The Wealden Group refers to a geological formation, characterized by layers of sedimentary rocks, that were deposited during the Early Cretaceous period in the Mesozoic Era. The term "Wealden" is derived from the Weald, an ancient area located in southeastern England.
Comprising an extensive sequence of strata, the Wealden Group is primarily composed of clays, sands, mudstones, and siltstones. These deposits were mainly laid down in a terrestrial, non-marine environment, indicating the presence of rivers, floodplains, and lakes during the Early Cretaceous period. The Wealden Group is a key source of information about the ancient flora and fauna that existed in this region.
The fossil record found within the Wealden Group is particularly significant in understanding the biodiversity of the Early Cretaceous period. Fossils of various terrestrial and freshwater organisms, such as dinosaurs, turtles, crocodiles, fish, insects, and plants, have been discovered within these sedimentary rocks. These fossils provide valuable insights into the paleoecology, climate, and evolutionary history of this time.
Given its significance, the Wealden Group has been extensively studied by geologists and paleontologists. Its strata have been subdivided into several formations based on lithological characteristics and underlying geological processes. The Wealden Group has both scientific and economic importance, with its reservoirs potentially containing valuable hydrocarbon deposits.
Overall, the Wealden Group represents a distinct geological formation from the Early Cretaceous period, composed of sedimentary rocks deposited in a terrestrial environment, offering valuable insights into the ancient ecosystems and climate of southeastern England.
