A High-Pressure Mineral in a Meteorite and Collision Process Revealed by TEM

Abstract

Some meteorites have experienced heavy impacts on their parent bodies. High-pressure minerals are found in such heavily shocked meteorites. FIB-assisted TEM observations have contributed to disclose efficiently the occurrences and formation mechanisms of high-pressure minerals. In this article, the recent advances of research about high-pressure minerals in shocked meteorites are summarized. In the latter chapter, the implications of high-pressure minerals found in shocked meteorites into collision phenomena are also mentioned.