Isotopic evidence for temperature variation during the early Cretaceous (late Ryazanian–mid-Hauterivian)
Oxygen and carbon isotopic compositions have been determined from the belemnite genera Acroteuthis and Hibolites sampled from the early Cretaceous (Ryazanian–Hauterivian) interval of the Speeton Clay Formation, Filey Bay, England. The Speeton Clay Formation consists of a series of claystones and cal...
| Ձևաչափ: | Journal article |
|---|---|
| Հրապարակվել է: |
2000
|
| Խորագրեր: |