一、引言 蛋白质以及作为蛋白质结构单元的氨基酸是所有生物的普通成份。恩格斯指出:“生命是蛋白体的存在方式”。氨基酸在生命系统中的重要性决定了它们在地球化学领域中的意义。它们在地质体中的产状、来源、以及在地质史中的演化,已成为有机地球化学、生物地球化学、地质古生物学,天体演化和生命起源等研究领域的重要课题。七十年代以来,由于对地质体中氨基酸的光 I. INTRODUCTION Proteins and amino acids, which are structural units of proteins, are common components of all living things. Engels pointed out: “Life is the existence of protein body.” The importance of amino acids in life systems determines their significance in the field of geochemistry. Their occurrence and origin in geological bodies and their evolution in geological history have become important topics in the fields of organic geochemistry, biogeochemistry, geological paleontology, celestial evolution and the origin of life. Since the seventies, due to the light of the amino acids in the geological body