Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
Sedimentary rocks
|
Rocks that form through lithification of accumulated mineral or organic matter at or near surface of solid Earth
|
|
Sedimentary rocks form at _______ pressure and _______ temperature.
|
low, low
|
|
Four types of sedimentary rocks are _________, _________, _________, and _________ .
|
clastic, organic, chemical, biochemical
|
|
________ rocks tend to be made of weathering-resistant minerals.
|
Clastic
|
|
_______ rocks can form as evaporites.
|
Chemical
|
|
______ rocks tend to form from ancient swampy environments.
|
Organic
|
|
The _______ series comes from the remains of plants.
|
coal
|
|
The decay of plant matter makes the water _________ .
|
acidic
|
|
The environment of peat is ______ ______ and ______-_______ .
|
fresh water, near-coastal
|
|
The 5 stages of clastic rock formation:
1 - ____________ 2 - ____________ 3 - ____________ 4 - ____________ 5 - ____________ |
weathering, erosion, transportation, deposition, lithification
|
|
Weathering is the _______ ________ of the pieces and erosion is the _______ ________ of the pieces.
|
breaking up, sweeping away
|
|
Erosion is the _______ ________ ________ of the pieces and transportation is the _______ ________ ________ of the pieces
|
immediate sweeping away, long distance travel
|
|
The three stages of lithification are:
1 - ____________ 2 - ____________ 3 - ____________ |
burial, compaction, cementation
|
|
Cementation involves ________ ________ .
|
ground water
|
|
________ cement gives a red/orange color.
|
Hematite
|
|
Grain size ---> ________ ________
|
depositional energy
|
|
Wentworth scale
|
a table that shows particle size classification for detrital rocks
|
|
Conglomerate
|
- high energy environment
- some transportation - gravel sized grain held together by finer matrix |
|
Breccia
|
- no transportation
- angular gravel sized grain held together by finer matrix |
|
Sandstone
|
- moderate depositional energy
|
|
Arkosic rocks
|
- cold and dry environment
- abundant potassium feldspar (at least 25%) derived from the physical weathering of granite |
|
Shale and Mudstone
|
- quiet water or windblown environment with plant matter
|
|
Shale tends to _____ _____ _____ but mudstone is more ______ .
|
split into sheets, massive
|
|
What test should you perform to check to see if a rock is a limestone?
|
Acid test
|
|
Oolites form in _______, ________ ________ with _______ ______ ______ .
|
warm shallow seas, gentle wave action
|
|
Cemented looks like a ______ ______ and interlocking looks like a ______ ______ .
|
rice crispy, jigsaw puzzle
|
|
Asymmetric ripples implies that the environment had a ________ .
|
current
|
|
Symmetric ripples implies that the environment had ______ .
|
tides
|
|
Cross bedding dips in the direction of the environment's _________ .
|
current
|