Computer Science
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988gecoa..52.2867m&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 52, Dec. 1988, p. 2867-2870. Research supported by NSERC and Lakehead Uni
Computer Science
3
Abundance, Earth Mantle, Gallium, Garnets, Spinel, Earth Core, Meteoritic Composition, Neutron Activation Analysis
Scientific paper
The abundance and distribution of the moderately siderophile element gallium has been determined by radiochemical neutron activation analysis in spinel lherzolites from Mt. Porndon (Australia) and garnet lherzolites from Bultfontein (S. Africa). Minerals in the lherzolite concentrate Ga in the sequence olivine- orthopyroxene-clinopyroxene-garnet-spinel. Whole rock Ga abundances calculated from the modal mineralogy are equal to those actually determined, thus demonstrating that intergranular Ga-bearing phases are unimportant. Spinel lherzolites are richer in Ga than garnet lherzolites. Revised values for the Ga content of the mantle and garnet lherzolite-based pyrolite suggest that previous estimates are too high. The Ga content of the mantle may have been controlled by equilibrium core-mantle separation and does not require the presence of a meteoritic component.
McKay Douglas B.
Mitchell Roger H.
No associations
LandOfFree
Abundance and distribution of gallium in some spinel and garnet lherzolites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Abundance and distribution of gallium in some spinel and garnet lherzolites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abundance and distribution of gallium in some spinel and garnet lherzolites will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1756778