Albian Chalk is a type of sedimentary rock formed during the Albian stage of the Cretaceous period, approximately 113 to 100 million years ago. It is primarily composed of chalk, which is made up of tiny marine organisms called coccolithophores. This rock is typically white or light-colored and is found in various locations, particularly in Europe. The Albian Chalk is significant for its fossil content, which provides valuable insights into ancient marine environments. It is often studied by geologists and paleontologists to understand the Earth's history and the evolution of life during the Cretaceous period.