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49 Cards in this Set
- Front
- Back
asthenosphere
|
zone of mantle beneath the lithosphere that consists of slowly
flowing solid rock (72) |
|
continental crust
|
material that makes up landmasses (72)
|
|
continental drift
|
hypothesis stating that the continents once formed a single
landmass, broke up, and drifted to their present locations (67) Alfered Wegener-1912 |
|
convection
|
transfer of heat through the movement of heated material (74)
|
|
convection current
|
movement in a fluid caused by uneven heating (74) jeat rises cool sinks
|
|
convergent boundary
|
border formed by the collision of two lithospheric
plates (73) |
|
divergent boundary
|
boundary formed by two lithospheric plates that are
moving apart (73) |
|
island arc
|
chain of volcanic islands formed along an ocean trench (74)
|
|
lithosphere
|
thin outer shell of the Earth consisting of the crust and the rigid
upper mantle (72) |
|
Mid-Atlantic Ridge
|
undersea mountain range with a steep, narrow valley
along its center (68) |
|
asthenosphere
|
zone of mantle beneath the lithosphere that consists of slowly
flowing solid rock (72) |
|
continental crust
|
material that makes up landmasses (72)
|
|
continental drift
|
hypothesis stating that the continents once formed a single
landmass, broke up, and drifted to their present locations (67) |
|
convection
|
transfer of heat through the movement of heated material (74)
|
|
convection current
|
movement in a fluid caused by uneven heating (74)
|
|
asthenosphere
|
zone of mantle beneath the lithosphere that consists of slowly
flowing solid rock (72) |
|
continental crust
|
material that makes up landmasses (72)
|
|
continental drift
|
hypothesis stating that the continents once formed a single
landmass, broke up, and drifted to their present locations (67) |
|
convection
|
transfer of heat through the movement of heated material (74)
|
|
convection current
|
movement in a fluid caused by uneven heating (74)
|
|
convergent boundary
|
border formed by the collision of two lithospheric
plates (73) |
|
divergent boundary
|
boundary formed by two lithospheric plates that are
moving apart (73) |
|
island arc
|
chain of volcanic islands formed along an ocean trench (74)
|
|
lithosphere
|
thin outer shell of the Earth consisting of the crust and the rigid
upper mantle (72) |
|
Mid-Atlantic Ridge
|
undersea mountain range with a steep, narrow valley
along its center (68) |
|
mid-ocean ridges
|
system of undersea mountain ranges that wind around the
Earth (68) |
|
ocean trench
|
deep valley in the ocean floor that forms along a subduction
zone (73) |
|
oceanic crust
|
material that makes up the ocean floor (72)
|
|
Pangaea
|
single landmass thought to have been the origin of all continents (67)
|
|
Panthalassa
|
giant ocean surrounding Pangaea (67)
|
|
plate tectonics
|
heory that the lithosphere is made up of plates that float on the
asthenosphere and that the plates possibly are moved by convection currents (72) |
|
rift valley steep
|
steep, narrow valley formed as lithospheric plates separate (73)
|
|
seafloor spreading
|
movement of the ocean floor away from either side of a
mid-ocean ridge (70) |
|
subduction zone
|
region where one lithospheric plate moves under
another (73) |
|
terrane
|
piece of land with a geologic history distinct from that of the
surrounding land (76) |
|
theory of microplate
|
heory that continents are a patchwork of pieces
of land that have individual geologic histories (76) |
|
transform boundary
|
boundary formed where two lithospheric plates slide past
each other (74) |
|
mid-ocean ridges
|
system of undersea mountain ranges that wind around the
Earth (68) |
|
ocean trench
|
deep valley in the ocean floor that forms along a subduction
zone (73) |
|
oceanic crust
|
material that makes up the ocean floor (72)
|
|
Pangaea
|
single landmass thought to have been the origin of all continents (67)
|
|
Panthalassa
|
giant ocean surrounding Pangaea (67)
|
|
plate tectonics
|
heory that the lithosphere is made up of plates that float on the
asthenosphere and that the plates possibly are moved by convection currents (72) |
|
rift valley steep
|
steep, narrow valley formed as lithospheric plates separate (73)
|
|
seafloor spreading
|
movement of the ocean floor away from either side of a
mid-ocean ridge (70) |
|
subduction zone
|
region where one lithospheric plate moves under
another (73) |
|
terrane
|
piece of land with a geologic history distinct from that of the
surrounding land (76) |
|
theory of microplate terranes
|
theory of microplate terranes theory that continents are a patchwork of pieces
of land that have individual geologic histories (76) |
|
transform boundary
|
boundary formed where two lithospheric plates slide past
each other (74 |