40Ar39Ar laser probe dating of individual clinopyroxene inclusions in Premier eclogitic diamonds

R. Burgess*, G. Turner, M. Laurenzi, J. W. Harris

*Corresponding author for this work

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The ages of seven individual clinopyroxene inclusions in Premier diamonds of eclogitic association have been determined using the 40Ar39Ar dating technique. Syngenetic inclusions weighing between 10 and 130 μg were exposed on cleaved surfaces of the diamonds and analysed using a laser probe. The inclusion ages were found to be in the range 1111 ± 35 to 1254 ± 38 Ma with an average of 1185 ± 94 Ma. The ages obtained are in good agreement with previous determinations made on aggregates of eclogitic inclusions from Premier diamonds and demonstrate the applicability of the laser probe to dating individual diamond inclusions.

Original languageEnglish
Pages (from-to)22-28
Number of pages7
JournalEarth and Planetary Science Letters
Volume94
Issue number1-2
DOIs
Publication statusPublished - 1989
Externally publishedYes

    Fingerprint

Cite this