Difference between revisions of "January 30, 2006"

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<p>[[File:Shorty panLPOD1.jpg|shorty panLPOD1.jpg]]<br />
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<em>images by Apollo 17 astronauts, mosaicked by[mailto:acgna@comcast.net  Tony Gondola ]</em></p>
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<p>[[File:shorty panLPOD1.jpg|shorty panLPOD1.jpg]]<br />
 
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<em>images by Apollo 17 astronauts, mosaicked by[mailto: acgna@comcast.net  Tony Gondola ]</em></p>
 
 
<p>Shorty Crater is the most colorful crater on the Moon. Whereas lunar surface materials can mostly be described in shades of gray, bright orange soil was visible to Apollo 17 astronauts in the rim of the 110 m wide Shorty Crater. When he discovered it astronaut Harrison Schmitt thought that the orange material was volcanic ash, but he was troubled by the rim’s rocky breccia which is a characteristic of impact craters. Schmitt was doubly right, although the full story didn’t become clear for a few years. The orange soil includes tiny (0.04 mm) glass spheres that vigorously erupted 3.64 billion years ago. The ash formed a layer that was disturbed 30 million years ago when Shorty Crater formed. You have heard of dark-halo craters - Shorty is almost an orange halo crater. Rock debris – and orange soil – have slid downslope, filling the floor with rock-strewn mounds.</p>
 
<p>Shorty Crater is the most colorful crater on the Moon. Whereas lunar surface materials can mostly be described in shades of gray, bright orange soil was visible to Apollo 17 astronauts in the rim of the 110 m wide Shorty Crater. When he discovered it astronaut Harrison Schmitt thought that the orange material was volcanic ash, but he was troubled by the rim’s rocky breccia which is a characteristic of impact craters. Schmitt was doubly right, although the full story didn’t become clear for a few years. The orange soil includes tiny (0.04 mm) glass spheres that vigorously erupted 3.64 billion years ago. The ash formed a layer that was disturbed 30 million years ago when Shorty Crater formed. You have heard of dark-halo craters - Shorty is almost an orange halo crater. Rock debris – and orange soil – have slid downslope, filling the floor with rock-strewn mounds.</p>
 
<p>[mailto:tychocrater@yahoo.com Chuck Wood]</p>
 
<p>[mailto:tychocrater@yahoo.com Chuck Wood]</p>
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[http://www.hq.nasa.gov/office/pao/History/alsj/a17/a17.sta4.html  Orange soil - Lunar Surface Journal]<br />
 
[http://www.hq.nasa.gov/office/pao/History/alsj/a17/a17.sta4.html  Orange soil - Lunar Surface Journal]<br />
 
[http://wapi.isu.edu/Geo_Pgt/Mod06_Moon_a_b/A17_01x.htm  Orange soil close-up]</p>
 
[http://wapi.isu.edu/Geo_Pgt/Mod06_Moon_a_b/A17_01x.htm  Orange soil close-up]</p>
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<p><b>Yesterday's LPOD:</b> [[January 29, 2006|A Tale of Two Craters]] </p>
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<p><b>Tomorrow's LPOD:</b> [[January 31, 2006|Incoming!]] </p>
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===COMMENTS?===
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Latest revision as of 19:24, 7 February 2015

Orange Ash

shorty panLPOD1.jpg
images by Apollo 17 astronauts, mosaicked byTony Gondola

Shorty Crater is the most colorful crater on the Moon. Whereas lunar surface materials can mostly be described in shades of gray, bright orange soil was visible to Apollo 17 astronauts in the rim of the 110 m wide Shorty Crater. When he discovered it astronaut Harrison Schmitt thought that the orange material was volcanic ash, but he was troubled by the rim’s rocky breccia which is a characteristic of impact craters. Schmitt was doubly right, although the full story didn’t become clear for a few years. The orange soil includes tiny (0.04 mm) glass spheres that vigorously erupted 3.64 billion years ago. The ash formed a layer that was disturbed 30 million years ago when Shorty Crater formed. You have heard of dark-halo craters - Shorty is almost an orange halo crater. Rock debris – and orange soil – have slid downslope, filling the floor with rock-strewn mounds.

Chuck Wood

Technical Details:
12 December 1972, Hasselblad camera. Mosaic assembled by Tony Gondola using frames AS17-137-20991 to AS17-137-20998.

Related Links:
Rükl chart 25
Orange soil - Lunar Surface Journal
Orange soil close-up

Yesterday's LPOD: A Tale of Two Craters

Tomorrow's LPOD: Incoming!

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