Chemostratigraphy
Chemostratigraphy is the study of the distribution of chemical elements and isotopes in rocks to understand the stratigraphic relationships and geological history of a particular area. It involves analyzing the composition of rock samples to determine changes in environmental conditions, such as fluctuations in sea level, climate, and sediment sources, over time. Chemostratigraphy helps geologists correlate and date rock layers, interpret depositional environments, and reconstruct past geological events.