Preliminary Geological Assessment of the Northern Edge of Ultimi Lobe, Mars South Polar Layered Deposits

Geologic History of the Polar Regions of Mars Based on Mars Global Surveyor Data II. Amazonian Period

“…14 of Murray et al (2001)). In our analysis of MOC images of the younger, higher elevation SPLD exposed within the spiral troughs, we have not observed any brittle fracture or debris piles related to slope failure; however, we do note an increase in the occurrence of features that Edgett and Malin (2000a) attribute to soft-sediment deformation and (or) collapse due to volume change.…”

“…8). Locally, resurfacing of the SPLD is evident from burial of McMurdo secondaries by smooth mantle material (Tanaka et al 2000), uneven distribution of subkilometersize craters (Murray et al 2001), and local remnants of mantles (see Tanaka and Kolb 2001, Fig. 8).…”

“…• (Murray et al 2001). Although MOLA-derived slope angles of PLD scarps adjacent to the McMurdo crater are ∼21…”

“…Within the Ultimi lobe region, where the SPLD overlie Noachian units, MOC images reveal a high-angle fault (e.g., Figs.13a and 13b of Murray et al (2001)) and extensive evidence of slope-failure-derived mass wasting (e.g., Fig. 14 of Murray et al (2001)).…”

Introduction to the 4th Mars Polar Science and Exploration Conference special issue: Five top questions in Mars polar science

“…Near the NPLD margins, angular unconformities and erosion are more common (Howard et al, 1982;Milkovich and Head, 2005;Tanaka, 2005;Fishbaugh and Hvidberg, 2006), and localized examples also occur within the SPLD (Murray et al, 2001). Analysis of HiRISE and CTX stereo anaglyphs and DTMs will certainly aid in the identification of true angular unconformities (vs "optical illusions" created by complex topography) and in the understanding of the stratigraphic relationships associated with them.…”