Geophysics

   

The Permian-Triassic Impact Event Caused Secondary-Craters and Impact-Structures in Europe, Africa and Australia

Authors: Harry K. Hahn

First I give an overview of the Permian Triassic (PT) Impact Event before I describe the Secondary-Craters and -Impact Structures of the PT-Impact, starting at page 12. The large secondary-impact-craters and –structures found in Australia, Europe and Africa were caused by ejecta material that was produced during the PT-Impact, which formed the 1270x950 km elliptical PT-Impact Crater. The impactor which caused the PT-Impact, an asteroid or comet in the diameter-range of probably 60 to 200km, collided with our planet at a very shallow angle. Because of this shallow impact angle of ≤8° and the estimated low impact-velocity of around 8 km/s, large amounts of material was excavated from Earth’s crust during the impact. This excavated crust material, together with fragments of the impactor, is the ejecta material that caused many large secondary craters & impact-structures on Earth. It probably had a velocity of slightly less than 8 km/s. Some large fragments of the impactor or of the ejected material caused a secondary crater chain along the NE-coast of Australia. An exceptional large impact crater of this crater-chain, the >300km Cape York Crater caused a number of large-scale magma eruptions over a long time period, which were partly responsible for the creation of the Pacific-Plate as described in more detail in Part 1 of my hypothesis. In Europe and Africa powerful Ejecta-Rays from the PT-Impact Event caused further secondary impact-crater-chains with crater diameters of up to 200km. The tracks of these crater chains are clearly visible on gravity anomaly maps, which show the reduced thickness of Earth’s crust in these areas (blue areas). It is clearly visible that these tracks of the Ejecta Rays intersect at a certain point which was the impact location of the PT-Impact at the time of impact, in the North of Siberia. The outline of Italy is a direct result of these crater chains as my drawings indicate. Another large ejecta-fragment caused a secondary crater (VLC) at the location where the Victoria Lake is located today. A part of the impacting material was ejected again and caused the VLC-ejecta-rays, another part descended in Earth’s crust and caused the African-LLSVP & Pacific-LLSVP (see Part 1 & Part 6b). The indicated Congo Crater isn’t a result of the PT-Impact. It probably caused the Triassic/Jurassic boundary.

Comments: 47 Pages. 226 figures, 6 tables, updated page 3 and 37

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Submission history

[v1] 2021-01-07 23:29:39
[v2] 2021-01-28 20:19:01
[v3] 2021-11-10 06:47:33

Unique-IP document downloads: 732 times

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