File:Asteroid Mining (7680749368).jpg
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Summary
[edit]DescriptionAsteroid Mining (7680749368).jpg |
At the base of Meteor Crater rest the rusting remains of an early foray in asteroid mining for the precious iron and nickel that the booming U.S. railway industry valued more than gold in these parts. Today, we might look for the Platinum Group Metals (PGMs like palladium, iridium, and platinum) that are used as catalysts and average $1,500 per ounce. Platinum and the PGMs are so expensive because they only come from asteroids. All of the Earth mines are centered on historic meteor impacts like this one, and given the fracture on impact, the precious metals exist in densities of 1 part per billion at a good site. Why is this? During the Earth’s formation, all of these heavy PGM elements settled by gravity within the molten core of our planet. The only remains near the surface are those that arrived much later, from asteroid impacts. |
Date | |
Source | Asteroid Mining |
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@N01/7680749368. It was reviewed on 13 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
13 December 2020
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current | 15:35, 13 December 2020 | ![]() | 5,616 × 3,457 (8.97 MB) | Eyes Roger (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Exposure time | 1/320 sec (0.003125) |
F-number | f/9 |
ISO speed rating | 100 |
Date and time of data generation | 10:43, 28 May 2012 |
Lens focal length | 16 mm |
JPEG file comment | AppleMark |
Orientation | Normal |
Horizontal resolution | 72 dpi |
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Software used | QuickTime 7.7.1 |
File change date and time | 17:40, 30 July 2012 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 10:43, 28 May 2012 |
Meaning of each component |
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APEX exposure bias | 0 |
Metering mode | Pattern |
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GPS tag version | 2.2.0.0 |