Geochemistry



[jee-oh-kem-uh-stree] /ˌdʒi oʊˈkɛm ə stri/

noun
1.
the science dealing with the chemical changes in and the composition of the earth’s crust.
/ˌdʒiːəʊˈkɛmɪstrɪ/
noun
1.
the geology and chemistry concerned with the chemical composition of, and chemical reactions taking place within, the earth’s crust
geochemistry
(jē’ō-kěm’ĭ-strē)
The scientific study of the chemical composition of the Earth or other celestial body and of the reactions that control the distribution of chemical elements in its minerals, rocks, soil, waters, and atmosphere.

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  • Geochronology

    [jee-oh-kruh-nol-uh-jee] /ˌdʒi oʊ krəˈnɒl ə dʒi/ noun 1. the of the earth, as based on both absolute and relative methods of age determination. /ˌdʒiːəʊkrəˈnɒlədʒɪ/ noun 1. the branch of geology concerned with ordering and dating of events in the earth’s history, including the origin of the earth itself n. 1893, from geo- + chronology.

  • Geochronometry

    [jee-oh-kruh-nom-i-tree] /ˌdʒi oʊ krəˈnɒm ɪ tri/ noun 1. the determination of the absolute age of earth materials, as by radiometric dating. geochronometry (jē’ō-krə-nŏm’ĭ-trē) The measurement of geologic time using absolute measures, such as radiometric dating, or relative measures, such as determining the sequence of deposition of rock strata.



  • Geocode

    [jee-uh-kohd] /ˈdʒi əˌkoʊd/ noun 1. the characterization of a neighborhood, locality, etc., according to such demographic features as ethnic composition or the average income or educational level of its inhabitants, especially as used in marketing.

  • Geocorona

    [jee-oh-kuh-roh-nuh] /ˌdʒi oʊ kəˈroʊ nə/ noun 1. a belt of ionized hydrogen surrounding the earth at the outer limit of the exosphere. geocorona (jē’ō-kə-rō’nə) The halo of far-ultraviolet solar light that reflects off the Earth’s exosphere.



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