Date of fall: 4 October 1975, 1220 hrs. Class and type: Iron. Total weight: 14.3 kg Source: S. Song, R. Li and Z. Zhon, 1976.-ray spectrometric measurements on the Ningbo iron meteorite for its radioactive species produced by cosmic rays. Geochimica pp. 273-278 .
Title: Ningbo: A New Iron Meteorite with Isotopically Anomalous AG Authors: Chen, J. H., Wasserburg, G. J., & Daode, W.
The discovery of excess 107Ag (107Ag*) was originally made in a IVB iron meteorite (Santa Clara), which is extremely depleted in volatiles so that 108Pd/109Ag is enriched by several orders of magnitude over average solar abundances (108Pd/109Ag = 1.45).
