Lunar Wrinkle Ridges Map of lunar wrinkle ridges digitized from LROC Wide Angle Camera (WAC) global mosaic and hillshade maps generated from GLD100 Digital Terrain Model. Both imagery and terrain at 100 meter pixel scale were the primary data source for this shapefile. Wrinkle ridges are positive-relief tectonic features found in the mare basalts of the moon. Wrinkle ridges formed through faulting and folding indicate compressional stress. For more specifics on the digitization of this dataset, see abstract: Thompson, T. J., M. S. Robinson, T. R. Watters, M. B. Johnson (2017), Global Lunar Wrinkle Ridge Identification and Analysis, Lunar Planetary Science Conference 2017. http://www.hou.usra.edu/meetings/lpsc2017/pdf/2665.pdf. When citing this product, use the following reference: Thompson, T. J., M. S. Robinson, T. R. Watters, M. B. Johnson (2017), Global Lunar Wrinkle Ridge Identification and Analysis, Lunar Planetary Science Conference 2017. http://www.hou.usra.edu/meetings/lpsc2017/pdf/2665.pdf Polyline shapefiles are available in the IAU Moon 2000 Geographic Coordinate System in both the -180 to 180 and 0 to 360 longitude domains. Longitude Domain: Product Name: 180 WRINKLE_RIDGES_180 360 WRINKLE_RIDGES_360 Shapefile Field Descriptions: start_lon - Starting longitude in degrees (-180 to 180) end_lon - Ending longitude in degrees (-180 to 180) start_lat - Starting latitude in degrees end_lat - Ending latitude in degrees