small granule (of e.g. chrysolite) found in some meteoric rocks
双语例句
Thus, the chondrules should have made a much greater contribution to radioisotope heating than the refractory inclusions did. 因此球粒提供的放射性同位素加热，应该比耐火包体多。
ALAN E.RUBIN is a geochemist at the University of California, Los Angeles, whose research has focused on shock effects in meteorites and the nature and origin of their chondrules. 鲁宾是美国加州大学洛杉矶分校的地球化学家，他的研究著重于陨石中的冲击效应及球粒的性质及来源。
