| Budget Amount *help |
¥22,750,000 (Direct Cost: ¥17,500,000、Indirect Cost: ¥5,250,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
|
|---|
| Outline of Final Research Achievements |
To elucidate the cause of drastic change of microbial carbonates in the Proterozoic-Phanerozoic boundary, observation of natural calcified cyanobacteria and calcification experiments were conducted. Observation of natural calcified cyanobacteria implied that the fabric of microbial carbonates was controlled mainly by the acidity of secreted extracellular polymeric substances. The results of calcification experiments also supported this conclusion, indicating that the cause of drastic change of microbial carbonates in the Proterozoic-Phanerozoic boundary was the change on cyanobacterial community composition.
|
