Geology and Stratigraphic Correlation of the Murray and Carolyn Shoemaker Formations Across the Glen Torridon Region, Gale Crater, Mars

The Glen Torridon (GT) region within Gale crater, Mars, occurs in contact with the southern side of Vera Rubin ridge (VRR), a well-defined geomorphic feature that is comparatively resistant to erosion. Prior detailed ground-based investigation GT, its geologic relationship VRR was unknown. Distinct lithologic subunits Jura member (Murray formation), which forms upper part VRR, made it possible be also identified GT. This indicates strata pass across divide between regions. Furthermore, cross-bedded lower overlying Knockfarril Hill (Carolyn Shoemaker formation) both and Correlation units demonstrates form continuous stratigraphic succession regardless large-scale expression. change from mudstone (Jura member) sandstone (Knockfarril heralds significant shift paleoenvironment lacustrine fluvial. consists interbedded transitions finely laminated Glasgow member, return deposition. In Stimson formation unconformably overlies where demarks boundary Contacts for each unit were defined transferred high-resolution image base make map cross sections perpendicular NE strike. Stratal dips cannot exceed 2° NW retain positions locations they are exposed throughout