microfossil造句
1. And we know from micro-fossils that there were already several distinct forms of bacteria-like organisms as long ago as 3000 million years.
2. Microfossil charcoal is one of the important proxies for exploring fire history and ancient human activity.
3. Microfossil analysis reveals three transgression layers in the CQJ4 borehole, which are at 4.
4. The microfossil plants of the two formations have their own peculiarities, but have some common elements too. This shows that the deposition of the Sinian and Cambrian were c...
5. Kuanchuanpu biota is the Early Cambrian microfossil which is characterized as an early animal and plant fossil in the southern region of Shaanxi province.
6. The microfossil plants of the two formations have their own peculiarities, but have some common elements too. This shows that the deposition of the Sinian and Cambrian were continuous.
7. This achievement provides the microfossil materials for the study of the lower ordovician in Northern Guizhou.
8. Microfossil plants occur in gray banded siliceous rocks in the upper part of the middle member of the middle subgroup of the Yunkai Group.
9. On the basis of mega and microfossil records, the flora of Yunnan Province has been studied in order to reveal the Tertiary floral evolution and climatic change.
10. In this paper, we discuss the oxygen content of the Late Cretaceous sea water by means of microfossil proxies .
11. The sea level changes of Holocene in Shanghai region are discussed in this paper based on the spore - pollen and microfossil analysis of Zhaoxiang core.
12. In the summer of 2003 we began to zero in on one microfossil type whose complex morphological characteristics particularly intrigued us.