1. Geochemical maps showing distribution and abundance of molybdenum in two fractions of stream-sediment concentrates, Silver City 1⁰?x 2⁰ quadrangle, New Mexico and Arizona [cartographic material] Yale Public content 1986. 2002-06-01T04:00:00Z. 2016-04-11T17:22:43Z. Geological Survey (U.S.). The Survey ; For sale by Branch of Distribution. English. Public. New Mexico and Arizona.