Record added under the National Geological and Geophysical Data Preservation Program grant award G11AP20188 August 2011–July 2012. Materials reviewed under the National Geological and Geophysical Data Preservation Program grant award G15AP00119 August 2015–August 2016. Record modified by Kimberly J. Cook under the NGGDPP grant award G19AP00086 July 2019–June 2020.