在模拟实验中,从哥纪念碑中分离出来的真菌对砂岩恶化和损坏的微观证据
Tomohiro Inaba1, Tomoyuki Hori1, Megumi Tsuchiya2
1Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan.
The Science of the total environment
|July 3, 2023
概括
菌会对像哥尔瓦特这样的砂岩遗产遗址造成重大破坏. 这项研究揭示了真菌菌如何透和破坏砂岩的稳定性,导致其恶化和腔形成.
科学领域:
- * 地质微生物学
- * 材料科学 材料科学
- * 保护文化遗产 保护文化遗产
背景情况:
- * 砂石结构,包括联合国教科文组织世界遗产安哥尔,面临严重的恶化.
- * 微生物,特别是真菌,是砂岩生物退化的主要代理物.
- *了解真菌生物退化机制对于有效的遗产保护至关重要.
研究的目的:
- * 调查菌殖民和砂岩的生物退化.
- * 用先进的显微镜识别真菌破坏砂岩的机制.
- * 提出一种由真菌活动导致的砂岩生物降解模型.
主要方法:
- *共聚焦反射显微镜 (CRM) 用于可视化真菌-砂岩相互作用.
- *扫描电子显微镜-能量散射X射线光谱 (SEM-EDS) 用于元素分析.
- * 用孤立的真菌菌株 (Aspergillus sp. AW1,Paecilomyces sp. 这种虫子的种类. 通过BY8).
主要成果:
- *观察到真菌菌根 (AW1菌株) 附着在砂岩上并透.
- *砂岩表面的粗度增加,由于真菌生长,洞穴变得更深.
- * SEM-EDS显示Si丰富的矿物质 (石英,地) 从砂岩表面脱离.
结论:
- *真菌生长对砂岩表面粗化和洞穴形成有显著的贡献.
- *真菌菌根会损害砂岩基质,破坏矿物成分的稳定.
- * 提出了一个生物降解模型,其中真菌降解了砂岩,导致结构崩.
关键词:
安哥尔瓦特 (Angkor Wat) 是一个古老的城市.亚斯伯菌 sp. 的情况. 这是AW1菌株的AW1.安哥尔·姆的拜 (Bayon) 是一个安哥尔·姆的拜.这种种类型是Paecilomyces sp. 这是BY8菌株.砂岩的生物恶化更多相关视频
07:00Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy
Published on: October 4, 2024
639
06:55Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
Published on: August 5, 2016
8.2K
相关概念视频
01:20Microcracking in Concrete
152
Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...
152
01:25Deleterious Substances in Aggregate
212
Deleterious substances in aggregates can be detrimental to the quality and durability of concrete. These substances include organic impurities like loam, which interfere with cement hydration and are usually present in the sand. These prevent a good bond between aggregate and cement paste. Organic impurities can be detected using the colorimetric test, where the darkness of a solution after agitation indicates the level of organic content.
Another type of impurity is clay and fine material that...
Another type of impurity is clay and fine material that...
212