Lunar domes
Taken by Raffaello Lena on March 24, 2019 @
Rome Italy
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Date Taken: 2019:03:24 18:18:41
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Details:
Fecunditatis is a pre-Nectarian impact basin which was filled by ejecta material from neighbouring younger basins, Nectaris (the oldest), Crisium, and Imbrium (youngest), ranging in age from 3.7-3.5 billion years (Ga) to 3.4 billion years (Ga) in the late Imbrium period. Most of Mare Fecunditatis is filled with lavas that reach thicknesses of a few hundred metres.
In previous studies have beenexamine two domes in Mare Fecunditatis, named Messier 1 and 2 (Me1 and Me2), respectively. During the observing session i made on March 24 2019 i imaged the region near Messier including a ghost crater to the east.
Identified further three domes near Messier crater, here termed Me3-Me5, which are under study using the LRO WAC imagery.
Lunar domes with their typically low flank slopes display a significant contrast with respect to the surrounding surface only when the solar elevation angle is lower than 4–5°. These volcanic constructs formed during the later stages of volcanic episode on the Moon, characterized by a decreasing rate of lava extrusion and a comparably low eruption temperature, resulting in the formation of effusive domes.
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