CAJ | 학술논문

豫西鲁山地区汝阳群发育了大量形态特征多样的微生物成因构造（microbially induced sedimentary struc-tures）,简称MISS,是微生物席或微生物膜与其他物理作用营力（如剥蚀作用、沉积作用、搬运作用和变形作用）相互作用的产物,也可被视为一种广义的遗迹化石,其最主要的两种类型是多边形网格状脱水裂痕和纺锤形脱水裂痕。笔者通过对地层中发育的微生物成因构造宏观特征的描述和统计分析,探讨了MISS与沉积环境之间的关系,认为微生物成因构造的总体特征演化规律与汝阳群趋于稳定的沉积环境演化规律一致,其形态特征与微生物席厚、暴露时间频繁与否有着密切的关系。
예서로산지구여양군발육료대량형태특정다양적미생물성인구조（microbially induced sedimentary struc-tures）,간칭MISS,시미생물석혹미생물막여기타물리작용영력（여박식작용、침적작용、반운작용화변형작용）상호작용적산물,야가피시위일충엄의적유적화석,기최주요적량충류형시다변형망격상탈수렬흔화방추형탈수렬흔。필자통과대지층중발육적미생물성인구조굉관특정적묘술화통계분석,탐토료MISS여침적배경지간적관계,인위미생물성인구조적총체특정연화규률여여양군추우은정적침적배경연화규률일치,기형태특정여미생물석후、폭로시간빈번여부유착밀절적관계。
Abundant Microbially Induced Sedimentary Structures（MISS） were preserved in the Ruyang Group of Lushan,Western Henan Province.They formed by the combining action of the microbial mat（or microbial film） with some kinds of physical actions such as denudation,sedimentation,transportation and deformation.To some extent,they can be regarded as trace fossils.Mesh-like and fusiform syneresis cracks are dominant.Based on the description and the macro-analysis on the MISS features,the authors discuss the relation between MISS and sedimentary environment,it is considered that the evolution of the MISS is consistent with the sedimentary environments.The morphological features of the MISS have a close relation to the thickness of microbial mat and their frequent exposure.