Скачать или смотреть The Story of Oregon's Mysterious 25 Mile Wide Circle

Within central Oregon south of the city of Bend is a massive 25 mile wide vast circular structure which easily stands out from the surrounding landscape. So, what exactly is this structure? Is it an impact crater, a buried caldera, or is it something else? Today's video will answer this question and discuss the formation of this large geologic structure.

Thumbnail Photo Credit: Google Earth, Image Landsat / Copernicus. This image was overlaid with text, and then overlaid with GeologyHub made graphics (the image border & the GeologyHub logo).

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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.

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Sources/Citations:
[1] U.S. Geological Survey
[2] Wynn, Jeff, 2014, Gravity, magnetic, and radiometric data for Newberry Volcano, Oregon, and vicinity: U.S. Geological Survey Data Series 830, https://dx.doi.org/10.3133/ds830.
[3] Kiik, K.; Plado, J.; Lingadevaru, M.; Jeelani, S.H.; Szyszka, M. Magnetic Anomaly and Model of the Lonar Meteorite Impact Crater in Maharashtra, India. Geosciences 2020, 10, 417. https://doi.org/10.3390/geosciences10..., CC BY 4.0.
[4] Klokocnik, Jaroslav & Kostelecký, J. & Bezdek, Ales. (2018). On the detection of the Wilkes Land impact crater. Earth, Planets and Space. 70. 10.1186/s40623-018-0904-7. CC BY 4.0.
[5] U.S. Geological Survey, Oregon Geologic Map, https://mrdata.usgs.gov/geology/state/

0:00 Mysterious Circle
1:12 Impact Crater?
1:48 Caldera?
2:40 Dome Anticline?
3:00 Rock Units
3:21 Formation Explanation