Tephra layers of Blind Spring Valley and related upper Pliocene and Pleistocene tephra layers, California, Nevada, and Utah : isotopic ages, correlation, and magnetostratigraphy - Sarna-Wojcicki, Andrei M. (U.S. Geological Survey, 2005)
"Identification, chemical correlation, and isotopic dating of the widespread tephra layers of Blind Spring Valley allow correlation of associated sediments and tephra layers among numerous localities in the southwstwern conterminous United States and provide a synoptic view of this large region during a short interval of late Cenozoic time"