Before using the elemental spell books you will need to learn about elemental magic and which spells are available to the elemental path that has been chosen. Only a very experienced elementalist can create spells outside of those in the elemental books.
Elemental Earth Spell: Tremor
Ingredients: Dry dirt, ground volcanic rock.
Procedure: Dump a basket of mixed dirt and ground volcanic rock into a small hole dug in the earth. Walk far away, and concentrate fully upon the prepared location.
Result: From a foot, to a twenty foot radius, the ground will shake in varied intensity. Size and strength of tremor depends on the will and knowledge of the caster.
Elemental Earth Spell: Quicksand
Ingredients: Mud, brown grass.
Procedure: Massage brown grass with two handfuls of mud while focusing on a nearby plot of land. Throw the prepared mud on the desired location.
Result: With enough skill and concentration the ground will loosen and soak through, becoming perilous quicksand in the nearby area.
Elemental Earth Spell: Chasm
Ingredients: Jagged quartz, volcanic rock chunks, phosphorus.
Procedure: Mix ingredients and scatter them over a plot of land. Distance yourself, concentrate all mind and will on location.
Result: The ingredients will superheat, infuse into the ground and splinter it. A rippling line splinters the earth up to five feet to each side, leaving a gaping chasm.
Unless the caster has great skill and experience, a tiny crack in the ground will result, instead of a perilous gap in the earth.