Green and Tan Sediments in Rio de la Plata Estuary – July 11th, 201235S 56.7W
Sediments diffusing into the Atlantic Ocean give intense coloring to the Rio de la Plata estuary, separating Argentina (left) and Uruguay (above). The sediments rushing into the estuary from the Paraná and Uruguay Rivers give its upper reaches a dark tan hue, which changes to opaque yet lighter tan near the mouth, before mixing with the waters of the Atlantic Ocean in beautiful greenish tones. Visible near the left edge, on the shores of the estuary, is the Argentine capital, Buenos Aires. Montevideo, the Uruguayan capital, can be seen near the right edge.