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=Hundreds of Domes= | =Hundreds of Domes= | ||
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− | + | <td width="50%"><h2><nobr>Hundreds of Domes</nobr></h2></td> | |
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− | + | <tr><td><div align="center" class="main_sm">Image Credit: [http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1973Moon....6....3S Map by Gene Smith, The Moon]</p> | |
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− | + | <p align="center"><b>Hundreds of Domes</b></p> | |
− | + | <p align="left">In terrestrial volcanology the word <i>dome</i> most commonly refers to a silica-rich, steep-sided volcanic hill. But typical lunar domes, such as Kies Pi, are most like terrestrial <i>small shield</i> volcanoes which are made of silica-poor basalts and have very gentle slopes. In 1973, Gene Smith, a young volcanologist at the University of New Mexico, published an article summarizing his search for domes on the Lunar Orbiter images. He cataloged more than 300 suspected domes on the lunar near and far sides. Most of his domes are not small shields like Kies Pi (because they are not easily detected on the high sun Lunar Orbiter images). Examples of the types of features Smith considered to be domes include localized swellings on mare ridges, hills on the floors of Copernicus and other craters, the Gruithuisen domes, and bulbous (boytroidal is the delightful geology word) hills inside the farside crater Aitken. In 1973 it was still thought by some lunar scientists that volcanism of a lava chemically very different from mare basalts might be widespread. Today, we believe that such evolved lavas exist (e.g. Gruithuisen domes) but are relatively rare. The bumps on the floors of Copernicus and other young craters are now interpreted as debris from the impact that formed the craters. But we still dont know what the mare ridge hills and boytroidal hills are. Gene Smiths 30 year old map and catalog need to be re-analysed to evaluate which of his domes are still unexplained.</p> | |
− | + | <blockquote><p align="right">— [mailto:tychocrater@yahoo.com Chuck Wood]</blockquote> | |
<p align="left"><p><b>Technical Details:</b><br> | <p align="left"><p><b>Technical Details:</b><br> | ||
The position of domes in Smith's catalog is given in relation to Lunar Orbiter framelets and distance from the margin in cm, so identifying these objects on online images will be difficult.</p> | The position of domes in Smith's catalog is given in relation to Lunar Orbiter framelets and distance from the margin in cm, so identifying these objects on online images will be difficult.</p> | ||
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[http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1973Moon....6....3S E.I.Smith (1973) Identification, Distribution and Significance of Lunar Volcanic Domes. The Moon vol. 6 pages 3-31.] | [http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1973Moon....6....3S E.I.Smith (1973) Identification, Distribution and Significance of Lunar Volcanic Domes. The Moon vol. 6 pages 3-31.] | ||
<p align="left"><b>Tomorrow's LPOD: </b> New Color in Old Pictures</p> | <p align="left"><b>Tomorrow's LPOD: </b> New Color in Old Pictures</p> | ||
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− | + | <p align="center" class="main_titles"><b>Author & Editor:</b><br> | |
− | + | [mailto:tychocrater@yahoo.com Charles A. Wood]</p> | |
− | + | <p align="center" class="main_titles"><b>Technical Consultant:</b><br> | |
− | + | [mailto:anthony@perseus.gr Anthony Ayiomamitis]</p> | |
− | + | <p align="center" class="main_titles"><b>Contact Translator:</b><br> | |
− | + | [mailto:pablolonnie@yahoo.com.mx" class="one Pablo Lonnie Pacheco Railey] (Es)<br> | |
− | + | [mailto:chlegrand@free.fr" class="one Christian Legrand] (Fr)</p> | |
− | + | <p align="center" class="main_titles"><b>[mailto:webuser@observingthesky.org Contact Webmaster]</b></p> | |
− | + | <p align="center" class="main_titles"><b>A service of:</b><br> | |
− | + | [http://www.observingthesky.org/" class="one ObservingTheSky.Org]</p> | |
− | + | <p align="center" class="main_titles"><b>Visit these other PODs:</b> <br> | |
− | + | [http://antwrp.gsfc.nasa.gov/apod/astropix.html" class="one Astronomy] | [http://www.msss.com/" class="one Mars] | [http://epod.usra.edu/" class="one Earth]</p> | |
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<p> </p> | <p> </p> | ||
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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 18:33, 4 January 2015
Hundreds of Domes
<nobr>Hundreds of Domes</nobr> |
<img src="archive/2005/05/images/LPOD-2005-05-30.jpeg" border="0"> |
Image Credit: Map by Gene Smith, The Moon
|
Hundreds of Domes In terrestrial volcanology the word dome most commonly refers to a silica-rich, steep-sided volcanic hill. But typical lunar domes, such as Kies Pi, are most like terrestrial small shield volcanoes which are made of silica-poor basalts and have very gentle slopes. In 1973, Gene Smith, a young volcanologist at the University of New Mexico, published an article summarizing his search for domes on the Lunar Orbiter images. He cataloged more than 300 suspected domes on the lunar near and far sides. Most of his domes are not small shields like Kies Pi (because they are not easily detected on the high sun Lunar Orbiter images). Examples of the types of features Smith considered to be domes include localized swellings on mare ridges, hills on the floors of Copernicus and other craters, the Gruithuisen domes, and bulbous (boytroidal is the delightful geology word) hills inside the farside crater Aitken. In 1973 it was still thought by some lunar scientists that volcanism of a lava chemically very different from mare basalts might be widespread. Today, we believe that such evolved lavas exist (e.g. Gruithuisen domes) but are relatively rare. The bumps on the floors of Copernicus and other young craters are now interpreted as debris from the impact that formed the craters. But we still dont know what the mare ridge hills and boytroidal hills are. Gene Smiths 30 year old map and catalog need to be re-analysed to evaluate which of his domes are still unexplained. Technical Details: Related Links: Tomorrow's LPOD: New Color in Old Pictures |
Author & Editor: Technical Consultant: Contact Translator: A service of: Visit these other PODs: |
COMMENTS?
Click on this icon File:PostIcon.jpg at the upper right to post a comment.