Geologic map of Northern Europe. Numbers in white boxes are ¹⁸⁷Os/¹⁸⁶Os values for freshwater Fe-Mn crusts and nodules. Numbers in blue boxes are ¹⁸⁷Os/¹⁸⁶Os values for Fe-Mn nodules from the Baltic Sea. See Peucker-Ehrenbrink and Ravizza (1996) for discussion.

Publications:

Peucker-Ehrenbrink, B. and G. Ravizza (1996). Continental runoff of osmium into the Baltic Sea. Geology, 24, 327-330, 1996.

Ravizza, G. and B.K. Esser (1993). A possible link between the seawater osmium isotopic record and weathering of ancient sedimentary organic matter. Chem. Geol., 107, 255-258.

1. Reconstructing the Os-isotope Record of Seawater
2. Isotope Topology of the Mantle
3. Partitioning of Os between Mineral Phases in Mantle-derived Rocks
4. Reconstructing the Flux of Extraterrestrial Matter to Earth through Time
5. Anthropogenic PGE Pollution of Coastal Environments