Relicts of mantle melts in sheared lherzolite xenoliths
from the Udachnaya-Eastern kimberlite pipe (Yakutia)
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RMS-DPI code: |
2008-1-61-0 |
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Scientific session: |
Fluids in metamorphic rocks |
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Author listing: |
Sharygin I.S., Golovin A.V., Korsakov A.V., Pokhilenko N.P. |
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Principal author: |
Sharygin Igor Sergeevich |
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Language: |
Russian |
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Abstract - Summary (short description): | |
Investigation of sheared garnet lherzolite xenoliths in unaltered kimberlites from the Udachnaya-Eastern pipe indicates that these xenoliths have compound composition: primary mineral assemblage + melt pockets + secondary melt inclusions in primary minerals. There were two types of melt inclusion determined. The first one is presented in all primary minerals. They consist of fluid bubble + fine crystalline aggregates + transparent crystalline phases (silicates, carbonates, sulfates, chlorides) + ore phases (magnetite, sulphides). The second one was discovered only in ortopyroxene. They consist of fluid bubble and transparent crystalline phases (calcite and/or gregoryite). Unusual composition of melt inclusion point to unexpectedly high concentration of alkalies, carbon, chlorine and sulfur in some deep mantle melts or there derivates. |
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Date of presentation: |
23/09/2008 |
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Presentation Place: |
IGEM RAS, Conference Hall |
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RMS-DPI code: |
2008-1-61-0 |
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Proceeedings volume in the RMS catalogue: | Proceedings of XIII International conference on thermobarogeochemistry and IVth APIFIS symposium. Volume 1. |
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Pages: |
230-233 |
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File of proceedings (PDF): |
139 K
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Status: |
printed |
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Recieved: |
14/04/2008 |
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Accepted: |
27/06/2008 |
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Published on-line: |
13/02/2009 |
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Permanent address of publication: |
http://www.minsoc.ru/2008-1-61-0/ |
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Contact author(s): |
Sharygin, Igor Sergeevich, Golovin, Alexander Victorovich |
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