Добірка наукової літератури з теми "Usagaran"
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Статті в журналах з теми "Usagaran"
Collins, Alan S., Steven M. Reddy, Craig Buchan, and Abdul Mruma. "Temporal constraints on Palaeoproterozoic eclogite formation and exhumation (Usagaran Orogen, Tanzania)." Earth and Planetary Science Letters 224, no. 1-2 (July 2004): 175–92. http://dx.doi.org/10.1016/j.epsl.2004.04.027.
Повний текст джерелаMORI, 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.
Повний текст джерелаMöller, 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.
Повний текст джерелаReddy, S. M., A. S. Collins, and A. Mruma. "Complex high-strain deformation in the Usagaran Orogen, Tanzania: structural setting of Palaeoproterozoic eclogites." Tectonophysics 375, no. 1-4 (November 2003): 101–23. http://dx.doi.org/10.1016/s0040-1951(03)00335-4.
Повний текст джерелаSommer, H. "SHRIMP zircon ages for post-Usagaran granitoid and rhyolitic rocks from the Palaeoproterozoic terrain of southwestern Tanzania." South African Journal of Geology 108, no. 2 (September 1, 2005): 247–56. http://dx.doi.org/10.2113/108.2.247.
Повний текст джерелаBoniface, 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.
Повний текст джерелаHerms, 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.
Повний текст джерелаRing, Uwe, Alfred Kröner, and Theofilos Toulkeridis. "Palaeoproterozoic granulite-facies metamorphism and granitoid intrusions in the Ubendian-Usagaran Orogen of northern Malawi, east-central Africa." Precambrian Research 85, no. 1-2 (November 1997): 27–51. http://dx.doi.org/10.1016/s0301-9268(97)00028-4.
Повний текст джерелаReddy, Steven M., Alan S. Collins, Craig Buchan, and Abdul H. Mruma. "Heterogeneous excess argon and Neoproterozoic heating in the Usagaran Orogen, Tanzania, revealed by single grain 40Ar/39Ar thermochronology." Journal of African Earth Sciences 39, no. 3-5 (June 2004): 165–76. http://dx.doi.org/10.1016/j.jafrearsci.2004.07.052.
Повний текст джерелаSommer, H., and A. Kröner. "Igneous petrology, zircon geochronology and geochemistry of multiply emplaced granitoid bodies from the Palaeoproterozoic Usagaran domain in central Tanzania." Journal of African Earth Sciences 150 (February 2019): 626–56. http://dx.doi.org/10.1016/j.jafrearsci.2018.09.017.
Повний текст джерелаДисертації з теми "Usagaran"
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.
Повний текст джерелаEclogites 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.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, School of Earth and Environmental Sciences, 2011
Книги з теми "Usagaran"
Ravnborg, Helle Munk. Intensification and differentiation in agricultural and livestock production: Usagara Division, Tanzania. [Wageningen]: International Course for development oriented Research in Agriculture, 1990.
Знайти повний текст джерелаЧастини книг з теми "Usagaran"
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).
Повний текст джерела