Duricrust is often studied during missions to Mars because it may help prove the planet once had more water. Duricrust was found on Mars at the Viking 2 landing site, and a similar structure, nicknamed "Snow Queen", was found under the Phoenix landing site.[3] Phoenix's duricrust was later confirmed to be water-based.[4]
Referencesedit
^ abDixon, J.C. and McLaren, S.J., 2009. Duricrusts. In A.J. Parsons and A.D. Abrahams, ed., pp. 123-151. Geomorphology of desert environments. Springer, Dordrecht. ISBN978-1-4020-5718-2
^Woolnough, W.G., 1930. The influence of climate and topography in the formation and distribution of products of weathering.Geological Magazine, 67(3), pp.123-132.
^Rayl, A.J.S. (June 1, 2008). . The Planetary Society. Archived from the original on June 5, 2008. Retrieved November 12, 2008.
^Nemiroff, R.; Bonnell, J., eds. (November 12, 2008). "Phoenix and the Holy Cow". Astronomy Picture of the Day. NASA. Retrieved November 12, 2008.
Further readingedit
DILL, H.G., WEBER, B. and BOTZ, R. (2013) Metalliferous duricrusts (“orecretes”) - markers of weathering: A mineralogical and climatic-geomorphological approach to supergene Pb-Zn-Cu-Sb-P mineralization on different parent materials.- Neues Jahrbuch für Mineralogie Abhandlungen, 190: 123-195
External linksedit
Description
NASA: The Sands of Mars
This soil science–related article is a stub. You can help Wikipedia by expanding it.
duricrust, hard, layer, near, surface, soil, range, thickness, from, millimeters, centimeters, several, meters, duricrust, inselberg, near, dori, burkina, fasokey, mineralssoluble, mineralsclimatearidprimaryvarioussecondaryvariousit, general, term, confused, w. Duricrust is a hard layer on or near the surface of soil Duricrusts can range in thickness from a few millimeters or centimeters to several meters DuricrustA duricrust inselberg near Dori Burkina FasoKey mineralsSoluble mineralsClimateAridPrimaryVariousSecondaryVariousIt is a general term not to be confused with duripan for a zone of chemical precipitation and hardening formed at or near the surface of sedimentary bodies through pedogenic or non pedogenic processes It is typically formed by the accumulation of soluble minerals deposited by mineral bearing waters that move upward downward or laterally by capillary action commonly assisted in arid settings by evaporation 1 2 There are different types of duricrusts each distinguished by a dominant mineralogy For example ferricrete laterite is dominated by sesquioxides of iron alcrete bauxite is dominated by sesquioxides of aluminum silcrete by silica calcrete caliche by calcium carbonate and gypcrete gypcrust by gypsum 1 Duricrust is often studied during missions to Mars because it may help prove the planet once had more water Duricrust was found on Mars at the Viking 2 landing site and a similar structure nicknamed Snow Queen was found under the Phoenix landing site 3 Phoenix s duricrust was later confirmed to be water based 4 References edit a b Dixon J C and McLaren S J 2009 Duricrusts In A J Parsons and A D Abrahams ed pp 123 151 Geomorphology of desert environments Springer Dordrecht ISBN 978 1 4020 5718 2 Woolnough W G 1930 The influence of climate and topography in the formation and distribution of products of weathering Geological Magazine 67 3 pp 123 132 Rayl A J S June 1 2008 Holy Cow Snow Queen Phoenix Landed on Ice Team Thinks The Planetary Society Archived from the original on June 5 2008 Retrieved November 12 2008 Nemiroff R Bonnell J eds November 12 2008 Phoenix and the Holy Cow Astronomy Picture of the Day NASA Retrieved November 12 2008 Further reading editDILL H G WEBER B and BOTZ R 2013 Metalliferous duricrusts orecretes markers of weathering A mineralogical and climatic geomorphological approach to supergene Pb Zn Cu Sb P mineralization on different parent materials Neues Jahrbuch fur Mineralogie Abhandlungen 190 123 195External links editDescription NASA The Sands of Mars nbsp This soil science related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Duricrust amp oldid 1180121110, wikipedia, wiki, book, books, library,
