Focus on Sedimentary Environments

A Pliocene carbonate beach

Roman Quarry near Cala Pi, Mallorca, Spain

zoom out
quarry face
zoom in
enlarged image
The quarry face.

The grains

Take a close look at the rock in this image and in the enlarged image, then try to answer the questions below:

Identify the dominant grain shape(s):

equant (cubic or spherical)
oblate (disc-shaped)
prolate (rod or roller shaped)

What other shape features do the grains show? What does this suggest about their origin?

Page © ; last updated 30 September, 2003