Match the type of mantled porphyroclasts in Group I with the corresponding figure in Group II.
Understand the Problem
The question is asking to match types of mantled porphyroclasts from Group I with the correct corresponding figures in Group II. This requires understanding mineralogy and the specific characteristics of the porphyroclasts referenced.
Answer
P-3, Q-4, R-1, S-2
P-3, Q-4, R-1, S-2
Answer for screen readers
P-3, Q-4, R-1, S-2
More Information
Mantled porphyroclasts (δ, σ, θ, and ɸ types) can be distinguished by the shapes and geometry of their wings or tails. δ-types have smoother, more symmetrical mantles, while σ-types show wedge-shaped recrystallized tails. θ and ɸ types have distinct geometries that can be visually matched with their descriptions.
Tips
A common mistake is to mix up the visual characteristics of the porphyroclast types. Carefully study each type's description and compare it with the figures.
Sources
- Porphyroclast systems as kinematic indicators - ScienceDirect.com - sciencedirect.com
- ALEX STREKEISEN-Porphyroclastic- - alexstrekeisen.it
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