Скачать или смотреть The 2 Billion Year Old Natural Nuclear Reactor; A Geologic Oddity

Earth's oldest nuclear reactor dates back not to 1942 but to nearly 2 billion years ago. As, at a distinct location in what is now the nation of Gabon, an unusual abundance of uranium ore allowed for natural fission and then a nuclear chain reaction to take place. Today's video will discuss what I consider to be the world's strangest geologic oddity, which I analyze through my expertise as a geologist. This is the story of the Oklo Mine deposit.

Thumbnail Photo Credit: This work "UraniumDepositJSJ6", is a derivative of a photo (resized, cropped, image color saturation increased, text overlay, overlaid with GeologyHub made graphics (the image border & the GeologyHub logo)) from "Uranium roll front & molybdenum roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 16", by: James St. John, jsjgeology, 2007, Posted on Flickr, Flickr account link: https://www.flickr.com/photos/jsjgeol..., Photo link: https://www.flickr.com/photos/jsjgeol..., CC BY 2.0. "UraniumDepositJSJ6" is used & licensed under CC BY 2.0 by    / geologyhub  

Note: This video's thumbnail image shows a location in Colorado and not the Oklo Mine in Gabon.

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Google Earth imagery used in this video: ©Google & Data Providers

This video is protected under "fair use". If you see an image and/or video which is your own in this video, and/or think my discussion of a scientific paper (and/or discussion/mentioning of the data/information within a scientific paper) does not fall under the fair use doctrine, and wish for it to be censored or removed, contact me by email at [email protected] and I will make the necessary changes.

Various licenses used in sections of this video (not the entire video, this video as a whole does not completely fall under one of these licenses) and/or in this video's thumbnail image (and this list does not include every license used in this video and/or thumbnail image):
Public Domain: https://creativecommons.org/publicdom...
CC BY 2.0: https://creativecommons.org/licenses/...
CC BY SA 3.0: https://creativecommons.org/licenses/...

Sources/Citations:
[1] U.S. Geological Survey
[2] U.S. Department of Energy
[3] Mindat, https://www.mindat.org/
Note. All mineral data, including birefringence and crystal structures, and the number of isometric minerals were cited from Mindat.org
[4] Mindat, "Uraninite", https://www.mindat.org/min-4102.html
[5] Mindat, "Tyuyamunite", https://www.mindat.org/min-4072.html

0:00 2 Billion Year Old Nuclear Reactor
1:34 Isotope Concentrations
4:11 The Reaction Cycle
4:58 Amount of Energy Produced