 300 km...west of Lake Victoria in Africa. The rocks from Nyiragongo are nephelinite, melilitire and leucitite. Phenocrystic...zone and the east side of median valley in the north of Azores Islands, and by drilling at the IPOD/DSDP...in No. 15 1. Olivine bronzite tholeiite, Iwate volcano, N.E. Japan 1 111 0.20 0.08 2. Olivine tholeiite |  | 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) | | petrology of the phonolitic to nephelinitic Sadiman volcano, Crater Highlands, Tanzania A.N. Zaitsev a, b,⁎...Mineral stability fields Sadiman volcano a b s t r a c t Sadiman volcano is located in the Crater Highlands...perovskite ± andradite–schorlomite ± wollastonite ± sanidine ± sodalite are the principle pheno- and microphenocryst...All rights reserved. 1. Introduction Sadiman volcano (3°11′S, 35°25′E), also known as Satiman, is part...as the 1.6–1.5 Ma Oldeani basalt–trachyandesite volcano (Dawson, 2008; Mollel et al., 2008; 2011). ⁎ Corresponding |  | Clague, David A., Frey, Frederick A., Garcia, Michael O., Huang, Shichun, McWilliams, Michael, Beeson, Melvin H. (2016) Compositional heterogeneity of the Sugarloaf melilite nephelinite flow, Honolulu Volcanics, Hawai‘i. Geochimica et Cosmochimica Acta, 185. 251-277 doi:10.1016/j.gca.2016.01.034 | Journal (article/letter/editorial) | | SiO2-undersaturated lavas, 98 such as those from Nyiragongo Volcano (Tazieff, 1977; Tedesco et al., 2007), are...lava composition similar to those erupted at Nyiragongo, the Sugarloaf eruption 101 produced a 15-m...into the 117 underlying shield lavas of Ko‘olau Volcano. Clague and Dalrymple (1987) refer to these lavas...therefore similar in K2O content to volcanic 347 sanidine used to date many ash flows. A six-step analysis...rates of strongly SiO2-undersaturated lava at Nyiragongo volcano in 476 1977 (Tazieff, 1977). The interstitial |  | | Book | | With 249 Figures and a CD-ROM 123 Author Prof. Dr. Thomas Schlüter UNESCO Nairobi Office P.O. Box 30592...and institutions in several African, European and North American countries. My interest in the compilation...UNESCO Nairobi Office, Dr. Paul Vitta, Prof. Joseph Massaquoi, Alice Ochanda and Dr. Robert Höft (now Toronto)...of various geosites. Dr. Andreas Bergner (Potsdam), Wolfgang Zils (Berlin) and Dr. Christa Werner (Berlin)...of information on the geology of East Africa. To Dr. Wolfgang Wramik (Rostock) I am indebted for his |  | | Book | | phase relations in the system diopside–nepheline–sanidine studied in air and under 1, 2, 10, and 20 kb in...manuscript. I thank my two sons Dr. Neal S. Gupta (Bryant University, USA), Dr. Rick S. Gupta of Weizmann...Diopside–Nepheline–Leucite The Join Diopside–Nepheline–Sanidine Under Atmospheric Pressure . . . . . . . . . ...Experimental Study of the System Diopside–Nepheline–Sanidine at 0.1, 1 and 2 GPa and Variable Temperatures...Phase Relations in the System Diopside–Nepheline–Sanidine at 0.1 GPa [P(H2O) = P(Total)] . . . . . . . |  | | Journal (article/letter/editorial) | | Gaussberg olivine leucitite Gaussberg is a single volcano occurring on the coast of eastern Antarctica at...to high pressures and water contents in melts. Sanidine and plagioclase may join the phenocryst assemblage...leucite is a major factor in the evolution of the Nyiragongo lavas, which are similar apart from large variations...rocks of the Leucite Hills, Wyoming, the Vico volcano, western Italy, and the Toro-Ankole region. Neues... T., Foley, S.F., André, L., 2002. Nyiragongo volcano, DR Congo—petrology and mineral chemistry. Ber |  | | Book (volume) | | felspars we have been particularly fortunate in having Dr W. S. MacKenzie close at hand and are most grateful...nomenclatures we have been guided princip¬ ally by Dr. W. S. MacKenzie, whose assistance is gratefully...are: 1. 2. 3. 4. high-albite-high-sanidine high-albite-low-sanidine low-albite-orthoclase low-albite-microcline...low-albite-microcline The high-albite-high-sanidine series is one of complete solid solution, but within it there...potassium-rich sanidine. In the second high-temperature series, high-albite-low-sanidine, solid solution |  | | Report (issue) | | Folinsbee, R. E. The leakage of radiogenic argon from sanidine: Geochim. et Cosmochim. Acta, v. 25, no. 2, p...quantitatively retained by most sanidine at temperatures below 400°C. Sanidine that is fine-grained (-325...of seven biotite-sanidine pairs from bentonite clay horizons indicate that sanidine retains argon as...ages from the Blue Ridge and Piedmont Provinces of North Carolina, South Carolina, and Georgia identify three...250 to 350 m.y. West of the Blue Ridge front in North Carolina the sequence continues with ages from 350 |  | | Journal (article/letter/editorial) | | aegirine for Na, periclase for Mg, rutile for Ti, sanidine for K, wollastonite for Ca, pyrolusite for Mn...and the groundmass of plagioclase, leucite and sanidine in a natural leucite–basanite of Vesuvius. Given... 2001. Crystal and magma residence at Kilauea Volcano, Hawaii: 230Th–226Ra dating of the 1955 east rift...Platz, T., Foley, S.F., André, L., 2002. Nyiragongo volcano, DR Congo-petrology and mineal chemistry. Berichte |  | | Book | | HongKong Barcelona Budapest Professor Dr. A. B. KAMPUNZU Professor Dr. R. T. LUBALA Laboratoire de Petrologie...thank Springer-Verlag, the publishers, especially Dr. W. ENGEL (Geosciences Editorial) for the prompt...Permian times in Thdhak province (Fig. 2) along the north-south trending Tesoffi trough, on the eastern margin...northeastern Africa, especially in the Nile River valley, north from Khartoum towards the Egyptian frontier, the...continental trough on the southern borders of the Congo and Thnzania cratons, though comparable in size |  | | Journal (article/letter/editorial) | | xenoliths in the Oldoinyo Lengai carbonatitic volcano, Tanzania: Discusslon. 1455 Goss, J.A,, see Altaner...*r6u2+p"l+1voa)3-, a new fumarolic sublimate from Izalco volcano, E1 Salvador: Descriptive rnineralogy and crystal...0ldoinyo xenoliths crustal fenitized Tanzania: volcano, Lengai carbonatitic L468 Reply, 1111 Masuda, A..., S.S. Hafner: Locatlon of trace Fe3* ions in sanidine, KA1Si3O6, 97 Phi11ips, M.l^r., R.K. Popp, C.A...REE ninerals, 422 See Errata, 200 Nontronite,1346 North Carolina, grannockite, 595 Norway dollaseite-(Ce) |  | | Book (edition) | | Edition With 61 Figures and 68 Tables , Springer Dr. Daniel MUller Institute for Mineralogy Mining-Academy...Freiberg Brennhausgasse 14 09596 Freiberg, Germany Prof. Dr. David I. Groves The University of Western Australia...About half of the book is based on a PhD thesis by Dr Daniel MillIer which was produced at the Centre for...David Groves, the late Dr Nick Rock, Professor Eugen Stumpf}, Dr Wayne Taylor, and Dr Brendan Griffin. The...two authors. The book is dedicated to the memory of Dr Rock who initiated the research project but died |  | | Book | | Switzerland, into an old Basel family. His father Dr Adolf Streckeisen was a Professor in Medicine. Later...orthoclase, microcline, perthite, anorthoclase, sanidine, and albitic plagioclase (An0 to An5) P = plagioclase...unusual rock type is found only at Oldoinyo Lengai volcano in Tanzania. CaO calciocarbonatite 20 20 magnesiocarbonatite...Plutonic kalsilite-bearing rocks of the Aldan and North Baikal petrological provinces of Russia, which are...Evolved members of the group contain groundmass sanidine and potassium richterite. Zirconium silicates |  | | Book (edition) | | co-author, teacher, mentor, colleague and friend, Dr. Joseph A. Mandarino. -Malcolm E. Back Fleischer's...they are: Dr. Peter Bayliss, Dr. Ernst A.J. Burke, Dr. Anton and hakhmouradian,Robert Gault, Dr. Julian...Låszl6 Horvåth, Dr. Uwe Kolitsch, Locock,Gaspare Malet.to,Dr. Roger Mitchell, Renato Pagano. Dr. Ole Petersen...Robert Ramik,Andy Roberts, hallit, Dr. Chris Stanley,Tony Steede and Dr. ThomasWitzke. upport and encouragementof...Red Sea covc, known as Sharm Abhur, about 30 km north of Jiddah. Saudi Arabia. 74, 500. 78. 235-236. CM |  | | Book | | and Enlarged Edition Springer Authors Dr. Daniel MUller North Limited Exploration Division, New South...Alluvial Streets Parkes, N S W 2870, Australia Prof. Dr. David I. Groves Key Centre for Strategic Mineral...twothirds of the book is based on a PhD thesis by Dr Daniel MOiler which was produced at the Key Centre...David Groves, the late Dr Nick Rock, Professor Eugen Stumpfl, Dr Wayne Taylor, and Dr Brendon Griffin. The...two authors. The book is dedicated to the memory of Dr Rock who initiated the research project but died |  | | Book (edition) | | About half of the book is based on a Ph.D. thesis by Dr. Daniel Müller which was produced at the Centre for...Groves, the late Dr. Nick Rock, the late Prof. Eugen Stumpfl, Dr. Wayne Taylor, and Dr. Brendan Griffin...Australia, Brazil, China, Greece, Iran, Mongolia, North America, Russia, and Turkey, including new maps...in Santiago; North Limited in Parkes; Kanowna Belle Gold Mines in Kalgoorlie; PT North Mining Indonesia...displayed in the book. Dr. Annett Büttner, Dörthe Mennecke-Bühler, and the late Dr. Wolfgang Engel of Springer-Verlag |  | | Report (issue) | | 1957 and July 1958 are reported in seven tables: North American glacial geology, pluvial lake levels, relative...Calvin J. Radiocarbon dates of peats from North Pacific North America : p. 29-34. Ages are presented for...end of 1958 and includes geologic samples from North and South America, Australia, and miscellaneous...miscellaneous places, and archeologic samples from North, middle, and South America, and Africa. n. Crane, H. R.,...States, Canada, Mexico, South America, and the North and South Pacific. o. Johnson, Frederick. A bibliography |  | | Book | | plane ⊥b. Examples: many important minerals like sanidine and orthoclase (7 Sect. 11.6.2), clinopyroxenes...(high) β-quartz (. Fig. 11.42), C2/m for monoclinic sanidine and P1̄ for the triclinic plagioclases (. Fig...cm . Fig. 2.5 Phenocryst of alkali feldspar (sanidine) in trachyte of the Drachenfels, Siebengebirge...Cretaceous age are widely exposed on the coasts of the North and Baltic Sea, e.g., in southern England and on...predominate. Among these are salt particles from the North Sea whose proportion may reach as much as 50% of |  | | Book (volume) | | Schiavinatoite (Nb,Ta)BO4 Locality: Ampanodiana North pegmatite, Tetezantsio-Andoabatokely Pegmatite Field...Arsenato-Borates 57 Locality: Satimola salt dome, North Caspian region, Kazakhstan (type locality). Description:...Ti,Fe3+,Al)(BO3)O Locality: Hol Kol Mine (?), North Korea. Description: Dark brown grains. Mg-rich variety...Ca(CO3) Locality: Novofrolovskoye B-Cu deposit, North Urals, Russia. Description: Colourless grains forming...Nyerereite Na2Ca(CO3)2 Locality: Oldoinyo Lengai volcano, Tanzania (type locality). Description: Colourless |  | | Book (edition) | | one-third of this book is based on a Ph.D. thesis by Dr. Daniel Müller which was produced at the Centre for...Groves, the late Dr. Nick Rock, the late Prof. Eugen Stumpfl, Dr. Wayne Taylor and Dr. Brendan Griffin...in Santiago, North Limited in Parkes, Kanowna Belle Gold Mines in Kalgoorlie, PT North Mining Indonesia...displayed in this book. Dr. Annett Büttner, Dörthe Mennecke-Bühler and the late Dr. Wolfgang Engel of Springer-Verlag...Valley (Rwanda, Uganda, Democratic Republic of Congo): Example from a Within-Plate Setting. . . . . |
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