geothermal gradient

variation of temperature of Earth at different depths

en-US/ˌd͡ʒioʊˈθɝməl ˈɡɹeɪdiənt/
en-GB/ˌd͡ʒiːəʊˈθɜːməl ˈɡɹeɪdɪənt/

分类：

environmental gradienttemperature gradient