Which of the following is not a sedimentary structure?
A) Magma emplacement
B) Mud cracks
C) Ripple marks
D) Cross beds
Answers
Answered by
15
Hey mate !!!
Question :-
Which of the following is not a sedimentary structure?
Answer :-
A) Magma emplacement
Hope this helps ^_^
Answered by
3
Magma emplacement is not known to be a sedimentary structure. Under the pull of gravity, magma
migrates vertically which is known as emplacement.
Stopping takes place when blocks of wall rock material move downward through a pluton.
Stopping is an essential emplacement mechanism in a large variety of tectonic settings and has been widely used to explain discordant pluton contacts.
The most common signatures of stopping are sharp discordant contacts between plutons and wall rocks and a lack of ductile deformation of the wall rocks.
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