论文部分内容阅读
综述了非球陨石（铁陨石，石铁陨石和无球粒陨石）在成分结构方面的非分异成因证据，推断其成因是：星云盘中心层中的星云发生气－液凝聚作用形成的熔滴，在较高温度下彼此合并形成了较大熔体，熔体固化后形成该类陨石母体。根据Ｃ１陨石不含球粒和其它成分特征，推断它们是星云只发生气－固凝聚作用的产物。对近年来新发现的一些特殊成分的碳质球粒陨石进行了综合分析，暂定名为类Ｃ１陨石。通过类Ｃ１陨石与其它球粒陨石及Ｃ１陨石成分结构特征的对比，推断它们是星云盘边缘层星云发生气－液－固和气－固联合凝聚作用，同时发生水化作用的产物。最后，在对所有陨石凝聚成因进行解释的基础上，建立了小行星区星云凝聚模型。
The non-differentiated genetic evidence of compositional structure of non-meteorites (iron meteorites, stone meteorites and non-chondrite meteorites) is reviewed. The reason for this is that the nebula in the central layer of the nebula disk is formed by gas-liquid coalescence Drops, at higher temperatures, merge with each other to form a larger melt, which melts to form a meteorite matrix. Based on the fact that C1 meteorites do not contain spherulites and other components, it is inferred that they are the product of the gas-solid cohesion only in the nebula. In recent years, some newly discovered carbonaceous chondrite meteorites were analyzed comprehensively, tentatively named Class C1 meteorites. By comparing the structural features of C1-like meteorites with those of other chondrites and C1 meteorites, we conclude that they are the products of gas-liquid-solid-gas-solid combination coalescence and hydration at the same time. Finally, based on the explanation of the causes of all the meteorites, a model of the nebula condensation in the asteroid area has been established.