Abstract
Irregular mare patches (IMPs), recently discovered on the Moon, are eruptions of
magma on the lunar surface, and their origins are still in question. While prior studies
on IMPs have mainly focused on optical image analysis, in this study, an analysis of the
characteristics of minerals is performed exemplary for the first time. Modified Gaussian
model (MGM) deconvolution was applied to the infrared spectrum to confirm the properties
of the mafic mineral. Mafic minerals were analyzed for 6 olivine-rich (Ol-rich) IMPs out
of 91 currently reported, and only 4 of them yielded results of significance. All four
sites showed more abundance of Fe than Mg, and manifested a weak relationship with
Mg-suite rock. However, a problem was discovered during the MGM application process due
to pilot implementation. In order to solve this problem, it is required to adjust the
MGM initial condition settings more precisely and to increase the signal to noise ratio
of the observation data. Moreover, it is necessary to analyze the mineral properties for
all IMPs considering minerals other than Ol and utilize them to deduce the origin of the
IMPs.
Publisher
The Korean Space Science Society
Subject
General Earth and Planetary Sciences,General Physics and Astronomy