Results 151 to 160 of about 1,083 (190)

Proterozoic basic magmatism of the Siberian Craton: Main stages and their geodynamic interpretation

Geotectonics, 2012
Geological data on the Precambrian basic complexes of the Siberian Craton and their isotopic age are considered. The three main episodes of Precambrian basic magmatism of Siberia correspond to certain stages of the geodynamic evolution of the craton and ...
D P Gladkochub, T V Donskaya, Richard E Ernst   +2 more
exaly   +2 more sources

Proterozoic mafic magmatism in Siberian craton: An overview and implications for paleocontinental reconstruction

Precambrian Research, 2010
We present a summary of late Paleoproterozoic to Neoproterozoic mafic magmatism in the Siberian craton, including recently published U-Pb and Ar-40-Ar-39 dates.
Dmitry P Gladkochub, Sergei A Pisarevsky, T V Donskaya   +2 more
exaly   +2 more sources

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The Siberian lithosphere traverse: mantle terranes and the assembly of the Siberian Craton

Tectonophysics, 1999
Abstract The kimberlite fields scattered across the NE part of the Siberian Craton have been used to map the subcontinental lithospheric mantle (SCLM), as it existed during Devonian to Late Jurassic time, along a 1000-km traverse NE–SW across the Archean Magan and Anabar provinces and into the Proterozoic Olenek Province.
W.L Griffin, C.G Ryan, F.V Kaminsky, Suzanne Y O'Reilly, L.M Natapov, T.T Win, P.D Kinny, I.P Ilupin   +7 more
openaire   +1 more source

The age and history of the lithospheric mantle of the Siberian craton: Re–Os and PGE study of peridotite xenoliths from the Obnazhennaya kimberlite

Earth and Planetary Science Letters, 2015
The formation age of the lithospheric mantle of the Siberian craton (one of the largest on Earth) is not well established; nearly all published whole-rock Re-Os data are for mantle xenoliths from a single kimberlite in the center of the craton (Udachnaya)
Dmitri A Ionov, Richard W Carlson, Luc S Doucet   +2 more
exaly   +2 more sources

Mantle sources of Permian-Triassic Siberian traps (West Siberian Plate and Siberian craton)

Russian Geology and Geophysics, 2008
Abstract We investigate the dynamics of multilevel subcontinental melting beneath a lithosphere of variable thickness as a model simulating generation of melts that produced flood basalt in the Siberian Trap province. The inferred sequence of volcanic events correlates with upper mantle decompression melting above hotspots and related ...
V.N. Sharapov, Yu.V. Perepechko, L.N. Perepechko, I.F. Rakhmenkulova   +3 more
openaire   +1 more source

Detrital zircon record of Meso- and Neoproterozoic sedimentary basins in northern part of the Siberian Craton: Characterizing buried crust of the basement [PDF]

Precambrian Research, 2016
We present new LA ICP-MS detrital zircon data from Meso- and Neoproterozoic sedimentary basins located in the northern and western parts of the Siberian Craton.
Nadezhda Priyatkina, A K Khudoley, W J Collins   +2 more
exaly   +3 more sources

The Siberian Connection: A case for Precambrian separation of the North American and Siberian cratons

Geology, 1978
The hypothesis that the Cordilleran geosyncline originated as an Atlantic-type continental margin by the rifting of an older Precambrian continental mass and the opening of a new ocean basin leads to the question of where the counterpart of the North American Precambrian craton may be.
J. W. Sears, R. A. Price
openaire   +1 more source

Paleomagnetism of the Ulkan trough (Southeastern Siberian Craton)

Russian Journal of Pacific Geology, 2013
The first results of the paleomagnetic study of one of the key Paleoproterozoic objects of the Aldan-Stanovoy Shield (the Ulkan trough) in the Bilyakchan-Ulkan volcanoplutonic belt are presented. The volcanosedimentary rocks of the Elgetei Formation and the granites of the Ulkan Complex were studied.
A. N. Didenko, A. Yu. Peskov, V. A. Guryanov, A. N. Perestoronin, A. V. Kosynkin   +4 more
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Antiquity of peridotitic diamonds from the Siberian craton

Earth and Planetary Science Letters, 1997
Abstract Diamonds erupted by kimberlites traversing ancient continental tectosphere [1] provide a window into the evolution of continents and their mantle keels. However, the vintage of this window; that is, the timing of crystallization of peridotitic mineral inclusion-bearing diamonds beneath different cratons, has proved controversial because of ...
S.H. Richardson, J.W. Harris
openaire   +1 more source

High velocities in the uppermost mantle of the Siberian craton

Tectonophysics, 1996
Abstract Anomalous high seismic velocities (up to 8.8 km/s) have been reported (Suvorov et al., 1985) in the mantle beneath the kimberlite areas of Siberia. High mantle velocities were also observed on some GEON Center profiles, carried out using nuclear explosions (Egorkin et al., 1987).
N.I. Pavlenkova, G.A. Pavlenkova, L.N. Solodilov   +2 more
openaire   +1 more source