Term
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Definition
the amount of water required to cover an acre of land to a depth of 1 foot
(325,851 gallons) |
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Term
Alquist-Priolo Earthquake Faulting Zone Act |
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Definition
1972- CA law which prohibits construction within 50 feet of an active fault
Note: Precedes 1994 Special Studies Zone Act |
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Definition
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Term
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Definition
an upward-buckling fold
(insert pic??) |
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Term
appropriation rights
(H20) |
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Definition
the system of water law whereby
water is allocated in the order of
1st historic use |
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Definition
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Term
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Definition
condition in which groundwater
is held under high pressure |
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Term
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Definition
the decrease in the amplitude and energy
of seismic waves
with distance from the epicenter |
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Term
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Definition
the layer of soil where weathering products
tend to accumulate |
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Definition
a broad area where alluvial fans overlap along the edge of a mountain range |
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Term
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Definition
the lowest point in a stream system |
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Term
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Definition
the complex of older rocks (usually igneous and/or metamorphic)
which are overlain by younger rocks and sediments in an area
(Synonym: crystalline basement)
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Term
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Definition
the oldest identifiable rocks in any region
May be of oceanic or continental origin |
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Term
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Definition
a yellow-to-brown mineral
a source of rare earth elements (REEs)
Ce(CO3)F
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Term
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Definition
Dark clay & silt
from the San Francisco Bay Estuary
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Term
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Definition
a fault that does not offset materials
at the surface |
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Term
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Definition
foliated metamorphic rock
containing diagnostic materials that form under these conditions:
high temp/low pressure
occurs in subduction zones |
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Term
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Definition
Spanish for 'tar'
La Brea tar pits are Pleistocene
-millions of plant & mammal specimens! |
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Term
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Definition
Earthquake wave that travels through the earth's interior |
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Term
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Definition
a bronze-yellow mineral that is a souce of rare earth elements
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Term
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Definition
a bowl-shaped depression formed by the collapse of a volcanic cone following a major summit eruption |
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Term
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Definition
a mineral or rock containing C03 |
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Term
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Definition
a fine-grained sedimentary rock composed of silica, usually the skeletons of radiolaria |
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Term
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Definition
unusual plutonic rock composed mainly of carbonate minerals |
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Term
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Definition
a green silicate mineral with sheet structure
formed during low-grade metamorphism |
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Term
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Definition
mineral with chromium, iron, and oxygen
insert formula (empirical, chemical?) |
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Term
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Definition
rock texture in which fragments are held together by a cementing mineral |
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Term
composite cone/stratovolcano |
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Definition
| a steep volcanic cone built by both lava flows and pyroclastic eruptions |
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Term
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Definition
| taking place during an earthquake |
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Term
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Definition
| large box mounted on rockers used to separate gold ore from sediment |
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Term
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Definition
the very slow, generally continuoius downslope movement of materials (soils, debris)
-gravity driven process |
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Term
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Definition
the imaginary line running along the highest elevation of a mountain range
ex. "The Great Divide"
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