Highly evolved, silica-rich lavas have been recovered from several different locations along the global MOR system. Over the course of two decades, basalt (50-51 wt.% SiO2), basaltic andesite (52-55 wt.% SiO2), andesite (56-61 wt.% SiO2), and daci...
Agricultural streams are subject to considerable disturbance including channelization, erosion, and sedimentation. Fertilizer is often applied to agricultural fields in excess of crop demand, and nitrogen (N) and phosphorus (P) can be transported ...
