17 ordering 4 points place the following rocks in order of formation from the lowest heat and pressure to…

17 ordering 4 points place the following rocks in order of formation from the lowest heat and pressure to the highest heat and pressure. note: the system does not give partial credit for this question; all answers must be ordered correctly to receive credit. lowest heat and pressure 1 slate 2 phyllite 3 gneiss 4 schist highest heat and pressure 18 multiple choice 3 points from the chart, which type of metamorphism seems to produce the coarsest crystals? regional contact 19 essay 5 points
Answer
Answer:
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- Slate, 2. Phyllite, 3. Schist, 4. Gneiss
- A. Regional
Explanation:
Step1: Understand metamorphic rock sequence
Metamorphic rocks change with increasing heat - pressure. Slate forms at low heat - pressure, phyllite at slightly higher, schist higher still, and gneiss at the highest among these.
Step2: Recall metamorphism types
Regional metamorphism occurs over large areas under high pressure and temperature gradients, often producing coarse - grained crystals. Contact metamorphism is mainly due to heat from an igneous intrusion and usually results in finer - grained crystals.