Lee, C.T., Rudnick, R.L., McDonough, W.F., Horn, I. (2000) Petrologic and geochemical investigation of carbonates in peridotite xenoliths from northeastern Tanzania. Contributions to Mineralogy and Petrology, 139, 470-484.

Reference Search (possible matching items)

	Koornneef, Janne M., Davies, Gareth R., Döpp, Sonja P., Vukmanovic, Zoja, Nikogosian, Igor K., Mason, Paul R.D. (2009) Nature and timing of multiple metasomatic events in the sub-cratonic lithosphere beneath Labait, Tanzania. Lithos, 112. 896-912 doi:10.1016/j.lithos.2009.04.039	Journal (article/letter/editorial)
	events in the sub-cratonic lithosphere beneath Labait, Tanzania Janne M. Koornneef a,⁎, Gareth R. Davies a...April 2009 Available online 6 June 2009 Keywords: Tanzania Cratonic lithospheric mantle Xenolith Metasomatism...Sm–Nd systematics of xenoliths from Labait volcano, north-central Tanzania, document multiple metasomatic...Generally, the rift-related metasomatism beneath Tanzania has caused formation of interstitial clinopyroxene...sub-continental lithospheric mantle (SCLM) beneath Tanzania has experienced multiple metasomatic events related
	Bellucci, Jeremy J., McDonough, William F., Rudnick, Roberta L. (2011) Thermal history and origin of the Tanzanian Craton from Pb isotope thermochronology of feldspars from lower crustal xenoliths. Earth and Planetary Science Letters, 301 (3) 493-501 doi:10.1016/j.epsl.2010.11.031	Journal (article/letter/editorial)
	granulitefacies lower crustal xenoliths from the Labait Volcano on the eastern margin of the Tanzanian Craton...isochrons of ∼ 2.4 Ga, within uncertainty of U–Pb zircon ages from the same sample suite. The Pb isotopic...our data imply that the cratonic lithosphere in Tanzania formed ca. ∼ 2.7 Ga, in a convergent margin setting...thermochronology of accessory phases (e.g., apatite, monazite, zircon, rutile) from lower crustal xenoliths of the Kaapvaal...having little common Pb such as monazite, titanite, zircon, apatite and rutile), or, if there is a spread
	Aulbach, Sonja, Rudnick, Roberta L., McDonough, William F. (2007) Li-Sr-Nd isotope signatures of the plume and cratonic lithospheric mantle beneath the margin of the rifted Tanzanian craton (Labait) Contributions to Mineralogy and Petrology, 155 (1) 79-92 doi:10.1007/s00410-007-0226-4	Journal (article/letter/editorial)
	beneath the margin of the rifted Tanzanian craton (Labait) Sonja Aulbach Æ Roberta L. Rudnick Æ William F...peridotite xenoliths from the Quaternary Labait volcano, Tanzania, document the influence of rift-related...data collectively indicate that the plume beneath Labait has HIMU characteristics in Sr, Nd and Li isotope...Rift Plume Cratonic lithospheric mantle Tanzania Introduction Xenolithic peridotites carried in...in rift-related alkali basalts from Tanzania offer a unique opportunity to investigate the effects of
	Chesley, John T., Rudnick, Roberta L., Lee, Cin-Ty (1999) Re-Os systematics of mantle xenoliths from the East African Rift: age, structure, and history of the Tanzanian craton. Geochimica et Cosmochimica Acta, 63 (7) 1203-1217 doi:10.1016/s0016-7037(99)00004-6	Journal (article/letter/editorial)
	systematic study of mantle xenoliths from the Labait volcano, which lies within the East African Rift on...Tanzanian craton. The Re-Os systematics of the Labait xenoliths show that ancient, refractory lithosphere...range measured for metasomatic xenoliths and the Labait host melilitite (0.13 to 0.14). This range is taken...originally thicker than the ⬃140 km currently beneath Labait, then the lithosphere has been thinned, either...the eastern border of the Tanzanian craton. This region is an ideal place to carry out such a study because
	Selway, Kate, Yi, Jun, Karato, Shun-Ichiro (2014) Water content of the Tanzanian lithosphere from magnetotelluric data: Implications for cratonic growth and stability. Earth and Planetary Science Letters, 388. 175-186 doi:10.1016/j.epsl.2013.11.024	Journal (article/letter/editorial)
	of craton formation using magnetotelluric data. Tanzania is an ideal natural laboratory to test hypotheses...contents were calculated for two locations in Tanzania: the ﬁrst in the stable central Tanzanian Craton...the base of the lithosphere in this dehydrated region. The partial melting and dehydration of a plume...which we test models against MT observations in Tanzania. MT measures electrical conductivity, which is...Karato and Wang, 2013; Yoshino et al., 2009). Tanzania is an ideal natural laboratory to test hypotheses
	Glebovitsky, V.A., Nikitina, L.P., Khiltova, V.Ya., Ovchinnikov, N.O. (2004) The thermal regimes of the upper mantle beneath Precambrian and Phanerozoic structures up to the thermobarometry data of mantle xenoliths. Lithos, 74 (1) 1-20 doi:10.1016/j.lithos.2003.03.001	Journal (article/letter/editorial)
	East Siberia, Northeastern Europe (Archangelsk region and Finland), South Africa, India, and North America...alkali basalts of the Labait and Lashaine volcanoes in Tanzania. The Labait volcano is situated in the Archaean...Mozambique belt (0.9 – 0.6 Ga), which consist of a region of reworked Archaean crust directly east of the...Os depletion ages for the mantle xenoliths from Labait yield minimum melt extraction ages up to c 2.8...Archaean (Lee and Rudnick, 1999). The Lashaine volcano is situated in the Mozambique collisional belt
	Mansur, A. T., Manya, S., Timpa, S., Rudnick, R. L. (2014) Granulite-Facies Xenoliths in Rift Basalts of Northern Tanzania: Age, Composition and Origin of Archean Lower Crust. Journal of Petrology, 55 (7) 1243-1286 doi:10.1093/petrology/egu024	Journal (article/letter/editorial)
	OF DAR ES SALAAM, PO BOX 35052, DAR ES SALAAM, TANZANIA RECEIVED AUGUST 12, 2013; ACCEPTED APRIL 11,...entrained within Quaternary rift basalts in northern Tanzania document the composition, equilibration conditions...beneath the eastern margin of the Tanzanian Craton (Labait) and the adjacent Mozambique Belt (Lashaine and...dominate throughout the suites (2·66 Ga based on U^Pb zircon ages), demonstrating that deep-seated Archean lithosphere...element; Mozambique Belt;Tanzanian Craton; U^Pb zircon dates I N T RO D U C T I O N Processes operating
	*Dawson, J.B. (2012) Nephelinite–melilitite–carbonatite relationships: Evidence from Pleistocene–recent volcanism in northern Tanzania. Lithos, 152. 3-10 doi:10.1016/j.lithos.2012.01.008*	Journal (article/letter/editorial)
	from Pleistocene–recent volcanism in northern Tanzania J.B. Dawson ⁎ Grant Institute of Geosciences,...canoes in the Gregory Rift Valley of northern Tanzania (termed the Younger Extrusives) comprise one of...volcanism in northern Tanzania The Late Tertiary–Recent volcanic province of northern Tanzania is the most recently...and northern Tanzania. Because of its relatively young age (b~6 Ma), the northern Tanzania province contains...producing basalt and trachyte later), and the oldest volcano in the province, Essimingor — dated at 5.9–5.8
	Aulbach, Sonja, Rudnick, Roberta L. (2009) Origins of non-equilibrium lithium isotopic fractionation in xenolithic peridotite minerals: Examples from Tanzania. Chemical Geology, 258 (1) 17-27 doi:10.1016/j.chemgeo.2008.07.015	Journal (article/letter/editorial)
	xenolithic peridotite minerals: Examples from Tanzania Sonja Aulbach ⁎, Roberta L. Rudnick Geochemistry...beneath the East African Rift in Tanzania (Lashaine, Olmani, Labait) show systematic differences in their...concentrations (N 2 ppm) and δ7Li (N4‰) in olivine from many Labait and Olmani samples are attributed to an older,...cooling, if the samples were erupted in lavas. In Tanzania, the peridotites experienced rift-related heating...minerals in peridotite xenoliths from the nearby Labait volcano (Aulbach et al., 2008) in order to determine
	Mollel, Godwin F., Swisher, Carl C., Feigenson, Mark D., Carr, Michael J. (2008) Geochemical evolution of Ngorongoro Caldera, Northern Tanzania: Implications for crust–magma interaction. Earth and Planetary Science Letters, 271 (1) 337-347 doi:10.1016/j.epsl.2008.04.014	Journal (article/letter/editorial)
	Geochemical evolution of Ngorongoro Caldera, Northern Tanzania: Implications for crust–magma interaction Godwin...part of the East African Rift system of northern Tanzania. We report here, major and trace element abundances... a ﬁnding consistent with other studies in the region. Laser incremental-heating of basalt samples and...km from southernmost Oldeani volcano to the active Oldoinyo Lengai volcano in the north (Fig. 1). Ngorongoro...diameter and 3000 m high. Ngorongoro is the only NVH volcano that exposes a well-preserved internal caldera
	Ferry, J. M., Watson, E. B. (2007) New thermodynamic models and revised calibrations for the Ti-in-zircon and Zr-in-rutile thermometers. Contributions to Mineralogy and Petrology, 154 (4) 429-437 doi:10.1007/s00410-007-0201-0	Journal (article/letter/editorial)
	thermodynamic models and revised calibrations for the Ti-in-zircon and Zr-in-rutile thermometers J. M. Ferry Æ E....are independently variable phase components in zircon. Accordingly, the equilibrium controlling the Zr...Zr content of rutile coexisting with zircon is ZrSiO4 = ZrO2 (in rutile) + SiO2. The equilibrium controlling...controlling the Ti content of zircon is either ZrSiO4 + TiO2 = ZrTiO4 + SiO2 or TiO2 + SiO2 = TiSiO4, depending...SiO2 ðaSiO2 Þ as well as T, and the Ti content of zircon depends on aSiO2 and aTiO2 as well as T. New and
	Casagli, Alessio, Frezzotti, Maria Luce, Peccerillo, Angelo, Tiepolo, Massimo, De Astis, Gianfilippo (2017) (Garnet)-spinel peridotite xenoliths from Mega (Ethiopia): Evidence for rejuvenation and dynamic thinning of the lithosphere beneath the southern Main Ethiopian Rift. Chemical Geology, 455. 231-248 doi:10.1016/j.chemgeo.2016.11.001	Journal (article/letter/editorial)
	xenoliths in Quaternary alkali-basalts at Mega (Sidamo region, Ethiopia) provide evidence for refertilization...depression and the Anza Graben, the Kenya Rift, and Tanzania; Fig. 1a), revealed the presence of a chemically...only from the Anza Graben, the Kenya Rift, and Tanzania (Dawson and Smith, 1988; Henjes-Kunst and Altherr...from the southern MER, sampled at Mega (Sidamo region, Ethiopia; MA Fig. 1b), that contain spinel-pyroxene...Quaternary volcanoes at Mega in the Sidamo MA region (Fig. 1b). Here, some pre-existing extensional
	*Watson, E. B., Wark, D. A., Thomas, J. B. (2006) Crystallization thermometers for zircon and rutile. Contributions to Mineralogy and Petrology, 151 (4) 413-433 doi:10.1007/s00410-006-0068-5*	Journal (article/letter/editorial)
	J. B. Thomas Crystallization thermometers for zircon and rutile Received: 29 August 2005 / Accepted:...online: 3 March 2006 Springer-Verlag 2006 Abstract Zircon and rutile are common accessory minerals whose...changes with temperature in the uptake of Ti in zircon and Zr in rutile. Detailed calibrations of the...presented as two geothermometers—Ti content of zircon and Zr content of rutile—that may ﬁnd wide application...similar to that used for zircon, rutile crystals were grown in the presence of zircon and quartz (or hydrous
	Rudnick, Roberta L., Lee, Cin-Ty (2002) Osmium Isotope Constraints on Tectonic Evolution of the Lithosphere in the Southwestern United States. International Geology Review, 44 (6) 501-511 doi:10.2747/0020-6814.44.6.501	Journal (article/letter/editorial)
	independently verifying geophysical interpretations of this region of the Earth. Moreover, under favorable circumstances...isochron plot for a suite of mantle xenoliths from Labait volcano, Tanzanian craton (Chesley et al., 1999). Os...Furthermore, unlike stable Archean cratons, this region has high heat flow and has experienced extensive... v. 63, p. 1203–1216. Davis, W. J., 1997, U-Pb zircon and rutile ages from granulite xenoliths in the...and Kinny, P. D., 2001, Mineral chemistry of a zircon-bearing, composite, veined, and metasomatised upper-mantle
	*Kapustin, Yu. L., Polyakov, A. I. (1985) CARBONATITE VOLCANOS OF EAST AFRICA AND THE GENESIS OF CARBONATITES. International Geology Review, 27 (4) 434-448 doi:10.1080/00206818509466431*	Journal (article/letter/editorial)
	East African rift system in Kenya, Uganda, and Tanzania. Although some of these were studied by earlier...area; the Kavirondo ridge; and the Natron-Engaruka region. The rock samples studied were collected by V.... The eroded cinder cone of the gigantic Elgon Volcano is as much as 85 km in diameter and 3.5 km in height...height. The eroded caldera of the Napak Volcano originally ex ceeded 50 km in diameter and 3.5 km in...in height [ 1 2 ] . The Kizingiri Volcano must once have had a cinder cone more than 50 km in diameter
	Chakhmouradian, A.R., Böhm, C.O., Demény, A., Reguir, E.P., Hegner, E., Creaser, R.A., Halden, N.M., Yang, P. (2009) “Kimberlite” from Wekusko Lake, Manitoba: Actually a diamond-indicator-bearing dolomite carbonatite. Lithos, 112. 347-357 doi:10.1016/j.lithos.2009.03.039	Journal (article/letter/editorial)
	minerals are Na–Sr–REE-bearing ﬂuorapatite and low-Hf zircon. With the exception of spinel and ilmenite macrocrysts...important implications for diamond exploration in the region. As we shall later show, it also bears on the interpretation...subordinate spinel-group minerals, ilmenite and zircon. Garnets were not observed in the present work...of ferric iron (∼8 mol% Fe2O3). Fluorapatite and zircon are ubiquitous accessory minerals. In BSE images...invariably at or below their limit of detection. Zircon macrocrysts contain 1.1–1.4 wt.% HfO2 (Zr/Hf =
	*Beccaluva, Luigi, Bianchini, Gianluca, Wilson, Marjorie (2011) Volcanism and Evolution of the African Lithosphere. GSA Special Paper* 478. Geological Society of America doi:10.1130/2011.2478**	Report (issue)
	2011006982 Cover: (Top) Mount Meru (4566 m high), Tanzania, from the western side. Courtesy Philippe Nonnotte...(Bottom) Carbonatite lava at Oldoinyo Lengai volcano, northern Tanzania. Courtesy Alexander J. Teague. 10 9...low-velocity anomaly beneath Ethiopia, Kenya, and Tanzania: Constraints on the origin of the African superswell...lithospheric mantle beneath the East African Rift in Tanzania and its potential signatures in rift magmas ....geochemistry of alkaline lava series, Kilimanjaro, Tanzania: New constraints on petrogenetic processes .
	Fu, Bin, Page, F. Zeb, Cavosie, Aaron J., Fournelle, John, Kita, Noriko T., Lackey, Jade Star, Wilde, Simon A., Valley, John W. (2008) Ti-in-zircon thermometry: applications and limitations. Contributions to Mineralogy and Petrology, 156 (2) 197-215 doi:10.1007/s00410-008-0281-5	Journal (article/letter/editorial)
	10.1007/s00410-008-0281-5 ORIGINAL PAPER Ti-in-zircon thermometry: applications and limitations Bin Fu...well as zircon megacrysts (84) from kimberlite, Early Archean detrital zircons (32), and zircon reference... OH 44074, USA for zircon crystallization were calculated using the Tiin-zircon thermometer (Watson...apparent Ti-in-zircon temperatures range from 500° to 850°C, and are lower than either zircon saturation...insufficient to explain the seemingly low temperatures for zircon crystallization in igneous rocks. MELTs calculations
	Babuška, Vladislav, Plomerová, Jaroslava (2013) Boundaries of mantle–lithosphere domains in the Bohemian Massif as extinct exhumation channels for high-pressure rocks. Gondwana Research, 23 (3) 973-987 doi:10.1016/j.gr.2012.07.005	Journal (article/letter/editorial)
	in the region during 1992–2010 within several passive seismic experiments. K—Kozákov volcano. asthenosphere...outcropping in the southern part of the studied region, represents the largest high-grade crystalline...Further to the north, Granulitgebirge is another ST region with felsic granulites containing garnet peridote...(Karousová et al., in press), except of a broad region of low velocity perturbations along the Eger Rift...zones). 977 less dense arrays of stations, the region belongs to well imaged massifs as to their deep
	Friend, C., Bennett, V., Nutman, A. (2002) Abyssal peridotites >3,800 Ma from southern West Greenland: field relationships, petrography, geochronology, whole-rock and mineral chemistry of dunite and harzburgite inclusions in the Itsaq Gneiss Complex. Contributions to Mineralogy and Petrology, 143 (1) 71-92 doi:10.1007/s00410-001-0332-7	Journal (article/letter/editorial)
	rocks and siliceous metasediments. SHRIMP U/Pb zircon geochronology on non-igneous zircons in altered...a comprehensive study (geological mapping, U/Pb zircon geochronology, petrography, mineral and whole rock...Archaean Itsaq Gneiss Complex of the Godthåbsfjord region is dominated by 3,850–3,640 Ma tonalite–trondhjemite–granodiorite...and sedimentary rocks form <5% of the complex and zircon chronology yields ages of ca. 3,850–3,600 Ma (Michard-Vitrac...1992; Komiya et al. 1999), felsic volcanic and volcano-sedimentary rocks, together with chemical sediments
	Lee, Cin-Ty A., Chin, Emily J. (2014) Calculating melting temperatures and pressures of peridotite protoliths: Implications for the origin of cratonic mantle. Earth and Planetary Science Letters, 403. 273-286 doi:10.1016/j.epsl.2014.06.048	Journal (article/letter/editorial)
	the text. Note that some cratonic peridotites (Tanzania and Siberia) have been subdivided into spinel...P s for garnet-bearing and garnet-free (mostly Tanzania and Siberia) peridotites. We show the subsolidus...are clearly speculations. We assume that peaks in zircon age populations indicate preferential continental...growth whereas time intervals without signiﬁcant zircon age populations represent periods of minimal crustal...Primitive basalts and andesites from the Mt. Shasta region, N. California: products of varying melt fraction
	Liu, Chuan-Zhou, Yang, Liu-Yang, Li, Xian-Hua, Tchouankoue, Jean Pierre (2017) Age and Sr-Nd-Hf isotopes of the sub-continental lithospheric mantle beneath the Cameroon Volcanic Line: Constraints from the Nyos mantle xenoliths. Chemical Geology, 455. 84-97 doi:10.1016/j.chemgeo.2016.07.022	Journal (article/letter/editorial)
	coalescence of three spatter-cones. The southern volcano is a cinder cone situated two kilometers south...the field of mantle xenoliths from the Archean Tanzania craton SC (Fig. 4a, b). The studied Nyos xenoliths...anomaly focused at the CVL continent-ocean boundary region (e.g., Mt Cameroon) was inherited from relatively...volume of crustal-derived NU granotoids in this region (Black and Liégeois, 1993). Our results indicate...Pan-African Kekem gabbro-norite (West-Cameroon), U–Pb zircon age, geochemistry and Sr-Nd isotopes: Geodynamical
	Peltonen, Petri, Brügmann, Gerhard (2006) Origin of layered continental mantle (Karelian craton, Finland): Geochemical and Re–Os isotope constraints. Lithos, 89 (3) 405-423 doi:10.1016/j.lithos.2005.12.013	Journal (article/letter/editorial)
	Similar ages have been obtained by single grain zircon U–Pb dating of mafic lower crustal xenoliths found...and Peltonen et al. (in press) have reported U–Pb zircon and TDM(Nd) model ages of the order of 3.5–3.7...formation ages of the overlying continental crust. Zircon crystallisation ages for TTG-series orthogneisses...(Griffin et al., 2004), but in the central Slave region the Archean “ultradepleted” layer became underplated...geochemistry of peridotite xenoliths from the Labait Volcano, Tanzania. In: Gurney, J.J., et al. (Ed.), Proceedings
	Tang, Yan-Jie, Zhang, Hong-Fu, Nakamura, Eizo, Ying, Ji-Feng (2011) Multistage melt/fluid-peridotite interactions in the refertilized lithospheric mantle beneath the North China Craton: constraints from the Li–Sr–Nd isotopic disequilibrium between minerals of peridotite xenoliths. Contributions to Mineralogy and Petrology, 161 (6) 845-861 doi:10.1007/s00410-010-0568-1	Journal (article/letter/editorial)
	including Kaapvaal, east Greenland, Siberia and Tanzania, are from Rudnick et al. (2004) 847 20 Spinel...al. 2004). Some peridotite xenoliths from this region have SiO2 contents higher than the primitive mantle...Fanshi basalts (Tang et al. 2006) from the studied region and for the Mesozoic lithospheric mantle (LM) beneath...Central (Wagner and Deloule 2007) and Tanzanian Labait volcano (Aulbach et al. 2008), indicates that these...as previously documented for xenoliths from this region (Ma and Xu 2006; Tang et al. 2008; Xu et al. 2008b)
	Dessai, A.G., Viegas, A., Griffin, W.L. (2021) Thermal architecture of cratonic India and implications for decratonization of the Western Dharwar Craton: Evidence from mantle xenoliths in the Deccan Traps. Lithos, 382. 105927pp. doi:10.1016/j.lithos.2020.105927	Journal (article/letter/editorial)
	lithospheric mantle beneath this poorly sampled region of the WDC. The prime objective of this study is...granites are dated to 2.614 + 10 Ga (SIMS U-Pb zircon ages) (Jayananda et al., 2006) indicative of the...Valsad (Singh et al., 2014). The oceanic Jo ur region in the west extending approximately from 25o N...found in nephelinite-basanite plugs in Bhuj (Kutch region of Gujarat) (Mukherjee and Jo ur Biswas, 1988;...partly by the thermomagmatic events witnessed by the region during the course of its evolution. 6.1 Textural

Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 4, 2024 08:18:49

Go to top of page

Zircon from Labait volcano, Manyara Region, Tanzania

Zircon from
Labait volcano, Manyara Region, Tanzania