Module 6 Word Scramble
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terms | definitions |
catastrophism | the view that most of earth's geological features are the result of large-scale catastrophes such as floods, volcanic eruptions, etc. |
uniformitarianism | the view that most of earth's geological features are the result of slow, gradual processes that have been at work for millions or even billions of years. |
humus | the decayed remains of once-living creatures |
minerals | inorganic crystalline substances found naturally in the earth |
weathering | the process by which rocks are broken down by the forces of nature |
erosion | the process by which sediments and rock fragments are carried away by wind or rain |
unconformity | a surface of erosion that separates one layer of rock from another |
sedimentary rock | rock formed from sediments (sand, silt, and other components of soil) and laid down by water or some other agent. |
igneous rock | rock formed from molten rock, which is usually called magna. |
metamorphic rock | rock that has undergone extreme change due to lots of heat and pressure. |
lamination | when a single layer of rock is less than 1 centimeter |
nonconformity | when stratified layers rest on top of unstratified layers |
disconformities | when there are parallel, stratified rock layers above and below the unconformity, but there is a clear surface of erosion between them |
paraconformities | unidentifiable unconformities |
intrusion | "veins" of igneous rock that shoot right through several layers of sedimentary rock |
sills | intrusions that run in the same direction as the strata |
dikes | "veins" that run perpendicular to the dirrection of the strata |
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