👉 The term "autochthonal" is used in the context of geology and paleontology to describe a rock or sediment that has not been subjected to significant geological processes such as tectonics, erosion, or weathering. These rocks are often found within a layer beneath the Earth's surface and can be found in various types of environments, including marine and terrestrial ecosystems. In other words, "autochthonal" refers to rocks that have not undergone any significant changes or transformations during
