Category
page 1Geological tools
geologist's hammer
hammer used for splitting and breaking rocks
geologic compass
compass that measures azimuth and inclination in one operation
Schmidt hammer
measuring instrument
blowpipe
tool used to direct stream of gas
seismic vibrator
method
Tiltmeter
thumb|right|A tiltmeter on Mauna Loa, used to predict eruptions by measuring very small changes in the profile of the mountain.