Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Disciplines (hierarchy name)
4. disciplines (concept)
5. [science and related disciplines]
6. science (modern discipline)
7. natural sciences
8. physical sciences
9. chemistry

Additional parents:

1. top of the aat hierarchies
2. Activities Facet
3. Disciplines
4. disciplines
5. science and related disciplines
6. science
7. natural sciences
8. physical sciences
9. earth sciences

Anotations

Scope note:

Study of the chemical composition of the earth. It involves estimating the abundance of the constituent elements and their isotopes, as well as their distribution in the lithosphere, atmosphere, biosphere, and hydrosphere, and in the rocks and minerals that make up the earth.