黄土地层中真菌孢子的发现及古环境意义  

IDENTIFICATION OF FUNGUS SPORES IN LOESS DEPOSITS AND ITS PALEOENVIRONMENTAL SIGNIFICANCE

作　　者：吴乃琴[1] 吕厚远[2] 徐和聆[3] 吴锡浩[3] 蒋复初[3] 肖国华 安芷生[4] 

机构地区：[1]中国科学院地质研究所 [2]国家海洋局第一海洋研究所 [3]中国地质科学院地质力学研究所 [4]中国科学院西安黄土与第四纪地质开放研究实验室

出　　处：《地质论评》1993年第6期565-567,T001,共4页Geological Review

基　　金：国家青年自然科学基金(49102030);国家自然科学基金(49291100)

摘　　要：通过对我国各地130余块表层土壤样品的分析,发现了多种类型的真菌孢子,其中有一类大孢子(大小100—350μm,外壁厚5—10μm以上)与在黄土地层及红粘土层中发现的带尾的微球粒形态是一致的,进一步研究认为这种微球粒实际上是一类分布在我国北方干旱、半干旱草原区的真菌大孢子。这一发现对于恢复黄土地层及红粘土层沉积环境的演化有一定意义。By an analysis of 130 samples from the modern surface soils in China. various kinds of fungus spores have been found. Among them, one kind of mega-spore with a tail (which has a size between 100-350 μm in diameter and anouter wall thickness between 5--10 μm) is similar in shape to micrinites foundedin loess and red clay deposits. Detailed study indicates that this kind of micrini-tes, in fact, is typical fungus megaspores that are distributed widely in modernarid and semiarid steppe areas of northern China. This discovery has very impo-rtant significance for the reconstruction of the paleoenvironmental evolution ofthe loess and red clay deposits.

关 键 词：真菌孢子 古环境 黄土地层 

分 类 号：Q913.84[天文地球—古生物学与地层学]