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Metamorphic Minerals in Subduction Zones
Minéraux du métamorphisme en zone de subduction, Crystalline Omphacite/Garnet Eclogite Samples enable students to calculate metamorphic density shifts, supporting the synthesis of thermodynamic models in deep subduction cycles.
Visible Foliation and Porphyroblast Textures Support the application of structural geology principles through the analysis of deformation fabrics and mineral growth sequences.
High-Contrast Facies Indicators facilitate accurate student differentiation between varying degrees of dehydration and re-equilibration in the subducting slab.
$5.92
Quick Answer: This reference set of metamorphic minerals illustrates the high-pressure, low-temperature (HP-LT) rock transformations that occur in subduction zones, from blueschist through to eclogite facies.
Product Description
When oceanic crust is subducted beneath another tectonic plate, it experiences unusual metamorphic conditions: very high pressure combined with relatively low temperature, a combination not found in most other geological settings. This specimen set represents that distinctive metamorphic pathway, letting students trace how minerals and rock textures change as material moves deeper into a subduction zone, from blueschist facies rocks toward the denser, higher-pressure eclogite facies.
The set supports coursework on metamorphic petrology, plate tectonics, and subduction zone processes, giving students a hands-on reference for a metamorphic sequence that is otherwise difficult to visualise from diagrams alone.
Specimen Details
| Detail | Description |
|---|---|
| Product Type | Subduction-zone metamorphic mineral reference set |
| Metamorphic Facies Covered | Blueschist through eclogite facies (HP-LT sequence) |
| Subject Focus | Metamorphic petrology, subduction zone processes, plate tectonics |
| Recommended Level | Introductory university and advanced secondary geology |
| Storage | Labelled compartment tray to keep facies stages separated |
Applications
- Teaching high-pressure, low-temperature (HP-LT) metamorphism
- Illustrating the blueschist-to-eclogite metamorphic sequence
- Linking mineral transformation to plate tectonic subduction processes
- Supporting metamorphic petrology coursework at introductory university level
Care & Handling
Keep each specimen in its own labelled compartment so the metamorphic sequence stays clearly identifiable. Handle with clean, dry hands and store in a dry area to preserve mineral surfaces for examination.
Why Choose LabEquip
LabEquip supplies specialised rock and mineral sets built around real geological processes, including advanced metamorphic sequences like this one. Explore more specimens in our Educational Rock and Minerals category, learn more About Us, or Contact Us for institutional and bulk orders.
Frequently Asked Questions
1. What does this set demonstrate?
It demonstrates the high-pressure, low-temperature metamorphic sequence that occurs in subduction zones, from blueschist facies through to eclogite facies.
2. Why are subduction zones metamorphically distinctive?
Subducted oceanic crust experiences very high pressure combined with relatively low temperature, a combination rarely seen in other metamorphic settings, producing distinctive mineral assemblages.
3. What is the difference between blueschist and eclogite facies?
Blueschist facies forms at somewhat lower pressure and temperature than eclogite facies; as subduction continues and pressure increases, blueschist minerals can transform into the denser mineral assemblages characteristic of eclogite.
4. What level of course is this set suited to?
It suits introductory university and advanced secondary geology courses covering metamorphic petrology and plate tectonics.
5. How does this set relate to plate tectonics?
It directly links mineral transformation to the physical process of subduction, helping students connect plate tectonic theory with observable rock and mineral evidence.
6. How should this set be stored?
Store it in a labelled compartment tray so each metamorphic stage remains clearly identifiable and undamaged between classes.
Last Updated: September 2026
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