According to About.com, mature rivers are bodies of water that flow over wider valleys and snake along flat plains. The meandering streams then create larger loops that develop into oxbow lakes.
When mature rivers start to curve, they erode and cut the outside of the curves. They then proceed to deposit sediment on the interior of the curves. Streams move rapidly at the outside curves and slower on the inside curves. As time goes by, the deposition and erosion continues, and the curves become more circular and larger. An example of a mature river is the Mississippi, which winds and flows into the Gulf of Mexico.Learn More
The Danube River flows through Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania and Ukraine. Its headwaters begin with the confluence of the Brigach and Breg rivers in the town of Donaueschingen in western Germany's mountainous Black Forest region and empties into the Black Sea at the Danube Delta in western Ukraine.Full Answer >
The Indus River originates in Tibet and flows through India and Pakistan. It is the longest river in Pakistan and merges into the Arabian Sea near the city of Karachi. The total length of the river is 1,976 miles.Full Answer >
Africa's Nile River flows northward, emptying into the Mediterranean Sea. The Nile's two main tributaries are the Blue and White Nile Rivers, which originate in Ethiopia and Eretria's highlands and the Equatorial Lakes Region, respectively.Full Answer >
The Congo River flows through the Democratic Republic of the Congo and borders the Republic of the Congo. The river and the country it flows through were once called Zaire and the Zaire River.Full Answer >