陕西洛川黄土剖面中的氨基酸研究

黄土在我国西北分布广,厚度大,堆积基本连续和完整,因而中国黄土一直为中外地质学家所重视。多年来不少学者对中国黄土的地层、年代、物质成分和结构等方面已进行了广泛的研究并取得了有意义的结果。但是,这些研究均未涉及黄土中氨基酸的问题。氨基酸是蛋白质分解后的产物,沉积物中氨基酸的含量、种类、外消旋等与所含有机质的丰度、类型及母质层的形成环境和成岩作用有关,为此,本文首次尝试对黄土中的氨基酸进行分析研究,试图通过对黄土中氨基酸的分布规律和变化,探索氨基酸在黄土沉积环境、古气候及古生物作用等方面的可能的地球化学含义。

STUDY ON AMINO ACIDS FROM LOESS IN LUOCHUAN SECTION OF SHAANXI

Amino acids from Loess in the Luochuan seetion have been examined in this laboratory for the first time. The main purpose of this study is to find out geochemical significance of amino acids in the Quaternary sediments. Through the analyses of amino acids from 32 samples, result has shown that over 20 kinds of amino acids such as aspartic,threonine,etc. are present in the samples from Malan loess throughout Wucheng loess.