Estuary Types and Features

The video tutorial explores estuaries, focusing on their types and geological characteristics. It covers four main types: coastal plain, fjord, bar-built, and tectonic estuaries. Each type is described with examples, such as the Chesapeake Bay for coastal plain estuaries and San Francisco Bay for tectonic estuaries. The video also discusses the formation and features of these estuaries, including the role of glaciers and sandbars.

What is an estuary?

• A desert region

• A type of mountain range

• A semi-enclosed basin where river water meets the ocean

• A fully enclosed body of water

Which of the following is NOT a type of estuary?

• Bar-built

• Mountain

• Fjord

• Coastal plain

How did coastal plain estuaries form?

• Due to tectonic shifts

• By the melting of glaciers and rising sea levels

• From meteor impacts

• Through volcanic activity

What is a key feature of a coastal plain estuary?

• A deep trench

• A delta where the river meets the ocean

• Steep cliffs

• A large waterfall

Which estuary type is characterized by steep walls and deep waters?

• Coastal plain

• Fjord

• Bar-built

• Tectonic

What is a 'sill' in the context of fjord estuaries?

• A sand dune

• A type of plant

• A buildup of material left by glaciers

• A type of fish

What forms a bar-built estuary?

• A volcanic eruption

• A sandbar or barrier island

• A tectonic fault

• A glacier

Where can you typically find bar-built estuaries?

• In the Arctic

• In desert areas

• Along coastlines with barrier islands

• In mountainous regions

What is a defining feature of tectonic estuaries?

• They have a large delta

• They are extremely linear and often deep

• They are surrounded by sand dunes

• They are formed by volcanic activity

Which fault is associated with the San Francisco Bay tectonic estuary?

• San Andreas Fault

• Hayward Fault

• New Madrid Fault

• Cascadia Fault