Types and microbial genesis of carbonate microbodies in Zoophycos from the Pennsylvanian to Cisuralian Taiyuan Formation in North China
Types and microbial genesis of carbonate microbodies in Zoophycos from the Pennsylvanian to Cisuralian Taiyuan Formation in North China
复制标题
华北宾夕法尼亚至苏苏拉系太原组兽藻碳酸盐微体类型及微生物成因
DOI：
10.1186/s42501-018-0004-4
复制
发表时间：
2018-07
期刊：
影响因子：
--
通讯作者：
毕瑜珺
中科院分区：
文献类型：
--
作者：
宋慧波;张翔宇;刘顺喜;胡斌;郭睿瑞;毕瑜珺
在华北地区的宾夕法尼亚期-中苏拉期太原组碳酸盐岩中，普遍发育有多种遗迹化石动物藻类。在这项研究中，碳酸盐微体类型，确定在四个不同颜色的填充Zoophycos使用扫描电子显微镜（SEM）和能量色散光谱（EDS）。根据碳酸盐微体的形态特征，可将其分为三组：球状体、框状体和杆状体。根据表面结构特征和个体或聚集体形态，这三组可进一步分为13种类型：（1）光滑球状体;（2）有微小刺的球状体;（3）表面颗粒状球状体;（4）表面絮状球状体;（5）表面蠕虫状球状体;（6）框架状单体;（7）框架状菌落;（8）线状光滑的杆状体;（9）末端扩张的光滑杆状体;（10）双棘杆状体;（11）螺旋杆状体;（12）多刺杆状体;（13）分枝杆状体。本文不仅描述了各种碳酸盐微体的形态、组成和产状，而且讨论了它们可能的微生物成因：（1）碳酸盐球形微体很可能是球形细菌细胞被矿物完全置换后产生的;（2）与生物源草莓形态相对应的框形单体和菌落黄铁矿（或乌藨子状黄铁矿）的外观和内部结构可能继承了微生物细胞的形态，是微生物活动引起的微环境变化间接产生的;（3）丝状和杆状微体的形态特征、大小、产状和保存状况表明它们可能是生物构造，并可能是矿化的微生物化石;（4）微生物作用与Zoophycos示踪剂之间存在某种共生关系。此外，不同颜色的Zoophycos填充物最有可能密切相关的微生物类群的组成的差异，这反过来又反映了不同的微环境条件。
Many kinds of ichnofossil Zoophycos occur commonly in the carbonate rocks of Pennsylvanian to Cisuralian Taiyuan Formation in North China. In this study, carbonate microbodies types were identified in four differently-colored fillings of Zoophycos using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Based on the morphologic characteristics, these carbonate microbodies can be divided into three groups, i.e., spheroids, framboids and rhabditiforms. According to the structural features of surface and individual or aggregate morphologies, the three groups can be further subdivided into thirteen types: (1) smooth spheroids; (2) spheroids with tiny thorns; (3) spheroids with a finely granulated surface; (4) spheroids with a flocculent surface; (5) spheroids with a vermiform surface; (6) framboid monomers; (7) framboid colonies; (8) linear smooth rhabditiform bodies; (9) smooth rhabditiform bodies with expanding ends; (10) biserial rhabditiform bodies; (11) spiral rhabditiform bodies; (12) thorny rhabditiform bodies; and (13) branched rhabditiform bodies. This paper not only describes the morphology, composition and occurrence of the various carbonate microbodies, but also discusses their possible microbial genesis, as follows: (1) carbonate spherical microbodies most likely were generated after globular bacterial cells had been fully displaced by minerals; (2) framboid monomers and colonies corresponding to the morphology of biogenic strawberry (or raspberry) pyrite, with their appearance and internal structure possibly inheriting the morphology of microbial cells, were indirectly generated by some microenvironmental changes due to microbial activity; (3) the morphological features, size, occurrences and preservation of filamentous and rhabditiform microbodies indicate that they may be biogenic structures, and possibly mineralized microbial fossils; and (4) some kind of symbiotic relationship exists between microbial action and the Zoophycos trace-makers. Besides, the differently-colored fillings of Zoophycos are most likely closely related to differences in the composition of microbial taxa, which in turn reflect different microenvironmental conditions.
登录
查看更多内容
DOI：
--
发表时间：
2007
期刊：
--
影响因子：
--
作者：
Chen Xiao-zheng
通讯作者：
Chen Xiao-zheng
影响因子：
2.2
作者：
B. Webby
通讯作者：
B. Webby
DOI：
10.1016/j.palaeo.2016.01.012
发表时间：
2016-03
期刊：
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子：
--
作者：
Li‐Jun Zhang;D. Knaust;Zhaoxia Zhao
通讯作者：
Li‐Jun Zhang;D. Knaust;Zhaoxia Zhao
影响因子：
3.8
作者：
F. Westall;R. Folk
通讯作者：
F. Westall;R. Folk
DOI：
10.1007/s11430-007-0080-2
发表时间：
2007
期刊：
Science in China Series D: Earth Sciences
影响因子：
--
作者：
Y. Gong;Ran Xu;S. Xie;Xianyu Huang;Bin Hu;Yong’an Qi;Guocheng Zhang
通讯作者：
Y. Gong;Ran Xu;S. Xie;Xianyu Huang;Bin Hu;Yong’an Qi;Guocheng Zhang