@misc{indiciaefa3345925a5f, title = {Zircon fission-track age of 0.45 million years on ash in the type section of the Merced Formation, west-central California}, author = {C.E. Meyer and M.J. Woodward and A.M. Sarna-Wojcicki and C. W. Naeser}, year = {1980}, doi = {10.3133/ofr801071}, url = {https://pubs.usgs.gov/publication/ofr801071}, note = {Source identifier: ofr801071} }