http://marspedia.org/api.php?hidebots=1&urlversion=1&days=7&limit=50&target=Mare_Acidalium_quadrangle&action=feedrecentchanges&feedformat=atomMarspedia - Changes related to "Mare Acidalium quadrangle" [en]2024-03-29T07:44:06ZRelated changesMediaWiki 1.34.2http://marspedia.org/index.php?title=Ismenius_Lacus_quadrangle&diff=140926&oldid=140854Ismenius Lacus quadrangle2024-03-28T13:01:05Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Scattered around Mars are features that have been called "dipping layers" <del class="diffchange diffchange-inline"> </del>They are groups of layers in protected place like inside of craters or against slopes. <del class="diffchange diffchange-inline">They once covered a wide area</del>, <del class="diffchange diffchange-inline">but erosion has since removed most of the material</del>. The material that formed them may <del class="diffchange diffchange-inline">fell </del>from the sky as ice-rich dust.<ref>Carr, M. 2001. Mars Global Surveyor observations of martian fretted terrain. J. Geophys. Res. 106, 23571-23593.</ref> <ref>Baker, D., J. Head. 2015. Extensive Middle Amazonian mantling of debris aprons and plains in Deuteronilus Mensae, Mars: Implication for the record of mid-latitude glaciation. Icarus: 260, 269-288</ref> </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Scattered around Mars are features that have been called "dipping layers<ins class="diffchange diffchange-inline">.</ins>" They are groups of layers in protected place like inside of craters or against slopes. <ins class="diffchange diffchange-inline">Several ideas have been advanced for how they were formed.<ref> R.J. Soare et al. 2013. Sub-kilometre (intra-crater) mounds in Utopia Planitia, Mars: character, occurrence and possible formation hypotheses, Icarus, 225</ins>, <ins class="diffchange diffchange-inline">982–991</ins>.<ins class="diffchange diffchange-inline"></ref> </ins> The material that formed them may <ins class="diffchange diffchange-inline">have dropped </ins>from the sky as ice-rich dust.<ins class="diffchange diffchange-inline"><ref>Morgenstern, A,, et al. 2007. Deposition and degradation of a volatile-rich layer in Utopia Planitia and implications for climate history on Mars. Journal of Geophysical Research Planets. Volume 112. IssueE6</ref> </ins><ref>Carr, M. 2001. <ins class="diffchange diffchange-inline">"</ins>Mars Global Surveyor observations of martian fretted terrain<ins class="diffchange diffchange-inline">"</ins>. <ins class="diffchange diffchange-inline">''</ins>J. Geophys. Res.<ins class="diffchange diffchange-inline">'' </ins>106, 23571-23593.</ref> <ref>Baker, D., J. Head. 2015. <ins class="diffchange diffchange-inline">"</ins>Extensive Middle Amazonian mantling of debris aprons and plains in Deuteronilus Mensae, Mars: Implication for the record of mid-latitude glaciation<ins class="diffchange diffchange-inline">"</ins>. <ins class="diffchange diffchange-inline">''</ins>Icarus<ins class="diffchange diffchange-inline">''</ins>: 260, 269-288</ref> <ins class="diffchange diffchange-inline">They once covered a wide area, but erosion has since removed most of the material. Another idea for their origin was presented at 55th LPSC (2024) by an international team of researchers. They suggest that the layers are from past ice sheets.<ref>Blanc, E., et al. 2024. ORIGIN OF WIDESPREAD LAYERED DEPOSITS ASSOCIATED WITH MARTIAN DEBRIS COVERED GLACIERS. 55th LPSC (2024). 1466.pdf</ref> </ins></div></td></tr>
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</table>Suitupshowuphttp://marspedia.org/index.php?title=HiWish_program&diff=140914&oldid=140849HiWish program2024-03-27T17:20:16Z<p><span dir="auto"><span class="autocomment">Dipping Layers: </span> added info and ref</span></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 17:20, 27 March 2024</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>A common feature on Mars is “dipping layers.” They are groups or stacks of layers that seem to be leaning against something steep like a crater wall or the wall of a mesa. It is believed that they represent material that once covered a wide area, but is now only in protected places. The layers mean that different events laid down the layers. These layers are probably due to latitude dependent mantle that falls from the sky at different times. Mantle is mostly from ice-coated dust falling from the sky under certain climate conditions. These dipping layers are often smooth from the action of the wind over millions of years.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>A common feature on Mars is “dipping layers.” They are groups or stacks of layers that seem to be leaning against something steep like a crater wall or the wall of a mesa. It is believed that they represent material that once covered a wide area, but is now only in protected places. The layers mean that different events laid down the layers. These layers are probably due to latitude dependent mantle that falls from the sky at different times. Mantle is mostly from ice-coated dust falling from the sky under certain climate conditions. These dipping layers are often smooth from the action of the wind over millions of years. <ins class="diffchange diffchange-inline"> Another idea for their origin was presented at 55th LPSC (2024) by an international team of researchers. They suggest that the layers are from past ice sheets.<ref>Blanc, E., et al. 2024. ORIGIN OF WIDESPREAD LAYERED DEPOSITS ASSOCIATED WITH MARTIAN DEBRIS COVERED GLACIERS. 55th LPSC (2024). 1466.pdf</ref> </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:ESP 038002 1375dipping.jpg|thumb|300px|left|Wide view of dipping layers against slopes]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:ESP 038002 1375dipping.jpg|thumb|300px|left|Wide view of dipping layers against slopes]]</div></td></tr>
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