Coasts

All the coasts and beaches have their own physical and geological characteristic. A rocky or sandy beach is a good example of a physical coastline. There are beaches that are made of fish poop which is both physical and geological. An example of a geological coastline can be cape cod and how it is made from glacial erosion. All coastlines have their own dynamic feature.

For the past week our class has been working on a packet on estuaries and coasts. A primary coast is a coast mostly made from land erosion and volcanic activity. A secondary coast is a coast that has been made up of water, erosion, and marine life such as shells and fish poop. We looked at eighteen estuaries and classifications.

On the graph the three different estuaries go in different directions on the graph. Line a starts low and then goes up. Line b is very basic and stays near the same depth. Line c almost gets as deep as line a.

In the packet we got specific classifications for the twelve estuaries listed. There are coastal plain estuaries, fjords, bar built estuaries, and tectonic estuaries. For example San Francisco is a tectonic estuary.  That means the estuaries was made from plate tectonics.