Quantitative Characterization of Lunar Mare Orientale Basalts Detected by Moon Mineralogical Mapper on Chandrayaan-1 - Planetary Exploration and Science: Recent Results and Advances - page 30

Fig. 2.4 TiO 2 wt % of ( a ). Mare Orientale, ( b ) Lacus Veris and ( c ) Lacus Autumni

intermediate-TiO 2 concentration. TiO 2 analysis of the center portion of the Lacus
Veris indicates that, the region is dominated by the medium-Ti basalts in the range
of <6 wt%. This is shown in Fig. 2.4b .
The Lacus Autumni also bears the medium-Ti basalts which concentration range
is <6wt%.TheTiO 2 wt% of the Lacus Autumni is shown in Fig. 2.4c .The
dominant basaltic region bears TiO 2 concentration range between 2-3 wt%. The
variation of the Ti content observed in the spectral profile of the Lacus Autumni
doesn't exceed 6 %.

2.3.1.4 Spectral Mixing and End-Member Selection

Manned and unmanned missions to the Moon have returned about 382 kg of
lunar rocks and soils (Vaniman et al. 1991 ). These were collected from the lunar
nearside's typical region, within and around the Procellarum KREEP Terrane
(PKT) (Jolliff et al. 2000 ), or from equatorial latitudes on the eastern limb.
Linear spectral mixture analysis can be used to model the spectral variability in
multispectral or hyperspectral images and to establish the relation of its results
and the physical abundance of surface constituents represented by the spectral