porphyritic उदाहरण वाक्य

उदाहरण वाक्य

1. The predominant igneous rock is porphyritic hornblende diorite.
2. Porphyritic dacites contain blocky highly zoned plagioclase phenocrysts and / or rounded corroded quartz phenocrysts.
3. Porphyritic rocks are formed when a column of rising magma is cooled in two stages.
4. Some are equigranular, others are porphyritic.
5. The dacites have a white porphyritic appearance.
6. The appearance of Lastarria lavas is porphyritic.
7. It has an aphanitic to porphyritic texture and is intermediate in composition between andesite and rhyolite.
8. However, porphyritic varieties do occur.
9. The lavas of Taftan are porphyritic.
10. This lava dome is formed by porphyritic andesite and has dimensions of at an altitude of.