Martian Lineaments from Mariner 6 and 7 Images
نویسنده
چکیده
Mariner 6 and 7 images were used to investigate the nature and importance of linear surface trends on Mars. Cross correlations of frequency-azimuth distributions of linear trends from different Mariner frames indicate that linearions not recognized as topographic features have a component of artifacts, probably introduced during digital reconstruction of the images. Consequently, topographic and nontopographic linearions should be treated separately prior to interpretation of the data. Similar statistical tests may aid in the analysis of surface trends from future satellites and space probes. In this study the most reliable data were separated into photometrically defined provinces. Meridiani Sinus and Margarififer Sinus display six major trends in common, which are interpreted as extensions of crustal shear stresses related to the enormous equatorial cany6n revealed in Mariner 6 and 9 images. Alignments of crater wall segments generally match these trends and suggest structural control ,
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