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INSET: USGS IMAP 1640: Geologic map of the Mare Boreum area of Mars

By Planetary Geologic Mapping 1984 (approx.)

Inset of USGS IMAP 1640: Geologic map of the Mare Boreum area of Mars

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Inset of USGS IMAP 1640: Geologic map of the Mare Boreum area of Mars

By A. L. Dial Jr.

Map and associated documents available from the USGS Publications Warehouse: https://doi.org/10.3133/i1640

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Public Domain.

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January 1, 1984

Geologic map of the Mare Boreum area of Mars Geologic map of the Mare Boreum area of Mars

The Mare Boreum geologic map portrays the north polar area of Mars above lat 65˚ N. The area contains five physiographic provinces: (1) a residual ice cap characterized by troughs with a counterclockwise outward spiral pattern (Mariner 9 frames DAS 13317550 and DAS 13353320); (2) layered terrain adjacent to the ice cap, exposed within the spiral troughs; (3) a circumpolar band of low...

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