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INSET: USGS IMAP 720: Geologic map of the Fracastorius Quadrangle of the Moon

By Planetary Geologic Mapping 1972 (approx.)

Inset of USGS IMAP 720: Geologic map of the Fracastorius Quadrangle of the Moon

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Inset of USGS IMAP 720: Geologic map of the Fracastorius Quadrangle of the Moon

By D.E. Stuart-Alexander and R. W. Tabor

Map and associated documents available from the USGS Publications Warehouse: https://doi.org/10.3133/i720

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Public Domain.

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January 1, 1972

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...

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