I recently examined more than 200 metamorphosed ordinary chondrites that were initially classified as unshocked or very weakly shocked because their silicate grains did not appear deformed.

• 我最近研究了超过200枚原来归类为未受冲击或仅受轻微冲击的普通球粒陨石，它们内部的矽酸盐矿物颗粒看来并没有变形。