Data

Published geologic maps of south polar region of Mars have been based on either Mariner 9 (Condit Soderblom, 1978; Scott and Carr, 1978) or Viking Orbiter (Tanaka and Scott, 1987) images. The mapped extent of the southern layered deposits differs in many places on these maps and on our maps. These differences reflect the difficulty in accurately determining the location of the contact...

This 1:250,000- scale geologic map is one of a series prepared largely from photographs transmitted by Ranger IX (reproduced in a report by Jet Propulsion Lab., 1966). It depicts the geology of the crater Alphonsus (in which Ranger IX impacted) and environs. The primary objective of the mapping was to apply extant lunar mapping techniques used on relatively small scale telescopic...

Material exposed on the surface of the Moon is heterogeneous. The albedo and other physical characteristics that have been determined with the use of optical and radio telescopes vary from one part of the Moon to another, and the variations are particular correlated with differences in topography. Discontinuities in the areal variation permit the surface material to be divided into map...

The surface of the moon is heterogenous. Similar surface materials are grouped into map units by means of telescope observations, study of lunar photographs, and photometric measurements. Each map unit has lateral continuity and limited range of physiographic characteristics and optical properties (mainly albedo, the reflectivity under full moon illumination). Such units are equivalent...

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 topographic and other physical such as albedo, the reflectivity under full-Moon illumination. Such units are considered analogous to the rock-stratigraphic formations of terrestrial geology. By application of the principals of...

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...

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...

The surface of the Moon is heterogenous. Local surfaces can be classed on the basis of telescopic observations into units, each having a limited range of physical properties such as topography, visible under low illumination. The properties of such surface units are considered to represent properties of under lying materials, so that the surface units correspond to underlying rock units...

The large crater Petavius, about 180 km in diameter, is the dominant geologic feature within this quadrangle at the southeast border of Mare Fecunditatis on the east limb of the near side. Four categories of materials have been distinguished herein: (1) terrae, with rugged to gently rolling topography and moderate albedo; (2) plains, of low relief and moderate albedo; (3) craters, with...

The Rima Hyginus region lies within the Mare Vaporum quadrangle (LAC 59), 7 degrees from the center of the lunar earthside hemisphere, near several large impact basins. The Rima Hyginus region occupies a broad structural trough concentric with the Imbrium basin, which has especially controlled the geology of the area, Plains-forming materials cover most of the region, except for a belt...

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 the type areas of the lunar geologic systems...

Photographs returned by unmanned Lunar Orbiters have contributed greatly to the current lunar geologic mapping program. This is particularly true for quadrangles near the limbs, such as Rheita in the southeast earthside quadrant. The new data and revised interpretations amend the geologic framework established by earlier workers (Shoemaker (1962) and Shoemaker and Hackman (1962) applied...