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Nd-Sr-Os systems of eclogites in the lithospheric mantle of the Kasai Craton (Angola). / Nikitina, L. P.; Krymsky, R. Sh; Belyatsky, B. V.; Korolev, N. M.; Zinchenko, V. N.

In: Russian Geology and Geophysics, Vol. 58, No. 11, 01.11.2017, p. 1305-1316.

Research output: Contribution to journal › Article › peer-review

Harvard

Nikitina, LP, Krymsky, RS, Belyatsky, BV, Korolev, NM & Zinchenko, VN 2017, 'Nd-Sr-Os systems of eclogites in the lithospheric mantle of the Kasai Craton (Angola)', Russian Geology and Geophysics, vol. 58, no. 11, pp. 1305-1316. https://doi.org/10.1016/j.rgg.2016.12.013

APA

Nikitina, L. P., Krymsky, R. S., Belyatsky, B. V., Korolev, N. M., & Zinchenko, V. N. (2017). Nd-Sr-Os systems of eclogites in the lithospheric mantle of the Kasai Craton (Angola). Russian Geology and Geophysics, 58(11), 1305-1316. https://doi.org/10.1016/j.rgg.2016.12.013

Vancouver

Nikitina LP, Krymsky RS, Belyatsky BV, Korolev NM, Zinchenko VN. Nd-Sr-Os systems of eclogites in the lithospheric mantle of the Kasai Craton (Angola). Russian Geology and Geophysics. 2017 Nov 1;58(11):1305-1316. https://doi.org/10.1016/j.rgg.2016.12.013

Author

Nikitina, L. P. ; Krymsky, R. Sh ; Belyatsky, B. V. ; Korolev, N. M. ; Zinchenko, V. N. / Nd-Sr-Os systems of eclogites in the lithospheric mantle of the Kasai Craton (Angola). In: Russian Geology and Geophysics. 2017 ; Vol. 58, No. 11. pp. 1305-1316.

BibTeX

@article{5009cbb0df644cdeb94e7dbd4ce61902,
title = "Nd-Sr-Os systems of eclogites in the lithospheric mantle of the Kasai Craton (Angola)",
abstract = "We studied the Sm-Nd, Rb-Sr, and Re-Os isotope compositions of mantle xenoliths (eclogites and peridotites) from diamondiferous kimberlites of the Catoca cluster of the Kasai Craton. In the eclogites, the primary strontium isotope composition 87Sr/86Sr varies from 0.7056 to 0.7071, and the neodymium isotope composition eNd, from 1.8 to 2.6. The 187Re/188Os and 187Os/188Os ratios range from 135 to 80 and from 1.3110 to 1.9709, respectively, which indicates a significant portion of radiogenic Os: yOs = 129-147. These isotope values exceed the values assumed for model reservoirs (primitive upper mantle (PUM) and bulk silicate Earth (BSE)) and those of chondrites. The isotope composition of the studied systems indicates the formation of eclogites from a rhenium-enriched source, namely, the subducted oceanic crust transformed as a result of metasomatism and/or melting under upper-mantle conditions.",
keywords = "eclogites, genesis, model isotopic age, Nd-Sr-Os system, upper mantle",
author = "Nikitina, {L. P.} and Krymsky, {R. Sh} and Belyatsky, {B. V.} and Korolev, {N. M.} and Zinchenko, {V. N.}",
year = "2017",
month = nov,
day = "1",
doi = "10.1016/j.rgg.2016.12.013",
language = "English",
volume = "58",
pages = "1305--1316",
journal = "Russian Geology and Geophysics",
issn = "1068-7971",
publisher = "Elsevier",
number = "11",

}

RIS

TY - JOUR

T1 - Nd-Sr-Os systems of eclogites in the lithospheric mantle of the Kasai Craton (Angola)

AU - Nikitina, L. P.

AU - Krymsky, R. Sh

AU - Belyatsky, B. V.

AU - Korolev, N. M.

AU - Zinchenko, V. N.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - We studied the Sm-Nd, Rb-Sr, and Re-Os isotope compositions of mantle xenoliths (eclogites and peridotites) from diamondiferous kimberlites of the Catoca cluster of the Kasai Craton. In the eclogites, the primary strontium isotope composition 87Sr/86Sr varies from 0.7056 to 0.7071, and the neodymium isotope composition eNd, from 1.8 to 2.6. The 187Re/188Os and 187Os/188Os ratios range from 135 to 80 and from 1.3110 to 1.9709, respectively, which indicates a significant portion of radiogenic Os: yOs = 129-147. These isotope values exceed the values assumed for model reservoirs (primitive upper mantle (PUM) and bulk silicate Earth (BSE)) and those of chondrites. The isotope composition of the studied systems indicates the formation of eclogites from a rhenium-enriched source, namely, the subducted oceanic crust transformed as a result of metasomatism and/or melting under upper-mantle conditions.

AB - We studied the Sm-Nd, Rb-Sr, and Re-Os isotope compositions of mantle xenoliths (eclogites and peridotites) from diamondiferous kimberlites of the Catoca cluster of the Kasai Craton. In the eclogites, the primary strontium isotope composition 87Sr/86Sr varies from 0.7056 to 0.7071, and the neodymium isotope composition eNd, from 1.8 to 2.6. The 187Re/188Os and 187Os/188Os ratios range from 135 to 80 and from 1.3110 to 1.9709, respectively, which indicates a significant portion of radiogenic Os: yOs = 129-147. These isotope values exceed the values assumed for model reservoirs (primitive upper mantle (PUM) and bulk silicate Earth (BSE)) and those of chondrites. The isotope composition of the studied systems indicates the formation of eclogites from a rhenium-enriched source, namely, the subducted oceanic crust transformed as a result of metasomatism and/or melting under upper-mantle conditions.

KW - eclogites

KW - genesis

KW - model isotopic age

KW - Nd-Sr-Os system

KW - upper mantle

UR - http://www.scopus.com/inward/record.url?scp=85037627926&partnerID=8YFLogxK

U2 - 10.1016/j.rgg.2016.12.013

DO - 10.1016/j.rgg.2016.12.013

M3 - Article

AN - SCOPUS:85037627926

VL - 58

SP - 1305

EP - 1316

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 11

ER -

ID: 36110045