Academic literature on the topic 'Usagaran Belt'
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Journal articles on the topic "Usagaran Belt"
MORI, Keiko, Tatsuki TSUJIMORI, and Nelson BONIFACE. "Finding of talc– and kyanite–bearing amphibolite from the Paleoproterozoic Usagaran Belt, Tanzania." Journal of Mineralogical and Petrological Sciences 113, no. 6 (2018): 316–21. http://dx.doi.org/10.2465/jmps.180713.
Full textMöller, Andreas, Peter Appel, Klaus Mezger, and Volker Schenk. "Evidence for a 2 Ga subduction zone: Eclogites in the Usagaran belt of Tanzania." Geology 23, no. 12 (1995): 1067. http://dx.doi.org/10.1130/0091-7613(1995)023<1067:efagsz>2.3.co;2.
Full textHerms, Petra. "Fluids in a 2 Ga old subduction zone deduced from eclogite-facies rocks of the Usagaran belt, Tanzania." European Journal of Mineralogy 14, no. 2 (March 22, 2002): 361–73. http://dx.doi.org/10.1127/0935-1221/2002/0014-0361.
Full textBoniface, Nelson, and Tatsuki Tsujimori. "Pillow lava basalts with back-arc MORB affinity from the Usagaran Belt, Tanzania: relics of Orosirian ophiolites." Journal of the Geological Society 176, no. 5 (April 26, 2019): 1007–21. http://dx.doi.org/10.1144/jgs2018-205.
Full textMykhailov, V., and А. Tots. "A NEW GOLD ORE REGION IN TANZANIA." Visnyk of Taras Shevchenko National University of Kyiv. Geology, no. 3 (82) (2018): 55–59. http://dx.doi.org/10.17721/1728-2713.82.07.
Full textENGVIK, A. K., and B. BINGEN. "Granulite-facies metamorphism of the Palaeoproterozoic – early Palaeozoic gneiss domains of NE Mozambique, East African Orogen." Geological Magazine 154, no. 3 (April 13, 2016): 491–515. http://dx.doi.org/10.1017/s0016756816000145.
Full textDissertations / Theses on the topic "Usagaran Belt"
Lau, W. K. "Geochemical and Sm-Nd isotopic composition of Palaeoproterozoic eclogite and associated rocks in the Usagaran Orogenic Belt, Tanzania." Thesis, 2009. http://hdl.handle.net/2440/129279.
Full textEclogites from the Usagaran Orogenic Belt of Tanzania have been reliably dated at 2.0 Ga and are the oldest reported subduction-related eclogites within a well-preserved orogenic belt. Based on limited geochemistry from two samples of eclogite from the Usagaran Belt, Möller et al. (1995) concluded that the protoliths were similar to MORB. This study analyzed a larger number of eclogitic samples and a suite of structurally intercalated mafic and pelitic rocks to establish the tectonic setting of the Usagaran Orogenic Belt rocks. Eclogitic rocks from the Usagaran Orogenic Belt display LILE and LREE enrichment relative to present-day MORB. Variations in εNd values from depleted mantel at 2.0 Ga supported this interpretation. The mantle-derived mafic rocks show strong Nb depletions, indicating that they are subduction-related. Enrichment of mafic rocks in LILE and LREE are likely caused by dehydration of the subducting slab with some contamination from crustally derived materials perhaps via subducted sediment. The intercalated pelites are mainly derived from the Tanzanian Craton, with a significant mafic input evidenced by high Cr & Ni values. Based on the geochemical isotopic compositions and field relationships, the eclogites, mafic rocks and pelites all formed in a subduction setting that operated around 2.0 Ga. Despite the fact that the Earth was hotter in its early history, modern plate tectonics, (i. e., subduction of cold oceanic crust into a warm mantle resulting in high-pressure low-temperature metamorphism), occurred and was recorded in the Usagaran Belt during the Palaeoproterozoic. Thus modern-style plate tectonics have operated since at least 2.0 Ga.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2009
Brick, Rachael A. "Palaeoproterozoic eclogite formation in Tanzania: a structural, geochronological, thermochronological and metamorphic study of the Usagaran and Ubende orogenic belts." Thesis, 2011. http://hdl.handle.net/2440/70891.
Full textThesis (Ph.D.) -- University of Adelaide, School of Earth and Environmental Sciences, 2011
Book chapters on the topic "Usagaran Belt"
Boniface, Nelson, and Tatsuki Tsujimori. "New tectonic model and division of the Ubendian-Usagaran Belt, Tanzania: A review and in-situ dating of eclogites." In Plate Tectonics, Ophiolites, and Societal Significance of Geology: A Celebration of the Career of Eldridge Moores. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.2552(08).
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