Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Geology Test 1

Terms

QuestionAnswer
A substance that cannot be broken down into other substances by ordinary chemical methods is an _______ element
The subatomic particle that contributes mass and a single positive electrical charge is the _______ proton
Atoms of an element containing different numbers of neutrons but the same number of protons are called _______ isotopes
Atoms with either a positive or negative electrical charge are called _______ ions
The bonding between Cl and Na in halite is _______ ionic
_______ is not true of a single silicon-oxygen tetrahedron The formula is SiO4
_______ is not a type of silicate structure Pentagonal
_______ is not a silicate Calcite
On Mohs' hardness scale, ordinary window glass has a hardness of about _______ 5-6
The ability of a mineral to break along preferred directions is called _______ Cleavage
Striations are associated with _______ Plagioclase
Glass is ________ atoms randomly arranged
Crystalline substances are always _______ made of repeating patterns of atoms
Physical disintegration of rock into smaller pieces is called _______ mechanical weathering
The decomposition of rocks from exposure to water and atmospheric gases is called _______ chemical weathering
_______ is not a type of mechanical weathering Oxidation
The single most effective agent of chemical weathering at Earth's surface is _______ carbon dioxide CO2
The most common end product of the chemical weathering of quartz is _______ quartz does not usually weather chemically
Soil with approximately equal amounts of sand, silt and clay along with a generous amount of organic matter is called _______ loam
_______ can be distinguished from one another by appearance and chemical composition, have transitional rather than sharp boundaries, and are classified by letters ABCE&O Soil horizons*
The soil horizon containing only organic material is the _______ O Horizon
Hardpan forms in the _______ B Horizon
Particles of sediment from 1/16-2mm in diameter are of _______ size sand
The grinding away of sharp edges and corners of rock fragments during transportation is _______ Rounding*
Compaction and cementation are two common processes of _______ lithification
_______ is not a chemical or organic sedimentary rock shale
The major difference between breccia and conglomerate is _______ rounding of the grain
_______ is not a type of sandstone coal
Shale differs from mudstone in that _______ shale is visibly layered and fissile; mudstone is massive and blocky
The chemical element found in dolomite NOT found in limestone is __ Mg
In a graded bed, the particle size _______ decreases upward
A body or rock of considerable thickness with characteristics that distinguish it from adjacent rock units is called a _______ formation
If seal level drops or the land rises, _______ is likely to occur. a transgression
Thick accumulations of graywacke and volcanic sediments can indicate an ancient _______ convergent boundary
A sedimentary rock made of fragments of preexisting rocks is _______ clastic
Clues to the nature of the source area of sediment can be found in _______ sedimentary structures
Plate tectonics is a result of Earth's internal heat engine, powered by _______ heat flowing from Earth's interior outward
A typical rate of plate motion is _______ 1-10 centimeters per year
Volcanic island arcs are associated with _______ ocean-ocean convergence
The division of geology concerned with Earth materials, changes in the surface and interior of the Earth, and the dynamic forces that cause those changes is _______ physical geology
Earthquakes, volcanoes, mudflows, floods, wave erosion at coastlines, and landslides are _______ geologic hazards*
The largest zone of Earth's interior by volume is the _______ mantle
Oceanic and continental crust differ in _______ composition, density, and thickness
The forces generated inside Earth that cause deformation of rock as well as vertical and horizontal movement of portions of Earth's crust are called _______ tectonic forces
Plate tectonics is a _______ theory
The three plate boundaries are _______, _______, and ________. divergent, transform, and convergent*
The lithosphere is _______ the crust and uppermost mantle
Erosion is a result of Earth's external heat engine, powered by gravity?
_______ is NOT true of minerals most minerals are organic*
Rocks are _______ a collection of one or more minerals
True or False: Minerals are stable as long as they stay in the pressure and temperature environment where they originally formed True
Minerals with the same chemical make-up, but different arrangements of atoms are called _______ polymorphs
The chemical formula for the mineral jadeite (a source of jade) is Na(Al,Fe)Si2O6. The elements in parenthesis indicate that __________ Al and Fe can substitute for one another in the mineral
True or False: The "salt" in the ocean is really sodium ions and chlorine ions. True
When the electric charge on the water molecule is unevenly distributed, it means _______ we say that water is polar
When a rock like granite is exposed at Earth's surface, it expands and cracks because it is no longer in ________ equilibrium
The most common end product of the chemical weathering of feldspar is _______ clay minerals
True or False: Rocks expand when they are heated and contract when they are cooled. True
Created by: Ldflores89