Agricultural lime takes time to work, but it provides excellent returns by improving soil pH, nutrient availability and fertilizer efficiency.

Figure 1 is a thematic view of the soil results and gold occurrences superimposed on a resistivity and airborne conductor map derived from an airborne survey flown by previous workers. Anomalous gold ...

In the forests of the southeastern United States, dense tree cover dominates most landscapes. That's why the Appalachian Trail is sometimes nicknamed "The Green Tunnel." But avid hikers know that ...

Much of our understanding of Earth's past is derived from stratigraphic records exposed in rock outcrops or recovered from drilled cores. These records span immense time intervals, from thousands to ...