Diacria quadrangle - Revision history

Suitupshowup at 15:56, 24 January 2025

2025-01-24T15:56:44Z

Suitupshowup at 14:17, 24 January 2025

2025-01-24T14:17:49Z

Suitupshowup: added image

2024-11-19T22:48:38Z

added image

Suitupshowup: /* Ice exposed in new craters */ added image

2024-03-27T21:50:09Z

Ice exposed in new craters: added image

Suitupshowup: /* Brain terrain */

2023-12-24T19:17:38Z

Brain terrain

Suitupshowup: /* Other scenes in Diacria quadrangle */

2023-12-24T19:15:32Z

Other scenes in Diacria quadrangle

Suitupshowup: /* Other scenes in Diacria quadrangle */

2023-12-24T19:14:54Z

Other scenes in Diacria quadrangle

Suitupshowup at 12:54, 23 December 2023

2023-12-23T12:54:07Z

Suitupshowup: added image

2023-12-23T12:52:38Z

added image

Suitupshowup at 12:48, 23 December 2023

2023-12-23T12:48:48Z

@@ Line 27: / Line 27: @@
 Diacria is the name of a classical albedo features on Mars located at 48° N and 190° E (170 W) on Mars. The feature was named by Greek astronomer E. M.  Antoniadi in 1930 after Diacria, the highlands around Marathon, Greece  in north-west  Attica, Greece. The name was approved by the International Astronomical Union (IAU) in 1958.<ref>USGS Gazetteer of Planetary Nomenclature. Mars. http://planetarynames.wr.usgs.gov/.</ref>
-[[File:Collage Diacria quadrangle 04.jpg|Typical features of Diacria quadrangle as seen by HiRISE under under HiWish program|600pxr| Typical features of Diacria quadrangle]]
+[[File:Collagediacria 01.jpg|Typical features of Diacria quadrangle as seen by HiRISE under under HiWish program|600pxr| Typical features of Diacria quadrangle]]
                            Typical features of Diacria quadrangle

@@ Line 9: / Line 9: @@
 |[[Mars Atlas|Atlas]]
 |}
-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:USGS-Mars-MC-2-DiacriaRegion-mola.png| Topographic Map of Diacria Quadrangle Colors relate to elevation
 File:PIA00162-Mars-MC-2-DiacriaRegion-19980604.jpg|Image of the Diacria Quadrangle (MC-2). The southeastern part is marked by aureole deposits of the largest known volcano in the solar system, [[Olympus Mons]]

← Older revision		Revision as of 22:48, 19 November 2024
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	Diacria is the name of a classical albedo features on Mars located at 48° N and 190° E (170 W) on Mars. The feature was named by Greek astronomer E. M. Antoniadi in 1930 after Diacria, the highlands around Marathon, Greece in north-west Attica, Greece. The name was approved by the International Astronomical Union (IAU) in 1958.<ref>USGS Gazetteer of Planetary Nomenclature. Mars. http://planetarynames.wr.usgs.gov/.</ref>		Diacria is the name of a classical albedo features on Mars located at 48° N and 190° E (170 W) on Mars. The feature was named by Greek astronomer E. M. Antoniadi in 1930 after Diacria, the highlands around Marathon, Greece in north-west Attica, Greece. The name was approved by the International Astronomical Union (IAU) in 1958.<ref>USGS Gazetteer of Planetary Nomenclature. Mars. http://planetarynames.wr.usgs.gov/.</ref>
		+
		+	[[File:Collage Diacria quadrangle 04.jpg\|Typical features of Diacria quadrangle as seen by HiRISE under under HiWish program\|600pxr\| Typical features of Diacria quadrangle]]
		+
		+	Typical features of Diacria quadrangle
		+

	==Geologic Setting==		==Geologic Setting==

@@ Line 127: / Line 127: @@
 A study reported in the journal Science in 2009 shows that some newly formed craters have excavated clean, water ice from just below the surface in five locations on Mars. <ref>Byrne, S. et al.  2009.  Distribution of Mid-Latitude Ground Ice on Mars from New Impact Craters: 329.1674-1676</ref>  After a short time, the ice disappears, subliming into the atmosphere.  The ice is only a few meters deep.  The ice was confirmed with the Compact Imaging Spectrometer (CRISM) on board the [[Mars Reconnaissance Orbiter]] (MRO).  The ice was found in a total of 5 locations.  One of the locations (Site 5) is in the Diacria quadrangle at about 46° N, 182° E (178 W).<ref>http://www.space.com/scienceastronomy/090924-mars-crater-ice.html</ref><ref>http://news.aol.com/article/nasa-spacecraft-sees-ice-on-mars-exposed/686020</ref> <ref>http://nasa.gov/mission/MRO/news/mro20090924.html</ref>
 This discovery is significant because it shows the presence of subsurface ice at latitudes further south than expected and proves that future colonists on Mars will be able to obtain water from a wide variety of locations.  The ice can be dug up, melted, and then taken apart to provide fresh oxygen and hydrogen for rocket fuel.  Hydrogen is the powerful fuel used by the space shuttle main engines.  Robotic machines may just be sent out to gather water for colonists.
 ==Dark slope streaks==

← Older revision		Revision as of 19:17, 24 December 2023
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−	~~[[File:ESP 054996 2155brainswide.jpg\|thumb\|400px\|left\|Wide view of brain terrain]]~~	+

	[[File:54996 2155brainscolor.jpg\|thumb\|400px\|center\|Close, color view of brain terrain, as seen by HiRISE under HiWish program]]		[[File:54996 2155brainscolor.jpg\|thumb\|400px\|center\|Close, color view of brain terrain, as seen by HiRISE under HiWish program]]

← Older revision		Revision as of 19:15, 24 December 2023
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	</gallery>		</gallery>
−
−
−	~~[[File:ESP 055522 1400ridge.jpg\|thumb\|400px\|right\|Ridges that may represent dikes Dikes are caused by magma moving underground]]~~
−
−	[[File:ESP 057250 2165cracks.jpg\|thumb\|400px\|center\|Large and small cracks, as seen by HiRISE under HiWish program After a small crack appears, sublimation along crack surfaces greatly increases the size of the crack. In other words, ice disappears into the air (by the process of sublimation), and then wind removes dust.]]

	==See also==		==See also==

← Older revision		Revision as of 19:14, 24 December 2023
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	==Other scenes in Diacria quadrangle==		==Other scenes in Diacria quadrangle==
		+
		+	<gallery class="center" widths="380px" heights="360px">
		+
		+	File:ESP 055522 1400ridge.jpg\|Ridges that may represent dikes Dikes are caused by magma moving underground
		+
		+	File:ESP 057250 2165cracks.jpg\|Large and small cracks, as seen by HiRISE After a small crack appears, sublimation along crack surfaces greatly increases the size of the crack. In other words, ice disappears into the air (by the process of sublimation), and then wind removes dust.
		+
		+	</gallery>

@@ Line 123: / Line 123: @@
 [[File:Iceincraterscomparison.jpg|600 pxr|Ice exposed in new crater]]
-                                   Ice exposed in new crater
+   Ice exposed in new crater (photo on right shows ice disappearing)
 A study reported in the journal Science in 2009 shows that some newly formed craters have excavated clean, water ice from just below the surface in five locations on Mars. <ref>Byrne, S. et al.  2009.  Distribution of Mid-Latitude Ground Ice on Mars from New Impact Craters: 329.1674-1676</ref>  After a short time, the ice disappears, subliming into the atmosphere.  The ice is only a few meters deep.  The ice was confirmed with the Compact Imaging Spectrometer (CRISM) on board the [[Mars Reconnaissance Orbiter]] (MRO).  The ice was found in a total of 5 locations.  One of the locations (Site 5) is in the Diacria quadrangle at about 46° N, 182° E (178 W).<ref>http://www.space.com/scienceastronomy/090924-mars-crater-ice.html</ref><ref>http://news.aol.com/article/nasa-spacecraft-sees-ice-on-mars-exposed/686020</ref> <ref>http://nasa.gov/mission/MRO/news/mro20090924.html</ref>

← Older revision		Revision as of 12:52, 23 December 2023
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	==Ice exposed in new craters==		==Ice exposed in new craters==

		+	[[File:Iceincraterscomparison.jpg\|600 pxr\|Ice exposed in new crater]]

		+	Ice exposed in new crater

	A study reported in the journal Science in 2009 shows that some newly formed craters have excavated clean, water ice from just below the surface in five locations on Mars. <ref>Byrne, S. et al. 2009. Distribution of Mid-Latitude Ground Ice on Mars from New Impact Craters: 329.1674-1676</ref> After a short time, the ice disappears, subliming into the atmosphere. The ice is only a few meters deep. The ice was confirmed with the Compact Imaging Spectrometer (CRISM) on board the [[Mars Reconnaissance Orbiter]] (MRO). The ice was found in a total of 5 locations. One of the locations (Site 5) is in the Diacria quadrangle at about 46° N, 182° E (178 W).<ref>http://www.space.com/scienceastronomy/090924-mars-crater-ice.html</ref><ref>http://news.aol.com/article/nasa-spacecraft-sees-ice-on-mars-exposed/686020</ref> <ref>http://nasa.gov/mission/MRO/news/mro20090924.html</ref>		A study reported in the journal Science in 2009 shows that some newly formed craters have excavated clean, water ice from just below the surface in five locations on Mars. <ref>Byrne, S. et al. 2009. Distribution of Mid-Latitude Ground Ice on Mars from New Impact Craters: 329.1674-1676</ref> After a short time, the ice disappears, subliming into the atmosphere. The ice is only a few meters deep. The ice was confirmed with the Compact Imaging Spectrometer (CRISM) on board the [[Mars Reconnaissance Orbiter]] (MRO). The ice was found in a total of 5 locations. One of the locations (Site 5) is in the Diacria quadrangle at about 46° N, 182° E (178 W).<ref>http://www.space.com/scienceastronomy/090924-mars-crater-ice.html</ref><ref>http://news.aol.com/article/nasa-spacecraft-sees-ice-on-mars-exposed/686020</ref> <ref>http://nasa.gov/mission/MRO/news/mro20090924.html</ref>

← Older revision		Revision as of 12:48, 23 December 2023
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	==Ice exposed in new craters==		==Ice exposed in new craters==
		+
		+

	A study reported in the journal Science in 2009 shows that some newly formed craters have excavated clean, water ice from just below the surface in five locations on Mars. <ref>Byrne, S. et al. 2009. Distribution of Mid-Latitude Ground Ice on Mars from New Impact Craters: 329.1674-1676</ref> After a short time, the ice disappears, subliming into the atmosphere. The ice is only a few meters deep. The ice was confirmed with the Compact Imaging Spectrometer (CRISM) on board the [[Mars Reconnaissance Orbiter]] (MRO). The ice was found in a total of 5 locations. One of the locations (Site 5) is in the Diacria quadrangle at about 46° N, 182° E (178 W).<ref>http://www.space.com/scienceastronomy/090924-mars-crater-ice.html</ref><ref>http://news.aol.com/article/nasa-spacecraft-sees-ice-on-mars-exposed/686020</ref> <ref>http://nasa.gov/mission/MRO/news/mro20090924.html</ref>		A study reported in the journal Science in 2009 shows that some newly formed craters have excavated clean, water ice from just below the surface in five locations on Mars. <ref>Byrne, S. et al. 2009. Distribution of Mid-Latitude Ground Ice on Mars from New Impact Craters: 329.1674-1676</ref> After a short time, the ice disappears, subliming into the atmosphere. The ice is only a few meters deep. The ice was confirmed with the Compact Imaging Spectrometer (CRISM) on board the [[Mars Reconnaissance Orbiter]] (MRO). The ice was found in a total of 5 locations. One of the locations (Site 5) is in the Diacria quadrangle at about 46° N, 182° E (178 W).<ref>http://www.space.com/scienceastronomy/090924-mars-crater-ice.html</ref><ref>http://news.aol.com/article/nasa-spacecraft-sees-ice-on-mars-exposed/686020</ref> <ref>http://nasa.gov/mission/MRO/news/mro20090924.html</ref>