Geologic Map of Source Region of Shalbatana Vallis, Mars GIS Version --------------- Rationale and Intent: This geologic map was authored by Daniel C. Berman in 2020, and has been digitized as a GIS product for public release. Please use the original citation: Berman, D.C., Rodriguez, J.A.P., Weitz, C.M., and Crown, D.A., 2022, Geologic map of the source region of Shalbatana Vallis, Mars: U.S. Geological Survey Scientific Investigations Map 3492, pamphlet 10 p., scale 1:750,000, https://doi.org/10.3133/sim3492. --------------- Project specific datasets are projected (meters). Projection: Mars Transverse Mercator Xanthe_Terra_clon_-30 - Central Meridian, clon = -30 East Latitude_Of_Origin: 0.0 using the geographic coordinate system "Mars 2000 Sphere" Major and minor axes are 3396190.0 m This file is included in [folder] ... (*.prj) ---------------- Projection: Equidistant Cylindrical (Simple Cylindrical) Central meridian (clon) = 0 Standard parallel (clat) = 0 Using the geographic coordinate system "Mars 2000 Sphere" Major and minor axes are 3396190.0 m This file is included in CoordinateSystems [folder] ... Mars2000 Equidistant Cylindrical clon0.prj ---------------- File geodatabase contains six feature classes, as follows: 1.) GeoContacts_FINAL (polyline file) 2.) LinearFeatures_FINAL (polyline file) 3.) Geologic_UnitsAnno (annotation file) 4.) map_boundary (polyline file) 5.) SurfaceFeatures_FINAL (polygon file) 6.) MTM_quad_boundaries (polygon file) 7.) GeoUnits_FINAL (polygon file) 8.) Nomenclature (annotation file) These feature classes are grouped into “Mapping Layers” in the ArcMap project. They are projected as MTM and should house all digitized map information. ---------------- Raster layers are included in the folder ...\BaseMaps\, and include: 1.) Xanthe_HRSC_DTM_mosaic_Clip.tif (50 mpp) 2.) Xanthe_Mola_128ppd_oc_clon0_dem.tif (463 mpp) 3.) Xanthe_Mola_128ppd_oc_clon0_hshd.tif (463 mpp) 4.) Xanthe_THEMIS_IRday_100mpp.tif (100 mpp) 5.) Xanthe_THEMIS_IRnight_100mpp.tif (100 mpp) These feature classes are grouped into “Rasters” in the ArcMap project. They are projected as MTM. ---------------- Symbols are applied to each of the included feature classes. These symbols are adapted from USGS Open File Report 99-430 (Digital Cartographic Standard for Geologic Map Symbolization). These can be viewed and downloaded at http://pubs.usgs.gov/of/1999/of99-430/ ---------------- Comments are encouraged in order to assimilate beneficial GIS-based tools, datasets, and mapping approaches for future mappers. contact: Marc Hunter mahunter@usgs.gov Trent Hare thare@usgs.gov Jim Skinner jskinner@usgs.gov Corey Fortezzo cfortezzo@usgs.gov