Phase diagrams that include specific temperatures and pressures, such as the kyanite, andalusite, sillimanite phase diagram, are drawn primarily on the basis ofGroup of answer choicesthe distribution of metamorphic minerals in the fielddirect evidence that the minerals in the rocks formed at elevated temperatures and pressuresobserved plastic deformation of mineralsevidence collected from laboratory experimentsNone of the above are used in the construction of phase diagrams.
Question
Phase diagrams that include specific temperatures and pressures, such as the kyanite, andalusite, sillimanite phase diagram, are drawn primarily on the basis ofGroup of answer choicesthe distribution of metamorphic minerals in the fielddirect evidence that the minerals in the rocks formed at elevated temperatures and pressuresobserved plastic deformation of mineralsevidence collected from laboratory experimentsNone of the above are used in the construction of phase diagrams.
Solution
The phase diagrams that include specific temperatures and pressures, such as the kyanite, andalusite, sillimanite phase diagram, are primarily drawn based on the evidence collected from laboratory experiments.
In these experiments, scientists recreate the conditions of temperature and pressure under which different minerals form and transform. They then observe and record at what specific temperatures and pressures these transformations occur. This data is then used to construct the phase diagrams.
So, the correct answer is "evidence collected from laboratory experiments".
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