This is the principle of cross-cutting relationships. The principle states that any geologic features that cut across strata must have formed after the rocks they cut through (Figures 2 and 3).

that geological strata associated with these changed conditions are "distinct from Holocene strata"; and that the plutonium concentrations from the stratotype section at Crawford Lake, Canada has ...

It was through a letter dated March 30, 1579 that Giovanni Arduino announced the four orders that form the basis of ...

A University of Tokyo research team says it has succeeded in collecting microorganisms from two-billion-year-old geological strata in South Africa that may still be alive. If confirmed ...

Emily Costello, a planetary scientist at the University of Hawaiʻi at Mānoa, was selected by NASA as one of eight ...