NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Experimental Determination of Spinel/Melt, Olivine/Melt, and Pyroxene/Melt Partition Coefficients for Re, Ru, Pd, Au, and PtExperimental studies have identified spinels as important hosts phases for many of the highly siderophile elements (HSE). Yet experimental studies involving chromite or Cr-rich spinel have been lacking. Experimental studies of partitioning of HSEs between silicate, oxides and silicate melt are plagued by low solubilities and the presence of small metallic nuggets at oxygen fugacities relevant to magmas, which interfere with analysis of the phases of interest. We have circumvented these problems in two ways: 1) performing experiments at oxidized conditions, which are still relevant to natural systems but in which nuggets are not observed, and 2) analysis of run products with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), allowing a combination of high sensitivity and good spatial resolution.
Document ID
20030111369
Document Type
Conference Paper
Authors
Righter, K. (NASA Johnson Space Center Houston, TX, United States)
Campbell, A. J. (Chicago Univ. Chicago, IL, United States)
Humayun, M. (Chicago Univ. Chicago, IL, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Lunar and Planetary Science XXXIV
Subject Category
Chemistry and Materials (General)
Report/Patent Number
JSC-CN-7728
Funding Number(s)
CONTRACT_GRANT: NAG5-9435
CONTRACT_GRANT: NSF EAR-00-74036
Distribution Limits
Public
Copyright
Public Use Permitted.

Related Records

IDRelationTitle20030110578Analytic PrimaryLunar and Planetary Science XXXIV
Document Inquiry