Authors: Harry K. Hahn
The gravity anomaly map of Africa shows a complex impact crater with the enormous dimensions of 1200 x 850 km. This impact crater, which is responsible for the Congo Basin, probably was formed by ≥ 40 fragments of a large asteroid or comet that broke to pieces just before impact. The gravity anomaly signature shows where many of the fragments impacted. The impactor-fragments probably had ≥ Ø 3 - 10 km each, and the original asteroid or comet probably had a diameter of ≈ 30 – 50 km, and it impacted in a shallow angle. This is indicated by the “drop-shape” of the whole impact area. The trajectory of the asteroid or comet had a north-west direction. The trajectory indicates that this impact probably wasn’t related to the PT-Impact. The acceleration of the North- & South-American-Plates towards North-West, which must have happened > 150 Ma ago, probably was initiated exactly at the Triassic/Jurassic boundary 200 Ma ago. In all probability the T/J-boundary was caused by the Congo Impact ! The Congo Impact transferred a very powerful impulse into the African Plate, which then passed this impulse to the North- & South-American-Plates. With a long delay of maybe 10 to 20 million years the North- & South-American-Plate probably began to slowly break-off and move away from the African Plate. The Congo Impact Impulse (CII) in this way may be responsible for the final break-up of Gondwana. The gravity anomaly map of Africa also shows the three powerful linear Ejecta Rays R2 - R4 ( secondary crater-chains ) which were caused by the Permian-Triassic Impact in Siberia. These Ejecta Rays R1 – R4 meet at the original PT- Impact Point. ( please see my studies Part 1 to 6 about the PT-Impact Event – see weblinks in References )
Comments: 4 pages, 10 figures
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[v1] 2021-01-20 11:33:29
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