Small uniform light-colored sand grains are exclusively of marine origin in this sample from Doigahama beach, located on Yamaguchi Island in Japan.

Geographic Overview

  • Doigahama Beach Shimonoseki Japan Sand Geography 1
  • Doigahama Beach Shimonoseki Japan Sand Geography 2 Copy

The Doigahama site is located in the center of the small plain on the coast of Hibiki Bay, where stunning white sand dunes form perpendicular to the clear blue Sea of Japan. Historically it was a gateway from the Asian continent. It is also an archaeological necropolis where 240 sets of 2,500 year-old remains have been excavated. The excavated human skeletal remains at Doigahama site have expanded our understanding of the roots of the Japanese people.

Doigahama Beach Shimonoseki Japan Sand Geography 3
Sand Location

See where this sand sample was collected on Google Maps.

Earth Map
Virtual Sand Tour

Explore an interactive map of Doigahama Beach on Google Earth.

Low magnification of small, white, tan, pink and red grains that are fragmented remains of a spectrum of marine organisms

White, tan and purple finely striated pieces of mollusk shells are present among a mixed variety of white and translucent marine fragments.

Purple mollusk shell fragments are present along with a variety of smoothly worn shards plus small pieces of sea urchin spine.  A transparent sea urchin spine is at the center of the image with an off-white urchin spine a short distance to the right of the center sea urchin spine.

This higher magnification of figure 4 shows the detail of the circular multichambered foraminifera test.

Details of pink, red, purple and tan shell pieces along with a variety of smoothly worn transparent and translucent marine fragments are present in this sample. All sand grains have smooth edges as a result of wear from wave action.