porphyroblastic
/ˌpɔːfɪrəʊˈblæstɪk/adjective
उच्चारण पॉर्फ़िरोब्लैस्टिक
पॉर्फिरोब्लास्टिक (कायांतरित चट्टान में बारीक कणों के बीच बड़े क्रिस्टलों वाला)
Advanced wordPYP · asked 1 time
Asked in previous papers
as spelling
- 1
[usually before noun] technical
(in geology, of a metamorphic rock) containing large crystals that have grown inside a mass of much smaller grains while the rock was being changed by heat and pressure
पॉर्फिरोब्लास्टिक (कायांतरित चट्टान में बारीक कणों के बीच बड़े क्रिस्टलों वाला)
- The schist has a porphyroblastic texture, with large garnet crystals set in fine mica.
- porphyroblastic rocks
- The geologist pointed to the porphyroblastic crystals visible in the rock sample.
+ 2 more examples
- A porphyroblastic texture shows that the crystals grew during metamorphism.
- The students examined porphyroblastic schist under the microscope in the laboratory.
◇Word family
?Which word?
Do not confuse porphyroblastic (large crystals that grew in a metamorphic rock) and porphyritic (large crystals in an igneous rock that formed as the magma cooled).
Porphyroblastic (कायांतरित चट्टान में विकसित हुए बड़े क्रिस्टल) और porphyritic (आग्नेय चट्टान में मैग्मा के ठंडा होने के दौरान बने बड़े क्रिस्टल) में भ्रमित न हों।