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13 Cards in this Set
- Front
- Back
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History of life as documented by fossils, the remains or imprints of the organisms from earlier geological periods preserved in sedimentary rock. |
Fossil records |
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Earthquake waves, including primary waves, secondary waves, and surface waves. |
Seismic waves |
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It is a record of the ground motion at a measuring station as a function of time. Typically record motions in three Cartesian axes (x, y, and z), with the z axis perpendicular to the Earth's surface and the x- and y- axes parallel to the surface. |
Seismogram |
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All the physical, recognizable, naturally formed features of land, having a characteristic shape; includes major forms such as a plain, mountain, or plateau, and minor forms such as a hill, valley, or alluvial fan. |
Landform |
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A scientist who studies the solid and liquid matter that constitutes the Earth as well as the processes and history that has shaped it. |
Geologists |
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Area where new ocean floor is formed when lava erupts through cracks in Earth’s crust. |
mid-ocean ridge |
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A person who conducts scientific study of earthquakes and of the internal structure of the Earth. |
Seismologists |
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A force exerted by one part of a system on another |
Internal forces |
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Large ancient landmass that was composed of all the continents joined together. |
Pangea |
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Hess’s theory that new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge. |
sea-floor spreading |
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Remains, imprints, or traces of prehistoric organisms that can tell when and where organisms once lived and how they lived. |
Fossils |
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A process by which rocks, over geologic ages, can be changed into different kinds of rocks. |
Rock cycle |
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A Geologist who studies volcanoes and volcanic activity. |
Volcanologists |
