Results 31 to 40 of about 3,591 (216)

Thermobarometry of diamond inclusions: Mantle structure and evolution beneath Archean cratons and mobile belts worldwide

open access: yesGeosystems and Geoenvironment, 2023
Thermobarometric calculations for mineral inclusions in diamonds provide a systematic comparison of P-T-fO2 conditions for different cratons and mobile belts worldwide, using a database of 4440 mineral EPMA analyses.
Igor Ashchepkov   +3 more
doaj   +1 more source

Crustal structure of the Siberian craton and the West Siberian basin: An appraisal of existing seismic data [PDF]

open access: yesTectonophysics, 2013
AbstractWe present a digital model SibCrust of the crustal structure of the Siberian craton (SC) and the West Siberian basin (WSB), based on all seismic profiles published since 1960 and sampled with a nominal interval of 50km. Data quality is assessed and quantitatively assigned to each profile based on acquisition and interpretation method and ...
Cherepanova, Yulia   +3 more
openaire   +2 more sources

LATE CENOZOIC VOLCANISM OF THE UDA RIVER AREA (EASTERN SAYAN, SIBERIA): THE FIRST GEOCHEMICAL AND ISOTOPIC DATA

open access: yesГеодинамика и тектонофизика, 2017
Volcanic eruptions within the Baikal rift of predominantly basaltic composition belong to numerous small-volume eruptions, which took place in Cenozoic in Central Asia.
E. I. Demonterova   +2 more
doaj   +1 more source

Provenance, Age, and Tectonic Settings of Rock Complexes (Transangarian Yenisey Ridge, East Siberia): Geochemical and Geochronological Evidence

open access: yesGeosciences, 2022
The tectonic evolution of the Siberian Cratonic margins offers important clues for global paleogeographic reconstructions, particularly with regard to the complex geological history of Central Asia and Precambrian supercontinents Columbia/Nuna and ...
Igor I. Likhanov
doaj   +1 more source

PALEOARCHEAN MAFIC ROCKS OF THE SOUTHWESTERN SIBERIAN CRATON: PRELIMINARY GEOCHRONOLOGY AND GEOCHEMICAL CHARACTERIZATION

open access: yesГеодинамика и тектонофизика, 2017
The Siberian craton consists of Archean blocks, which were welded up into the same large unit by ca 1.9 Ga [Gladkochub et al., 2006; Rojas-Agramonte et al., 2011].
A. V. Ivanov   +4 more
doaj   +1 more source

THE DEEP STRUCTURE AND PALEOGEODYNAMICS OF SIBERIA AND CENTRAL ASIA IN STUDIES OF THE INSTITUTE OF THE EARTH’S CRUST, SB RAS (2009–2013)

open access: yesГеодинамика и тектонофизика, 2015
The deep structure and paleogeodynamics of the Siberian craton and the Central Asian folded belt are studied by two specialized laboratories of the Institute of the Earth’s Crust, SB RAS – the Laboratory of Complex Geophysics and the Laboratory of ...
D. P. Gladkochub, E. Kh. Turutanov
doaj   +1 more source

AGE CONSTRAINTS AND SOURCE AREAS FOR THE PRECAMBRIAN TO CAMBRIAN STRATA OF THE SOUTHERN YENISEI RIDGE (REDKOLESNAYA AND OSTROVNOY FORMATIONS)

open access: yesГеодинамика и тектонофизика, 2023
The Precambrian to Cambrian strata at the southwestern margin of the Siberian Platform are ubiquitously characterized by a gradual transition from red-colored alluvial and deltaic deposits to shallow-marine carbonates, reflecting a transgressive infill ...
V. V. Marusin   +3 more
doaj   +1 more source

The SPICE carbon isotope excursion in Siberia: A combined study of the upper Middle Cambrianlowermost Ordovician Kulyumbe River section, northwestern Siberian Platform [PDF]

open access: yes, 2008
An integrated, high-resolution chemostratigraphic (C, O and Sr isotopes) and magnetostratigraphic study through the upper Middle Cambrian–lowermost Ordovician shallowmarine carbonates of the northwestern margin of the Siberian Platform is reported. The
Kouchinsky, Artem
core   +3 more sources

NEW DATA ON AGE AND NATURE OF CARBONIZATION WITHIN SOUTHERN FLANK OF THE BAIKAL LEDGE OF THE SIBERIAN CRATON BASEMENT

open access: yesГеодинамика и тектонофизика, 2017
The Baikal ledge rock formations in the Siberian craton structure are included in the Akitkan mobile belt which is considered as the Late Paleoproterozoic independent island arc system moved up to the ancient basement during the terrains amalgamation 1 ...
Yu. V. Danilova   +5 more
doaj   +1 more source

The Origin of Low-Mgo Eclogite Xenoliths from Obnazhennaya Kimberlite, Siberian Craton [PDF]

open access: yesGoldschmidt Abstracts, 2020
The petrology, mineral major and trace-element concentrations, and garnet oxygen isotopic composition of low-MgO (11–16 wt%) eclogites from the Obnazhennaya kimberlite, Siberian craton, are used to infer their petrogenesis. These eclogites contain two types of compositionally distinct garnet: granular coarse garnet, and garnet exsolution (lamellae and ...
Sun, Jing   +6 more
openaire   +4 more sources

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