Geology

Hornfels Formed?
Hornfels is formed when mudstone or shale come in contact with metamorphic rock and a hot igneous body, this represents...
How Do Volcanic Rocks Differ in Composition?
Volcanic rocks differ due to their rapid eruption as well as the time it takes to cool down. This makes some to be plutonic...
A Machine Used to Measure Earthquake Activity?
The machine that is used to measure earthquakes is known as seismograph or a seismometer. An earthquake is the effect that...
What Causes Convection Currents in Earth's Mantle?
The activity of very hot material that exists at the deepest part of the mantle is responsible for convection currents....
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