2
mining(noun, study, treatment, science, knowledge)
2
noosphere(noun, form, study, science, field)
2
outer core(noun, expression, form, study, science)
2
ozone layer(noun, expression, form, study, science)
2
paleoceanography(noun, study, treatment, science, knowledge)
2
paleoclimatology(noun, form, study, science, field)
2
paleogeography(noun, study, treatment, science, knowledge)
2
paleoseismology(noun, study, treatment, science, knowledge)
2
paleotempestology(noun, form, study, science, field)
2
pedology(noun, study, treatment, science, knowledge)
2
pedosphere(noun, form, study, science, field)
2
petroleum geology(noun, expression, study, treatment, science)
2
petrology(noun, study, treatment, science, knowledge)
2
photogrammetry(noun, study, treatment, science, knowledge)
2
physical geodesy(noun, expression, study, treatment, science)
2
physical oceanography(noun, expression, study, treatment, science)
2
planetary boundary layer(noun, expression, form, study, science)
2
planetary geology(noun, expression, study, treatment, science)
2
plate tectonics(noun, expression, study, treatment, science)
2
quaternary geology(noun, expression, study, treatment, science)
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APASmart Define. (2011). earth science thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/earth_science/thesaurus/narrower
ChicagoSmart Define. 2011. "earth science thesaurus" https://smartdefine.org/earth_science/thesaurus/narrower (accessed September 27, 2026).
HarvardSmart Define 2011, earth science thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/earth_science/thesaurus/narrower>.
MLASmart Define. "earth science thesaurus" 22 May 2011. Web. 27 September 2026. <https://smartdefine.org/earth_science/thesaurus/narrower>