Melt inclusions in chromium spinel of kimberlites of the Zapolyarnaya Pipe, Upper Muna Field, Siberian Craton

database, nuove specie, discrediti,
ridefinizioni, classificazioni, ecc.
Rispondi
Avatar utente
Marco E. Ciriotti
Messaggi: 31675
Iscritto il: ven 25 giu, 2004 11:31
Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
Contatta:

Melt inclusions in chromium spinel of kimberlites of the Zapolyarnaya Pipe, Upper Muna Field, Siberian Craton

Messaggio da Marco E. Ciriotti » lun 20 giu, 2022 10:04

Referenza:
▪ Potapov, S.V., Sharygin, I.S., Konstantinov, K.M., Danilov, B.S., Shcherbakov, Yu.D., Letnikov, F.A. (2022): Melt Inclusions in Chromium Spinel of Kimberlites of the Zapolyarnaya Pipe, Upper Muna Field, Siberian Craton. Doklady Earth Sciences, 504, 271–275.

Abstract:
The results of study of primary melt inclusions in сhromium spinel of kimberlites of the middle Paleozoic Zapolyarnaya pipe (Upper Muna field, Siberian Craton) are presented. The inclusions are composed of an aggregate of daughter minerals: calcite, dolomite, nyerereite Na2Ca(CO3)2, gregoryite (Na,K)2CO3, northupite Na3Mg(CO3)2Cl, bradleyite Na3Mg(PO4)(CO3), apatite, chlorides (sylvite and/or halite), phlogopite, olivine, magnetite, and djerfisherite K6(Fe,Cu,Ni)25S26Cl. Carbonates are dominant over silicates. The assemblage of daughter minerals in the inclusions indicates a Si-depleted and alkali- (both Na and K) and CO2-rich, probably, alkali-carbonatitic parental kimberlite melt for the Zapolyarnaya pipe.
Marco E. Ciriotti

«Things are interesting only in so far as they relate themselves to other things»

Rispondi

Chi c’è in linea

Visitano il forum: Nessuno e 58 ospiti