(LAC-93) Geologic map of the Mare Humorum region of the moon
January 1, 1967
The principal feature of the Mare Humorum region is the Humorum basin, a circular mare basin approximately 200 km (kilometer) in diameter. The basin formed early in the history of the moon and was later flooded by mare material. Impact cratering with attendant erosion and aggradation and episodic volcanism and faulting have occurred in the region. The inferred history of the Humorum basin is similar to that of the Imbrium basin (Shoemaker and Hackman, 1962; Titley, 1964), but the more subdued topography and the larger density of craters on the rim of the Humorum basin suggest that it is older than the Imbrium basin.
Citation Information
Publication Year | 1967 |
---|---|
Title | (LAC-93) Geologic map of the Mare Humorum region of the moon |
DOI | 10.3133/i495 |
Authors | Spencer Rowe Titley |
Publication Type | Report |
Publication Subtype | USGS Numbered Series |
Series Title | IMAP |
Series Number | 495 |
Index ID | i495 |
Record Source | USGS Publications Warehouse |
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(LAC-93) Geologic map of the Mare Humorum region of the moon
The surface of the moon is heterogeneous. Surface materials are classed on the basis of telescopic observations into units each having a limited range of physical properties such as topography, visible under low-illumination and albedo, the reflectivity under full-Moon illumination. Such units are considered analogous to the rock-stratigraphic formations of terrestrial geology. By...
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(LAC-93) Geologic map of the Mare Humorum region of the moon
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