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.
1 The picture shows a type of rock called a banded iron formation. The rock contains high levels of iron oxides minerals, which form only when iron at Earth's surface combines with oxygen. 2  The picture shows a type of rock called a banded iron formation. The rock contains high levels of iron oxides minerals, which form only when iron at Earth's surface combines with oxygen. Approximately how old would Earth's oldest banded iron formations be? AndrÃ© Karwath/Wikimedia 3 billion years old 4.6 billion years old 5 billion years old 65 million years old.