Open Access Repository
A Raman microprobe study of melt Inclusions in kimberlites from Siberia, Canada, SW Greenland and South Africa
Downloads
Downloads per month over past year
![]() |
PDF
SpectrochimicaA...pdf | Request a copy Full text restricted Available under University of Tasmania Standard License. |
Abstract
Raman spectroscopy has been used for the identification of both common and uncommon minerals in melt inclusions in Group-I kimberlites from Siberia, Canada, SW Greenland and South Africa. The melt inclusions all contained high abundances of alkali-Ca carbonates, with varying proportions of cations, and Na–Ca–Ba sulphates. In accordance with its dry mineralogy, no hydrated carbonates or sulphates were detected in melt inclusions from the Udachnaya-East kimberlite. In contrast, the melt inclusions in kimberlites from Canada, South Africa and SW Greenland were found to contain bassanite, pirssonite, and hydromagnesite suggesting that greater amounts of water were present in their residual magmas. This suggests that enrichment in alkali carbonates and sulphates is widespread across a range of Group-I kimberlites and implies that they commonly have an alkali-, and sulphur-rich residual liquid.
Item Type: | Article |
---|---|
Authors/Creators: | Mernagh, TP and Kamenetsky, VS and Kamenetsky, MB |
Journal or Publication Title: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
ISSN: | 1386-1425 |
DOI / ID Number: | 10.1016/j.saa.2011.01.034 |
Additional Information: | The definitive version is available at http://www.sciencedirect.com |
Item Statistics: | View statistics for this item |
Actions (login required)
![]() |
Item Control Page |