Duncan Heron

	What a place to visit! A walk in a cemetery will make all your problems seem small.
	There are rocks to see and the effects of weathering and other processes to examine. So lets go.

	All old churches have graveyards.

	Essentially unreadable text because of acid rain.

	Most tombstone in this cemetery are nearly unreadable because acid rain reacts with the calcium carbonate in the tombstone marble.

	This one is almost entirely unreadable (note “OF” in upper right). The location is the Halifax, NS cemetery.

	This tombstone is made of slate. The text is clear, but the rock has split along the slaty cleavage. Perhaps the agent was frost wedging.

	This tombstone is bent, perhaps by a type of mineral creep.

	Back to Halifax where we see another bent tombstone. How does rock bend without breaking over a short time span?

	John Punch is slowly loosing his identity by spalling of rock flakes, a type of weathering going on since 1849. Halifax cemetery.

	If you seek immortality from a tombstone, choose the rock carefully.

	Halifax cemetery. Why are some of the tombstones tilted?

	Tilting is often caused by creep, a type of mass movement where the upper soil one slowly moves down slope under the influence of gravity. Halifax, NS