Passage V

The mineral sets (groups of two or more minerals) in a rock can provide clues to the pressure and temperature conditions under which the rock was formed. The figure shows the pressure, in kilobars (kb), and temperature relationships of six minerals (A, B, C, D, E, and F). As temperature and/or pressure changes, one mineral may react to form another. A given mineral is present only along its respective line and in the field on one side of the line.

24. According to the figure, which of the statements below would be true of the formation conditions of a rock containing Minerals B, D, and F?

I. The temperature was above 250℃.

II. The pressure was above 4 kb.

III. The temperature was lower than that of a rock containing Minerals A, D, and F.

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation

The area where BDF is produced is in the upper right corner of the figure, the temperature is greater than 300, and the pressure is greater than 4.5kb