Extraterrestrial Cause for the Cretaceous-Tertiary Extinction
Platinum metals are depleted in the earth's crust relative to their cosmic abundance; concentrations of these elements in deep-sea sediments may thus indicate influxes of extrat...
Publications
2 shownThe End of the Cretaceous: Sharp Boundary or Gradual Transition?
Evidence indicates that the Cretaceous-Tertiary boundary is very sharp, and, within the limits of resolution, it is apparently synchronous at the various boundary localities. Ar...
Frequent Co-Authors
Researcher Info
- h-index
- 2
- Publications
- 2
- Citations
- 4,031
- Institution
- Lawrence Berkeley National Laboratory
External Links
Impact Metrics
h-index
2
h-index: Number of publications with at least h citations each.