Results 21 to 30 of about 262 (125)

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

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

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

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

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

SOUTHEASTERN MARGIN OF THE SIBERIAN CRATON – DEEP STRUCTURE AND LATE MESOZOIC GEODYNAMICS

open access: yesГеодинамика и тектонофизика
The 3-DV seismic profile data interpretation was used to obtain a geodynamic model for the deep structure of the southeastern margin of the Siberian craton and the South Verkhoyansk sector of the Verkhoyansk fold and thrust belt (VFTB).
L. V. Kungurtsev   +2 more
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

PETROGENESIS AND STRUCTURAL POSITION OF THE EARLY PROTEROZOIC CHARNOCKITES OF THE TATARNIKOVSKY MASSIF IN THE SOUTH SIBERIAN POST-COLLISIONAL MAGMATIC BELT OF THE SIBERIAN CRATON

open access: yesГеодинамика и тектонофизика, 2018
The article reports on the geological, mineralogical, geochemical and isotope-geochemical studies of granitoids (charnockites) from the Tatarnikovsky massif located in the northern part of the Baikal uplift of the Siberian craton basement. The age of the
T. V. Donskaya   +2 more
doaj   +1 more source

Kyanite-bearing eclogite xenoliths from the Udachnaya kimberlite, Siberian craton, Russia [PDF]

open access: yesBSGF - Earth Sciences Bulletin, 2017
Xenoliths brought up by kimberlite magmas are rare samples of otherwise inaccessible lithospheric mantle. Eclogite xenoliths are found in most cratons and commonly show a range of mineral and chemical compositions that can be used to better understand ...
Radu Ioana-Bogdana   +6 more
doaj   +1 more source

CO-EVOLUTION OF PROTEROZOIC CRATONIC FRAGMENTS IN WESTERN AND NORTHERN MONGOLIA

open access: yesГеодинамика и тектонофизика, 2017
CAOB occupies a vast area that extends from the Urals to the Far East Asia and from the Siberian craton to the North China and Tarim cratons (Fig. 1, A).
Uyanga Bold   +2 more
doaj   +1 more source

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