GEOLOGY EXAM 1 : LSU GEOL 1001 Test Questions and Answers Rated A
1. abundant elements oxygen, silicon, aluminum, iron
of Earth's Crust
2. abundant elements oxygen, magnesium, silicon, iron
of Earth's Mantle
3. 3 rock types igneous, sedimentary, metamorphic
4. covalent bond when two atoms share electrons
5. Ionic Bond forms because of the attraction of two oppositely charged ions such as when
one atom loans one or more electrons
6. Metallic bond electrons shared widely by many atoms and holds the material together in a
non rigid way
7. Intermolecular Force several types of weak bonds can attract a molecule (a combo of atoms) to
another molecule
8. Curie Temperature temperature at which certain magnetic materials undergo a sharp change in
their magnetic properties
9. Paleomagnetism The record of past changes in earth's magnetic field, as recorded in in
rocks and other materials. It's strong enough to orient magnetism in certain
materials, especially in iron rich mineral magnetite, in the direction of the
prevailing magnetic field. Preserved in volcanic rocks, intrusive rocks, and
some sedimentary rocks
10. Magnetic North Earths magnetic field flows from south to north causing the magnetic ends of
a compass needle to point toward the north. (this orientation is called normal
polarity)
11. Rock Magnetism A few iron bearing minerals naturally magnetic.
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, GEOLOGY EXAM 1 : LSU GEOL 1001 Test Questions and Answers Rated A
12. Plate Tectonics The continual motion, creation, and destruction of the earth's active surface
(crust and upper mantle = lithosphere)
13. Continental Drift Alfred Wegnener argued that the continents were once joined together but
later drifted apart
14. Evidence for conti- - the continents piece perfectly together
nental drift (PANGEA) -they have found similar fossils and rocks on continents that were believed
to once fit together
15. divergent plate two plates move apart relative to one another. in most cases, magma fills the
boundary space between the plates
EXAMPLE : great Rift Valley in east Africa, mid ocean ridges
16. Convergent plate two plates move toward one another. A typical result is that one plate slides
boundary under the other
17. Transform Plate two plates move horizontally past one another
boundary
18. Mantle Convection the asthenosphere (mantle beneath the lithosphere that is solid but hotter
than the rock above it ) although a solid is capable fo flow - it experiences
convection where hot material rises due to its low density while cold material
sinks because it is more dense
19. slab pull subjecting oceanic lithosphere crust and uppermost mantle is denser than
asthenosphere, so gravity pulls the plate downward into the asthenosphere
20. Ridge Push the mid ocean ridge is higher than the ocean floor away from the ridge
b/c lithosphere near the ridge is thinner and hotter. gravity causes the
plate to side away from the topographically high ridge and push the plate
outward-ridge push
21. Hot Spots
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1. abundant elements oxygen, silicon, aluminum, iron
of Earth's Crust
2. abundant elements oxygen, magnesium, silicon, iron
of Earth's Mantle
3. 3 rock types igneous, sedimentary, metamorphic
4. covalent bond when two atoms share electrons
5. Ionic Bond forms because of the attraction of two oppositely charged ions such as when
one atom loans one or more electrons
6. Metallic bond electrons shared widely by many atoms and holds the material together in a
non rigid way
7. Intermolecular Force several types of weak bonds can attract a molecule (a combo of atoms) to
another molecule
8. Curie Temperature temperature at which certain magnetic materials undergo a sharp change in
their magnetic properties
9. Paleomagnetism The record of past changes in earth's magnetic field, as recorded in in
rocks and other materials. It's strong enough to orient magnetism in certain
materials, especially in iron rich mineral magnetite, in the direction of the
prevailing magnetic field. Preserved in volcanic rocks, intrusive rocks, and
some sedimentary rocks
10. Magnetic North Earths magnetic field flows from south to north causing the magnetic ends of
a compass needle to point toward the north. (this orientation is called normal
polarity)
11. Rock Magnetism A few iron bearing minerals naturally magnetic.
1/5
, GEOLOGY EXAM 1 : LSU GEOL 1001 Test Questions and Answers Rated A
12. Plate Tectonics The continual motion, creation, and destruction of the earth's active surface
(crust and upper mantle = lithosphere)
13. Continental Drift Alfred Wegnener argued that the continents were once joined together but
later drifted apart
14. Evidence for conti- - the continents piece perfectly together
nental drift (PANGEA) -they have found similar fossils and rocks on continents that were believed
to once fit together
15. divergent plate two plates move apart relative to one another. in most cases, magma fills the
boundary space between the plates
EXAMPLE : great Rift Valley in east Africa, mid ocean ridges
16. Convergent plate two plates move toward one another. A typical result is that one plate slides
boundary under the other
17. Transform Plate two plates move horizontally past one another
boundary
18. Mantle Convection the asthenosphere (mantle beneath the lithosphere that is solid but hotter
than the rock above it ) although a solid is capable fo flow - it experiences
convection where hot material rises due to its low density while cold material
sinks because it is more dense
19. slab pull subjecting oceanic lithosphere crust and uppermost mantle is denser than
asthenosphere, so gravity pulls the plate downward into the asthenosphere
20. Ridge Push the mid ocean ridge is higher than the ocean floor away from the ridge
b/c lithosphere near the ridge is thinner and hotter. gravity causes the
plate to side away from the topographically high ridge and push the plate
outward-ridge push
21. Hot Spots
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