We directly link iridium (Ir) anomalies in New Jersey to the mass extinction of marine plankton marking the Cretaceous-Paleogene (K-Pg) boundary. We confirm previous reports of an Ir anomaly 20 cm below the extinction of Cretaceous macrofauna (the "Pinna" bed) with new results from a muddy sand section from Tighe Park, Freehold, New Jersey (United States), but we also show that Ir anomalies correlate with marine mass extinctions at three other clay-rich New Jersey sections. Thus, we attribute the anomaly at Freehold to the downward movement of Ir and reaffirm the link between impact and mass extinction. © 2010 Geological Society of America.
CITATION STYLE
Miller, K. G., Sherrell, R. M., Browning, J. V., Field, M. P., Gallagher, W., Olsson, R. K., … Wahyudi, H. (2010). Relationship between mass extinction and iridium across the Cretaceous-Paleogene boundary in New Jersey. Geology, 38(10), 867–870. https://doi.org/10.1130/G31135.1
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