Sökning: WFRF:(Bilali S) >
980-970 Ma Sette-Da...
980-970 Ma Sette-Daban event of the Siberian craton : new geochronological and geochemical data, relationship to LIP and potential connection with other LIPs
-
- Savelev, Aleksandr D. (författare)
- A.P. Karpinsky Russian Geological Research Institute,Saint Petersburg State University
-
- Khudoley, A. K. (författare)
- Saint Petersburg State University
-
- Malyshev, S. V. (författare)
- Saint Petersburg State University
-
visa fler...
-
Chamberlain, K. R. (författare)
-
- Ernst, R. E. (författare)
- Carleton University
-
- Pazukhina, A. A. (författare)
- Saint Petersburg State University
-
- Prokopiev, A. V. (författare)
- Diamond and Precious Metal Geology Institute of the Siberian Branch Of The Russian Academy Of Sciences
-
- Söderlund, U. (författare)
- Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science
-
- Lebedeva, O. Yu (författare)
- A.P. Karpinsky Russian Geological Research Institute
-
- Bilali, H. El (författare)
- Carleton University
-
Moskalenko, A. N. (författare)
-
visa färre...
-
AP. Karpinsky Russian Geological Research Institute Saint Petersburg State University (creator_code:org_t)
- Engelska.
-
Ingår i: International Geology Review. - 0020-6814.
- Relaterad länk:
-
http://dx.doi.org/10...
-
visa fler...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The paper presents new geological, geochronological, geochemical and Nd-Sr isotopic data on the Meso- Neoproterozoic dolerites of the Siberian Craton. New U-Pb baddeleyite and apatite ages of a E-W-trending dyke and two sills from southeastern Siberia are 982 ± 11, 977 ± 7, 970 ± 31 and 972 ± 60 Ma, respectively, extending the area of distribution of the event by more than 100 km to the north. The Sette-Daban intrusions are subalkalic mostly low-Ti dolerites, although high-Ti dolerites have been locally documented as well. Trace element abundances in dolerites vary from typical to E-MORB to OIB with arc-like signatures represented by high Th/Yb and low TiO2/Yb ratios. All dolerite samples display moderately positive εNd(t) values varying from +3.3 to +7.7 and indicating the magmas were derived from a depleted mantle source. E-MORB and OIB intrusions are attributed to the different degree of interaction of magma between the depleted asthenospheric mantle and regions within the sub-continental lithospheric mantle (SCLM) that were metasomatically enriched during earlier subduction events. Available data on Sette-Daban event distribution, composition and duration satisfy the characteristics of a typical Large Igneous Province (LIP). Similar age 1000–950 Ma mafic magmatism is also recognized in the Baltic and Amazonian cratons and can be potentially correlated with the Sette-Daban event.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Nyckelord
- geochemistry
- large igneous province
- meso-neoproterozoic
- Sette-daban event
- Siberian craton
- U-Pb geochronology
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Savelev, Aleksan ...
-
Khudoley, A. K.
-
Malyshev, S. V.
-
Chamberlain, K. ...
-
Ernst, R. E.
-
Pazukhina, A. A.
-
visa fler...
-
Prokopiev, A. V.
-
Söderlund, U.
-
Lebedeva, O. Yu
-
Bilali, H. El
-
Moskalenko, A. N ...
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Geovetenskap och ...
-
och Geologi
- Artiklar i publikationen
-
International Ge ...
- Av lärosätet
-
Lunds universitet