摘要
通过实验室模拟蓝藻的早期成岩过程,获得微生物转化无定形体样品,并对样品进行光学显微镜和扫描电子显微镜形态观察,以及生化成分和碳氢氮元素分析,为干酪根早期演化过程研究提供现代对比实例。研究结果表明:蓝藻在模拟过程中不断被降解,到模拟实验的第95天,蓝藻产荧光物质基本被降解完全,样品呈无定形体状。微生物作用使多糖和蛋白质含量下降,粗脂肪含量上升到12.96%;经微生物转化作用后,蓝藻中的C,N元素含量明显减少,N元素含量比新鲜蓝藻中N元素含量降低了26.98%。可见早期成岩过程中微生物作用使蓝藻形态朝无定体转化,有利于脂类成分的增加,利于成烃。
Amorphous bodies by the transformation of microbian during the simulation of early diagenesis of cyanobac-teria are reported in this paper. The morphology of the samples was examined, with SEM and LM and the contents of biochemical components, carbon, hydrogen and nitrogen were determined. The experimental results provide a case study for the early evolution of kerogen. Cyanobacteria was continuously degraded in the simulation experiment. The fluorescent material producted by cyanobacteria was fully degraded completely, the cells was completely broken as amorphous bodies by the 95th day. Under the action o{ microorganisms, the content of polysaccharide and protein de- creased, but the crude lipid went up to 12.96 %. Through the microbial conversion, the contents of carbon and nitro- gen decreased significantly and the nitrogen content reduced by 26.98 % as compared with fresh algae. The results show that the microorganism promotes the transformation of cyanobacteria to amorphous bodies, and it is beneficial to the increase of lipid and hydrocarbon generation.
出处
《微体古生物学报》
CSCD
北大核心
2014年第4期347-357,共11页
Acta Micropalaeontologica Sinica
基金
国家自然科学基金项目(41172121)
"十二五"国家水专项(2012ZX07103-004)资助
关键词
蓝藻
形态
生物化学成分
碳氢氮元素
模拟实验
早期成岩过程
巢湖
安徽
cyanobacteria, morphology, biochemical component, C, H, N contents, simulationexperiment, early diagenesis, Chaohu Lake, Anhui Province
