Lunar Apennine-Hadley Region: Geological Inplications of Earth-Based Radar and Infrared Measurements

Science  27 Aug 1971:
Vol. 173, Issue 3999, pp. 808-812
DOI: 10.1126/science.173.3999.808


Recently completed high-resolution radar maps of the moon contain information on the decimeter-scale structure of the surface. When this information is combined with eclipse thermal-enhancement data and with high-resolution Lunar Orbiter photography, the surface morphology is revealed in some detail. A geological history for certain features and subareas can be developed, which provides one possible framework for the interpretation of the findings from the Apollo 15 landing. Frequency of decimeter-and meter-size blocks in and around lunar craters, given by the remote-sensed data, supports a multilayer structure in the Palus Putredinis mare region, as well as a great age for the bordering Apennine Mountains scarp.