Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. scientific concepts
5. physical sciences concepts
6. geological concepts

Narrower term/s

• speleothems [NP][+]
  • stalagmites
  • stalactites

Anotations

Scope note:

In geology, the fundamental units of lithostratigraphy comprising distinctive assemblages, layers, or units of rock in an area, characterized as being of homogeneous origin and appearance. The designation and limits of a given geological formation may vary, depending upon the criteria imposed by the cataloging body.