1. Geology of Mercury By Triana Henz

2. Stratigraphy Terrian reconnaissance –Images of the planet Classification of images –Find cause and affect Chronostratigraphic classification –Finding major events

3. First Map of Mercury Trask and Guest were the first to map Mercury once the Mariner 10 images were analyze There were six things that had caught their eyes the first time they were looking at the images Other people after them help develop the stratigraphic that is used today for Mercury

4. Wide-spread inter-crater plains

5. Heavily cratered plains

6. Caloris basin and related deposits

7. Smooth Plains

8. Hilly and Lineated antipodal to Caloris Basin

9. Younger craters

10. Pre-Tolstoj The oldest identified terrian Occurred before 4 Gigaannum (Ga) Multiringed basin deposits Extensive intercrater plains High impact rate Crustial formation and early evolution

11. Tolstojan System Tolstoj basin ~4 - 3.5 Ga Goya Formation “Archimedean” craters

12. Calorian System Caloris Impact and basin Wide-spread smooth plains 3.9 – 3(.5) Ga Caloris Group

13. Caloris Montes and Nervo

14. Odin

15. Van Eyck Formation

16. Mansurian System Mansur crater Other impact craters with no bright rays No evidence for regional volcanic or tectonic activities ~3(.5) – 1 Ga

17. Kuiperian Period ~1 Ga to present Bright-rayed crater Kuiper Deposits of impact craters with their bright rays still visible

18. Messenger Let us see what’s on the “dark side” The respective data that is collected will help place together the global geologic sequence together The data will help piece together the history of Mercury