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Displaying 101 - 103 of a total of 103 items
March 31, 2017
More than just volcanic eruptions
Volcanic eruptions are a serious hazard. But at many stratovolcanoes in Washington, Oregon, Northern California, and Alaska, landslides and debris flows can be just as dangerous. Some of these - especially volcanic mudflows (lahars) - are directly triggered by...
March 09, 2017
Fresh water from underground
Groundwater is any water found underground in the cracks and pores in soil, sand, or rock. Groundwater provides 25% of the fresh water used in the United States.1 It is particularly important for irrigation and domestic uses in arid or remote areas, where surface water...
February 19, 2010
Recent Australian research has shown that while mineral production continues to grow strongly for almost all commodities (graph A), key ‘mega-trends’ underpinning this include declining ore grades (graph B), exponentially increasing waste rock (graph C), and variable success in expanding economic...
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