The marble rind surrounding the granite pluton must be younger than the limestone according to the principle of ____________.

A)superposition
B)baked contacts
C)original horizontality
D)original continuity

Question

The marble rind surrounding the granite pluton must be younger than the limestone according to the principle of ____________.

A)superposition 
B)baked contacts 
C)original horizontality 
D)original continuity

Quizplus · Accepted Answer

The principle of baked contacts states that an igneous intrusion (such as a granite pluton) that moves through a pre-existing rock layer (such as limestone) will cause the surrounding rock to be altered or "baked" by the heat. In this case, the marble rind surrounding the granite pluton suggests that the limestone was already there when the pluton intruded, and therefore the marble rind must be younger than the limestone.

The Marble Rind Surrounding the Granite Pluton Must Be Younger