The distribution of olivine in the crater Aristarchus inferred from Clementine NIR data

Research areas:
Year:
1999
Authors:
Journal:
GEOPHYSICAL RESEARCH LETTERS
Volume:
26
Number:
9
Pages:
1195-1198
Month:
MAY 1
ISSN:
0094-8276
BibTex:
Abstract:
Clementine imaged the Moon entirely at eleven wavelengths. This paper
presents new results obtained on the crater Aristarchus using a
heuristic method for the calibration of the near infrared (NIR) data
set. We computed band ratios and we extracted spectra using a telescopic
spectrum as reference. A new similar to 4x10 km olivine rich area has
been identified on the southeastern rim of the crater, in addition to a
smaller olivine rich area previously reported. The olivine to pyroxene
ratio exceeds 6 in this new zone. This demonstrates the uniqueness of
the Clementine Nm data set in discriminating olivine from pyroxene on
the lunar surface, with implications for magmatic processes in the lunar
mantle and crust.