Eridania quadrangle

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Eridania quadrangle
USGS-Mars-MC-29-EridaniaRegion-mola.png
Map of Eridania quadrangle from Mars Orbiter Laser Altimeter (MOLA) data. The highest elevations are red and the lowest are blue.
Coordinates 47°30′S210°00′W / 47.5°S 210°W / -47.5; -210
Image of the Eridania Quadrangle (MC-29). The region mainly includes heavily cratered highlands. The west-central part includes Kepler Crater. PIA00189-MC-29-EridaniaRegion-19980605.jpg
Image of the Eridania Quadrangle (MC-29). The region mainly includes heavily cratered highlands. The west-central part includes Kepler Crater.

The Eridania quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Eridania quadrangle is also referred to as MC-29 (Mars Chart-29). [1]

Contents

The Eridania quadrangle lies between 30° and 65° south latitude and 180° and 240° west longitude on the planet Mars. Most of the classic region named Terra Cimmeria is found within this quadrangle. It is named after a region on the Po River, Italy. The name was approved by the IAUP in 1958. [2] [3]

Part of the Electris deposits, a 100–200 meters thick, light-toned deposit covers the Eridania quadrangle. [4] Many slopes in Eridania contain gullies, which are believed to be caused by flowing water.

Martian gullies

The Eridania quadrangle is the location of gullies that may be due to recent flowing water. Gullies occur on steep slopes, especially on the walls of craters. Gullies are believed to be relatively young because they have few, if any craters. Moreover, they lie on top of sand dunes which themselves are considered to be quite young. Usually, each gully has an alcove, channel, and apron. Some studies have found that gullies occur on slopes that face all directions, [5] others have found that the greater number of gullies are found on poleward facing slopes, especially from 30-44 S. [6] [7]

Although many ideas have been put forward to explain them, [8] the most popular involve liquid water coming from an aquifer, from melting at the base of old glaciers, or from the melting of ice in the ground when the climate was warmer. [9] [10] Because of the good possibility that liquid water was involved with their formation and that they could be very young, scientist believe gullies are where we may be able to find life.

There is evidence for all three theories. Most of the gully alcove heads occur at the same level, just as one would expect of an aquifer. Various measurements and calculations show that liquid water could exist in aquifers at the usual depths where gullies begin. [11] One variation of this model is that rising hot magma could have melted ice in the ground and caused water to flow in aquifers. Aquifers are layer that allow water to flow. They may consist of porous sandstone. The aquifer layer would be perched on top of another layer that prevents water from going down (in geological terms it would be called impermeable). Because water in an aquifer is prevented from going down, the only direction the trapped water can flow is horizontally. Eventually, water could flow out onto the surface when the aquifer reaches a break—like a crater wall. The resulting flow of water could erode the wall to create gullies. [12] Aquifers are quite common on Earth. A good example is "Weeping Rock" in Zion National Park Utah. [13]

As for the next theory, much of the surface of Mars is covered by a thick smooth mantle that is thought to be a mixture of ice and dust. [14] [15] [16] This ice-rich mantle, a few yards thick, smooths the land, but in places it has a bumpy texture, resembling the surface of a basketball. The mantle may be like a glacier and under certain conditions the ice that is mixed in the mantle could melt and flow down the slopes and make gullies. [17] [18] [19] Because there are few craters on this mantle, the mantle is relatively young. An excellent view of this mantle is shown below in the picture of the Ptolemaeus Crater Rim, as seen by HiRISE. [20] The ice-rich mantle may be the result of climate changes. [21] Changes in Mars's orbit and tilt cause significant changes in the distribution of water ice from polar regions down to latitudes equivalent to Texas. During certain climate periods, water vapor leaves polar ice and enters the atmosphere. The water comes back to ground at lower latitudes as deposits of frost or snow mixed generously with dust. The atmosphere of Mars contains a great deal of fine dust particles. Water vapor will condense on the particles, then fall down to the ground due to the additional weight of the water coating. When Mars is at its greatest tilt or obliquity, up to 2 cm of ice could be removed from the summer ice cap and deposited at midlatitudes. This movement of water could last for several thousand years and create a snow layer of up to around 10 meters thick. [22] [23] When ice at the top of the mantling layer goes back into the atmosphere, it leaves behind dust, which insulating the remaining ice. [24] Measurements of altitudes and slopes of gullies support the idea that snowpacks or glaciers are associated with gullies. Steeper slopes have more shade which would preserve snow. [6] [7] Higher elevations have far fewer gullies because ice would tend to sublimate more in the thin air of the higher altitude. [25]

The third theory might be possible since climate changes may be enough to simply allow ice in the ground to melt and thus form the gullies. During a warmer climate, the first few meters of ground could thaw and produce a "debris flow" similar to those on the dry and cold Greenland east coast. [26] Since the gullies occur on steep slopes only a small decrease of the shear strength of the soil particles is needed to begin the flow. Small amounts of liquid water from melted ground ice could be enough. [27] [28] Calculations show that a third of a mm of runoff can be produced each day for 50 days of each Martian year, even under current conditions. [29]

Dust devil tracks

Many areas on Mars, including Eridania, experience the passage of giant dust devils. A thin coating of fine bright dust covers most of the Martian surface. When a dust devil goes by it blows away the coating and exposes the underlying dark surface.

Dust devils occur when the sun warms up the air near a flat, dry surface. The warm air then rises quickly through the cooler air and begins spinning while moving ahead. This spinning, moving cell may pick up dust and sand then leave behind a clean surface. [30]

Dust devils have been seen from the ground and high overhead from orbit. They have even blown the dust off of the solar panels of the two Rovers on Mars, thereby greatly extending their lives. [31] The twin Rovers were designed to last for 3 months, instead they lasted more than six years, and one is still going after 8 years. The pattern of the tracks have been shown to change every few months. [32]

A study that combined data from the High Resolution Stereo Camera (HRSC) and the Mars Orbiter Camera (MOC) found that some large dust devils on Mars have a diameter of 700 meters and last at least 26 minutes. [33]

Paleomagnetism

The Mars Global Surveyor (MGS) discovered magnetic stripes in the crust of Mars, especially in the Phaethontis and Eridania quadrangles (Terra Cimmeria and Terra Sirenum). [34] [35] The magnetometer on MGS discovered 100 km wide stripes of magnetized crust running roughly parallel for up to 2000 km. These stripes alternate in polarity with the north magnetic pole of one pointing up from the surface and the north magnetic pole of the next pointing down. [36] When similar stripes were discovered on Earth in the 1960s, they were taken as evidence of plate tectonics. Researchers believe these magnetic stripes on Mars are evidence for a short, early period of plate tectonic activity. [37] When the rocks became solid they retained the magnetism that existed at the time. A magnetic field of a planet is believed to be caused by fluid motions under the surface. [38] [39] [40] However, there are some differences, between the magnetic stripes on Earth and those on Mars. The Martian stripes are wider, much more strongly magnetized, and do not appear to spread out from a middle crustal spreading zone. Because the area containing the magnetic stripes is about 4 billion years old, it is believed that the global magnetic field probably lasted for only the first few hundred million years of Mars' life, when the temperature of the molten iron in the planet's core might have been high enough to mix it into a magnetic dynamo. There are no magnetic fields near large impact basins like Hellas. The shock of the impact may have erased the remnant magnetization in the rock. So, magnetism produced by early fluid motion in the core would not have existed after the impacts. [41]

Some researchers have proposed that early in its history Mars exhibited a form of plate tectonics. At about 3.93 billion years ago Mars became a one plate planet with a superplume under Tharsis. [42] [43] [44]

When molten rock containing magnetic material, such as hematite (Fe2O3), cools and solidifies in the presence of a magnetic field, it becomes magnetized and takes on the polarity of the background field. This magnetism is lost only if the rock is subsequently heated above a particular temperature (the Curie point which is 770 °C for iron). The magnetism left in rocks is a record of the magnetic field when the rock solidified. [45]

Dunes

Dunes, including barchans are present in the Eridania quadrangle and some pictures below. When there are perfect conditions for producing sand dunes, steady wind in one direction and just enough sand, a barchan sand dune forms. Barchans have a gentle slope on the wind side and a much steeper slope on the lee side where horns or a notch often forms. [46] The whole dune may appear to move with the wind. Observing dunes on Mars can tell us how strong the winds are, as well as their direction. If pictures are taken at regular intervals, one may see changes in the dunes or possibly in ripples on the dune’s surface. On Mars dunes are often dark in color because they were formed from the common, volcanic rock basalt. In the dry environment, dark minerals in basalt, like olivine and pyroxene, do not break down as they do on Earth. Although rare, some dark sand is found on Hawaii which also has many volcanoes discharging basalt. Barchan is a Russian term because this type of dune was first seen in the desert regions of Turkistan. [47] Some of the wind on Mars is created when the dry ice at the poles is heated in the spring. At that time, the solid carbon dioxide (dry ice) sublimates or changes directly to a gas and rushes away at high speeds. Each Martian year 30% of the carbon dioxide in the atmosphere freezes out and covers the pole that is experiencing winter, so there is a great potential for strong winds. [48]

Glacial features

Glaciers, loosely defined as patches of currently or recently flowing ice, are thought to be present across large but restricted areas of the modern Martian surface, and are inferred to have been more widely distributed at times in the past. [49] [50] [ page needed ] Lobate convex features on the surface known as viscous flow features and lobate debris aprons , which show the characteristics of non-Newtonian flow, are now almost unanimously regarded as true glaciers. [49] [51] [52] [53] [54] [55] [56] [57] [58]

Lake

The Eridania Basin, located near 180 E and 30 South, is thought to have contained a large lake with a depth of 1 km in places. [59] The basin is composed of a group of eroded and connected topographically impact basins. The lake has been estimated to have an area of 3,000,000 square kilometers. Water from this lake entered Ma'adim Vallis which starts at the lake's north boundary. [60] It is surrounded by valley networks that all end at the same elevation, suggesting that they emptied into a lake. [61] Magnessium-rich clay minerals and opaline silica have been detected in the area. [62] These minerals are consistent with the presence of a large lake. [60]

The region of this lake shows strong evidence for ancient magnetism on Mars. [63] It has been suggested that the crust was pulled apart here, as on plate boundaries on the Earth. There are high levels of potassium in the area which may point to a deep mantle source for volcanism or major changes in the crust. [64] [65] [66]

Later research with CRISM found thick deposits, greater than 400 meters thick, that contained the minerals saponite, talc-saponite, Fe-rich mica (for example, glauconite-nontronite), Fe- and Mg-serpentine, Mg-Fe-Ca-carbonate and probable Fe-sulphide. The Fe-sulphide probably formed in deep water from water heated by volcanoes. Analyses from the Mars Reconnaissance Orbiter provided evidence of ancient hydrothermal seafloor deposits in Eridania basin, suggesting that hydrothermal vents pumped mineral-laden water directly into this ancient Martian lake. [67] [68] Some sources say clay deposits can be up to 2 km thick. [69]

Craters

Latitude dependent mantle

Much of the Martian surface is covered with a thick ice-rich, mantle layer that has fallen from the sky a number of times in the past. [70] [71] [72] In some places a number of layers are visible in the mantle. [73] Some surfaces in Eridania are covered with this ice-rich mantling unit. In some places the surface displays a pitted or dissected texture; these textures are suggestive of material that once held ice that has since disappeared allowing the remaining soil to collapse into the subsurface. [74]

Channels

There is enormous evidence that water once flowed in river valleys on Mars. [75] [76] Images of curved channels have been seen in images from Mars spacecraft dating back to the early 1970s with the Mariner 9 orbiter. [77] [78] [79] [80] Indeed, a study published in June 2017, calculated that the volume of water needed to carve all the channels on Mars was even larger than the proposed ocean that the planet may have had. Water was probably recycled many times from the ocean to rainfall around Mars. [81] [82]

Other features

Other Mars quadrangles

Interactive icon.svg Clickable image of the 30 cartographic quadrangles of Mars, defined by the USGS. [83] [86] Quadrangle numbers (beginning with MC for "Mars Chart") [87] and names link to the corresponding articles. North is at the top; 0°N180°W / 0°N 180°W / 0; -180 is at the far left on the equator. The map images were taken by the Mars Global Surveyor.
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Interactive Mars map

Interactive image map of the global topography of Mars. Hover your mouse over the image to see the names of over 60 prominent geographic features, and click to link to them. Coloring of the base map indicates relative elevations, based on data from the Mars Orbiter Laser Altimeter on NASA's Mars Global Surveyor. Whites and browns indicate the highest elevations (+12 to +8 km); followed by pinks and reds (+8 to +3 km); yellow is 0 km; greens and blues are lower elevations (down to -8 km). Axes are latitude and longitude; Polar regions are noted.
(See also: Mars Rovers map and Mars Memorial map) (view * discuss) Mars Map.JPGCydonia MensaeGale craterHolden craterJezero craterLomonosov craterLyot craterMalea PlanumMaraldi craterMareotis TempeMie craterMilankovič craterSisyphi Planum
Interactive icon.svg Interactive image map of the global topography of Mars. Hover your mouse over the image to see the names of over 60 prominent geographic features, and click to link to them. Coloring of the base map indicates relative elevations, based on data from the Mars Orbiter Laser Altimeter on NASA's Mars Global Surveyor . Whites and browns indicate the highest elevations (+12 to +8 km); followed by pinks and reds (+8 to +3 km); yellow is 0 km; greens and blues are lower elevations (down to −8 km). Axes are latitude and longitude; Polar regions are noted.

See also

Related Research Articles

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<span class="mw-page-title-main">Terra Sabaea</span> Terra on Mars

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<span class="mw-page-title-main">Noachis quadrangle</span> Map of Mars

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<span class="mw-page-title-main">Casius quadrangle</span> Map of Mars

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<span class="mw-page-title-main">Mare Australe quadrangle</span> Map of Mars

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HiWish is a program created by NASA so that anyone can suggest a place for the HiRISE camera on the Mars Reconnaissance Orbiter to photograph. It was started in January 2010. In the first few months of the program 3000 people signed up to use HiRISE. The first images were released in April 2010. Over 12,000 suggestions were made by the public; suggestions were made for targets in each of the 30 quadrangles of Mars. Selected images released were used for three talks at the 16th Annual International Mars Society Convention. Below are some of the over 4,224 images that have been released from the HiWish program as of March 2016.

<span class="mw-page-title-main">Gullies on Mars</span> Incised networks of narrow channels and sediments on Mars

Martian gullies are small, incised networks of narrow channels and their associated downslope sediment deposits, found on the planet of Mars. They are named for their resemblance to terrestrial gullies. First discovered on images from Mars Global Surveyor, they occur on steep slopes, especially on the walls of craters. Usually, each gully has a dendritic alcove at its head, a fan-shaped apron at its base, and a single thread of incised channel linking the two, giving the whole gully an hourglass shape. They are estimated to be relatively young because they have few, if any craters. A subclass of gullies is also found cut into the faces of sand dunes, that are themselves considered to be quite young. Linear dune gullies are now considered recurrent seasonal features.

<span class="mw-page-title-main">Glaciers on Mars</span> Extraterrestrial bodies of ice

Glaciers, loosely defined as patches of currently or recently flowing ice, are thought to be present across large but restricted areas of the modern Martian surface, and are inferred to have been more widely distributed at times in the past. Lobate convex features on the surface known as viscous flow features and lobate debris aprons, which show the characteristics of non-Newtonian flow, are now almost unanimously regarded as true glaciers.

<span class="mw-page-title-main">Evidence of water on Mars found by Mars Reconnaissance Orbiter</span>

The Mars Reconnaissance Orbiter's HiRISE instrument has taken many images that strongly suggest that Mars has had a rich history of water-related processes. Many features of Mars appear to be created by large amounts of water. That Mars once possessed large amounts of water was confirmed by isotope studies in a study published in March 2015, by a team of scientists showing that the ice caps were highly enriched with deuterium, heavy hydrogen, by seven times as much as the Earth. This means that Mars has lost a volume of water 6.5 times what is stored in today's polar caps. The water for a time would have formed an ocean in the low-lying Mare Boreum. The amount of water could have covered the planet about 140 meters, but was probably in an ocean that in places would be almost 1 mile deep.

The common surface features of Mars include dark slope streaks, dust devil tracks, sand dunes, Medusae Fossae Formation, fretted terrain, layers, gullies, glaciers, scalloped topography, chaos terrain, possible ancient rivers, pedestal craters, brain terrain, and ring mold craters.

<span class="mw-page-title-main">Polygonal patterned ground</span>

Polygonal, patterned ground is quite common in some regions of Mars. It is commonly believed to be caused by the sublimation of ice from the ground. Sublimation is the direct change of solid ice to a gas. This is similar to what happens to dry ice on the Earth. Places on Mars that display polygonal ground may indicate where future colonists can find water ice. Low center polygons have been proposed as a marker for ground ice. Polygonal terrain is also found on earth's permafrost.

References

  1. Davies, M.E.; Batson, R.M.; Wu, S.S.C. “Geodesy and Cartography” in Kieffer, H.H.; Jakosky, B.M.; Snyder, C.W.; Matthews, M.S., Eds. Mars. University of Arizona Press: Tucson, 1992.
  2. "Planetary Names". planetarynames.wr.usgs.gov. Retrieved 2024-07-27.
  3. Proceedings of the General Assembly in Transactions of the International Astronomical Union, vol. XB, 1958, through XXVB, 2003.
  4. Grant, J. and P. Schultz. 1990. Gradational epochs on Mars: Evidence from west-northwest of Isidis Basin and Electric. Icarus: 84. 166-195.
  5. Edgett, K. et al. 2003. Polar-and middle-latitude martian gullies: A view from MGS MOC after 2 Mars years in the mapping orbit. Lunar Planet. Sci. 34. Abstract 1038.
  6. 1 2 "Archived copy" (PDF). Archived from the original (PDF) on 2017-07-06.{{cite web}}: CS1 maint: archived copy as title (link)
  7. 1 2 Dickson, J.; et al. (2007). "Martian gullies in the southern mid-latitudes of Mars Evidence for climate-controlled formation of young fluvial features based upon local and global topography". Icarus. 188 (2): 315–323. Bibcode:2007Icar..188..315D. doi:10.1016/j.icarus.2006.11.020.
  8. "PSRD: Gullied Slopes on Mars".
  9. Heldmann, J.; Mellon, M. (2004). "Observations of martian gullies and constraints on potential formation mechanisms. 2004". Icarus. 168 (2): 285–304. Bibcode:2004Icar..168..285H. doi:10.1016/j.icarus.2003.11.024.
  10. Forget, F. et al. 2006. Planet Mars Story of Another World. Praxis Publishing. Chichester, UK.
  11. Heldmann, J.; Mellon, M. (2004). "Observations of martian gullies and constraints on potential formation mechanisms". Icarus. 168 (2): 285–304. Bibcode:2004Icar..168..285H. doi:10.1016/j.icarus.2003.11.024.
  12. "Mars Gullies Likely Formed by Underground Aquifers". Space.com . 12 November 2004.
  13. Harris, A and E. Tuttle. 1990. Geology of National Parks. Kendall/Hunt Publishing Company. Dubuque, Iowa
  14. Malin, M. and K. Edgett. 2001. Mars Global Surveyor Mars Orbiter Camera: Interplanetary cruise through primary mission. J. Geophys. Res.: 106, 23429-23570
  15. Mustard, J. et al. 2001. Evidence for recent climate change on Mars from the identification of youthful near-surface ground ice. Nature 412. 411-414.
  16. Carr, M (2001). "Mars Global Surveyor observations of fretted terrain". J. Geophys. Res. 106 (E10): 23571–23595. Bibcode:2001JGR...10623571C. doi:10.1029/2000je001316.
  17. NBC News
  18. Head, J. W. (2008). "Formation of gullies on Mars: Link to recent climate history and insolation microenvironments implicate surface water flow origin". Proceedings of the National Academy of Sciences. 105 (36): 13258–13263. Bibcode:2008PNAS..10513258H. doi: 10.1073/pnas.0803760105 . PMC   2734344 . PMID   18725636.
  19. Head, J.; et al. (2008). "Formation of gullies on Mars: Link to recent climate history and insolation microenvironments implicate surface water flow origin". PNAS. 105 (36): 13258–13263. Bibcode:2008PNAS..10513258H. doi: 10.1073/pnas.0803760105 . PMC   2734344 . PMID   18725636.
  20. Christensen, P (2003). "Formation of recent martian gullies through melting of extensive water-rich snow deposits". Nature. 422 (6927): 45–48. Bibcode:2003Natur.422...45C. doi:10.1038/nature01436. PMID   12594459. S2CID   4385806.
  21. "Melting Snow Created Mars Gullies, Expert Says". Archived from the original on 2008-05-04.
  22. Jakosky, B.; Carr, M. (1985). "Possible precipitation of ice at low latitudes of Mars during periods of high obliquity". Nature. 315 (6020): 559–561. Bibcode:1985Natur.315..559J. doi:10.1038/315559a0. S2CID   4312172.
  23. Jakosky, B.; et al. (1995). "Chaotic obliquity and the nature of the Martian climate". J. Geophys. Res. 100 (E1): 1579–1584. Bibcode:1995JGR...100.1579J. doi:10.1029/94je02801.
  24. MLA NASA/Jet Propulsion Laboratory (2003, December 18). Mars May Be Emerging From An Ice Age. ScienceDaily. Retrieved February 19, 2009, from "ScienceDaily: Your source for the latest research news". /releases/2003/12/031218075443.htmAds by GoogleAdvertise
  25. Hecht, M (2002). "Metastability of liquid water on Mars". Icarus. 156 (2): 373–386. Bibcode:2002Icar..156..373H. doi:10.1006/icar.2001.6794.
  26. Peulvast, J. Physio-Geo. 18. 87-105.
  27. Costard, F. et al. 2001. Debris Flows on Mars: Analogy with Terrestrial Periglacial Environment and Climatic Implications. Lunar and Planetary Science XXXII (2001). 1534.pdf
  28. http://www.spaceref.com:16090/news/viewpr.html?pid=7124%5B%5D,
  29. Clow, G (1987). "Generation of liquid water on Mars through the melting of a dusty snowpack". Icarus. 72 (1): 95–127. Bibcode:1987Icar...72...95C. doi:10.1016/0019-1035(87)90123-0.
  30. "HiRISE | (PSP_00481_2410)".
  31. NASA.gov
  32. "Mars Exploration: Features". Archived from the original on 2011-10-28. Retrieved 2012-01-19.
  33. Reiss, D.; et al. (2011). "Multitemporal observations of identical active dust devils on Mars with High Resolution Stereo Camera (HRSC) and Mars Orbiter Camera (MOC)". Icarus. 215 (1): 358–369. Bibcode:2011Icar..215..358R. doi:10.1016/j.icarus.2011.06.011.
  34. Barlow, N. 2008. Mars: An Introduction to its Interior, Surface and Atmosphere. Cambridge University Press
  35. Forget, François; Costard, François; Lognonné, Philippe (12 December 2007). Planet Mars: Story of Another World. Praxis. ISBN   978-0-387-48925-4.
  36. Taylor, Fredric W. (10 December 2009). The Scientific Exploration of Mars. Cambridge University Press. ISBN   978-0-521-82956-4.
  37. "Surface of Mars Possibly Shaped by Plate Tectonics in Recent Past". Space.com . 3 January 2011.
  38. Connerney, J. et al. 1999. Magnetic lineations in the ancient crust of Mars. Science: 284. 794-798.
  39. Langlais, B. et al. 2004. Crustal magnetic field of Mars Journal of Geophysical Research 109: EO2008
  40. Connerney, J.; et al. (2005). "Tectonic implications of Mars crustal magnetism". Proceedings of the National Academy of Sciences of the USA. 102 (42): 14970–14975. Bibcode:2005PNAS..10214970C. doi: 10.1073/pnas.0507469102 . PMC   1250232 . PMID   16217034.
  41. Acuna, M.; et al. (1999). "Global distribution of crustal magnetization discovered by the Mars Global Surveyor MAG/ER Experiment". Science. 284 (5415): 790–793. Bibcode:1999Sci...284..790A. doi:10.1126/science.284.5415.790. PMID   10221908.
  42. Baker, V., et al. 2017. THE WATERY ORIGIN AND EVOLUTION OF MARS: A GEOLOGICAL PERSPECTIVE. Lunar and Planetary Science XLVIII (2017). 3015.pdf
  43. Baker, V. et al. 2004. TENTATIVE THEORIES FOR THE LONG-TERM GEOLOGICAL AND HYDROLOGICAL EVOLUTION OF MARS. Lunar and Planetary Science XXXV (2004) 1399.pdf.
  44. Baker, V., et al. 2002. A THEORY FOR THE GEOLOGICAL EVOLUTION OF MARS AND RELATED SYNTHESIS (GEOMARS). Lunar and Planetary Science XXXIII (2002). 1586pdf.
  45. "ESA Science & Technology - Martian Interior".
  46. Pye, Kenneth; Haim Tsoar (2008). Aeolian Sand and Sand Dunes. Springer. p. 138. ISBN   9783540859109.
  47. "Barchan | sand dune".
  48. Mellon, J. T.; Feldman, W. C.; Prettyman, T. H. (2003). "The presence and stability of ground ice in the southern hemisphere of Mars". Icarus. 169 (2): 324–340. Bibcode:2004Icar..169..324M. doi:10.1016/j.icarus.2003.10.022.
  49. 1 2 "The Surface of Mars" Series: Cambridge Planetary Science (No. 6) ISBN   978-0-511-26688-1 Michael H. Carr, United States Geological Survey, Menlo Park
  50. Kieffer, H., et al. 1992. Mars. University of Arizona Press. Tucson. ISBN   0-8165-1257-4
  51. Milliken, R. E.; Mustard, J. F.; Goldsby, D. L. (2003). "Viscous flow features on the surface of Mars: Observations from high-resolution Mars Orbiter Camera (MOC) images". Journal of Geophysical Research. 108 (E6): 5057. Bibcode:2003JGRE..108.5057M. doi:10.1029/2002je002005.
  52. Squyres, S.W.; Carr, M.H. (1986). "Geomorphic evidence for the distribution of ground ice on Mars". Science. 213 (4735): 249–253. Bibcode:1986Sci...231..249S. doi:10.1126/science.231.4735.249. PMID   17769645. S2CID   34239136.
  53. Head, J.W.; Marchant, D.R.; Dickson, J.L.; Kress, A.M. (2010). "Criteria for the recognition of debris-covered glacier and valley glacier landsystem deposits". Earth Planet. Sci. Lett. 294 (3–4): 306–320. Bibcode:2010E&PSL.294..306H. doi:10.1016/j.epsl.2009.06.041.
  54. Holt, J.W.; et al. (2008). "Radar sounding evidence for buried glaciers in the southern mid-latitudes of Mars". Science. 322 (5905): 1235–1238. Bibcode:2008Sci...322.1235H. doi:10.1126/science.1164246. hdl:11573/67950. PMID   19023078. S2CID   36614186.
  55. Morgan, G.A.; Head, J.W.; Marchant, D.R. (2009). "Lineated valley fill (LVF) and lobate debris aprons (LDA) in the Deuteronilus Mensae northern dichotomy boundary region, Mars: Constraints on the extent, age and episodicity of Amazonian glacial events". Icarus. 202 (1): 22–38. Bibcode:2009Icar..202...22M. doi:10.1016/j.icarus.2009.02.017.
  56. Plaut, J.J.; Safaeinili, A.; Holt, J.W.; Phillips, R.J.; Head, J.W.; Sue, R.; Putzig, A. (2009). "Frigeri Radar evidence for ice in lobate debris aprons in the mid-northern latitudes of Mars". Geophys. Res. Lett. 36 (2): L02203. Bibcode:2009GeoRL..36.2203P. doi: 10.1029/2008gl036379 . S2CID   17530607.
  57. Baker, D.M.H.; Head, J.W.; Marchant, D.R. (2010). "Flow patterns of lobate debris aprons and lineated valley fill north of Ismeniae Fossae, Mars: Evidence for extensive mid-latitude glaciation in the Late Amazonian". Icarus. 207 (1): 186–209. Bibcode:2010Icar..207..186B. doi:10.1016/j.icarus.2009.11.017.
  58. Arfstrom, J. (2005). "Terrestrial analogs and interrelationships". Icarus. 174 (2): 321–335. Bibcode:2005Icar..174..321A. doi:10.1016/j.icarus.2004.05.026.
  59. Irwin, R.; et al. (2004). "2004". J. Geophys. Res. 109 (E12): E12009. Bibcode:2004JGRE..10912009I. doi: 10.1029/2004je002287 .
  60. 1 2 Michalski, J., E. Noe Dobrea1, C. Weitz. 2015. Mg-rich clays and silica-bearing deposits in Eridania basin: Possible evidence for ancient sea deposits in Mars. 46th Lunar and Planetary Science Conference. 2754.pdf
  61. Baker, D., J. Head. 2014. 44th LPSC, abstract #1252
  62. Cuadros, J.; et al. (2013). "Crystal-chemistry of interstratified Mg/Fe-clay minerals from seafloor hydrothermal sites" (PDF). Chem. Geol. 360–361: 142–158. Bibcode:2013ChGeo.360..142C. doi:10.1016/j.chemgeo.2013.10.016.
  63. Connerney, J.; et al. (2005). "Tectonic implications of Mars crustal magnetism". Proc. Natl. Acad. Sci. USA. 102 (42): 14970–14975. Bibcode:2005PNAS..10214970C. doi: 10.1073/pnas.0507469102 . PMC   1250232 . PMID   16217034.
  64. Hahn, B.; et al. (2011). "Martian surface heat production and crustal heat flow from Mars Odyssey Gamma-Ray spectrometry". Geophys. Res. Lett. 38 (14): L14203. Bibcode:2011GeoRL..3814203H. doi: 10.1029/2011gl047435 .
  65. Staudigel, H. 2013. Treatise on Geochemistry 2nd edn, Vol. 4 (eds Holland, H. & Turekian, K.), 583–606.
  66. Taylor, G.; et al. (2006). "Variations in K/Th on Mars". J. Geophys. Res. 111 (E3): 1–20. Bibcode:2006JGRE..111.3S06T. doi: 10.1029/2006JE002676 .
  67. Mars Study Yields Clues to Possible Cradle of Life. NASA News, 6 October 2017.
  68. Michalski, JR; Dobrea, EZN; Niles, PB; Cuadros, J (2017). "Ancient hydrothermal seafloor deposits in Eridania basin on Mars". Nat Commun. 8: 15978. Bibcode:2017NatCo...815978M. doi:10.1038/ncomms15978. PMC   5508135 . PMID   28691699.
  69. Morden, S. 2022. The Red Planet. Pegasus Books. New York.
  70. Hecht, M (2002). "Metastability of water on Mars". Icarus. 156 (2): 373–386. Bibcode:2002Icar..156..373H. doi:10.1006/icar.2001.6794.
  71. Mustard, J.; et al. (2001). "Evidence for recent climate change on Mars from the identification of youthful near-surface ground ice". Nature. 412 (6845): 411–414. Bibcode:2001Natur.412..411M. doi:10.1038/35086515. PMID   11473309. S2CID   4409161.
  72. Pollack, J.; Colburn, D.; Flaser, F.; Kahn, R.; Carson, C.; Pidek, D. (1979). "Properties and effects of dust suspended in the martian atmosphere". J. Geophys. Res. 84: 2929–2945. Bibcode:1979JGR....84.2929P. doi:10.1029/jb084ib06p02929.
  73. "HiRISE | Layered Mantling Deposits in the Northern Mid-Latitudes (ESP_048897_2125)".
  74. "HiRISE | Mantled Craters in Terra Cimmeria (PSP_006736_1325)".
  75. Baker, V.; et al. (2015). "Fluvial geomorphology on Earth-like planetary surfaces: a review". Geomorphology. 245: 149–182. Bibcode:2015Geomo.245..149B. doi:10.1016/j.geomorph.2015.05.002. PMC   5701759 . PMID   29176917.
  76. Carr, M. 1996. in Water on Mars. Oxford Univ. Press.
  77. Baker, V. 1982. The Channels of Mars. Univ. of Tex. Press, Austin, TX
  78. Baker, V.; Strom, R.; Gulick, V.; Kargel, J.; Komatsu, G.; Kale, V. (1991). "Ancient oceans, ice sheets and the hydrological cycle on Mars". Nature. 352 (6336): 589–594. Bibcode:1991Natur.352..589B. doi:10.1038/352589a0. S2CID   4321529.
  79. Carr, M (1979). "Formation of Martian flood features by release of water from confined aquifers". J. Geophys. Res. 84: 2995–300. Bibcode:1979JGR....84.2995C. doi:10.1029/jb084ib06p02995.
  80. Komar, P (1979). "Comparisons of the hydraulics of water flows in Martian outflow channels with flows of similar scale on Earth". Icarus. 37 (1): 156–181. Bibcode:1979Icar...37..156K. doi:10.1016/0019-1035(79)90123-4.
  81. "How Much Water Was Needed to Carve Valleys on Mars? - SpaceRef". 5 June 2017.[ permanent dead link ]
  82. Luo, W.; et al. (2017). "New Martian valley network volume estimate consistent with ancient ocean and warm and wet climate". Nature Communications. 8: 15766. Bibcode:2017NatCo...815766L. doi:10.1038/ncomms15766. PMC   5465386 . PMID   28580943.
  83. Morton, Oliver (2002). Mapping Mars: Science, Imagination, and the Birth of a World. New York: Picador USA. p. 98. ISBN   0-312-24551-3.
  84. "Online Atlas of Mars". Ralphaeschliman.com. Retrieved December 16, 2012.
  85. "PIA03467: The MGS MOC Wide Angle Map of Mars". Photojournal. NASA /Jet Propulsion Laboratory. February 16, 2002. Retrieved December 16, 2012.
  86. "Online Atlas of Mars". Ralphaeschliman.com. Retrieved December 16, 2012.
  87. "PIA03467: The MGS MOC Wide Angle Map of Mars". Photojournal. NASA /Jet Propulsion Laboratory. February 16, 2002. Retrieved December 16, 2012.

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