palaeoceanography
/ˌpalɪˌəʊʃəˈnɒɡrəfi/ /ˌpeɪlɪˌəʊʃəˈnɒɡrəfi/noun
The conditions and processes occurring in oceans in the past; the branch of science that deals with these.
Origin
1930s; earliest use found in William Arkell (1904–1958), geologist. From palaeo- + oceanography.