Luis Walter (1911—88), American physicist. In 1980 Alvarez and his son identified iridium in sediment from the Cretaceous-Tertiary boundary and proposed that this resulted from a catastrophic meteorite impact.
阿耳瓦雷茨,路易斯·沃尔特(1911—1988,美国物理学家,1980年与其子从白垩纪第三纪沉积物里发现了铱,于是提出铱产生于灾难性陨星撞击的观点)。