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Posts tagged Amapá

Sediments in Amazon River Mouth and Along Shore of French Guiana and Amapá, Brazil

0.6N 49.8W

August 26th, 2011 Category: Rivers, Sediments

Brazil - August 25th, 2011

Dense brown sediments spill out of the mouth of the Amazon River and line the coastline of the Brazilian state of Amapá and French Guiana (upper left corner).

At 4,080 miles long, the Amazon is the second longest river in the world after the Nile.  It runs from the Andes Mountains in Peru through Brazil to the Atlantic Ocean. It contains more water than any other river in the world- more than the Mississippi, the Nile and the Yangtze combined. In one second the Amazon pours more than 55 million gallons, or 600,000 cubic meters of water, into the Atlantic Ocean, which dilutes the ocean’s saltiness for 100 miles from shore.

 

Sediments Expelled by the Amazon River, Brazil

1.6N 49.9W

January 4th, 2010 Category: Rivers

Brazil - November 17th, 2009

Brazil - November 17th, 2009

Thick brown sediments flow forth from the mouth of the Amazon River in northern Brazil. The land west of the river belongs to the state of Amapá, while that east of the river is part of the state of Pará. The habitat of both states is mostly tropical rainforest.

The rivermouth itself, usually measured from Cabo do Norte in Amapá to Punto Patijoca in Pará, is some 330 kilometres (210 mi) wide. As one can observe here, the Amazon does not have a protruding delta. This is due to an intense tidal bore that rapidly whisks away the vast volume of sediments carried by the Amazon before a delta can form beyond the shoreline.