@misc{indiciaeebc0b8191a95, title = {U-Pb SHRIMP dating of uraniferous opals}, author = {A.A. Nemchin and L.A. Neymark and S.L. Simons}, year = {2006}, doi = {10.1016/j.chemgeo.2005.09.005}, url = {https://pubs.usgs.gov/publication/70030444}, note = {Source identifier: 70030444} }