Highest and Lowest Points on Mars


	Highest and Lowest Points on Mars
amgumen
1-16-2008 7:38 PM
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tags:
space, science, mars, volcanoes
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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/16d772c0-0dfd-49f2-a7af-0f7ff9c61b3e/2D441D3A-780D-4DB5-94B8-225683462E5C/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://geology.com/articles/highest-point-on-mars.shtml" href="http://geology.com/articles/highest-point-on-mars.shtml" style="font-size: 11px;">geology.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml">The lowest point was blasted by an enormous asteroid impact which formed the <A href="http://geology.com/articles/highest-point-on-mars.shtml#mars-low-point">Hellas Impact Crater</A>. The highest point was built by  repeated eruptions of <A href="http://geology.com/articles/highest-point-on-mars.shtml#mars-high-point">Olymus Mons</A>, the  largest volcano in our solar system. Although Mars is a  smaller planet than Earth, the heights and depths of these  features are enormous in compariso</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/geology.com/img/C664B60D-57A9-4713-AE4F-4F3FD5111A00" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/geology.com/img/DD23F66C-148D-4469-875C-ADB45E24AACC" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml">On Mars there is no sea level to serve as a reference.
Instead a substitute datum is use.  This datum is known as the Mars areoid.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml">
 The Mars areoid represents an equipotential surface of the Goddard Mars Gravity Model. The Mars areoid is an imaginary sphere with a  center that coincides with the center of Mars and a radius of 3,396,000 meters. We can think of it as a reference elevation, similar to the zero elevation on Earth being mean sea level.  (The radius used for the Mars areoid is very close to the average radius of Mars along its equator. That value is 3,396,196 meters.)</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><H2 class="style2">Olympus Mons Volcano - Highest Point on Mars</H2></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/geology.com/img/F5E11896-0B9E-4A64-8D45-E15CC6D225E5" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/geology.com/img/AEC175E4-0BD6-4DA3-8072-1A59B17AC50B" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/geology.com/img/31432E39-7006-41DD-8870-4FF67A33AD13" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><H2 class="style2">Hellas Impact Crater - Lowest Point on Mars</H2></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/geology.com/img/7E27FC97-86EC-42C6-A8EF-87510DBBD427" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://geology.com/articles/highest-point-on-mars.shtml"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/geology.com/img/31A58224-A1F8-4866-B4BA-B025CD72E5D9" alt="" /></div></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/2D441D3A-780D-4DB5-94B8-225683462E5C/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
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