Abstract photography can produce very dramatic images. It relies on our more primal sense of form, color, and curves than it does on detail. The problem is that most photographers tend to think in terms of detail when evaluating photographic opportunities.
Today, matching belts of sedimentary rock, known as the Old Red Sandstone, are found in Scandinavia, the United Kingdom, and eastern North America.
Devonian Period sandstone sedimentary rock is the second (2nd) construction material imported by the Stonehenge builders. This material is approximately 408 million years old. This stone is called Senni Beds (Old Red Sandstone) Formation rock. Green in color, this building material is from South Wales Coalfield area.