The 1270 X 950 km Permian-Triassic Impact Crater Caused Earth‘s Plate Tectonics of the Last 250 ma

There is evidence for an enormous elliptical impact crater with the dimensions of 1270 x 950 km in the ocean floor of the Arctic Ocean. This elliptical impact crater and the dynamic effects of the ejected material have formed the deep sea basin area below -3000m in the Beaufort Sea. The assumed impact crater seems to be responsible for the Permian-Triassic boundary ~253 million years ago, which has caused the biggest mass extinction in Earth’s history. This Permian-Triassic (PT)-Impact Crater was formed by an oblique impact. This means that the impactor, an asteroid or comet in the diameter range of probably 60 to 200 km, collided with our planet at a very shallow angle, of probably less than 8° , with a relative low impact velocity of around 8 km/s. A computer simulation shows a close correlation between the topography of the assumed P/T-Impact Crater and the topography of a simulated elliptical impact crater that was created under similar conditions. The PT-Impact Event caused a gigantic butter-fly shaped ejecta blanket which covered the majority of the northern- and southern hemisphere Within the boundaries of this ejecta blanket many large secondary impact craters were formed by the ejecta, with crater diameters of up to 450 km. Please also read Part 2 of my hypothesis, where I describe many of the secondary impact-craters and -structures in more detail, which were caused by the PT-Impact Event. In Europe probably up to 20 large secondary craters were caused. In India a secondary impactor produced a 450 x 380 km elliptical crater which formed the Bay of Bengal. A similar crater was caused off the NW-coast of Australia. In South-America a large 840 x 630 km was found. And in Africa four extensive impact crater chains were caused. The impulse of the PT-impact and the impulses of the ejecta and secondary crater impacts, which were produced by the ejecta material, caused a global fracture pattern on Earth’s crust that was the trigger for the break-up of Pangea and a global expansion-tectonic process which is still going on today. The topographic map and the ocean floor age map of the Pacific Plate provide further evidence of the PT-Impact Event and the resulting expansion tectonic process caused by the Permian-Triassic Impact Event.