Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Sand Ramp

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_538

Definition

A collection of inclined deposits formed by aeolian trapping of sand against a topographic barrier.

Category

A type of  obstacle dune

A type of  mass wasting landform

A type of  alluvial deposit

A type of  colluvial deposit

Description

A sand ramp is a large dune-scale collection of aeolian, fluvial, and talus deposits formed among desert piedmont topography. Sand ramps may develop on either side of a mountain range, often as pairs, as part of sediment transport pathways. Preserved sand ramps may record long periods of tectonic stability and paleoclimate change. They are constructed by geomorphological processes of wind, water, and mass wasting which result in a large variability in sediment sizes (e.g., fine sand to boulders) and compositions. In general, sand ramps can be viewed as an intermediary between the end members of climbing/falling dunes, alluvial fans, and (dry) landslides. Martian examples of falling and climbing dunes formed by aeolian and mass-wasting...

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References

  1. Bateman MD, Bryant RG, Foster IDL, Livingstone I, Parsons AJ (2012) On the formation of sand ramps: a case study from the Mojave Desert. Geomorphology 161–162:93–109. doi:10.1016/j.geomorph.2012.04.004CrossRefGoogle Scholar
  2. Bertram S (2003) Late Quaternary sand ramps in south-western Namibia: nature, origin and palaeoclimatological significance. Unpublished doctoral thesis, Universität Würzburg. http://www.opus-bayern.de/uni-wuerzburg/volltexte/2003/617/pdf/Dissertation_Silke_Bertram.pdf. Accessed 4 May 2011
  3. Chojnacki M, Moersch JE, Burr DM (2010) Climbing and falling dunes in Valles Marineris, Mars. Geophys Res Lett 37:l08201. doi:10.1029/2009GL042263CrossRefGoogle Scholar
  4. Chojnacki M, Burr DM, Moersch JE (2014) Valles Marineris dune fields as compared with other martian populations: diversity of dune compositions, morphologies, and thermophysical properties. Icarus 230:96–142. doi:10.1016/j.icarus.2013.08.018CrossRefGoogle Scholar
  5. Clemmensen LB, Fornós JJ, Rodríguez-Perea A (1997) Morphology and architecture of a late Pleistocene cliff-front dune, Mallorca, Western Mediterranean. Terra Nova 9:251–254CrossRefGoogle Scholar
  6. Kocurek G, Lancaster N (1999) Aeolian sediment states: theory and Mojave Desert Kelso Dunefield example. Sedimentology 46:505–516CrossRefGoogle Scholar
  7. Lancaster N, Tchakerian VP (1996) Geomorphology and sediment of sand ramps in the Mojave Desert. Geomorphology 17(151):165Google Scholar
  8. Peterson FF (1981) Landforms of the Basin and Range Province defined for soil survey, vol 28, Technical bulletin. Nevada Agricultural Experiment Station, Reno, 52pGoogle Scholar
  9. Telfer MW, Thomas ZA, Breman B (2012) Sand ramps in the Golden Gate Highlands National Park, South Africa: evidence of periglacial aeolian activity during the Last Glacial. Palaeogeogr Palaeoclimatol Palaeoecol 313–314:59–69CrossRefGoogle Scholar
  10. Thomas DSG, Bateman MD, Mehrshahi D, OHara SL (1997) Development and environmental significance of an eolian sand ramp of last-glacial age, central Iran. Quat Res 48:155–161CrossRefGoogle Scholar
  11. Turner BR, Makhlouf I (2002) Recent colluvial sedimentation in Jordan: fans evolving into sand ramps. Sedimentology 49:1283–1298. In: Walden J, Oldfield F, Smith J (eds) Environmental magnetism – a practical guide. Quaternary Research Association Technical Guide, No. 6. QRA, LondonGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Lunar and Planetary LaboratoryUniversity of ArizonaTucsonUSA