2012/03/01 by Adrian L. Melott, Richard K. Bambach, K. Petersen +1 · 1 citation
Earth and Planetary Sciences · Environmental Science · #Paleontology and Stratigraphy of Fossils #Geology and Paleoclimatology Research #Isotope Analysis in Ecology
paper · doi:10.1086/663877
openalex publication_date 2012/03/01 · openalex created_date 2019/07/30 · openalex updated_date 2026/07/30
We find that the marine 87Sr/86Sr record shows a significant periodicity of m.yr. The 87Sr/86Sr record is out of phase with a 62 (±3)-m.yr. periodicity previously reported in the record of marine animal diversity. These periodicities are close to 58 (±4)-m.yr. cycles found for the number of gap-bounded sedimentary carbonate packages of North America. We propose that these periodicities reflect the operation of a periodic “pulse of the earth” in large-scale earth processes. These may be linked to mantle or plate-tectonic events, possibly uplift, which affects the earth’s climate and oceans and, thus, the geochemistry, sedimentation, and biodiversity of the marine realm.