Beach Project - Black Sand Beach
By: Andrew Ashbrook
Black Sand Beach is also known as Punalu'u beach on the biggest island of Hawaii
Enjoyed by tourists of all ages
The Beaches geography and its origin
The sand of Black Sand Beach come from volcanic activity. When the lave from the volcano comes in contact with the ocean water its cooled at an accelerated rate causing it to crack. Then with time and erosion the sand of Black Sand Beach is formed.
The geography of Black Sand Beach is very simple.
- The beach is a passive coast on the inside of its tectonic plate away from tectonic activity
- It was created by volcanic forces and is a primary coast
- It is an emergent coast cause it has been rising relative to sea level since its existence