Metamorphic Rock Identification Table 3. Metamorphic Rock Identification Rock Fo
ID: 286175 • Letter: M
Question
Metamorphic Rock Identification
Table 3. Metamorphic Rock Identification Rock Foliated Composition Rock Name rotolith Sample (Yes/No Grain Size Other Textural Features 1. How did you determine the compositions of sample N and sample Q? 2. Where might you find a rock like sample M being formed on Earth today? 3. Sample R is highly desired in the energy industry because it is the most "clean" variety. Using your knowledge of metamorphic processes, how do you think this rock becomes so "clean" compared to its protolitb?Explanation / Answer
Answer
1. The composition of N and Q determined based on their microscopic and macroscpic properties.
2. Sample M formed where Dynamic metamorphism of shale
Other textural
Features
Rock
Name
Rock sample Foliated Grain sizeOther textural
Features
CompositionRock
Name
Protoliths M yes fine cleavage very fine grained mixture of micas and chlorites some quartz & feldspars Slate Shale N yes fine Foliated chlorites Muscovites quartz Phylites Dynamothermal metamorphism of shale O yes coarse schistocity Quartz and mica of mica schist schist Granite regional metamorphism P Non Foliated Coarse Gneissos Quartz Feldspars lights band and feomagnisium Dark band Gneiss Granite Q Non Foliated Coarse Granulose Quartz Quartzite Sandstone R None Foliated medium to coarse Granulose Calcite Marble Limestone Dolomite