one approach study relict landforms infer ancient climates ref name gutix ref often concerned past climates climatic geomorphology considered sometimes theme historical geology climatic geomorphology limited use study recent quaternary holocene large climate changes since seldom discernible geomorphological record ref name goudie ref timing proxies field geochronology scientists working determining old certain proxies recent proxy archives tree rings corals individual year rings counted exact year determined radiometric dating uses properties
Social science Geography Palaeoclimatology