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ES 105
Midterm 1
147
Environmental Studies
Undergraduate 3
09/22/2015

Additional Environmental Studies Flashcards

 


 

Cards

Term
The radioactive fuel of earth is
Definition
U, Th, K
Term
The early Earth's atmosphere was mostly made of
Definition
CO2, water, and hydrogen sulfide.
Term
Relative to the age of the earth, the fraction of time that humans have existed is
Definition
0.04%
Term
Early heating of the earth:
1. formed the core and mantle
2. metled iron and some nickel
3. led to the formation of the magnetic field
4. occurred soon after planetary formation
5. (ALL OF THE ABOVE)
Definition
all of the above
Term
Early life on earth:
1. began in the oceans
2. dates back to at least 3.8 billion years
3. was one-celled bacteria and algae
4. thrived near sea floor plate boundaries
5. (ALL OF THE ABOVE)
Definition
5. (ALL OF THE ABOVE)
Term
Humans on Earth
1. as genus homo date back to 2.5 million years, species homo sapien 40,000 years
2. did not have a population of about 1 billion until the year 1830
3. emerged during the Ice Age
4. settled the America's during the last 15,000
5. all of the above
Definition
5. (ALL OF THE ABOVE)
Term
The current human population is
Definition
over 7 billion
Term
Earth's early atmosphere was derived from
Definition
volcanoes
Term
The core of the earth is principally composed of
Definition
iron + nickel
Term
The convecting zone of a partial melt in the mantle is termed the
Definition
aesthenosphere
Term
The oldest life forms on planet earth include (name one)
Definition
algae (2.2 b.y ago)
Term
The oldest rocks within the continents date back to ___ billion years
Definition
4 billion
Term
Island arcs result from convergence of two ocean plates? T/F
Definition
True
Term
subduction zone earthquakes range in depth from shallow at the trench to several hundred kilometers beneath the overriding plate T/F
Definition
True
Term
Ocean crust is oldest at the ocean ridges and becomes progressively younger the distance from the ridge T/F
Definition
False
Term
The longest mountain range of the earth is mostly underwater T/F
Definition
True
Term
Transform faults connect ends of offset ocean ridges
Definition
True
Term
The present site of the Ural mountains represents the demise of a long lost ocean
Definition
True
Term
A _______ plate boundary is one marked by volcanism, compressional deformation and an inclined zone of earthquakes
Definition
convergent
Term
A ________ plate boundary is one marked by volcanoism, extension and shallow earthquakes
Definition
divergent
Term
The Mediterranean is a remnant of the _____sea
Definition
Tethys Ocean
Term
Volcanic islands above subduction zones have arcuate trends because the earth is ____________
Definition
round
Term
Continents and island arcs grow in size at zones of subduction by the dual process of ________ and accretion
Definition
volcanoism
Term
the wedge of sediments accumulating off shore of a rifted continental margin is known as a
Definition
geoclines
Term
The author of the Continental drift was also shot twice in WWI set an air balloon record in 1906, wrote the book "the origin of the continents and oceans" in 1915 and later died in 1930 expedition in greenland where his remains continue to be buried in ice. He was _____
Definition
Alfred Wegner
Term
Most of the Earth's seafloor has been recycled back into the mantle T/F
Definition
True
Term
The greater the distance to an earthquake epicenter, the longer time between primary and secondary waves
Definition
True
Term
The San Andreas Fault is a boundary between the North American and Pacific plates, the latter presently moving northward toward the Aleutian Trench T/F
Definition
True
Term
The Appalachian Mountains...
1. Represent the remnants of a himalayan-type mountain chain
2. formed from there stages of island arc and continental collision
3. were rifted, the components of which occur on both sides of the atlantic ocean
4. once stretched from the baltic regions of northern Europe to west Texas
5. ALL OF THE ABOVE
Definition
5. ALL OF THE ABOVE
Term
Continental collision results in ...
1. a double thickness of continental crust
2. the formation of unusually high mountains within the interior of a continent
3. the end of subduction
4. a fault suture marked by fault-bounded slabs of serpentinite
5. ALL OF THE ABOVE
Definition
5. ALL OF THE ABOVE
Term
The Modified Mercalli Intensity (MMI) scale is used to access probable damage over the region impacted by an earthquake T/F
Definition
True
Term
The youngest ocean crust can be found at
Definition
(MOR) The youngest oceanic crust is at the bottom of the ridge which is formed by two diverging oceanic plates. When oceanic plates diverge, or move away from one another, magma fills the space they create forming a new layer of crust.
Term
The alps formed from collision of europe with
Definition
Africa
Term
Seismologists have abandoned Richter magnitudes in favor of ____ magnitudes
Definition
moment magnitudes
Term
___-waves travel the fastest and are the first to be felt during an earthquake
Definition
P waves
Term
The intense ground shaking on water-saturated ground is termed
Definition
liquefaction
Term
Heating the inner portions of earth resulted from the FISSION of the hydrogen atoms
T/F
Definition
True
Term
Planet earth had very little atmosphere at the time of its formation
T/F
Definition
True
Term
A rock sample from saturn, if brought back to earth, would be much heavier than any common earth rock
Definition
False - lighter
Term
The universe is expanding today
Definition
True
Term
Edwin Hubble confirmed what theory?
Definition
theory of expanding universe
Term
Mars has an atmosphere at 0.7% of that of earth and is mostly _____
Definition
CO2
Term
Venus has an atmosphere at 90x that of the earth and is mostly ________
Definition
CO2
Term
Galaxies have a reddish color due to the
Definition
doppler effect
Term
The origin of the universe is called
Definition
the big bang
Term
The universe was formed ___ years ago
Definition
13.7 billion
Term
Fuel of stars including our sun is
Definition
hydrogen
Term
What is the Cambrien era and when did it begin?
Definition
The beginning of life (3.8 billion years)
Term
Earth is _____ yrs old
Definition
4.6 billion
Term
Earth's moon died____ years ago
Definition
4 billion
Term
Water came from
Definition
commets
Term
Air came from
Definition
volcanoes
Term
Oldest rock is _____ y.o. from the ___ period and can be found in _______
Definition
4 billion, archean, Grand Canyon
Term
Heating of the inner portions of the earth resulted from the fusion of hydrogen atoms T/F
Definition
False - it results from radioactivity
Term
Who confirmed the expansion of the universe?
Definition
Edwin Hubble
Term
meteorites brought_____ to earth
Definition
metal
Term
The K-T extinction was
1. caused by asteroids
2. not the biggest one
3. led to the age of reptiles
4. led to the beginning of mammales
5. occurred 66 million
6. all of the above
Definition
ALL OF THE ABOVE
Term
Humans on Earth:
1. genus date back to 2.5 million years
2. homo sapien 40, 000 years
3. did not have a population about 1 billion union 1830s
4. emerged during the ice age
5. settled in the americans during the last 15,000 years
6. All of the above
Definition
All of the above
Term
Island arcs result from the convergence of two ocean plates
T/F
Definition
True
Term
Subduction zone earthquakes range in depth from shallow at the trench to several hundred kilometers beneath the overriding plate T/F
Definition
True
Term
Transform faults connect ends of offset ocean ridges
Definition
True
Term
Rifting of Gondwanaland resulted in the formation of Laurasia and Pangea : T/F
Definition
False - other way around
Term
What is a fault?
Definition
A fault is a crack in the earth's crust resulting from moving plates
Term
Rift valley
Definition
The separation of divergent plates on a continent
Term
Convergent boundary is
Definition
a boundary where two separate plates are pushing into each other
Term
A volcanic & hot mudflow is known as a (an) _____.
Definition
lahar
Term
Island arcs result from convergence of two oceanic plates T/F
Definition
True
Term
Volcanic activity of the Cascade Mountain Range of the Pacific Northwest results from continental collision T/F
Definition
False
Term
A ropey type of basalt lava is termed
Definition
pahoehoe
Term
Heating of the inner portions of the Earth result from fusion of Hydrogen atoms. T/F
Definition
False
Term
The port town of St. Pierre, on the Caribbean island of Martinique, was destroyed by nuee ardente. T/F
Definition
True
Term
Mauna Loa of Hawaii is an example of a
Definition
shield volcano
Term
Hot spot volcanoes originate from
Definition
the core/mantle boundary
Term
Large igneous intrusions are known as
Definition
batholiths
Term
mid ocean tracks such as that of hawaii and the emperor seamount chain...indicate that
Definition
indicate plate mption opposite to the direction of "younging" of the volcanic islands and seamounts. **
Term
A ___ is a thin, cross-cutting intrusion.
Definition
dike
Term
A ___ is a thin intrusion that runs parallel or concordant to layers.
Definition
sill
Term
___ texture results from slow cooling deep in the Earth.
Definition
Phaneritic
Term
___ are frozen bubbles in a volcanic rock.
Definition
vesiceles
Term
Basalts are the most fluid (least viscous) of lava flows because of their
Definition
high Temperature and low Silica content.
Term
Both the Red Sea and the Gulf of California are the recent result of rifting and seafloor spreading. T/F
Definition
True
Term
___ ___ is a type of mass wasting that involves the gradual and slow downhill movement of soil.
Definition
soil creep
Term
The widening of joints by expanding ice is known as
Definition
frost wedging
Term
The irregular surface at the toe of a slide is termed
Definition
hummocky ground.
Term
Seven indications of previous or probably landslide activity include
Definition
steep slopes, soft rocks, water, loss of vegetation, dip slope conditions, prior history, or fracturing.
Term
The ___ Cycle involves the weathering of igneous rocks into sediment, forming sedimentary rocks, which with heat and pressure become metamorphic rocks, to then be melted back into igneous rocks.
Definition
Rock
Term
Rhyolite is the least fluid (most viscous) form of lava because of its
Definition
low Temperature and high Silica content
Term
The San Andreas Fault is a boundary between the North American and Pacific plates, the latter presently moving northward toward the Aleutian trench. T/F
Definition
True
Term
The convecting zone of partial melt in the mantle is termed
Definition
the asthenosphere
Term
Soil creep causes
Definition
bent trees
Term
Rock debris at the bottom of a rock form is known as talus. T/F
Definition
True
Term
Ocean crust melts during subduction, forming andesite magma, the dominant volcanic rock of island arcs.T/F
Definition
True
Term
From high to low temp, the minerals in Bowen's Reaction Series are:
Definition
olivine, pyroxene, amphibole, and biotite
Term
The widening of joints by expanding ice is known as
Definition
Frost Wedging
Term
Mt. St. Helens is an example of
Definition
composite (strato) volcano
Term
Mass wasting that involves the downward slump of a rock unit or coherent rock material along a curved surface is
Definition
slump
Term
A blocky type of basalt lava is termed
Definition
aa
Term
Ocean crust melts during subduction, forming andesite magma, the dominant volcanic rock of island arcs.
Definition
true
Term
A ____ volcano is primarily composed of air fall and pyroclastic basaltic material.
Definition
cinder cone
Term
Japan Type of Volcano is:
Definition
Convergent in sea, has a volcanic arc and is deep-sea trench
Term
Transform faults connect ends of offset ocean ridges. T/F
Definition
True
Term
Our Solar System's "great mop-up" occurred
Definition
4.6 billion yrs ago
Term
Continental Shelf is the surface of a ___
Definition
ridge
Term
Wilson Cycle describes
Definition
Rifting of ancient lithosphere, sea floor spreading, mid plate process, plate convergence, and THE CREATION OF NEW CRUST AND THE DEEP MANTLE (change in ages of lithosphere)
Term
large igneous rocks are known as
Definition
basalts
Term
____ results from cooling deep in earth
Definition
phanoritic
Term
silica in basalt: high or low?
Definition
low silica , less viscous
Term
4 stages of rift stages
Definition
upwelling rifting subduction collision
Term
Andesitic and rhyolitic eruptions tend to be explosive because of their gas content and high viscosity. T/F
Definition
true
Term
The wedge of sediments accumulating off shore of a rifted continental margin is known as a
Definition
geocline
Term
Heating of the inner portions of the Earth result from fusion of Hydrogen atoms.
Definition
False
Term
Mauna Loa of Hawaii is an example of a
Definition
Shield Volcano
Term
Fuel of Stars =
Fuel of Planets + moons =
Definition
hydrogen
radioactive energy
Term
Volcanic explosions yield ___ texture.
Definition
pyroclastic
Term
Mass wasting is not a natural form of erosion and is generally induced by the influence of humans. T/F
Definition
False
Term
Valley widening primarily occurs by mass wasting subsequent to erosion by running water. T/F
Definition
True
Term
Magmas rise because they
Definition
have low density
Term
Universe is expanding solar system is not
Definition
True
Term
Mass movement of unconsolidated fluid mixtures of rock, dirt, sand, and water is a
Definition
flow
Term
The irregular surface at the toe of a slide is termed
Definition
hummocky ground
Term
Basalt forms from the melting of
Definition
mantle periodite
Term
Rhyolite is the least fluid (most viscous) form of lava because of its
Definition
low temperature and high silica content
Term
The fluid motion of the outer core is the cause of the Earth's magnetic field. T/F
Definition
True
Term
As early as 1911, Alfred Wegener presented ideas about seafloor spreading. T/F
Definition
True
Term
The convecting zone of partial melt in the mantle is termed
Definition
aesthenosphere
Term
The difference in magnitude between earthquakes with Richter and/or moment magnitudes 2 and 5 is
Definition
1,000
Term
Subduction zones:
have the most earthquakes
have the deepest earthquakes
have the most violent volcanoes
descend to the core-mantle boundary
all of the above
Definition
all of the above
Term
Early Heating of the Earth:
Formed the core and mantle
Melted iron and some nickel
Let to the formation of the magnetic field
Occurred soon after planetary formation
All of the above
Definition
All of the above
Term
Continental collision results in:
A double thickness of continental crust
The formation of unusually high mountains within the interior of a continent
The end of subduction
A fault suture marked by fault-bounded slabs of serpentinite
All of the above
Definition
all of the above
Term
Plinan Eruption (2 volcanoes that do them and what it looks like)
Definition
st. helenes and mt vesuvius , its a gas and pyroclastic explosion that goes high into the atmosphere
Term
a broad volcano made up sole of basalt lava flows is a ___ volcano
Definition
shield
Term
What are the phanoretic equivalent of basalt andesite and rhyolite respectively
Definition
gabbro, diorite, granite
Term
What is the pacific ring of fire?
Definition
the aleutions
Term
Nuee Ardente is the same thing as
Definition
Pyroclastic Flow (Monserrat 1996)
Term
neer ardent/pyroclastic lava does what?
Definition
glows
Term
Wilson cycle? (in 3 points)
Definition
rift submurge collision
Term
when you see the himalayasians topography map with red outline that means?
Definition
continental collision
Term
what two places can you find cinder cone volcanos
Definition
hawaii and maui
Term
a shield volcano has fluid magma flows that travel further than start volcanoes T/F
Definition
True
Term
what two plate movements have shallow earthquakes?
Definition
divergent and shallow
Term
pt. Fermin has block slumps T/F
Definition
true
Term
Hot pot volcanoes can be found in
Definition
iceland and hawaii
Term
what rocks are particular to ocean/ocean convergence?
Definition
andesite/diorite
Term
what rocks are particular to ocean/plate convergence?
Definition
basalt/gabro
Term
what rocks are particular to divergent plates?
Definition
andesite/diorite
and rhyolite/granite
Term
what are two type of subduction zones with immense volcanoes?
Definition
japan-type and andean-type
Term
Plinean - vertical blast often to very high altitudes in the atmosphere, ash fall, tuffs

Pelean - pyroclastic flows (nuée ardente), ash flow, welded tuffs
Definition
just know
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