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26 Cards in this Set
- Front
- Back
The life expectancy for the average American is about __ hours. The approximate number of hours fromwhen we met to when we will part company will be __ hours. Think like a geologist and think about time.
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700,000 hours; 2,600 hours; |
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Copernicus (mid 15th cent, Poland) Heliocentric -> Suddenly the universe is a bigger place.
Gallileo (1564-1642) Technology promotes scientific progress. Inertia: “Bodies in motion tend to stay in motion.” Convinced the earth was spinning and moving Newton: Principia: the world operates by natural laws that make thingspredictable. He sat and wrote a three volume book that changed the world. |
ok |
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When measuring patterns, the rock’smagnetic-alignment signature is enhancedby the Earth's modern magnetic field whenthe two coincide. The “trick” is that thepolarity patterns on both sides of thedivergent zones ARE THE ___.
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SAME |
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Young and hot is the ___ boundaries |
Divergent |
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Melted rocks are __. Altered rocks through heat & pressure usually in a subduction zone are ___. Rocks cut to pieces are ___. |
Igneous; Metamorphic; Sedimentary; |
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Uniformitarianism – James Hutton: “Thepresent is the key to the past.” Corollary: “The past may be the key to thefuture.
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ok |
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Storms are different in North and South. Northern storms come in ___. Southern storms come in ___. |
winter; summer; |
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What are unintended consequences ofdamming up rivers and streams?
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Beach erosion |
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you areflying through space riding on a ball of mostly molten liquid
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k |
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There are volcanoes in CA. __ was the last to erupt. |
Lassen's Peak; |
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Basalitic lava flows easily because it has low viscosity. This is because it has low level of silica. |
k |
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Mt Saint Helen's is an andesitic volcano |
k |
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LA Pulls water in from a lot of places and has created virtualwatershed. __% of water is imported.
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88% |
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East African rift is a ___ margin. Arabian penninsula is slamming or ___ into Iran. Africa is squeezing into Eurasia. Dead Sea in Jordan & Israel has ___ fault. India ___ into Eurasia forming Himalayas. |
Divergent; Subducting; Transform; Collides; |
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Note blind faults/Buried reverse faults. |
k |
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Bend in SAF creating ___ that is being distributedacross the TR areas. Relatively recent (geologically).
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compression; |
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Sierra Nevada. The __ Side is the Steep Side and is Fault BoundedThe ___ side is gently sloping to the top
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East; west; |
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Sierra Nevada is coupled with Death Valley. Mesozoic subduction. Recycling came out of ground from Andesitic volcanoes from back then. Asymmetric. Modern analog is Andes in Chile. |
k |
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Rock dropping into the emplaced granitic composition magma. Breaks rule. Underlying rock is liquid. Massive volcanic rock coming up from below & shows on modern rocks. |
Roof pendants |
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Sierra Nevada didn't happen at once. Over time.
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k |
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___ are rocks carried by glaciers & left behind. |
Glacial erratic; |
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___ is a tub full of sediments. Valley is forarc basin. SAF closed basin off. |
Great Valley; |
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Marine environment dominated 15,000 mya all ocean water sediments go on it & SAF brought mountains & sealed off basin. Fresh water resulted. Limit to salt water. |
k |
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High silica plug in middle of nowhere. These volcanic rocks obviously did not read the book because they aren't supposed to be here. |
Sutter Buttes |
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Enclosed basin creates challenges. Dam all rivers doesn't flush so leaves behind salt so time ticking to grow stuff. |
k |
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All of that oceanic-rock recycling means that the oldest rocks are found on the ___. oceanic rocks areall younger than 200 million years old
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continents |