The Largest Impact Crater on the Planet; Hidden in Antarctica & 300 Miles Wide

Hidden under ice in Antarctica is a massive 300 mile or 480 kilometer wide impact crater. Although its existence is still not definitively proven, more evidence has recently suggested that Earth's largest remaining impact crater does truly exist here. What makes this all the more interesting is this feature known as the Wilkes Land Crater is located on the exact opposite side of the planet called an antipode to where the Siberian Traps erupted 252 million years ago. Since the Siberian Traps caused the Permian Triassic Extinction event, the question must be asked if this impact crater with an unknown age generated the Siberian Traps, thus meaning this mass extinction was caused by an impact event?

Thumbnail Photo Credit: Data SIO, NOAA, U.S. Navy, NGA, GEBCO, Image U.S. Geological Survey. This image was then overlaid with text in addition to GeologyHub made graphics.

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Sources/Citations:
[1] Klokočník, J., Kostelecký, J. & Bezděk, A. On the detection of the Wilkes Land impact crater. Earth Planets Space 70, 135 (2018). https://doi.org/10.1186/s40623-018-09..., CC BY 4.0
[2] Li, S., Li, Y., Zhang, Y. et al. Remnant of the late Permian superplume that generated the Siberian Traps inferred from geomagnetic data. Nat Commun 14, 1311 (2023). https://doi.org/10.1038/s41467-023-37..., CC BY 4.0
[3] G. Collins & others, "A numerical assessment of simple airblast models of impact...", Meteoritics & Planetary Science, https://doi.org/10.1111/maps.12873 (2017), CC BY 4.0
[4] https://impact.ese.ic.ac.uk/ImpactEar...
Estimates on asteroid diameter, velocity, initial crater depth, final crater depth, wind speed and effects around the planet, whether an impact related earthquake could be felt, and tnt energy equivalent in this video were sourced using the calculator at https://impact.ese.ic.ac.uk/ImpactEar..., which was used with permission.
[5] NASA, NASA Image and Video Library, Secondary Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington, https://images.nasa.gov/details/PIA11245
[6] Rampino MR, Rodriguez S, Baransky E, Cai Y. Global nickel anomaly links Siberian Traps eruptions and the latest Permian mass extinction. Sci Rep. 2017 Sep 29;7(1):12416. doi: 10.1038/s41598-017-12759-9. PMID: 28963524; PMCID: PMC5622041.
[7] https://images-of-elements.com/iridiu...

0:00 Mass Extinction Events
0:52 Permian Triassic Extinction
2:30 Iridium Spikes
3:38 Antipode
4:06 Impact Effects
4:36 Conclusion