What type of delta is the Mississippi river?

The Mississippi River Delta is a river-dominated delta system, influenced by the largest river system in North America. The shape of the current birdfoot delta reflects the dominance the river exerts over the other hydrologic and geologic processes at play in the northern Gulf of Mexico.



People Also Ask

The Mississippi Delta, also known as the Yazoo–Mississippi Delta, or simply the Delta, is the distinctive northwest section of the U.S. state of Mississippi (and portions of Arkansas and Louisiana) that lies between the Mississippi and Yazoo rivers.

MORE DETAILS

It measures seventy miles across at its widest point and encloses an area about two hundred miles long that writer William Alexander Percy called “a badly drawn half oval.” The Delta is unusually flat, with elevation going from 205 feet above sea level below Memphis to 80 feet above at Vicksburg and averaging an ...

MORE DETAILS

The Ganges-Brahmaputra delta is the world's largest delta, covering most of Bangladesh and the state of West Bengal (India). The size of the delta is a reflection of the enormous input of sediment being washed off the still-growing Himalayan mountains into the Ganges river basin.

MORE DETAILS

Deltas have different shapes depending on how much sediment is deposited by the river compared to how much sediment is eroded and redeposited by waves and tides. A river dominated delta, such as the map below of the Mississippi delta, Louisiana, USA, is sometimes called a bird's foot delta because of its shape.

MORE DETAILS

One big difference between the two is that while the Nile delta is shrinking (the Mediterranean Sea is eating away more sediment than the river can supply), the Mississippi delta is growing. The image below shows the growth of the Mississippi delta over the past 10,000 years.

MORE DETAILS

On average, the Mississippi River Delta loses one football field of land per hour and has shrunk by 5,000 square miles in the last 80 years. To understand more about why some parts of the delta are disappearing due to sea-level rise, a team of NASA scientists will begin collecting data this spring.

MORE DETAILS

The term delta comes from the upper-case Greek letter delta (?), which is shaped like a triangle. Deltas with this triangular or fan shape are called arcuate (arc-like) deltas. The Nile River forms an arcuate delta as it empties into the Mediterranean Sea.

MORE DETAILS

Stretches of the Mississippi River within the park corridor exceed water quality standards for mercury, bacteria, sediment, PCBs (polychlorinated biphenyl), and nutrients. Unfortunately, these impairments can make the water unsuitable for fishing, swimming, and drinking.

MORE DETAILS