science Flashcards

(60 cards)

1
Q

types of evidence of plate movement

A
  1. Fit of the continents
  2. Fossils
  3. Seafloor Spreading
  4. Ocean Drilling
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2
Q

type of fossil that is known to have been a type
of reptile, similar to the modern crocodile

A

Mesosaurus

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3
Q

type of fossil that was as large as a
modern wolf. Its fossils are found only
in South Africa and South America.

A

Cynognathus

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4
Q

type of fossil which translates to
“shovel reptile,”

A

Lystrosaurus

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5
Q

made up of sediment
that was carried or deposited
by a glacier and later
cemented to form rock.

A

Tillites

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6
Q

is an organic compound
such as remains of dead
plants and animals.

A

Coal

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7
Q

This is the reason why
Atlantic ocean becomes wider
while the pacific ocean is
getting smaller

A

Seafloor Spreading

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8
Q

was younger at the
Mid-Atlantic Ridge but progressively
older in either direction.

A

Ocean floor

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9
Q

GPS

A

Global
Positioning
System

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10
Q

is a branch of geophysics concerned with the magnetism
in rocks that was induced by the earth’s magnetic field

A

Paleomagnetism

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11
Q

is naturally occurring iron-rich mineral that is influenced
by magnetic field.

A

Magnetite

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12
Q

happens when the North Pole is transformed into the South Pole, and
the South Pole becomes the North Pole

A

magnetic reversal

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13
Q

consists of mostly iron, nickel, and sulfur

A

core

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14
Q

consists mostly of ultramafic silicates

A

mantle

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15
Q

consists mostly of granitic and mafic silicates rocks

A

crust

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16
Q

The uppermost solid part of the mantle and the
entire crust constitute the

A

LITHOSPHERE.

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17
Q

is the main source of
magma

A

ASTHENOSPHERE

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18
Q

The portion of the mantle which is just below the
lithosphere and asthenosphere, but above the
core is called as

A

MESOSPHERE.

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19
Q

is sometimes used to refer the core
of the earth or sometimes the whole interior.

A

BARYSPHERE

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20
Q

A sudden change in seismic velocities across a boundary

A

Seismic Discontinuity

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21
Q

The discontinuity between the hydrosphere and
crust is termed as the

A

CONRAD DISCONTINUITY.

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22
Q

is considered
to be the border between the
upper continental crust and the lower one.

A

The Conrad discontinuity

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23
Q

The Conrad discontinuity named after the seismologist?

A

Victor Conrad

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24
Q

The discontinuity between the crust and mantle is
called as the

A

Moho discontinuity.

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25
the Moho discontinuity was named after the pioneering Croatian seismologist
Andrija Mohorovičič
26
The discontinuity between the upper mantle and the lower mantle is known as
Repetti Discontinuity .
27
The core is separated from the mantle by
Gutenberg’s Discontinuity .
28
The discontinuity between the upper core and the lower core is called as
Lehmann Discontinuity
29
Shaking of ground due to release of pressure in the Earth’s crust
EARTHQUAKE
30
detects and measures seismic waves.
Seismograph
31
is a paper record of seismic waves.
Seismogram
32
Refers to the quantitative measure of the amount of energy released.
MAGNITUDE
33
Refers to the strength of the ground shaking during an earthquake.
INTENSITY
34
point on the surface of the earth directly above the focus.
Epicenter
35
point inside the earth where earthquake started.
Focus
36
process of magma escapes from Earth’s interior
Volcanism
37
is also generated when two oceanic plates collide
SUBDUCTION ZONE
38
process of mountain building.
Orogeny
39
The Process in which the segment of a rock was displaced along the fault line.
FAULTING
40
A process where original surfaces on Earth’s crust are bent or curved as a result of permanent deformation.
FOLDING
41
are fractures in Earth's crust where rocks on either side of the crack have slid past each other.
FAULTS
42
The rock above the fault zone is called the
HANGING WALL
43
The rock below the fault zone is called the
FOOTWALL.
44
rock above the fault surface is forced up and over the rock below
REVERSE FAULT
45
Rock above the fault moves downward in relation to the rock below the fault surface
Normal fault
46
Rocks on either side of the fault move past each other without vertical movement.
Strike-slip fault
47
are the smallest section of Lithosphere
Tectonic plates
48
are the edges of plate tectonics that separates each tectonics.
Plate boundaries
49
refers to the movement of the Earth’s lithospheric plates
Tectonic shift
50
vibration generated by an earthquake, explosion
Seismic wave
51
The four main types of seismic waves are
P waves, S waves, Love waves, and Rayleigh waves.
52
Each lithospheric plate is composed of a layer of
OCEANIC CRUST or CONTINENTAL CRUST
53
continental plates
1. pacific plate 2.north american plate 3. eurasian plate 4.african plate 5.antartic plate 6.imdo-austrialia plate 7.sout american plate
54
is the study of the Earth, the materials of which it is made, the structure othose materials, and the processes acting upon them.
Geology
55
is a theory about how Earth's lithosphere is divided into a series of rigid plates
Plate tectonics
56
A thin part of Earth's crust that underlies the ocean basins.
The oceanic crust
57
A thick part of Earth's crust that forms the large landmasses.
continental crus
58
is a liquid because the temperatures there are adequate to melt the iron-nickel alloy.
OUTER CORE
59
core that is a solid
INNER CORE
60
is the time interval between the arrival of P wave and the arrival time of the S wave.
LAG TIME