Results 31 to 40 of about 151 (68)

Element diffusion in composite xenoliths from alkaline basalts (West Sangilen, Russia)

, 2012
Griffin, W.L., O\u27Reilly, S.Y., Malkovets, V.G., Kuzmin, D.V., Gibsher, A.A.   +4 more
core  

An evidence for the composition of the Ordovician upper mantle beneath West Sangilen (Southeast Tuva, Russia)

, 2008
Griffin, W.L., Malkovets, V.G., Litasov, Y.D., O’Reilly, S.Y., Gibsher, A.A.   +4 more
core  

Early Permian Age of Nepheline Syenites of the Korgere–Daba Massif (Sangilen Highlands, Tuva)

Doklady Earth Sciences, 2019
This paper reports on geochronological U–Pb studies of baddeleyite from nepheline syenite of the Korgere-Daba alkaline massif, which is the largest massif within the Sangilen Highlands (Tyva). The established age of rocks, 295 ± 1 Ma, indicates that, in the Early Permian, undersaturation by silica magmatism occurred in the region in addition to the ...
E B Salnikova, I V Anisimova, V V Yarmolyuk   +2 more
exaly   +5 more sources

Stratigraphy of Precambrian Rocks of the Western Section of the Sangilen Highland (Tuva)

International Geology Review, 1959
The stratigraphic sequence of the Precambrian complex of the western Sangilen Highlands, Tannu Tuva, include schists, schistose sandstones, fine-gravel conglomerates, micaceous and ferruginous quartzites, graphitic marbles, and gneisses of the Teskhem, Mugur, Balyktyghkem, Chartyss, and Naryn formations, which grade upward into one another without ...
A. V. Ilin
exaly   +3 more sources

Petrogenesis of Extremely Lithium-Rich Spodumene Aplites of the Tastyg Deposit, Sangilen Highland, Tyva Republic

Doklady Earth Sciences, 2009
1262 The magmatic origin of Li rich spodumene gran ites and pegmatites is confirmed by geological data, finds of melt inclusions in the minerals of these rocks, and, additionally, for homogenous veins, by the simi larity of their average bulk compositions to that of the Li saturated granitic eutectoid melt [1, 2].
V Yu Prokof'Ev, L G Kuznetsova
exaly   +3 more sources

Collisional Mafic Magmatism of the Fold–Thrust Belts Framing Southern Siberia (Western Sangilen, Southeastern Tuva)

Russian Geology and Geophysics, 2018
Reimar Seltmann, A E Izokh
exaly   +3 more sources

Bayan-Kol Gabbro–Granite Association (Western Sangilen, Southeastern Tuva): Composition, Age Boundaries, and Tectonic and Geodynamic Settings

Russian Geology and Geophysics, 2019
Abstract —The Bayan-Kol gabbro–granite association has been recognized within the West Sangilen fragment of collision zone in the northwestern framing of the Tuva–Mongolian massif, and its composition, age, and tectonic and geodynamic settings have been studied. The association includes the Bayan-Kol pluton and composite (mingling) dikes,
D V Semenova, S N Rudnev
exaly   +3 more sources

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Two Types of High-Grade Metamorphism in West Sangilen (Southeast Tuva)

Doklady Earth Sciences, 2011
I V Karmysheva, N N Kruk, N I Volkova
exaly   +2 more sources

Olivine Megacrysts in Alkaline Basalt Dikes of the Western Sangilen Region, Southeastern Tuva

Doklady Earth Sciences
A E Izokh, Ya Yu Shelepov
exaly   +2 more sources

The Age, Composition, and Provenances of Terrigenous Rocks in the South of the Sangilen Block of the Central Asian Orogenic Belt

Russian Geology and Geophysics
Впервые получены петрогеохимические, изотопные (Sm-Nd) и геохронологические U-Th-Pb (LA-ICP-MS по детритовым цирконам) характеристики терригенных пород из мощной толщи в южной части Сангиленского блока, входящего в состав Центрально-Азиатского складчатого пояса (ЦАСП).
S I Shkol'Nik
exaly   +3 more sources