The End of the Cretaceous: Sharp Boundary or Gradual Transition?

1984102 citationsJournal Article

Authors

Walter Álvarez · University of California, Berkeley

Luis W. Alvarez · University of California, Berkeley

Frank Asaro · University of California, Berkeley

Helen V. Michel · Lawrence Berkeley National Laboratory

Abstract

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. Arguments to the contrary, particularly those of Officer and Darke, are shown to invalid.

Topics & Keywords

Paleontology and Stratigraphy of Fossils Geological and Geochemical Analysis Hydrocarbon exploration and reservoir analysis

Publication Details

Published in: Science

Volume 223, Issue 4641, pp. 1183-1186

DOI: 10.1126/science.223.4641.1183

Field-Weighted Citation Impact: 28.98

Command Palette

The End of the Cretaceous: Sharp Boundary or Gradual Transition?

Authors

Abstract

Topics & Keywords

Publication Details