Research output: Contribution to journal › Article › peer-review
Mineralogy of secondary olivine-hosted inclusions in calcite carbonatites of the Belaya Zima alkaline complex, Eastern Sayan, Russia : Evidence for late-magmatic Na-Ca-rich carbonate composition. / Sharygin, Victor V.; Doroshkevich, Anna G.
In: Journal of the Geological Society of India, Vol. 90, No. 5, 01.11.2017, p. 524-530.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Mineralogy of secondary olivine-hosted inclusions in calcite carbonatites of the Belaya Zima alkaline complex, Eastern Sayan, Russia
T2 - Evidence for late-magmatic Na-Ca-rich carbonate composition
AU - Sharygin, Victor V.
AU - Doroshkevich, Anna G.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Secondary multiphase inclusions were studied in olivine from olivine-pyrochlore varieties of calcite carbonatites of the Belaya Zima alkaline complex, Eastern Sayan, Siberia, Russia. The inclusions form trails cross-cutting the host olivine. Their composition varies from carbonate to silicate-carbonate species. Multiphase silicate-carbonate inclusions contain Na-Ca-carbonates (shortite, nyerereite), Na-Mg-carbonates (northupite, eitelite, bradleyite), common carbonates (calcite, dolomite), Ba-Sr-rich carbonates (olekminskite, burbankite, strontianite), tetraferriphlogopite, magnetite, humite-clinohumite and other mineral phases. Na-Ca-carbonates, tetraferriphlogopite, humiteclinohumite and magnetite are omnipresent and dominant phases within the inclusions. The phase composition of secondary olivinehosted inclusions seems to reflect evolutionary features for the Belaya Zima carbonatites at their late stages of formation. During crystallization calciocarbonatite melt gradually evolved toward enrichment in alkalis (mainly, in sodium) and volatile components (Cl, F and H2O).
AB - Secondary multiphase inclusions were studied in olivine from olivine-pyrochlore varieties of calcite carbonatites of the Belaya Zima alkaline complex, Eastern Sayan, Siberia, Russia. The inclusions form trails cross-cutting the host olivine. Their composition varies from carbonate to silicate-carbonate species. Multiphase silicate-carbonate inclusions contain Na-Ca-carbonates (shortite, nyerereite), Na-Mg-carbonates (northupite, eitelite, bradleyite), common carbonates (calcite, dolomite), Ba-Sr-rich carbonates (olekminskite, burbankite, strontianite), tetraferriphlogopite, magnetite, humite-clinohumite and other mineral phases. Na-Ca-carbonates, tetraferriphlogopite, humiteclinohumite and magnetite are omnipresent and dominant phases within the inclusions. The phase composition of secondary olivinehosted inclusions seems to reflect evolutionary features for the Belaya Zima carbonatites at their late stages of formation. During crystallization calciocarbonatite melt gradually evolved toward enrichment in alkalis (mainly, in sodium) and volatile components (Cl, F and H2O).
UR - http://www.scopus.com/inward/record.url?scp=85036563577&partnerID=8YFLogxK
U2 - 10.1007/s12594-017-0748-y
DO - 10.1007/s12594-017-0748-y
M3 - Article
AN - SCOPUS:85036563577
VL - 90
SP - 524
EP - 530
JO - Journal of the Geological Society of India
JF - Journal of the Geological Society of India
SN - 0016-7622
IS - 5
ER -
ID: 12670829