地质通报2017，Vol.36Issue(2)：485-491,7.
北京西郊下苇甸剖面寒武系叠层石中的底栖鲕粒:基本特征和重要意义
The benthic oolite within the stromatolitic bioherm of the Cambrian strata at the Xiaweidian section in the western suburb of Beijing:Essential features and important significance
摘要
Abstract
Ooids are one of the common particles in coating grains in carbonate rock. The origin of ooids has been one of the most important scientific problems to which the geologists have paid close attention. It is very important to know and explain the sedimen-tary environment. There are multi-period stromatolitic biostromes or stromatolitic bioherms in the Cambrian strata at the Xiaweidian section in the western suburb of Beijing. The authors found that benthic ooids are largely developed in the top part of the Gushan Formation and the lower part of the Fengshan Formation. An analysis of their formation characteristics and microscopic fabric patterns shows that the origin of benthic ooids was closely related to microbial action, thus supporting the hypothesis of microbes to some ex-tent. What is more, the discovery increases the diversity of the carbonate particles. On the basis of previous researches, the authors have traced the scientific meaning of this problem so as to provide some useful clues for thorough understanding of the form of micro-bial carbonate and microbial-mat.关键词
底栖鲕粒/叠层石/崮山组/凤山组/寒武系Key words
benthic ooids/stromatolite/Gushan Formation/Fengshan Formation/Cambrian strata分类
天文与地球科学引用本文复制引用
倪胜利..北京西郊下苇甸剖面寒武系叠层石中的底栖鲕粒:基本特征和重要意义[J].地质通报,2017,36(2):485-491,7.基金项目
国家自然科学基金项目《华北克拉通北缘寒武纪生物丘沉积组构多样性研究》(批准号:41472090、40472065) （批准号:41472090、40472065）
