#sedimentary rocks

• Allogenous — Of a different origin, born or formed elsewhere than its current location; an element (mineral, rock fragment, population, or individual) that is foreign to the indigenous environment in which it is integrated. In geology, it defines minerals transported from the outside and deposited in a sedimentary basin, while in sociology and anthropology, it refers to population groups originating from a geographic or cultural region different from the native one.
• Ammonite — A fossil marine cephalopod mollusk from the Ammonoidea subclass, characterized by an external, planospiral, and chambered calcareous shell, which lived from the Devonian period until the end of the Cretaceous. The fossils of these organisms are widely used in stratigraphical geology as index fossils for the precise dating of sedimentary rock layers from the Mesozoic era.
• Argilliferous — Containing clay, yielding, or sheltering massive deposits of clay; specific to sedimentary rocks or geological strata rich in clay minerals. In a scientific and structural sense, the adjective defines the quality of soils or detrital formations (such as argilliferous sandstones or argilliferous limestones) exhibiting high plasticity and impermeability properties due to the pelitic mineral fraction within their composition.