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Geologic map of the Fracastorius Quadrangle of the Moon Geologic map of the Fracastorius Quadrangle of the Moon
The multi-ringed Nectaris basin (Hartmann and Kuiper, 1962) dominates the Fracastorius quadrangle. The basin is 840 km across as measured from the outermost ring and lies athwart four quadrangles. Fracastorius, the southeastern quadrangle, straddles the three rings of the basin (fig. 1). In this quadrangle most pre-Imbrian structures and many depositions were formed by the Nectaris...
Geologic map of the Hommel quadrangle of the Moon Geologic map of the Hommel quadrangle of the Moon
The Hommel quadrangle is in the southeast highlands of the earthside hemisphere of the Moon. The major geologic units are smooth and ridged terra materials, plains-forming materials, and crater materials. Mare material is absent. In the absence of extensive stratigraphic datum horizons, the geologic units were tentatively correlated with type areas of the lunar geologic system (Shoemaker...
Geologic map of the Macrobius Quadrangle of the Moon Geologic map of the Macrobius Quadrangle of the Moon
The Macrobius quadrangle is in the northeast quadrant of the Moon’s near side. Although predominantly a highland area centered around the Taurus Mountains (Montes Taurus), it is bounded by three major mare-filled basins: Tranquillitatis, the oldest, to the south; Serenitatis to the west; and Crisium on the east. Most of the geologic units within the quadrangle have been profoundly...
Geologic map of the Maurolycus Quadrangle of the Moon Geologic map of the Maurolycus Quadrangle of the Moon
The Maurolycus quadrangle, located in the southeastern highlands, includes densely to moderately cratered terrain with many craters larger than 45 km in rim crest diameter. Several appear to be ancient and may be among the most primitive discernable features on the lunar surface. Major stratigraphic units consist of the Janssen Formation, hummocky terra and pitted plains materials, and...