CH. 18 Notes Section 18.1 VIDEOS on Gases escaping from the Earth (toxic, sulphur based gases) Section 18.2 Review FLASH CARDS
Mr. Sabol at Ape Cave lava tube main entrance, Mt. Saint Helens, Washington state Ape Cave lava tube map, Mt. Saint Helens, Washington state Columnar Basalt Pictures
______________________________________________________________________________________ ![]() Obsidian knife blade: A knife blade manufactured from mahogany obsidian. The craftsman who made this blade had a very high skill level and was able to produce a serrated edge. Image copyright iStockphoto / Al Braunworth. ![]() Obsidian spear point: A spear point fashioned from opaque black obsidian. Image copyright iStockphoto / Charles Butzin. ![]() ![]() Obsidian jewelry: Obsidian pendent, a mahogany obsidian and snowflake obsidian cabochons set in sterling silver pendants. -----------------------------------------------------------------------------------------------------------------------
VIDEO -- The Eruption of Mount Saint Helens |