我院教师王仁民、陈能松和研究生李平凡于1982年7月在河北省遵化县东陵附近发现了深变质而保留良好的变余鬣刺结构的太古代科马提岩(照片)。这是一种产于太古代或元古代绿岩带的高度富镁而贫钛贫钾的超镁铁质为主的喷发熔岩。除了化学特征外,它以具有独特的由细长柱状橄榄石或辉石构成的鬣刺结构作为重要的成因特征和可靠的鉴别标志。这种岩石自从1969年首先在南非被发现和命名之后,立即引起了世界各国地质学家的注意并迅速在若干国家相继发现。但保留鬣刺结构者仅见于太古代的低级变质区或者在高级区而不超过角闪岩相的变质作用,我国遵化绿岩带曾遭受麻粒岩相变质作用而仍能保留鬣刺结构实属难 Our teachers Wang Renmin, Chen Nansong, and graduate student Li Pingfan discovered the deep-metamorphic and well-preserved meta-kryptonite kamala rock (photo) in July 1982 in the vicinity of Dongling, Zunhua County, Hebei Province. This is a highly magmatic, poorly-depleted, ultra-mafic eruptive lava produced in the Archean or Proterozoic greenstone belt. In addition to the chemical features, it has a distinctive, hypoid columnar olivine or pyroxene composition of the hyacinth structure as an important genetic feature and a reliable identification mark. The rock, which was first discovered and named in South Africa in 1969, immediately attracted the attention of geologists from all over the world and quickly discovered it in several countries. However, the structures that retain the igneous structures are only found in the low-grade Archean metamorphic areas or in the high-grade areas without exceeding the metamorphism of amphibolite facies. The Zunhua greenstone belts have been subjected to granulite facies metamorphism and still retain the structure It is difficult