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105 Cards in this Set
- Front
- Back
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Core-mantle boundary |
Where density discontinuity happens |
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Moho |
Boundary bet crust and upper mantle |
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4 radioactive isotopes |
# of radioisotopes that heats the planet |
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2 uranium Thorium K-40 |
4 radioactive isotopes |
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Zircon Grain |
Crystal from Acasta Gneiss, Slave Province, NW territories Canada; 4.03 B years |
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acasta gneiss |
One kf the oldest dated rocks on earth |
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Evolution of N Disappearance of H and Ch4 |
Changes from stage 1 to stage 2 of evolution of earth's atmostphere from early hadean |
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Rise in Oxygen |
Important change from stage 2-3 of early earth's atmosphere from early hadean |
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Crust |
Silicate material composition |
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Crust |
Silicate material composition |
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Mantle |
Silicate material but with iron and magnesium |
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Core |
Larger than mars; iron and nickel but mostly iron |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Gutenberg discontinuity |
Core and mantle boundary |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Gutenberg discontinuity |
Core and mantle boundary |
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Compositional layering |
Type of layering that has crust mantle core |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Gutenberg discontinuity |
Core and mantle boundary |
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Compositional layering |
Type of layering that has crust mantle core |
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Mechanical layering |
Type of layering that is 5 speheres |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Gutenberg discontinuity |
Core and mantle boundary |
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Compositional layering |
Type of layering that has crust mantle core |
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Mechanical layering |
Type of layering that is 5 speheres |
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Asthenosphere |
Plastic layer; below lithosphere |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Gutenberg discontinuity |
Core and mantle boundary |
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Compositional layering |
Type of layering that has crust mantle core |
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Mechanical layering |
Type of layering that is 5 speheres |
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Asthenosphere |
Plastic layer; below lithosphere |
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Lithosphere |
Uppermost sphere |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Gutenberg discontinuity |
Core and mantle boundary |
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Compositional layering |
Type of layering that has crust mantle core |
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Mechanical layering |
Type of layering that is 5 speheres |
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Asthenosphere |
Plastic layer; below lithosphere |
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Lithosphere |
Uppermost sphere |
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Mesosphere |
Between asthenosphere and outer core |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Gutenberg discontinuity |
Core and mantle boundary |
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Compositional layering |
Type of layering that has crust mantle core |
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Mechanical layering |
Type of layering that is 5 speheres |
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Asthenosphere |
Plastic layer; below lithosphere |
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Lithosphere |
Uppermost sphere |
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Mesosphere |
Between asthenosphere and outer core |
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Outer core |
Liquid responsible for earth's magnetic field |
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Mohorovicic discontinuity |
Boundary bet crust and mantle |
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Gutenberg discontinuity |
Core and mantle boundary |
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Compositional layering |
Type of layering that has crust mantle core |
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Mechanical layering |
Type of layering that is 5 speheres |
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Asthenosphere |
Plastic layer; below lithosphere |
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Lithosphere |
Uppermost sphere |
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Mesosphere |
Between asthenosphere and outer core |
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Outer core |
Liquid responsible for earth's magnetic field |
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Inner core |
Solid core |
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Deep oceant trenches Huge mountain belts Volcanic eruption |
Effects of convergent boundary |
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Subduction zones (benioff zone) |
Shallow intermediate deep earthquakes |
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Hot spots |
Concentration of heat in the mantle capable of producing magma |
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Global Positioning Movement |
Measuring movements is 1-10 cm per year |
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Plate |
One of the numerous rigid sections of lithosphere that moves as a unit over the material of the asthenosphere |
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Plate |
One of the numerous rigid sections of lithosphere that moves as a unit over the material of the asthenosphere |
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Tectonics |
Refers to the deformation of Earth's crust and results in the formatoon of structural features |
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Continental drift |
All continets once existed as a supercontinent; pangea |
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Continental drift |
All continets once existed as a supercontinent; pangea |
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Sea floor spreading |
New oceaning crust is produced along mid-oceanic ridged and are sites of spreading |
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Continental drift |
All continets once existed as a supercontinent; pangea |
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Sea floor spreading |
New oceaning crust is produced along mid-oceanic ridged and are sites of spreading |
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Harry Hess |
Proposed sea floor spreading |
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Continental drift |
All continets once existed as a supercontinent; pangea |
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Sea floor spreading |
New oceaning crust is produced along mid-oceanic ridged and are sites of spreading |
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Harry Hess |
Proposed sea floor spreading |
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Fred Vine and Drummond matthews |
Proved sea floor spreading |
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Continental drift |
All continets once existed as a supercontinent; pangea |
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Sea floor spreading |
New oceaning crust is produced along mid-oceanic ridged and are sites of spreading |
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Harry Hess |
Proposed sea floor spreading |
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Fred Vine and Drummond matthews |
Proved sea floor spreading |
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Alfred Wegener in 1915 |
Proposed continental drift |
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Fit of continents |
One of the evidences of continental drift; overlaps and margins due to erosion and deposition |
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Fossils |
One of the evidences of continental drift; mesosaurus; snaggle toothed reptile |
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Fit of continents |
One of the evidences of continental drift; overlaps and margins due to erosion and deposition |
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Fossils |
One of the evidences of continental drift; mesosaurus; snaggle toothed reptile |
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Rock type |
One of the evidences of continental drift; of comparable age and composition |
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Fit of continents |
One of the evidences of continental drift; overlaps and margins due to erosion and deposition |
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Fossils |
One of the evidences of continental drift; mesosaurus; snaggle toothed reptile |
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Rock type |
One of the evidences of continental drift; of comparable age and composition |
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Paleoclimate |
One of the evidences of continental drift; ice sheets recedrd and left behind traces in rocks of its existence |
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Global oceanic ridge system |
Discovery under sea floor spreadingg |
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Global oceanic ridge system |
Discovery under sea floor spreadingg |
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Treches |
Where earthquakes occur under the sea floor spreading theory |
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Global oceanic ridge system |
Discovery under sea floor spreadingg |
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Treches |
Where earthquakes occur under the sea floor spreading theory |
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Essay in geopoetry |
Paper of harry hess |
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Geomagnetic reversals |
Reverse polarity and normal polarity |
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Geomagnetic reversals |
Reverse polarity and normal polarity |
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Lavas and sedimentary rocks of the ocean floor |
Evidences of geomagnetic reversals |
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Geomagnetic reversals |
Reverse polarity and normal polarity |
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Lavas and sedimentary rocks of the ocean floor |
Evidences of geomagnetic reversals |
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Magnetic stripes |
correspond to the normal and reverse polarities as recorded in oceanic crustal rocks |
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Geomagnetic reversals |
Reverse polarity and normal polarity |
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Lavas and sedimentary rocks of the ocean floor |
Evidences of geomagnetic reversals |
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Magnetic stripes |
correspond to the normal and reverse polarities as recorded in oceanic crustal rocks |
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Paleomagnetism |
Most convincing evidence in support of continental drift |
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Magnetism |
Most convincing proof for the plate tectonics theory |
