palaeolimnology
/ˌpalɪəʊlɪmˈnɒlədʒi/ /ˌpeɪlɪəʊlɪmˈnɒlədʒi/noun
The conditions and processes occurring in lakes in the geological past; the branch of science that deals with these.
Origin
1940s; earliest use found in American Journal of Science. From palaeo- + limnology.