CAJ | 학술논문

与大多数地球岩石不同，许多陨石中都显示一些与特定的核合成过程密切相关的同位素特征。这些核合成过程很可能发生在太阳系外。这些同位素特征被称为同位素异常。同位素异常在过去几十年里一直是同位素宇宙化学的一个活跃的研究领域。但直到近十年行星尺度上的同位素异常才被发现并被证实。同位素异常，特别是行星尺度上异常的发现为太阳系早期演化模型提供了新的制约。金属元素的同位素异常成为示踪天体物质来源及其关系，以及反演太阳系形成时的星际环境的最直接的证据。本文综述了近年来在同位素异常领域里的重要研究进展及其对研究天体化学过程的重要意义。
여대다수지구암석불동，허다운석중도현시일사여특정적핵합성과정밀절상관적동위소특정。저사핵합성과정흔가능발생재태양계외。저사동위소특정피칭위동위소이상。동위소이상재과거궤십년리일직시동위소우주화학적일개활약적연구영역。단직도근십년행성척도상적동위소이상재피발현병피증실。동위소이상，특별시행성척도상이상적발현위태양계조기연화모형제공료신적제약。금속원소적동위소이상성위시종천체물질래원급기관계，이급반연태양계형성시적성제배경적최직접적증거。본문종술료근년래재동위소이상영역리적중요연구진전급기대연구천체화학과정적중요의의。
Different from the majority of the terrestrial rocks,many meteorites have shown isotope characteristics that are clearly associated with nucleosynthetic processes in stars other than the Sun.These were called isotope anomalies.Isotope anomalies have been an active research area of isotope cosmochemsitry in the past few decades.However,planetary-scale isotope anomalies have not been discovered and confirmed for metal isotopes until recently.The discovery of isotope anoma-lies,especially at the planetary scale,provides new constraints on the evolutional model for the young Solar System.They are the most direct evidence for tracing the origin of extraterrestrial samples,understanding their genetic relationships,and deciphering the stellar environment of Solar System formation.In this paper,we reviewed the progress that has been re-cently made in the field of isotope anomalies and reviewed their cosmochemical significances.