Selenology Today # 7 July 2007 - Home

GEOLOGIC LUNAR RESEARCH SELENOLOGY TODAY # 7
The 2 nd and 4 th derivative curves show possible minor unsuspected troughs.
3. Aristarchus
Figure 1-10a
Average of 8 pixel rows plotted
The plot of Aristarchus in Figure 1-10a shows a typical high calcium pyroxene trough
near 1000 nm which is consistent with gabbro. The walls of Aristarchus are known to
contain significant amounts of gabbro and this is the likely source of the observed
spectral trough. Figures 1-10b and 1-10c below show the spline smoothed curve-fit to
the Aristarchus reflectance/continuum data and the 1 st derivative spectra respectively.
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