PT  - JOURNAL ARTICLE
AU  - PIETERS, CARLE M.
TI  - Copernicus Crater Central Peak: Lunar Mountain of Unique Composition
AID  - 10.1126/science.215.4528.59
DP  - 1982 Jan 01
TA  - Science
PG  - 59--61
VI  - 215
IP  - 4528
4099  - http://science.sciencemag.org/content/215/4528/59.short
4100  - http://science.sciencemag.org/content/215/4528/59.full
SO  - Science1982 Jan 01; 215
AB  - Olivine is identified as the major mafic mineral in a central peak of Copernicus crater. Information on the mineral assemblages of such unsampled lunar surface material is provided by near infrared reflectance spectra (0.7 to 2.5 micrometers) obtained with Earth-based telescopes. The composition of the deep-seated material comprising the Copernicus central peak is unique among measured areas. Other lunar terra areas and the wall of Copernicus exhibit spectral characteristics of mineral assemblages comparable to the feldspathic breccias returned by the Apollo missions, with low-calcium orthopyroxene being the major mafic mineral.