OS ISOTOPIC COMPOSITION OF THE EARTHS PRIMITIVE UPPER-MANTLE

Authors
SUN WD ZHI XC PENG ZC WANG ZR GE NJ ZHOU XH
Citation
Wd. Sun et al., OS ISOTOPIC COMPOSITION OF THE EARTHS PRIMITIVE UPPER-MANTLE, Chinese Science Bulletin, 43(18), 1998, pp. 1575-1579
Citations number
16
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Chinese Science Bulletin → ACNP
ISSN journal
10016538
Volume
43
Issue
18
Year of publication
1998
Pages
1575 - 1579
Database
ISI
SICI code
1001-6538(1998)43:18<1575:OICOTE>2.0.ZU;2-L
Abstract
The osmium isotopic ratio of Os-187/Os-188 ranging from 0.126 to 0.127 for the primitive upper mantle (PUM) is obtained according to the cor relation between Os-187/Os-188 and Al2O3 of mantle-derived xenoliths a nd orogenic peridotites, which consists with Allegre and Luck's ALM va lue and similar to Yin's nuggets uniform reservoir (NUR) value. It sho ws that the Os isotope ratio is lower than enstatite or ondinary chond rites, similar to carbonaceous chondrites (CV3).