Automated HASP glass search using the electron microprobe

Details Automated HASP glass search using the electron microprobe Automated HASP glass search using the electron microprobe

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28....5a&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. ..5.

Computer Science

Lunar Probes, Glass, Aluminum, Electron Probes, Lunar Composition, Silicon Dioxide, Automation, Apollo 14 Flight

Scientific paper

Using an automated electron microprobe analysis technique, we have located and measured high-aluminum, silica-poor (HASP) glasses in a suite of lunar samples previously analyzed by Vaniman (1990). The automated EMP technique determines the location of possible lunar HASP glasses in thin sections using criteria based on size, backscattered electron intensity, and weight percent of Si and Al by energy dispersive spectroscopy. Once located, the possible HASP glasses are revisited and analyzed by WDS to determine if the glasses meet the criteria to be classified as HASP glasses. The automated package located HASP glasses both previously identified and unidentified in five Apollo 14 thin sections. HASP beads identified by this process were then analyzed by SIMS. The automated technique allows for thin sections to be scanned for specific features quickly and without constant supervision.

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