Ledge Formation at the Sandstorm and Kendall Gold Mines, Goldfield, Nevada PETER G. VIKRE ASARCO Inc., 510 East Plumb Lane, Reno, Nevada 89502 Abstract Gold ore at the adjacent Sandstorm and Kendall mines occurs in silicified fissures or ledges that formed by both open-space deposition and replacement of Miocene rhyolites 2 mi (3.2