Asteroid meetorite impact at end of paleozoic period

Abstract

New model at end of Permian Paleozoic period is proposed by evidence of cold plume mantle system at Asian Equator area, and impact rim remnants of Chinese Meishan PTB and Japanese Akiyoshi limestone area, Yamaguchi, where we found anomalous calcites, compared with other KTB and PTB limestone, and shocked materials of Fe-Ni grains and high-pressure silica minerals in brecciate rocks.