Relicts of mantle melts in sheared lherzolite xenoliths
from the Udachnaya-Eastern kimberlite pipe (Yakutia)
|
| RMS-DPI code: |
2008-1-61-0 |
 |
| Scientific session: |
Fluids in metamorphic rocks |
|
| Author listing: |
Sharygin I.S., Golovin A.V., Korsakov A.V., Pokhilenko N.P. |
|
| Principal author: |
Sharygin Igor Sergeevich |
|
| Language: |
Russian |
|
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. |
|
|
| Date of presentation: |
23/09/2008 |
|
| Presentation Place: |
IGEM RAS, Conference Hall |
|
|
| RMS-DPI code: |
2008-1-61-0 |
|
Proceeedings volume
in the RMS catalogue: | Proceedings of XIII International conference on thermobarogeochemistry and IVth APIFIS symposium. Volume 1. |
|
| Pages: |
230-233 |
|
File of proceedings
(PDF): |
139 K
|
|
| Status: |
printed |
|
| Recieved: |
14/04/2008 |
|
| Accepted: |
27/06/2008 |
|
| Published on-line: |
13/02/2009 |
|
| Permanent address of publication: |
http://www.minsoc.ru/2008-1-61-0/ |
|
| Contact author(s): |
Sharygin, Igor Sergeevich, Golovin, Alexander Victorovich |
|
minsoc.ru
Presentations
NEW !!! 
minsoc.ru ()