Astronomically Calibrated Timing, Mineralogy, and Geochemistry of the Upper Campanian Planktonic Foraminifer Radotruncana Calcarata Zone
Two sections spanning the planktonic foraminifer Radotruncana (Globotruncanita) calcarata Zone of the upper Campanian (Upper Cretaceous) are investigated in the Alps. Periodicity was obtained by power spectral analysis, sinusoidal regression, and Morlet wavelets. The duration of the calcarata Total Range Zone is calculated by orbital cyclicity expressed primarily in thickness data. Precessional, obliquity, and short and long eccentricity cycles are identified and result in a duration of ca. 806 kyr for the zone.
KeywordsUpper Cretaceous Radotruncana calcarata Austria
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