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Oklahoma History

Chapter Two

TermDefinition
aquifers underground formation made of rock, silt, or clay where water has collected over centuries
bituminous coal soft grade of coal, a natural substance used as fuel to generate electric power
bryozoans seaweed like creature found in the inland seas.
derrick part of the equipment used for drilling oil
dolomite rock that is rich in calcium and was formed from deposits of billions of skeletons and shells.
fossils preserved remains of plants or animals.
groundwater water found beneath the earth's surface
limestone rock that is rich in magnesium, formed from the deposits of billions of skeletons and shells
petroleum dark, unrefined oil
quarries places where stone or slate is dug out
supercontinent the great land mass known as Pangea that geologists hypothesize, broke apart 200-300 million years ago, the pieces eventually forming the continents that we know today.
trilobite most common form of early marine life when the sea covered most of the earth.
Created by: Jassman
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