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8 December, 06:11

A fault (F) breaks three layers of sedimentary rock (S). An igneous intrusion (I1) has broken through the bottommost layer of rock. A second igneous intrusion (I2) has moved up the fault and pooled on top of the uppermost layer of rock. Which event would be considered the youngest?

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  1. 8 December, 06:16
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    Answer: Option B - - The intrusion of I1 or I2 is the youngest event. Without more information, we cannot know which igneous rock is youngest.

    Option A, option C and option D are wrong
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