Abstract
The chalk is an extremely pure biogenic carbonate sediment. The material examined includes bulk samples as well as individual bryozoan skeletons. The 87Sr/86Sr ratios obtained were all within the analytical error of the value 0.7075 supporting this value as the isotopic composition of sea water at Late Cretaceous and Early Tertiary time. -Authors
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CITATION STYLE
APA
Oluf Jorgensen, N., & Larsen, O. (1980). The strontium isotopic composition of Maastrichtian and Danian chalk. Bulletin Geological Society Denmark, 28, 127–129. https://doi.org/10.37570/bgsd-1979-28-15
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