Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
The Compositional Peculiarities of Microinclusions in Diamonds from the Lomonosov Deposit (Arkhangelsk Province). / Kriulina, G. Yu; Iskrina, A. V.; Zedgenizov, D. A. и др.
в: Geochemistry International, Том 57, № 9, 01.09.2019, стр. 973-980.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - The Compositional Peculiarities of Microinclusions in Diamonds from the Lomonosov Deposit (Arkhangelsk Province)
AU - Kriulina, G. Yu
AU - Iskrina, A. V.
AU - Zedgenizov, D. A.
AU - Bobrov, A. V.
AU - Garanin, V. K.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - The data on the composition of microinclusions in diamonds from the Lomonosov deposits are reported for the first time. The studied diamonds include “coated” (n = 5) and cubic (n = 5) crystals. The estimated range of the degree of nitrogen aggregation in diamonds (4–39% B1) does not support their direct links with kimberlite magmatism; however, their short occurrence in the mantle at higher temperatures is probable as well. The composition of melt/fluid microinclusions in these samples varies from essentially carbonatitic to significantly silicate. It is shown that the contents of MgO, CaO, Na2O, Cl, and P2O5 decrease with increasing content of silicates and water. Different mechanisms of the generation and evolution of diamond-forming media are discussed to explain the observed variations.
AB - The data on the composition of microinclusions in diamonds from the Lomonosov deposits are reported for the first time. The studied diamonds include “coated” (n = 5) and cubic (n = 5) crystals. The estimated range of the degree of nitrogen aggregation in diamonds (4–39% B1) does not support their direct links with kimberlite magmatism; however, their short occurrence in the mantle at higher temperatures is probable as well. The composition of melt/fluid microinclusions in these samples varies from essentially carbonatitic to significantly silicate. It is shown that the contents of MgO, CaO, Na2O, Cl, and P2O5 decrease with increasing content of silicates and water. Different mechanisms of the generation and evolution of diamond-forming media are discussed to explain the observed variations.
KW - Arkhangelsk diamond province
KW - diamond
KW - fluid
KW - melt
KW - microinclusions
UR - http://www.scopus.com/inward/record.url?scp=85071519762&partnerID=8YFLogxK
U2 - 10.1134/S0016702919090052
DO - 10.1134/S0016702919090052
M3 - Article
AN - SCOPUS:85071519762
VL - 57
SP - 973
EP - 980
JO - Geochemistry International
JF - Geochemistry International
SN - 0016-7029
IS - 9
ER -
ID: 25481410