Results 1 to 10 of about 34 (33)

Shrub and dwarf shrub communities of Sangilen Plateau [PDF]

BIO Web of Conferences, 2021
The paper presents a detailed ecological and caenotic characteristic of dwarf shrub and shrub communities growing in the highmountain belt of the Sangilen Plateau.
Zibzeev Evgeny, Igay Natalia, Sinkovskiy Evgeny, Savchuk Sergey, Lebed’ko Vladimir   +4 more
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MODELS FOR THE FORMATION OF POLYPHASE GABBRO-MONZODIORITE MASSIFS OF THE WESTERN SANGILEN IN THE COLLISIONAL AND TRANSTENSIONAL-SHEAR SETTINGS

Геодинамика и тектонофизика, 2023
A model for the formation of intrusions of the collision stage of 525–490 Ma and a model of magmatism of the transtensional shear stage of 465–440 Ma within the Mugur-Chinchilig and Erzin-Naryn blocks of Western Sangilen (Tuva) have been developed to ...
A. N. Semenov, O. P. Polyansky
doaj   +1 more source

FERROHÖGBOMITE-2S2N IN THE DIATEXITES OF WESTERN SANGILEN, SOUTH-EASTERN TUVA, RUSSIA

Геодинамика и тектонофизика, 2022
In the Western Sangilen (Tuva–Mongolia microcontinent, Central Asian Orogenic Belt, Russia) rare mineral ferrohögbomite-2S2N, for the first time, was found in a deep-seated contact aureole of the early Paleozoic Bayan-Kol gabbro-monzodiorite intrusion ...
A. Yu. Selyatitskii
doaj   +1 more source

AGE AND COMPOSITION OF THE EARLY PALEOZOIC MAGMATIC ASSOCIATIONS AND RELATED RARE-ELEMENT PEGMATITES IN THE SOUTH-EASTERN PART OF THE SANGILEN BLOCK, TUVA-MONGOLIAN MASSIF

Геодинамика и тектонофизика, 2021
The article presents new data on ages (U-Pb zircon dating, SIMS SHRIMP-II) and chemical compositions of rocks from gabbro-granitic and granite-leucogranitic magmatic associations.
L. G. Kuznetsova, S. P. Shokalsky, S. A. Sergeev, S. I. Dril   +3 more
doaj   +1 more source

TECTONIC POSITION OF MINGLING DYKES IN ACCRETION-COLLISION SYSTEM OF EARLY CALEDONIDES OF WEST SANGILEN (SOUTH-EAST TUVA, RUSSIA)

Геодинамика и тектонофизика, 2015
Dykes composed of basic rocks and granite are formed due to interactions between melts in a wide range of conditions, from contrasting compositions and fluid saturation rates to various tectonic settings and processes at different depths.
Irina V. Karmysheva, Vladimir G. Vladimirov, Aleksander G. Vladimirov, Roman A. Shelepaev, Vladislav A. Yakovlev, Elena A. Vasyukova   +5 more
doaj   +1 more source

THE ROLE OF MAGMATIC HEAT SOURCES IN THE FORMATION OF REGIONAL AND CONTACT METAMORPHIC AREAS IN WEST SANGILEN (TUVA, RUSSIA)

Геодинамика и тектонофизика, 2019
The tectonomagmatic evolution of the Sangilen massif has been described in detail in numerous publications, but little attention was given to heat sources related to the HT/LP metamorphism.
O. P. Polyansky, S. A. Kargopolov, A. E. Izokh, A. N. Semenov, A. V. Babichev, A. N. Vasilevsky   +5 more
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MECHANISMS OF MAGMATIC MINGLING IN COMPOSITE DYKES: MODELS OF DISPERSION AND SHEAR DILATATION

Геодинамика и тектонофизика, 2019
This article is focused on the intrusion and formation of combined dykes. Two main groups of conventionally magmatic mingling are distinguished: (1) plutonic bodies, and (2) combined dykes.
V. G. Vladimirov, V. A. Yakovlev, I. V. Karmysheva   +2 more
doaj   +1 more source

THERMOCHRONOLOGY OF MINGLING DYKES IN WEST SANGILEN (SOUTH‐EAST TUVA, RUSSIA): EVIDENCE OF THE COLLAPSE OF THE COLLISIONAL SYSTEM IN THE NORTH‐WESTERN EDGE OF THE TUVA‐MONGOLIA MASSIF

Геодинамика и тектонофизика, 2017
In West Sangilen (South‐East Tuva, Russia), there are outcrops of metamorphic and magmatic complexes of early Caledonides, which are related to the period of long‐term collisional and post‐collisional events in the north‐ western edge of the Tuva ...
A. G. Vladimirov, I. V. Karmysheva, V. A. Yakovlev, A. V. Travin, A. A. Tsygankov, G. N. Burmakina   +5 more
doaj   +1 more source

NUMERICAL SIMULATION OF MAGMA MINGLING (CASE OF BAYANKOL GABBRO‐GRANITE SERIES, SANGILEN, TUVA)

Геодинамика и тектонофизика, 2017
A new numerical model has been developed that makes it possible to describe the process of formation of a dyke of a combined composition on the basis of the dynamics of a viscous compressible fluid.
O. P. Polyansky, A. N. Semenov, V. G. Vladimirov, I. V. Karmysheva, A. G. Vladimirov, V. A. Yakovlev   +5 more
doaj   +1 more source

THE AGE OF EARLY COLLISIONAL GRANITOIDS OF WESTERN SANGILEN (SE TUVA): IMPLICATIONS FOR ESTIMATING THE DURATION OF OROGENY AT THE MARGIN OF THE TUVA-MONGOLIAN MASSIF

Геодинамика и тектонофизика
The first U-Pb isotope-geochronological data were obtained on the age of early collisional granitoids of the Matut massif (Western Sangilen, SE Tuva).
D. V. Semenova, V. G. Vladimirov, I. V. Karmysheva, V. A. Yakovlev   +3 more
doaj   +1 more source