NASA image acquired March 21, 2012. After a nearly ice-free winter, Lake Erie was filled with multi-colored swirls of sediment on the first days of spring, 2012. The Moderate Resolution Imaging ...
Scenarios for sediment supply to the western Gulf of Mexico in the Miocene (A) and Pleistocene (B.) Sediment-source area for Miocene is shown in green; Laurentide and Cordilleran ice sheets and Rocky ...
Nitrogen is a critical building block for marine algae, yet the plankton in the Southern Ocean north of Antarctica leave much of it unused partly because they lack another needed nutrient, iron. The ...
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