Conditions of Formation of Layered Intrusions of the Monchegorsk Magmatic ClusterPetrology - Tập 30 - Trang 369-391 - 2022
V. S. Semenov, O. V. Kazanov, S. I. Korneev, E. B. Salnikova, S. V. Semenov
The paper presents geochronological data and results of petrological modeling of the Monchegorsk and Monchetundra layered massifs. The U-Pb ID-TIMS zircon dating of norite from the marginal zone of Mt. Nittis yielded 2506 ± 7 Ma, which coincides with previous data on similar rocks from other areas. Based on the comparison of sections of the Monchegorsk and Kivakka massifs, the pre-erosion thicknes...... hiện toàn bộ
Distinctive petrological, geochemical, and geodynamic features of subduction-related magmatismPetrology - Tập 18 - Trang 84-106 - 2010
N. L. Dobretsov
Geological-petrological and geochemical data on subduction-related magmatism (including the volumes and compositions of the corresponding magmatic series) are compared to the results of experiments and numerical simulation. The subduction zone is subdivided into five depth sectors and volcanic zones I, II, and III: 1 is the accretionary wedge that controls the geodynamic stability of subduction; 2...... hiện toàn bộ
Determining the Geodynamic Setting of Adakitic Granitoids Using Geochemical DataPetrology - Tập 26 - Trang 255-264 - 2018
S. D. Velikoslavinskii, A. B. Kotov, D. P. Krylov, A. M. Larin
Discriminant analysis was performed for representative sets of igneous rocks with adakitic geochemical signatures (granitoids of Archean tonalite–trondhjemite–granodiorite suites, island-arc adakites, and adakites and adakitic granitoids of collisional to postcollisional geodynamic settings). It was shown that the granitoids of Archean tonalite–trondhjemite–granodiorite suites are significantly di...... hiện toàn bộ
Visual in-situ monitoring of the behavior and phase states of water-hydrocarbon inclusions at high temperatures and pressuresPetrology - Tập 19 - Trang 653-674 - 2011
V. S. Balitsky, S. V. Penteley, L. V. Balitskaya, M. A. Novikova, T. M. Bublikova
Experiments aimed at examining interactions between hydrothermal solutions and caustolithic rocks, oil, and its major fractions were carried out to obtain model water-hydrocarbon fluids (WHCF) and study their behavior and phase states at high P-T parameters. Simultaneously we experimentally synthesized and grew quartz crystals with inclusions as the major source of information on the behavior and ...... hiện toàn bộ
Metasomatized Xenoliths of Mantle Eclogites and Garnet Pyroxenites from the V. Grib Kimberlite, Arkhangelsk ProvincePetrology - - 2022
N. M. Lebedeva, A. A. Nosova, L. V. Sazonova, Y. O. Larionova
We investigated mantle eclogite and garnet pyroxenite xenoliths from the V. Grib kimberlite located in the Arkhangelsk diamond province. The eclogites in the lithospheric mantle beneath the Arkhangelsk province were strongly modified by metasomatic processes, which totally obliterated the primary features of protolith. Detailed studies of the xenoliths allowed us to distinguish the following metas...... hiện toàn bộ