問題一覧
1
Boundary where plates move towards each other
Convergent boundary
2
Responsible for creating mountain belts and ranges
Convergent boundary
3
Responsible for expanding ocean basins and rifting
Divergent boundary
4
Boundary where plates slide against each other
Transform boundary
5
Used in a theory regarding the Earth's timeline
Seafloor spreading
6
is a massive piece of thick and hardened stratified rock that floats above the liquid earth it sits upon.
Plate
7
are responsible for their formation.
Plate tectonics
8
It was then widely accepted by the scientific community when the continental drift theory was supported by the evidence of seafloo spreading in the 1950s to 1960s.
Plate tectonics
9
are plates that meet at a certain point and collide with one another.
Convergent plates
10
True or false: Trenches are the most common points of divergent plates.
True
11
are plates that dirft away from a common point.
Divergent plates
12
are plates that slide past one another, neither creating nor destroying one another.
Transform plate
13
True or false: The San Andreas Fault is an example of a dextral fault.
True
14
The motion can be observed at the left (called a ___) or at the right (called a ___).
Sinistral fault, dextral fault
15
fracture that stretches from the boundary
Normal fault
16
Fracture meeting at certain point
Reverse fault
17
THIS IS the crust that HOIDS the continents. It is less dense than the other type.
Continental drift
18
Happen below the ocean
Mid-oceanic drift / ridge
19
Fracture or crack that is being release wides the ocean deep sea vent
Slip
20
Gravitational force of fracture of one's plate
Joint
21
Bending of the rocks or deformation
Fold
22
The Theory states that earth's CRUST IS DIVIDED into several. Plates that Gildes over the mantie, acting as HARD SHell.
Plate tectonics
23
It IS DIVIDED INTO TWO DISTINCT SUBSPHERES : LITHOSPHERE & asthenosphere
Continental drift
24
How did the continent form
Pangea ( 7 continents)
25
Another continent that is being experiment
Ice island
26
__ creates tremendous stress near plate boundaries; this stress deforms rocks
Tectonic movement
27
A ___ is any feature produced by rock deformation
geologic structure
28
When deformation is brittle, rocks break, it forming ___
joints or faults.
29
When deformation is ductile, rocks bend without breaking, it forming __
Folds
30
one arching downward is a ___ .
syncline
31
A fold arching upward is an __
anticline
32
The sides of a fold are called the __ .
limbs
33
anticlines do not necessarily form ___ .
topographic ridges
34
__ are most commonly caused by compressive stress.
Anticlines
35
are created by combinations of tectonic and surface processes
Landforms
36
synclines do not form __
valleys
37
Synclines are like __-they are U-shaped folds in which strata dip towards the fold axis and the strata become younger as one moves towards the fold axis. A
basins
38
A __ resembles an inverted cereal bowl
dome
39
A circular or elliptical anticlinal structure is called a __
dome
40
A similarly shaped syncline is called a __ .
basin
41
A __ is an open, step-like structure in which the layers are all inclined in the same direction on either side of the fold axis.
monocline
42
__ (perfectly shaped) are rare in nature.
Cylindrical anticlines
43
is a fracture along which rock on one side moved relative to rock on the other side.
Fault
44
is the distance that rocks on opposite sides of fault have moved
Slip
45
form most often due to compression-forces that push rock together, breaking the rock and creating a fault.
Reverse fault
46
is a special type of reverse fault that is nearly horizontal.
Thrust fault
47
are typically nearly vertical and move rock horizontally past each other on either side of the fault.
Strike - slip faults
48
__ arise due to shear stress- forces moving past one another
Strike-slip faults
49
When the side across the fault moves to the right, it is called a __. If the side across the fault moves to the left, it is a __ .
right-lateral strike-slip fault, left-lateral strike-slip fault
50
is a fracture in which rocks on either side of the fracture have not moved
Joint
51
__ are important in engineering, mining, and quarrying because they are planes of weakness in otherwise strong rock.
Joints and faults
52
As they mapped the sea floor, oceanographers discovered the largest mountain chain on Earth, now called the ___
Mid- Oceanic Ridge system.
53
Which are the oldest rocks?
at the far left and far right of the Mid-Atlantic Ridge
54
Which are the youngest rocks?
in the middle of Mid-Atlantic Ridge
55
proposed an explanation for these odd magnetic patterns on the sea floor
Frederick Vine. Drummond Matthews, and Lawrence Morley
56
to mapping the topography of the sea floor, oceanographers towed devices called
magnetometers
57
oceanic crust is composed mostly of __, an igneous rock rich in iron.
basalt
58
refers to the upward and downward flow of fluid material in response to heating and cooling
Convection
59
is the upper portion of a convecting cell and thus glides over the asthenosphere as a result of the convection
Tectonic plate
60
contains the brittle materials that make it ngid It is composed of the crust and the upper mantle, whose molten peridotite composition allows it to resist flow.
Lithosphere
61
is the layer that contains all the liquid and semi-liquid rocks, which can be found in the mantie
Asthenosphere
62
This is the region on the lithosphere where tectonic plates are moving relative to each other
Plate boundary
63
This is the plate boundary where seafloor expansion occurs.
Divergent boundary
64
This is the plate boundary where plates collapse and volcanic arcs are made.
Convergent boundary
65
Kapag active yung subduction tinatawag itong
Subduction zone
66
the denser oceanic plate subducts to the less dense oceanic plate, creating island arcs
Ocean-ocean plate convergence
67
the oceanic plate automatically subducts, creating continental volcanic arcs.
Ocean-continent convergence
68
the less dense continental plate rises above, the denser continental plate, creating collision mountain beita in the process.
Continent - continent convergence
69
It is any factor that drives tectonic plates to move.
Plate movement
70
The thermodynamic heating of the liquid rocks in the mantle provides movement to the plates.
Mantle convection
71
This is the tensional force exerted by cold, dense oceanic plates as it subducts into the mantle due to its weight. This works in conjunction with the mantle convection.
Slab pull
72
Also known as gravitational sliding, it is a proposed driving force that occurs at mid-ocean ridges as the result of the lithosphere sliding down the asthenosphere
Ridge push
73
This is a theory proposed by John Tuzo Wilson, who tried to correlate plate movement with the Earth's timeline.
The wilson cycle
74
Exogenic and endogenic processes weather down mountains, which allows the crust to restart the entire cycle.
Orogenesis
75
As continental plates proceed to collide, crustal roots are formed and build mountains
Continental collision
76
Fragments carried by the subducting plate accretes and welds materials to the continent
Subduction welding
77
Oceanic crust subducts beneath a continental crust, creating a volcanic mountain belt at at the active margin
Volcanic mountain belt formation
78
As the spreading continues, passive margin cooling occurs and sediments accumulate
Passive margin cooling and sedimentation
79
New ocean basin and new oceanic crust are created.
Ocean basin and crust development
80
Continents split due to rifting.
Continent rifting