Off the coast of eastern Australia is a towering monolith which reaches more than 550 meters or 1800 feet above the ocean surface. Being taller than it is wide, this feature is known as Ball's Pyramid. It represents an ancient volcanic neck from what used to be a fairly large and lush green shield volcano and island. This video will discuss how Ball's Pyramid formed, its relationship to Lord Howe Island, and how both islands are related to a mantle plume.
Thumbnail Photo Credit: This work "BallsPyramid7", is a derivative of a photo (resized, cropped, brightess increased, contrast increased, text overlay, overlaid with GeologyHub made graphics (and border)) from "Approaching Balls Pyramid from the north", by: John Game, 1965, Posted on Flickr, Flickr account link: www.flickr.com..., Photo link: www.flickr.com..., CC BY 2.0. "BallsPyramid7" is used & licensed under CC BY 2.0 by / geologyhub
If you would like to support this channel, consider using one of the following links:
(Patreon: / geologyhub )
(RU-vid membership: / @geologyhub )
(Gemstone & Mineral Etsy store: prospectingariz...)
(GeologyHub Merch Etsy store: geologyhub.etsy...)
Google Earth imagery used in this video: ©Google & Data Providers
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:
Public Domain: creativecommon...
CC BY 2.0: creativecommon...
CC BY 4.0: creativecommon...
Sources/Citations:
[1] (Hansma J and Tohver E (2020) Southward Drift of Eastern Australian Hotspots in the Paleomagnetic Reference Frame Is Consistent With Global True Polar Wander Estimates. Front. Earth Sci. 8:544496. doi:10.3389/feart.2020.544496), CC BY 4.0. This source was used to loosely map the hotspot chains (now all extinct in my opinion) which existed in relatively close proximity to Australia in the last 100 million years.
[2] NOAA
[3] U.S. Geological Survey
0:00 Ball's Pyramid
0:54 Lord Howe Hotspot
1:35 Lord Howe Island
2:59 Volcanic Neck & Erosion
3:54 Conclusion
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 geologyhubyt@gmail.com and I will make the necessary changes.
14 авг 2024