igneous rock
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Terms in this set (23)
geothermal energyEnergy from steam or hot water produced from hot or molten underground rocks.Constructive plate boundaryPlates that move away from each otherConservative plate boundaryTectonic plate margin where two tectonic plates slide past each other.Destructive plate boundaryPlates that move towards each otherMagmamolten rockLavaMagma that reaches Earth's surfaceactive volcanoa volcano that is erupting or has shown signs that it may erupt in the near futuredormant volcanoA volcano that has not erupted for a long time, but may erupt again one day.extinct volcanoA volcano that has not erupted for thousands of years and probably will not erupt again.shaft miningmethod of excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottomQuarryingremoving loosened blocks from the bed of a channel during times of high flow ratesoreRock that contains a metal or economically useful mineralSome base metals areIron, lead and zinc