Chronostratygraphy
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from gr. and lat. (chrónos) “time,” stratus (past participle of sternere) “base, layer,” and the Greek γράφειν (graphía) “study, writing”
A branch of Earth sciences, specifically stratigraphy, that studies rock formations and assigns them arelative age, arranging them in chronological order.
Its purpose is to establish the chronological order of events on Earth by dividing rocks into geological units ( series, grouped into stages, systems, eratems and eonotems) that correspond to specific geological time intervals (ages, epochs, periods, eras and eons).
Browse the in-depth slides (currently available in Italian)
Credits and acknowledgments
Special thanks to Damiano Furlan for creating the slides.