All Questions
Tagged with paleoclimatology fossils
2 questions
5
votes
1
answer
388
views
Why the $\delta \, ^{18}\text{O}$ in foraminifera shells decrease with temperature even if the oceanic $\delta \, ^{18}\text{O}$ stay constant?
I understand why foram shells contain more $^{18}\text{O}$ when there are ice sheets present, since $^{16}\text{O}$ evaporates more readily and gets trapped in the ice, increasing the relative ...
- 17.7k
15
votes
2
answers
508
views
What, if any, paleoclimate data can be derived from stromatolite fossils?
Stromatolite fossils have a layered structure vaguely reminiscent of tree rings, which are a well-known source for climate data. Although the formation process of stromatolite layers is less seasonal ...
user26