Difference between revisions of "November 15, 2009"
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=Hills, Troughs And a Collapse= | =Hills, Troughs And a Collapse= | ||
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| − | <em>image from [http://wms.selene.jaxa.jp/selene_viewer/jpn/observation_mission/tc/tc_046.html JAXA-Kaguya Image Gallery]</em><br /> | + | <em>image from [http://wms.selene.jaxa.jp/selene_viewer/jpn/observation_mission/tc/tc_046.html" rel="nofollow JAXA-Kaguya Image Gallery]</em><br /> |
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| − | Looking like a superb Chesley Bonestell painting, this oblique view of [http://www.lpod.org/coppermine/albums/userpics/Marius_Hills_IV-157-H2.jpg Marius Hills rilles] is a perspective view constructed from real data. Using Terrain Camera stereo images, Kaguya scientists created a digital terrain map, and then an image was draped over it, allowing computer views from any angle. At left front is a <em>Cobra Head-like</em> depression that was the source vent for a barely sinuous rille that deposited the flat-lying lavas that surround the older rough domes such as the one at front right. Between the rille vent and dome is an odd gentle-sloped depression with a central hill, conceivably an impact crater overflown by lavas, but more likely a volcanic collapse crater. The shadow-filled crater near the summit of the dome appears to be an impact crater, as are most of the shadow-filled craters in the scene. At left center the rille bends sharply where it intersects a mare ridge. From this view it is possible that the ridge formed after the rille, but high resolution Orbiter V [http://www.lpi.usra.edu/resources/lunarorbiter/frame/?5214 images] suggests that the rille cuts the ridge. But it is hard to understand how a rille - which always flows downhill - could cut through the higher ridge, so I suppose that the ridge has uplifted the rille. I almost believe that, but I bet that the ridge was there first and it somehow diverted the flowing lava and its rille. What do you think?<br /> | + | Looking like a superb Chesley Bonestell painting, this oblique view of [http://www.lpod.org/coppermine/albums/userpics/Marius_Hills_IV-157-H2.jpg" rel="nofollow Marius Hills rilles] is a perspective view constructed from real data. Using Terrain Camera stereo images, Kaguya scientists created a digital terrain map, and then an image was draped over it, allowing computer views from any angle. At left front is a <em>Cobra Head-like</em> depression that was the source vent for a barely sinuous rille that deposited the flat-lying lavas that surround the older rough domes such as the one at front right. Between the rille vent and dome is an odd gentle-sloped depression with a central hill, conceivably an impact crater overflown by lavas, but more likely a volcanic collapse crater. The shadow-filled crater near the summit of the dome appears to be an impact crater, as are most of the shadow-filled craters in the scene. At left center the rille bends sharply where it intersects a mare ridge. From this view it is possible that the ridge formed after the rille, but high resolution Orbiter V [http://www.lpi.usra.edu/resources/lunarorbiter/frame/?5214" rel="nofollow images] suggests that the rille cuts the ridge. But it is hard to understand how a rille - which always flows downhill - could cut through the higher ridge, so I suppose that the ridge has uplifted the rille. I almost believe that, but I bet that the ridge was there first and it somehow diverted the flowing lava and its rille. What do you think?<br /> |
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| − | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | + | <em>[mailto:tychocrater@yahoo.com" rel="nofollow Chuck Wood]</em><br /> |
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<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
Rükl plate [http://the-moon.wikispaces.com/R%C3%BCkl+29 29]<br /> | Rükl plate [http://the-moon.wikispaces.com/R%C3%BCkl+29 29]<br /> | ||
| − | One of the [http://wms.selene.jaxa.jp/selene_viewer/jpn/observation_mission/tc/046/tc_046_4.jpg vertical view] Kaguya images that the stereo map was made from.<br /> | + | One of the [http://wms.selene.jaxa.jp/selene_viewer/jpn/observation_mission/tc/046/tc_046_4.jpg" rel="nofollow vertical view] Kaguya images that the stereo map was made from.<br /> |
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| − | <div>You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591 LPOD!]<br /> | + | <div>You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591" rel="nofollow LPOD!]<br /> |
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===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 18:15, 4 January 2015
Hills, Troughs And a Collapse
image from " rel="nofollow JAXA-Kaguya Image Gallery
Looking like a superb Chesley Bonestell painting, this oblique view of " rel="nofollow Marius Hills rilles is a perspective view constructed from real data. Using Terrain Camera stereo images, Kaguya scientists created a digital terrain map, and then an image was draped over it, allowing computer views from any angle. At left front is a Cobra Head-like depression that was the source vent for a barely sinuous rille that deposited the flat-lying lavas that surround the older rough domes such as the one at front right. Between the rille vent and dome is an odd gentle-sloped depression with a central hill, conceivably an impact crater overflown by lavas, but more likely a volcanic collapse crater. The shadow-filled crater near the summit of the dome appears to be an impact crater, as are most of the shadow-filled craters in the scene. At left center the rille bends sharply where it intersects a mare ridge. From this view it is possible that the ridge formed after the rille, but high resolution Orbiter V " rel="nofollow images suggests that the rille cuts the ridge. But it is hard to understand how a rille - which always flows downhill - could cut through the higher ridge, so I suppose that the ridge has uplifted the rille. I almost believe that, but I bet that the ridge was there first and it somehow diverted the flowing lava and its rille. What do you think?
" rel="nofollow Chuck Wood
Related Links
Rükl plate 29
One of the " rel="nofollow vertical view Kaguya images that the stereo map was made from.
COMMENTS?
Click on this icon File:PostIcon.jpg at the upper right to post a comment.
