Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Sr and Nd isotope composition of deformed peridotite xenoliths from Udachnaya kimberlite pipe. / Surgutanova, E. A.; Agashev, A. M.; Demonterova, E. I. и др.
в: Doklady Earth Sciences, Том 471, № 1, 01.11.2016, стр. 1204-1207.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Sr and Nd isotope composition of deformed peridotite xenoliths from Udachnaya kimberlite pipe
AU - Surgutanova, E. A.
AU - Agashev, A. M.
AU - Demonterova, E. I.
AU - Golovin, A. V.
AU - Pokhilenko, N. P.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - New results of Rb–Sr and Sm–Nd isotope analyses have been obtained on samples of deformed peridotite xenoliths collected from the Udachnaya kimberlite pipe (Yakutia). The data obtained imply two main stages of metasomatic alteration of the lithospheric mantle base matter in the central part of the Siberian Craton. Elevated ratios of Sr isotopes may be considered as evidence of an ancient stage of metasomatic enrichment by a carbonatite melt. The acquired Nd isotope composition together with the geochemistry of the deformed peridotite xenoliths suggests that the second stage of metasomatic alteration took place shortly before formation of the kimberlite melt. The metasomatic agent of this stage had a silicate character and arrived from an asthenosphere source, common for the normal OIB type (PREMA) and the Group-I kimberlite.
AB - New results of Rb–Sr and Sm–Nd isotope analyses have been obtained on samples of deformed peridotite xenoliths collected from the Udachnaya kimberlite pipe (Yakutia). The data obtained imply two main stages of metasomatic alteration of the lithospheric mantle base matter in the central part of the Siberian Craton. Elevated ratios of Sr isotopes may be considered as evidence of an ancient stage of metasomatic enrichment by a carbonatite melt. The acquired Nd isotope composition together with the geochemistry of the deformed peridotite xenoliths suggests that the second stage of metasomatic alteration took place shortly before formation of the kimberlite melt. The metasomatic agent of this stage had a silicate character and arrived from an asthenosphere source, common for the normal OIB type (PREMA) and the Group-I kimberlite.
UR - http://www.scopus.com/inward/record.url?scp=84999751685&partnerID=8YFLogxK
U2 - 10.1134/S1028334X16110258
DO - 10.1134/S1028334X16110258
M3 - Article
AN - SCOPUS:84999751685
VL - 471
SP - 1204
EP - 1207
JO - Doklady Earth Sciences
JF - Doklady Earth Sciences
SN - 1028-334X
IS - 1
ER -
ID: 25755449