Homework #1 Glaciology, GEOL 4888, Spring 2017 Humphrey

Draw, by hand, a diagram of the molecular arrangement in an ice crystal (Ice Ih). Include at least 18 oxygens, and adjoining hydrogens. You can draw circles for the atoms, slightly bigger for the oxygens, and lines or dotted lines for the actual bonds. Include at least one Bernal-Fowler defect. Label the c-axis direction. If you do this carefully, you should be able to see the ‘puckered-ring’ structure of the basal plane oxygens and the ‘boat-like’ structure of the oxygens in the c-axis direction.

If you are brave, you can surf the web and try to figure out the difference between ice 1h and ice 1c (the common hexagonal and the rare cubic ice).