Quaternary geology is the branch of geology that study developments from 2.58 million years ago to the present.
[1][2] In particular, Quaternary geology study the process and deposits that developed during the Quaternary, a period characterized by glacial-interglacial cycles.
[1] Quaternary geological investigations that require the dating of rocks or sediments require a complementary array of methods to determine that age.
Since Quaternary geology involves studying changes on the Earth's surface up to the present, Quaternary geologists benefit from the preservation of time-dependent chemical or biological processes.
These methods include lichenometry,[3] dendrochronology,[4] and amino-acid racemization.