GS One‑Liners

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# Question & Answer
3251
What is an example of an Intrusive Igneous rock? - Granite.
3252
What is an example of an Extrusive Igneous rock? - Basalt.
3253
What type of rock is formed by the transformation of existing rock types by heat and pressure? - Metamorphic Rock.
3254
What type of rock is formed from the deposition and cementation of sediments? - Sedimentary Rock.
3255
What type of rock is formed from the cooling and solidification of magma or lava? - Igneous Rock.
3256
What is the term for the study of earthquakes and seismic waves? - Seismology.
3257
What is the process of uplift and subsidence of large parts of the Earth's crust called? - Epeirogeny.
3258
What is the term for the process of mountain building? - Orogeny.
3259
What is the dropped block between two faults, often forming a valley, called? - Graben (or Rift Valley).
3260
What is the block that remains standing after faulting, often forming a mountain, called? - Horst.
3261
What are the mountains formed due to faulting, where a block is uplifted (horst) or depressed (graben)? - Block Mountains.
3262
What are the mountains formed due to the folding of the Earth's crust caused by tectonic compression? - Fold Mountains.
3263
What is the largest intrusive igneous body found in the Earth's crust? - Batholith.
3264
What are the solidified vertical or near-vertical walls of lava within the Earth's crust called? - Dykes.
3265
What are the solidified horizontal sheets of lava within the Earth's crust called? - Sills.
3266
What is the term for a volcano that erupts at regular or semi-regular intervals? - Regularly Active Volcano.
3267
What is the name of the theory that explains the formation of the Himalayas? - Plate Tectonics (Continent-Continent Convergence).
3268
What is the zone surrounding the Pacific Ocean where the majority of the world's volcanoes and earthquakes occur? - The Pacific Ring of Fire.
3269
What are large ocean waves generated by the sudden displacement of water (usually by earthquakes or volcanic eruptions) called? - Tsunami.
3270
What does an earthquake of magnitude 5.0 on the Richter scale release, compared to a 4.0? - 32 times more energy.
3271
What part of the Earth's interior causes the S-wave shadow zone? - The Liquid Outer Core.
3272
What is the zone around the globe where seismographs do not record S-waves? - S-wave Shadow Zone.
3273
What scale is used to measure the intensity (observed effects) of an earthquake? - Modified Mercalli Intensity (MMI) Scale.
3274
What scale is used to measure the magnitude (energy released) of an earthquake? - Richter Scale.
3275
What is the instrument used to measure the intensity and duration of an earthquake? - Seismograph.