Margaritifer Sinus quadrangle - Revision history

Suitupshowup at 14:09, 24 January 2025

2025-01-24T14:09:49Z

Suitupshowup: added image

2024-12-18T16:24:28Z

added image

Suitupshowup: /* Other landscapes in Margaritifer Sinus quadrangle */

2023-12-24T22:46:37Z

Other landscapes in Margaritifer Sinus quadrangle

Suitupshowup: /* Other landscapes in Margaritifer Sinus quadrangle */

2023-12-24T22:46:08Z

Other landscapes in Margaritifer Sinus quadrangle

Suitupshowup: /* Other landscapes in Margaritifer Sinus quadrangle */ added image

2023-11-25T01:36:26Z

Other landscapes in Margaritifer Sinus quadrangle: added image

Suitupshowup: /* Layers */ added image

2023-11-25T01:35:04Z

Layers: added image

Michel Lamontagne at 04:39, 20 August 2021

2021-08-20T04:39:42Z

Michel Lamontagne at 04:38, 20 August 2021

2021-08-20T04:38:08Z

Michel Lamontagne at 04:35, 20 August 2021

2021-08-20T04:35:40Z

Suitupandshowup at 13:06, 3 December 2020

2020-12-03T13:06:15Z

← Older revision		Revision as of 14:09, 24 January 2025
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	Article written by Jim Secosky. Jim is a retired science teacher who has used the Hubble Space Telescope, the Mars Global Surveyor, and HiRISE.		Article written by Jim Secosky. Jim is a retired science teacher who has used the Hubble Space Telescope, the Mars Global Surveyor, and HiRISE.
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		+	In this article, some of the best pictures from a number of spacecraft will show what the landscape looks like in this region. The origins and significance of all features will be explained as they are currently understood.

	[[File:Collage Margaritifer Sinus 02.jpg\|Features of Features of Magaritifer Sinus quadrangle, as seen by HiRISE under under HiWish program\|600pxr\| Features of Magaritifer Sinus quadrangle]]		[[File:Collage Margaritifer Sinus 02.jpg\|Features of Features of Magaritifer Sinus quadrangle, as seen by HiRISE under under HiWish program\|600pxr\| Features of Magaritifer Sinus quadrangle]]

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-Article written by Jim Secosky. Jim is a retired science teacher who has used the Hubble Space Telescope, the Mars Global Surveyor, and HiRISE.<gallery widths="400" heights="300">
+Article written by Jim Secosky. Jim is a retired science teacher who has used the Hubble Space Telescope, the Mars Global Surveyor, and HiRISE.
 File:Margaritifer Sinus.png
 File:PIA00179-MC-19-MargaritiferSinusRegion-19980605.jpg

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 File:ESP 045299 1545coloredclose.jpg|Color image of patterned ground, as seen by HiRISE under HiWish program
 </gallery>
 ==See also==

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 File:WikiESP 039563 1730yardangs.jpg|Yardangs formed in light-toned material and surrounded by dark, volcanic basalt sand, as seen by HiRISE under HiWish program
 File:WikiESP 039563 1730yardangsclose.jpg|Close-up image of yardangs, as seen by HiRISE under HiWish program.  Arrows point to transverse aeolian ridges.  TAR's are a type of dune.  Note this is an enlargement of the previous image from HiRISE.
+File:ESP 045299 1545coloredclose.jpg|Color image of patterned ground, as seen by HiRISE under HiWish program
 </gallery>

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 <gallery class="center" widths="380px" heights="360px">
 File:Wikiarsinoesfanswide.jpg|Light-toned deposit in Arsinoes Chaos, as seen by CTX camera (on Mars Reconnaissance Orbiter).
 File:WikiESP 039563 1730yardangs.jpg|Yardangs formed in light-toned material and surrounded by dark, volcanic basalt sand, as seen by HiRISE under HiWish program
 File:WikiESP 039563 1730yardangsclose.jpg|Close-up image of yardangs, as seen by HiRISE under HiWish program.  Arrows point to transverse aeolian ridges.  TAR's are a type of dune.  Note this is an enlargement of the previous image from HiRISE.

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 File:47633 1765layersclose.jpg|Close view of layers and light-toned material  Light-toned material is often a sign of past water.
 File:47633 1765layerswide.jpg|Close view of layers
 </gallery>

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 In this article, some of the best pictures from a number of spacecraft will show what the landscape looks like in this region. The origins and significance of all features will be explained as they are currently understood.
-The name of this quadrangle means "pearl bay" after the pearl coast at Cape Comorin in South India <ref>Blunck, J.  1982.  Mars and its Satellites.  Exposition Press.  Smithtown, N.Y.</ref>
+The name of this quadrangle means "pearl bay" after the pearl coast at Cape Comorin in South India.<ref>Blunck, J.  1982.  Mars and its Satellites.  Exposition Press.  Smithtown, N.Y.</ref>
 This quadrangle shows many signs of past water with evidence of lakes, deltas, ancient rivers, inverted channels, and chaos regions that released water.<ref>Grotzinger, J. and R. Milliken (eds.)  2012.  Sedimentary Geology of Mars.  SEPM</ref>   Margaritifer Sinus contains some of the longest lake-chain systems on Mars, perhaps because of a wetter climate, more groundwater, or some of each factor.  The Samara/Himera lake-chain system is about 180 km long, and the Parara/Loire valley network and lake-chain system is about 1100km in length.<ref>[http://linkinghub.elsevier.com/retrieve/pii/S0019103508002728 Fassett, C. and J. Head III.  2008.  Valley network-fed, open-basin lakes on Mars:  Distribution and implications for Noachian surface and subsurface hydrology.  Icarus: 198.  39-56.</ref> A low area between Parana Valle and Loire Vallis is believed to have once held a lake.<ref>[http://linkinghub.elsevier.com/retrieve/pii/S0019103500964650 Goldspiel, J. and S. Squyres.  2000.  Groundwater sapping and valley formation on Mars.  Icarus.  89: 176-192. </ref> <ref name="Carr2006">Michael H. Carr|title=The surface of Mars|url=https://books.google.com/books?id=uLHlJ6sjohwC|accessdate=21 March 2011|date=2006|publisher=Cambridge University Press|isbn=978-0-521-87201-0</ref> The 154 km diameter Holden Crater also once held a lake.<ref>Cabrol, N. and E. Grin (eds.).  2010.  Lakes on Mars.  Elsevier.  NY.</ref>  Near Holden Crater is a graben, called Erythraea Fossa, that once held a chain of three lakes.<ref>Buhler, P. et al.  2011.  Evidence for paleolakes in Erythracea Fossa, Mars: Implications for an ancient hydrological cycle.  Icarus.  213: 104-115.</ref>