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USGS IMAP 714: Geologic map of the Colombo Quadrangle of the Moon

1972 (approx.)
USGS IMAP 714: Geologic map of the Colombo Quadrangle of the Moon
Original Thumbnail Medium

Detailed Description

USGS IMAP 714: Geologic map of the Colombo Quadrangle of the Moon

By D. P. Elston

Map and associated documents available from the USGS Publications Warehouse: https://doi.org/10.3133/i714

Sources/Usage

Public Domain.

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Geologic map of the Colombo Quadrangle of the Moon Geologic map of the Colombo Quadrangle of the Moon

Relative ages of structures and geologic units have been determined from intersection and apparent overlap relations and from morphologic freshness reflecting degree of preservation. The fivefold crater-age sequence is based on the classification of Shoemaker and Hackman (1962), and corresponds broadly to a modified classification of Pohn and Offield (1970) and Offield (1971). Rock units...

Related

Geologic map of the Colombo Quadrangle of the Moon Geologic map of the Colombo Quadrangle of the Moon

Relative ages of structures and geologic units have been determined from intersection and apparent overlap relations and from morphologic freshness reflecting degree of preservation. The fivefold crater-age sequence is based on the classification of Shoemaker and Hackman (1962), and corresponds broadly to a modified classification of Pohn and Offield (1970) and Offield (1971). Rock units...
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