RESEARCH DIRECTED TOWARD THE ELECTRON MICROANALYSIS OF MINERAL PHASES IN CHONDRITE METEORITES.

Abstract

Chemically analyzed standards of olivine, orthopyroxene and clinopyroxene were examined in the AN electron beam microanalyzer to obtain calibration information for the conversion of x-ray intensity to composition. This calibration information was employed to determine the olivine and orthopyroxene (low calcium) compositions of thirty one unequilibrated ordinary chondrites. The chemistry of the olivine, orthopyroxene and clinopyroxene minerals in fourteen equilibrated chondrites of the H, L, and LL groups were determined, and the variation of chemistry within each group was found to be quite small. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1966
Accession Number
AD0647126

Entities

People

  • Donald M. Koffman
  • R. E. Ogilvie

Tags

DTIC Thesaurus Topics

  • Analytical Chemistry
  • Calibration
  • Chemical Analysis
  • Chemistry
  • Conversion
  • Electron Beams
  • Electrons
  • Intensity
  • Meteorites
  • Microanalysis
  • Radiation
  • Standards
  • X Rays

Readers

  • Aviation Safety Risk Assessment.
  • Materials Science and Engineering.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy
  • Microelectronics