Research output: Contribution to journal › Article › peer-review
Composition of Hydrocarbons in Diamonds, Garnet, and Olivine from Diamondiferous Peridotites from the Udachnaya Pipe in Yakutia, Russia. / Sobolev, Nikolay V.; Tomilenko, Anatoly A.; Bul'bak, Taras A. et al.
In: Engineering, Vol. 5, No. 3, 01.06.2019, p. 471-478.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Composition of Hydrocarbons in Diamonds, Garnet, and Olivine from Diamondiferous Peridotites from the Udachnaya Pipe in Yakutia, Russia
AU - Sobolev, Nikolay V.
AU - Tomilenko, Anatoly A.
AU - Bul'bak, Taras A.
AU - Logvinova, Alla M.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - Volatile components in diamonds, associated garnet (pyrope), and olivine from two extremely rare xenoliths of diamondiferous peridotites recovered from the Udachnaya kimberlite pipe in Yakutia, Russia, were analyzed by gas chromatography-mass spectrometry (GC-MS) using a Focus GS-DSQ II Series Single Quadrupole MS (Thermo Scientific, USA). These xenoliths are pyrope lherzolite and pyrope dunite based upon compositions of coexisting minerals. Unlike the pyrope lherzolite, which contained pyrope with moderate calcium (Ca)-component content (about 15 mol %), the dunite contained subcalcic chromium (Cr)-pyrope with low Ca-component content (less than 10 mol %). All investigated minerals contained dominating hydrocarbons and their derivatives represented by aliphatic (paraffins, olefins), cyclic (naphthenes, arenes), oxygenated (alcohols, ethers), and heterocyclic (dioxanes, furans) hydrocarbons; nitrogenated, chlorinated, and sulfonated compounds; carbon dioxide (CO 2 ); and water (H 2 O). Total hydrocarbon content was (in rel %) 79.7 for diamonds, 69.1 for garnet, and 92.6 for olivine, with a general amount of components ranging from 161 to 206. New data on volatiles in diamonds, associated garnet, and olivine suggest the presence of a wide spectrum of hydrocarbons along with (nitrogen) N 2 , CO 2 , and H 2 O in some upper mantle areas.
AB - Volatile components in diamonds, associated garnet (pyrope), and olivine from two extremely rare xenoliths of diamondiferous peridotites recovered from the Udachnaya kimberlite pipe in Yakutia, Russia, were analyzed by gas chromatography-mass spectrometry (GC-MS) using a Focus GS-DSQ II Series Single Quadrupole MS (Thermo Scientific, USA). These xenoliths are pyrope lherzolite and pyrope dunite based upon compositions of coexisting minerals. Unlike the pyrope lherzolite, which contained pyrope with moderate calcium (Ca)-component content (about 15 mol %), the dunite contained subcalcic chromium (Cr)-pyrope with low Ca-component content (less than 10 mol %). All investigated minerals contained dominating hydrocarbons and their derivatives represented by aliphatic (paraffins, olefins), cyclic (naphthenes, arenes), oxygenated (alcohols, ethers), and heterocyclic (dioxanes, furans) hydrocarbons; nitrogenated, chlorinated, and sulfonated compounds; carbon dioxide (CO 2 ); and water (H 2 O). Total hydrocarbon content was (in rel %) 79.7 for diamonds, 69.1 for garnet, and 92.6 for olivine, with a general amount of components ranging from 161 to 206. New data on volatiles in diamonds, associated garnet, and olivine suggest the presence of a wide spectrum of hydrocarbons along with (nitrogen) N 2 , CO 2 , and H 2 O in some upper mantle areas.
KW - Diamond
KW - Hydrocarbons
KW - Inclusions
KW - Olivine
KW - Pyrope
KW - Volatiles
KW - CARBON
KW - INCLUSIONS
KW - SUBDUCTION
KW - VOLATILE COMPONENTS
KW - AGES
KW - MANTLE
KW - PHASE-COMPOSITION
KW - FLUID
KW - GPA
KW - KIMBERLITE PIPE
UR - http://www.scopus.com/inward/record.url?scp=85064489534&partnerID=8YFLogxK
U2 - 10.1016/j.eng.2019.03.002
DO - 10.1016/j.eng.2019.03.002
M3 - Article
AN - SCOPUS:85064489534
VL - 5
SP - 471
EP - 478
JO - Engineering
JF - Engineering
SN - 2095-8099
IS - 3
ER -
ID: 19629670