Morphologic Studies of Mare Wrinkle Ridges Using LIDAR Data

Details Morphologic Studies of Mare Wrinkle Ridges Using LIDAR Data Morphologic Studies of Mare Wrinkle Ridges Using LIDAR Data

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1389w&link_type=abstract

Lunar and Planetary Science, volume 27, page 1389

Computer Science

Sound

Clementine, Lidar, Mare Serenitatis, Mare Wrinkle Ridges, Moon

Scientific paper

Attempts to characterize the detailed morphology of mare wrinkle ridges have been limited by the ack topographic data for the Moon. Previous efforts have been confined to wrinkle ridges that fall within areas covered by Lunar Orthophotomaps (LTO's), or that were traversed by the Apollo 17 Lunar Sounder Experiment. Photogeologic studies of mare ridges clearly indicate the variable nature of their morphology. This is reflected in the variety of kinematic models that have been proposed. Where wrinkle ridges are associated with ridge-scarp transitions, as is the case for the Lee Lincoln and West Serenitatis scarps, the mare surface is offset by as much as 100 m. These offsets are likely the result of high-angle reverse faulting. Golombek et al. have reported that mare ridges (not associated with wrinkle ridge-scarp transitions) exhibit elevation offsets from one side of a ridge to the other. They suggest that these offsets are caused by thrust faults beneath the ridges that separate the mare into structural blocks at different elevations. The topographic profiles they constructed using LTO's, however, could not be corrected for the influence of the regional slope of the mare surface. Thus the existence of true structural offsets associated with the mare ridges has not been confirmed. Using altimetry data returned by Clementine's laser ranging instrument (LIDAR), the topographic setting of mare ridges is examined and the contribution of the regional slope of the mare surface to ridge morphology is assessed. Preliminary results indicate that there is no evidence of significant structural offsets across mare ridges.

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