Figure 7. Map of the Carlin basin area, showing the original known and inferred extents of the sedimentary basin, the middle Miocene andesite and Palisade Canyon rhyolite flow units, and dates of various sedimentary and volcanic units. Uncolored areas include areas of pre-Miocene basement rocks in the surrounding ranges. See Table 1 for geochronologic information. The modern digital elevation map is used as the base.