Exploring Barrier Ecology and Geology on Capers Island

The video discusses the erosion of Capers Isle, explaining how barrier islands lose and gain sand through processes like longshore transport. It covers the formation of barrier islands, highlighting the role of sand from the Appalachian Mountains. The importance of tides and sand dunes in coastal defense is explained, along with how barrier islands move over time, revealing historical changes and Native American artifacts.

What is the annual rate of erosion for Capers Isle since 1875?

• 5 to 15 feet

• 15 to 30 feet

• 10 to 20 feet

• 20 to 40 feet

Tags

NGSS.MS-ESS2-2

What natural process is responsible for the movement of sand along South Carolina's coast?

• Longshore transport

• Tidal waves

• Oceanic currents

• Wind erosion

How old are barrier islands according to geologists?

• 4 to 6 thousand years

• 10 to 12 thousand years

• 1 to 2 thousand years

• 7 to 9 thousand years

What is the primary ingredient needed to form a barrier island?

• Silt

• Gravel

• Clay

• Sand

From where does the sand on South Carolina's beaches originate?

• Himalayas

• Andes Mountains

• Rocky Mountains

• Appalachian Mountains

What is the first step in the formation of a barrier island?

• Creation of a rock line

• Growth of salt-tolerant plants

• Formation of dunes

• Accumulation of sand

Why are sand dunes important for barrier islands?

• They are used for sand mining

• They attract tourists

• They prevent animal habitats

• They act as a defense against storms

What happens when barrier islands lack sand dunes?

• Enhanced wildlife diversity

• Greater sand deposition

• Improved stability of the island

• Increased erosion and damage to inland forests

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What does the presence of old salt marsh mud on the beach indicate?

• Decrease in marine life

• Stability of the island

• Recent formation of the island

• Movement of the barrier island over time

Tags

NGSS.MS-ESS2-2

What evidence suggests that Native Americans preferred living on the backside of barrier islands?

• Historical texts describing beachfront properties

• Discovery of shell middens and pottery

• Findings of large settlements on the beachfront

• Artifacts found in the deep ocean