Difference between revisions of "November 5, 2010"
| Line 2: | Line 2: | ||
=Is It or Isn't It?= | =Is It or Isn't It?= | ||
| − | + | <!-- ws:start:WikiTextHeadingRule:1:<h1> --> | |
| − | + | <!-- ws:start:WikiTextLocalImageRule:16:<img src="/file/view/LPOD-Nov5-10.jpg/176662579/LPOD-Nov5-10.jpg" alt="" title="" /> -->[[File:LPOD-Nov5-10.jpg|LPOD-Nov5-10.jpg]]<!-- ws:end:WikiTextLocalImageRule:16 --><br /> | |
<em>LRO (top) and Lunar Orbiter IV (below) images from [http://lroc.sese.asu.edu/news/index.php?/archives/305-Gassendis-Central-Peak.html LRO Featured Image] (NASA/GSFC/ASU)</em><br /> | <em>LRO (top) and Lunar Orbiter IV (below) images from [http://lroc.sese.asu.edu/news/index.php?/archives/305-Gassendis-Central-Peak.html LRO Featured Image] (NASA/GSFC/ASU)</em><br /> | ||
<br /> | <br /> | ||
| Line 14: | Line 14: | ||
<br /> | <br /> | ||
<hr /> | <hr /> | ||
| − | + | <table class="wiki_table"> | |
| − | + | <tr> | |
| + | <td><!-- ws:start:WikiTextMediaRule:0:<img src="http://www.wikispaces.com/site/embedthumbnail/custom/4814793?h=0&w=0" class="WikiMedia WikiMediaCustom" id="wikitext@@media@@type=&quot;custom&quot; key=&quot;4814793&quot;" title="Custom Media"/> --><!-- ws:end:WikiTextMediaRule:0 --><br /> | ||
| + | </td> | ||
| + | <td><!-- ws:start:WikiTextHeadingRule:3:<h3> --><h3 id="toc1"><!-- ws:end:WikiTextHeadingRule:3 -->COMMENTS?</h3> | ||
| + | Click the <strong>Discussion</strong> tab above.<br /> | ||
| + | <hr /> | ||
| + | The rotating globe shows locations of folks who visit LPOD. The most recent visits include location names - so you can see who else is on when you visit. For example, if you see "Wheeling/ West Virginia" I am probably editing an LPOD. After a few minutes just a small red dot appears.<br /> | ||
| + | <br /> | ||
| + | <hr /> | ||
| + | You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591 LPOD!]<br /> | ||
| + | </td> | ||
| + | </tr> | ||
| + | </table> | ||
| + | </div> | ||
---- | ---- | ||
===COMMENTS?=== | ===COMMENTS?=== | ||
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment. | Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment. | ||
Revision as of 21:14, 2 January 2015
Is It or Isn't It?
LRO (top) and Lunar Orbiter IV (below) images from LRO Featured Image (NASA/GSFC/ASU)
The southern rim of Gassendi is low and on some images seems to disappear. If that is true it would explain how the dark mare lava got inside the crater rim - it just flowed in from Mare Humorum. But other images seem to pretty clearly show that the rim is there, so that the lava must have come up inside the rim along fractures associated with the formation of Gassendi. The LRO Wide Angle Camera provides the latest piece of evidence(above) in this controversy. The lowest part of the rim is much darker than the adjacent bright rim segments so that in high Sun views such as this the rim does disappear. On the lower Sun view of the antique Lunar Orbiter view (below) the dark ridge is really there. But it is very similar in tone to the lava on both sides of the rim. Is it possible that Humorum lavas slurped over the low part of the rim and flowed into Gassendi? I doubt it. But on the WAC image look just north of the low spot notice a ridge that is darker than its neighbors. Is this area covered by dark lava or perhaps pyroclastics?
Chuck Wood
Related Links
Rükl plate 52
COMMENTS?Click the Discussion tab above. The rotating globe shows locations of folks who visit LPOD. The most recent visits include location names - so you can see who else is on when you visit. For example, if you see "Wheeling/ West Virginia" I am probably editing an LPOD. After a few minutes just a small red dot appears. You can support LPOD when you buy any book from Amazon thru LPOD! |
COMMENTS?
Click on this icon File:PostIcon.jpg at the upper right to post a comment.
