🧑‍🔬⛏️|🌋➖|

#volcanology #geological record #stratigraphic column #volcanic stratum #field geology

🌍📜⏳

#earth history #geological record #rock record #historical geology #deep time #geological time scale

⏳🌋➡️📄

#geochronology #paleo volcanology #volcanic history #geological record #ancient eruption #stratum record