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76 Cards in this Set
- Front
- Back
Paleoclimatology |
Study of past climates and causes of climate change |
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Proxy |
Climate estimates from natural record |
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Dendrochonology |
Tree rings |
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Palynology |
Pollen analysis |
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Causes of climate change |
Volcanic activity Meteors Sunspots Earth sun variation Greenhouse gases |
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Earths interior |
Density differences inferred from seismic waves Denser layers-wave speed increases
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Geothermal Gradient |
Temperature increases with increasing depth |
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Inner core |
Solid, high density |
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Outer core |
Liquid, molten lower density |
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Mantle |
Solid, top is plastic deforms and flows |
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Lithosphere |
Cool hard and strong |
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Aesthenosphere |
Flows horizontally and vertically, plastic layer, volcanoes and mountain building |
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Crust |
Thin, solid exterior Lowest density Oceanic and continental |
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Divergent plate boundary |
Crustal extension, rifting and sea floor spreading |
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Convergent plate boundary |
Crustal compression, subduction and suturing |
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Transform bounday |
Crustal shear |
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Vulcanism |
Crystallization of molten material above and below earths surface |
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Aspiration |
Frictional locks |
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Fault |
Fraction movement along both sides |
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Pahoehoe |
Ropey, glassy lava |
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A'a |
Rocky, jagged lava |
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Pillow lava |
Underwater lava flow |
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Shield volcanoes |
Continuous Balasitic lava flows |
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Shield volcanoes |
Continuous Balasitic lava flows |
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Cinder volcanoes |
Small cone, multiple vents |
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Shield volcanoes |
Continuous Balasitic lava flows |
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Cinder volcanoes |
Small cone, multiple vents |
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Composite cone volcano |
Classic cone type |
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Compression waves |
P-waves push pull, move quickest of waves, go though all material |
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Compression waves |
P-waves push pull, move quickest of waves, go though all material |
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Shear waves |
S-waves, slower wave, can't move through fluid, perpendicular to wave motion |
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Love waves |
Side by side, surface damage |
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Love waves |
Side by side, surface damage |
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Rayleigh wave |
Heaving motion |
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Focus |
Point at which slip initiates |
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Body waves |
Seismic waves that pass through whole earth |
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Surface waves |
Move slower than body waves, cause most destruction |
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Compressive forces |
Shorten and thicken crust |
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Folding |
Lateral compression of crust |
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Monicline |
Single slope |
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Anticline |
Symmetrical upfold |
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Syncline |
Symmetrical downfold |
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Overfold |
Asymmetrical fold |
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Normal fault |
Tensional force |
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Normal fault |
Tensional force |
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Reverse fault |
Shortening |
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Thrust fault |
Shortening |
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Strike slip fault |
Shear |
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Viscosity |
Fluids resistance to flow |
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Lava flow |
Non-explosive eruption |
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Batholiths |
Large intrusive, form mountains |
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Lacoliths |
Formed by lava flowing through sedimentary layers, small intrusive formation |
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Dike |
Formed by Lava moving vertically through ore existing rock, small, widespread |
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Minerals |
Inorganic Specific Chemical formula Crystal structure |
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Minerals |
Inorganic Specific Chemical formula Crystal structure |
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Rocks |
Assemblage of one or more minerals bound together, complex and variable |
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Minerals |
Inorganic Specific Chemical formula Crystal structure |
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Rocks |
Assemblage of one or more minerals bound together, complex and variable |
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Igneous rock |
Solidified and crystallized from molten state |
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Minerals |
Inorganic Specific Chemical formula Crystal structure |
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Rocks |
Assemblage of one or more minerals bound together, complex and variable |
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Igneous rock |
Solidified and crystallized from molten state |
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Extrusive (igneous) roxk |
Reaches surface while molten, cooks rapidly |
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Minerals |
Inorganic Specific Chemical formula Crystal structure |
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Rocks |
Assemblage of one or more minerals bound together, complex and variable |
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Igneous rock |
Solidified and crystallized from molten state |
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Extrusive (igneous) rock |
Reaches surface while molten, cools rapidly |
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Intrusive (igneous) rock |
Cools from below surface |
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Intrusive (igneous) rock |
Cools slowly from below surface |
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Sedimentary rocks |
Formed from rock fragments and minerals disintegrated by external processes |
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Detrital (clastic) sedimentary rock |
Formed from rock fragments |
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Detrital (clastic) sedimentary rock |
Formed from rock fragments |
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Chemical sedimentary rock |
Formed from dissolved minerals |
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Organic sedimentary rock |
Dead plants and animals |
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Metamorphic rock |
Formed by transformation, needs heat or pressure |
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Uniformitarianism |
Present is the key to the past |