File:NWA 5480 Olivine Diogenite Meteorite (50055556097).jpg
NWA_5480_Olivine_Diogenite_Meteorite_(50055556097).jpg (611 × 600 pixels, file size: 115 KB, MIME type: image/jpeg)
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Summary
[edit]DescriptionNWA 5480 Olivine Diogenite Meteorite (50055556097).jpg |
Scientists are excited about <a href="https://www.lpi.usra.edu/meteor/metbull.php?sea=nwa+5480&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=All&mblist=All&rect=&phot=&snew=0&pnt=Normal table&code=47718" rel="noreferrer nofollow">NWA5480</a> because they exhibit unique textural characteristics not previously found in any other known meteorites! The material must have been heated to a point where it became "plasticized" and mixed, presumably in the deep interior (mantle) of the NWA 5480 parent body (presumably asteroid 4Vesta). By analogy with deformed olivine-orthopyroxene-rich samples of the Earth's mantle (known as harzburgites), it appears likely that temperatures were high enough that NWA 5480 represents a solid residue after partial melting to produce molten magma, which presumably ascended towards the surface of the parent body. The "swirl" texture that can be seen on the interior and exterior graphically displays the flowing and mixing of the olivine and orthopyroxene grains, with intermingled chromite crystals. Diogenites: “Vast underground chambers of magma churned and roiled, eventually cooling to the point at which orthopyroxene crystals froze out of the liquid rock. Insulated by kilometers of overlying rock and magma, they cooled slowly, growing into enormous sizes before settling downwards into vast piles of large crystals at the base of the underground caverns.” (<a href="https://www.flickr.com/photos/jurvetson/51000316812/">Meteorite</a>, p.102) 24.2g End Cut, 50mm x 38mm x 8mm |
Date | |
Source | NWA 5480 Olivine Diogenite Meteorite |
Author | Steve Jurvetson from Los Altos, USA |
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This image was originally posted to Flickr by jurvetson at https://flickr.com/photos/44124348109@N01/50055556097. It was reviewed on 10 May 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
10 May 2021
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:12, 10 May 2021 | 611 × 600 (115 KB) | Sentinel user (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Date and time of data generation | 17:47, 6 September 2014 |
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Horizontal resolution | 96 dpi |
Vertical resolution | 96 dpi |
File change date and time | 17:47, 6 September 2014 |
Date and time of digitizing | 17:47, 6 September 2014 |
DateTimeOriginal subseconds | 000 |
DateTimeDigitized subseconds | 000 |
Color space | sRGB |