"Flood geology" is a term used to describe the belief that all geological features on Earth were created by a catastrophic global flood, as described in the biblical story of Noah's Ark. While this term is commonly used in creationist circles, there are other terms with similar meanings, such as "catastrophism," which refers to the belief that geological features were formed by a series of catastrophic events, rather than gradual processes. Another term is "young Earth creationism," which posits that the Earth and all its geological features are less than 10,000 years old, in line with biblical chronology.