Upgrade to remove ads
EAPS 100 Exam 1
Terms in this set (39)
A tentative explanation that is tested to determine whether it is valid
A well-tested and widely accepted view that explains certain observable facts
A naturally occurring, inorganic crystalline material that has a unique chemical composition
Any one of numerous minerals that have the silicon-oxygen tetrahedron as their basic structure
A structure composed of four oxygen atoms surrounding a silicon atom that constitutes the basic building block f silicate minerals
A body of molten rock found at depth, including any dissolved gases and crystals
The disintegration and decomposition of rock at or near the surface of Earth
The changes in mineral composition and texture of a rock subjected to high temperatures and pressures within earth
1. Granitic (Felsic) Composition
2. Intermediate (Andesitic) Composition
3. Mafic (Basaltic) Composition
4. Ultramafic Composition
Granitic (Felsic) Composition
A composition group of igneous rocks in which the rock is made up almost entirely of light-colored silicates.
Intermediate (Andesitic) Composition
A composition group of igneous rocks, in which the rock contains at least 25 percent dark silicate minerals. The other dominant mineral is plagioclase feldspar
Mafic (Basaltic) Composition
A composition group of igneous rocks in which the rock contains substantial dark silicate minerals and calcium-rich plagioclase feldspar.
A compositional group igneous rocks in which the rock contains mostly olivine and pyroxene
A theory which originally proposed that the continents are rafted about. It has essentially been replaced by the plate tectonics theory
The condition that exists when the distribution of winds within given areas result in a net horizontal outflow of air from the region. In divergence at lower levels, the resulting deficit is compensated for by a downward movement of air from aloft; hence, areas of divergent winds are unfavorable to cloud formation and precipitation
The condition that exists when the distribution of winds within given area results in a net horizontal inflow of air into the area. Since convergence at lower levels is associated with an upward movement of air, areas of convergent winds are regions favorable to cloud formation and precipitation
Transform Plate Boundary (Transform Fault)
A major strike-slip fault that cuts through the lithosphere and accommodates motion between two plates
A linear zone along which continental lithosphere stretches and pulls apart. Its creation many mark the beginning of a new ocean basin
A region of Earth's crust along which divergence is taking place
A concentration of heat in the mantle that is capable of producing magma, which in turn extrudes onto Earth's surface. The intraplate volcanism that produced the Hawaiian islands is one example
The transfer of heat by the movement of a mass or substance. It can take place only in fluids.
Vibration of Earth produced by the rapid release of energy
A break in a rock mass along which movement has occurred
The total amount of energy released during an earthquake
A rapidly moving ocean wave generated by earthquake activity that is capable of inflicting heavy damage in coastal regions
The rigid outer layer of Earth, including the crust and upper mantle
A gaseous of the mantle situated below the lithosphere. This zone of weak material exists below a depth of about 100 kilometers and in some regions extends as deep as 700 kilometers. The rock within this zone is easily deformed.
The 2900-kilometer (1800 mile) thick layer of Earth located below the crust.
The innermost layer of Earth, based on composition. It is thought to be largely an iron-nickel alloy, with minor amounts of oxygen, silicon, and sulfur.
Rocks placed in their proper sequence or order. Relative dating determines only the chronological order of events
True age of a rock or fossil and tells scientists the number of years ago the rock layer formed
A principle of relative dating which uses the fact that in any underformed sequence of sedimentary rocks, each bed is older than the layers above and younger than the layers below
Layers of sediments generally deposited in a horizontal or nearly horizontal position
A principle of relative dating which states that a rock or fault is younger than any rock or fault through which it cuts
A surface that reprecents a break in the rock record, caused by eroision or nondepostion
A fossil that is associated with a particular span of geologic time
The spontaneous decay of certain unstable atomic nuclei
The time required for one-half of the atoms of a radioactive substance to decay
The procedure of calculating the absolute ages of rocks and minerals that contain radioactive isotopes
THIS SET IS OFTEN IN FOLDERS WITH...
Eaps 100 purdue test 1
EAPS 100 Purdue Exam 2
Purdue EAPS100 Final Study Flash Cards
YOU MIGHT ALSO LIKE...
GEOG ch 13
Chapter 9 - The Dynamic Planet (Key Terms)
APES Chapter 8 Vocab
OTHER SETS BY THIS CREATOR
mgmt 200 final exam
ols 252 final exam
econ 252 final exam
ols 252 exam 3
OTHER QUIZLET SETS
Chapters 1-3 The Nature Of Geology, Investigating…
Chapter 3, Section 1- Minerals