Partitioning of Ni between olivine and silicate melt: The `Henry's Law problem' reexamined

Details Partitioning of Ni between olivine and silicate melt: The `Henry's Law problem' reexamined Partitioning of Ni between olivine and silicate melt: The `Henry's Law problem' reexamined

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981gecoa..45..431d&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 45, Issue 3, pp.431-437

Computer Science

7

Scientific paper

The partitioning of Ni between olivine and silicate melt has been investigated experimentally at atmospheric pressure in air. Beta track autoradiography using 63 Ni and direct microprobe analysis of polished run products were employed. At constant temperature and bulk composition, the olivine / liquid partition coefficient for Ni in the system Di 70 Fo 25 Qtz 5 remains independent of concentration from approximately 10 ppm to 40,000 ppm Ni in olivine. Similar experiments by (1979) in the system Jd 80 Fo 20 utilizing beta track autoradiography alone indicated that Henry's Law was followed only in the concentration interval of approx. 10-1000 ppm Ni in olivine. Above 1000 ppm, olivine/liquid partition coefficients decreased monotonically to about half of the value observed below 1000 ppm. We have performed experiments in the system Jd 80 Fo 20 , but are unable to replicate Mysen's results. While in agreement with Mysen below 1000 ppm Ni in olivine, we do not observe the decrease in partition coefficient value at higher concentrations. We conclude from our reversed experiments that, at constant temperature and bulk composition, the olivine / liquid partition coefficient for Ni in the system Jd 80 Fo 20 remains independent of concentration from approx. 10-60,000 ppm Ni in olivine. Attempts to resolve these differing conclusions by changing experimental techniques have been unsuccessful.

Affiliated with

Also associated with

No associations

Rating

Partitioning of Ni between olivine and silicate melt: The `Henry's Law problem' reexamined 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 Partitioning of Ni between olivine and silicate melt: The `Henry's Law problem' reexamined, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Partitioning of Ni between olivine and silicate melt: The `Henry's Law problem' reexamined will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1790588