Data obtained from the MESSENGER mission reasons why Mercury lacks hollows. Could it be sulfides? Or is it graphite?
A “surface-space-environment-geochemistry-and-ranging” probe- as part of the MESSENGER mission- has resulted in the discovery of hollows onHollows are irregularly shaped shallow depressions that have halos and interiors with high reflectance and are uncommon in the smooth plains of Mercury.reveals the detection of these geological landforms by multispectral images and geochemical measurements and how they were formed.
The team then compared laboratory spectra to Mercury’s spectra by considering the spectrum of materials obtained from the floor of the crater as the basis for spectral modeling. Although a good match between chlorides and a notable match with labradorite were seen, these were less than that of sulfides which appeared to be best suited to reproduce the curvature of hollow spectra.
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