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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 topograhpy, visible under low illumination. The properties of such surface units are considered to represent properties of under lying materials, so that the surface units corespond to underlying rock units which are analogous to the rock-stratigraphic formations of terrestrial geology. These rock units are arranged in order of relative age and grouped into time stratigraphic units by application of the concepts of superpositon and intersection, and by their apparent modification of properties with time. Following terrestrial convection,...
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The Sinus Sabaeus quadrangle lies in the southern equatorial region of Mars. It is bounded on the north by the equator, on the west by the central meridian, on the south by lat 30° S., and on the east by long 315° W. Three classical regions that have low albedos occur within the quadrangle (Lowell Observatory, 1971): (1) half of Sinus Meridiani occupies part of the northwest corner of the quadrangle; (2) Sinus Sabaeus forms a broad east-west band 180 to 360 km wide across the upper part of the quadrangle along lat 10° S.; and (3) Serpentis Minor occupies the southeast corner. The classical high-albedo regions of Deucalionis Regio and Pandorae Fretum occupy the western and central southern parts of the quadrangle;...
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The National Aeronautics and Space Administration plans to land two astronauts on the Moon as a part of the Apollo Space Program. The questions arise: What should the astronauts do on the surface and what information should they gather? This report proposes answers to these questions by describing a possible series of scientific activities, or mission profiles, to be performed by the astronauts on the lunar surface during the first seven missions.
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Material exposed on the surface of the moon is heterogenous. 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 from another, and the variations are partially correlated with differences in topography. Discontinuities in the areal variation permit the surface material to be divided up into map units, each exhibiting a limited range of topographic characteristics. Each map unit is further characterized by a distinctive pattern of distribution, and the patterns of certain units are in places superimposed on the patterns of other units. From the relations of superposition it is possible to determine the sequence in which...
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The main idea behind this slide presentation is to develope a general philosophy on: 1) lunar impact cratering processes, 2) characteristics of impact craters and ejecta as a function of target material and, size, 3) the effects of layered targets on impact crater morphology, and 4) illustration of the above for lunar sites.
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