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69 Cards in this Set
- Front
- Back
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How old is the Earth? |
4.6 billion years |
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Is 1 million years old or young according to geologic time? |
Young |
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Which type of crust is geologically young? |
Oceanic |
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Which era are we in? |
Cenozoic |
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Which period are we in? |
Quaternary |
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Which epoch are we in? |
Holocene |
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In what epoch did most ice ages occur? |
Pleistocene |
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What is the unifying theory of geology? |
Plate tectonics 2 Reasons why? Volcanic activity and Continent Location |
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The ____ is broken into rigid plates which is moving on underlying ____ |
Asthenosphere; Lithosphere |
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TWOHYPOTHESIS TO MAKE PLATE TECTONICS |
Continentaldrift (Wegner), Seafloor Spreading (Hess) |
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EARLIESTINDICATOR OF CONTINENTAL DRIFT: |
Continentsfit together like puzzle pieces |
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WHATTYPE OF PLATE BOUNDARY IS AT A MID OCEAN RIDGE? |
Divergentplate boundary |
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WHATPRESSURE AND TEMPERATURE WOULD YOU FIND AT A MID OCEAN RIDGE? |
Lowpressure, high temperature |
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OCEAN– OCEAN CONVERGENCE; WHICH LAYER WOULD SLIDE UNDER AND WHY? |
The ocean crust, because it is older and more dense |
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OCEAN– CONTINENT CONVERGENCE; WHICH LAYER WOULD SLIDE UNDER AND WHY? |
The ocean, because it is more dense. |
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WHICH BOUNDARIES WILL HAVE EARTHQUAKES? |
All of them |
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WHICHBOUNDARIES WILL HAVE VOLCANOES? |
Convergent boundaries |
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WILLTHE VOLCANOES BE EXPLOSIVE? WHY? |
Yes, because if high viscosity and silicacontent. |
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WHAT ROCK IS THE OCEAN CRUST MADE UP OF? |
Basalta |
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IS BASALT INTRUSIVE OR EXTRUSIVE? |
Extrusivel |
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WHAT IS CONTINENTAL CRUST MADE UP OF? |
o Granite |
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ISGRANITE INTRUSIVE OR EXTRUSIVE? |
Intrusive |
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WHICH CRUST IS THICKER; OCEAN OR CONTINENTAL?
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Continental crust
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WHATARE THE MOST COMMON MATERIALS IN EARTH’S CRUST?
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Oxygen, Silica, Aluminum, and Iron
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3 TYPES OF ROCK:
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Sedimentary, Igneous, and Metamorphic,
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HOWIS SEDIMENTARY ROCK FORMED?
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Compaction, Cementation, and Crystallization
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HOW DO SEDIMENTS FORM?
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Erosiona
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HOWIS IGNEOUS ROCK FORMED
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Magma cooling
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HOWIS METAMORPHIC ROCK FORMED?
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Heat and pressure
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WHATCONTRIBUTES TO CHEMICAL WEATHERING?
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Acidy
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What contributes to natural weathering? |
Water |
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WHYDOES QUARTZ RESIST WEATHERING?
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Hardness, no cleavage, more stable
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WHAT IS A GOOD ROCK TYPE FOR CARBONDATING?
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Sedimentary
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THE PRINCIPAL OFUNIFORMITARIANISM EXPLAINS THAT
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The present is the key to the past.
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m WHATPRINCIPLES DO WE USE TO DETERMINE THE RELATIVE DATING OF ROCKS? |
o Original horizontality, Superposition, andCrosscutting |
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Whatis the depositional environment of Unit K? |
Stream or Riverbedngdina |
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m WHATTYPE OF ROCK IS UNIT K? |
o Conglomeratey:a |
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CONTACT METAMORPHISMWOULD HAVE WHICH 2 ZONES AROUND IT? |
The baked zone and the chill zone.tyle=>a |
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WHATROCK MAKES THE BEST AQUIFER? |
Sandstonemily |
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ISTHIS AREA LIKELY TO FORM SINKHOLES? |
Nofont |
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WHATIS THE POSSIBLE AGE RANGE FOR THE LIMESTONE |
o35 – 60 Million Years
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WHATTYPE OF WEATHERING WOULD FORM A KARST TERRAIN |
o Solution Weathering |
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2REASONS WHY URBANIZATION OFTEN ENHANCES FLOODING |
Reduces the amount of water that can infiltratein, which increases the amount stuck on the surface |
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4 REASONSWHY PEOPLE LIVE IN FLOOD PLAINS |
o Fertile soil, cheap land, water source, andtransportation |
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m WHATIS VISCOSITY? |
o How much a liquid resists flowan |
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WHICHHAZARDS ARE IN CLARKSVILLE? |
o Creep, sinkholes, floods, groundwatercontaminationore' |
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ATLEAST 2 GEOLOGIC HAZARDS THAT CONCERN VISCOSITY |
Volcanoes and Mass Wasting |
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WHATDO WE WANT THE VISCOSITY TO BE TO REDUCE THE DESTRUCTION OF THESE EVENTS? |
oLow Viscosity For Volcanoes, High For MassWastingnore'<> |
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WHATIS THE DRIVING FACTOR FOR ALL MASS WASTING EVENTS? |
Gravity |
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WHYDID EARTH TEMPERATURE CHANGE DURING THE PLIESTOCENE, CAUSING ICE AGES? |
The axis tilt, and the orbit of the earth aroundthe sun6a
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m WHYIS EARTH’S CLIMATE CURRENTLY CHANGING |
o Carbon dioxide |
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m HOWDOES CARBON DIOXIDE ENTER THE ATMOSPHERE NATURALLY? |
o Volcanoes |
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WHAT RE 2 REASONS CLIMATE HAS CHANGED IN THE PAST
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o Continents moving and ocean currents shifting
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WHATMAJOR CHANGES ARE OCCURING WITH CLIMATE CHANGE RIGHT NOW?
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o Sea level is rising, temperature is rising, andmore precipitation
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m WHATARE MOST GLACIERS AND ICE SHEETS DOING?
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o Meltingfa
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m WHATWOULD CONTRIBUTE THE MOST THE SEA LEVEL RISE IF ALL ICE SHEETS AND GLACIERSWERE TO MELT?
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o East side of Antarctica
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m LIST3 IMPACTS OF CLIMATE CHANGE
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o crop failure, disease, and human displacementist
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GEOLOGY IS THE SCIENTIFIC STUDY OF ___
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Rocks |
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m EARTH’S____ HAS REVERSED IN THE GEOLOGIC PAST
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Polarityor magnetic fieldior
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m WHATARE THE 4 EARTH SYSTEMS?
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o Hydrosphere, biosphere, geosphere, andatmospheregnor
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m WHATARE 4 REASONS WHY GEOLOGY IS IMPORTANT TO OUR EVERYDAY LIVES?]
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o Predict geologic hazards, getting resources,general knowledge, and protecting the environment
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m MATHEMATICALLYSPEAKING, WHAT IS VELOCITY?
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o Distance over time
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m 4GEOLOGIC FEATURES THAT HAVE TO DO WITH VELOCITY
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o Streams, creep, volcanoes, and earthquakes
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m WHATIS THE SIMILARITY BETWEEN STREAMS AND GLACIERS AND THEIR VELOCITY?
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o Faster on the outside of curves
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m WHAT2 THINGS ARE ASSOCIATED WITH AN INDEX?
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o Index minerals and index fossils style
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m WHATIS SIMILAR BETWEEN INDEX MINERALS AND FOSSILS?
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Narrowing down information, giving a definiterange of something (time, or pressure and temp)
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WHAT 4 THINGS ARE REQUIRED IN ORDER TO BECOME A MINERAL
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o Naturally occuring, inorganic, crystallinestructure, and a specific chemical composition.
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m ISOTOPESHAVE THE SAME NUMBER OF WHAT?
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Protons |
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m ISOTOPESHAVE A DIFFERENT NUMBER OF WHAT?3a
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Neutrons |
