Match each of the following rocks with a sedimentary environment in which it mig
ID: 234544 • Letter: M
Question
Match each of the following rocks with a sedimentary environment in which it might be found
_____ laminated shale
_____ cross-bedded arkose
_____ oolitic limestone
_____ porous, fossiliferous limestone
_____ cross-bedded sandstone w/ wood
_____ laminated gypsum
_____ coal
_____ unsorted conglomerate
_____ coquina
_____ stromatolite
A. playa lake
B. carbonate shelf C. beach
D. abyssal plain E. reef
F. delta
G. tidal flat
H. glacial
I. swamp
J. alluvial fan
1.Which type of characteristics might be the most useful for distinguishing between marine sediments and lacustrine sediments: cross-bedding, fossils, or grain size? Explain your answer.
2.Which sedimentary structure indicates than an environment is periodically dry? Give an example of an environment that would periodically alternate between wet and dry.
3.List three high energy environments.
4.List three high energy sedimentary structures. (Remember that sedimentary structures include more than just different kinds of bedding!)
5.List three low energy environments.
6.List three low energy sedimentary structures.
7.Add an arrow above the sedimentary structure below to indicate the direction of flow.
8.What is the name of this type of bedding?
9.In what kind of environment would you find this kind of bedding on a large scale?
10.In what kind(s) of environment(s) would you find this kind of bedding on a small scale?
11.In the figure below, what kind of bedding is illustrated?
12.In what kind of environment would you find this kind of bedding?
13.What is the name of the process that creates this kind of bedding?
14.What is the name for the kind of rock in which we find this bedding?
Explanation / Answer
laminated shale = abyssal plain
cross-bedded arkose = delta
oolitic limestone = shelf
porous, fossiliferous limestone = reef
cross-bedded sandstone w/o wood = alluvial fan
laminated gypsum - playa lake
coal = swamp
unsorted conglomerate = glacial
coquina = beach
stromatolite = tidal flat
generally lacustrine sediments are devoid of fossils