porphyritic in English

adjective
1
relating to or denoting a rock texture, typically found in volcanic rocks, containing distinct crystals or crystalline particles embedded in a fine-grained groundmass.
Coarser fractions additionally contain volcanic clasts of vesicular and porphyritic lava, tuff and pumice.

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Below are sample sentences containing the word "porphyritic" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "porphyritic", or refer to the context using the word "porphyritic" in the English Dictionary.

1. Porphyritic Andesite, plane polars Porphyritic Andesite, crossed polars

2. Campus Andesite from El Paso, TX Porphyritic Andesite Porphyritic Andesite from the summit of Mt

3. Basalts are often porphyritic and can contain mantle xenoliths

4. A third porphyritic granite is 465 million years ago.

5. There are diabase, basaltic, porphyritic, and other types of Amygdaloids

6. Kilimanjaro Porphyritic Andesite from the Crazy Mountains, MT Beartooth Andesite

7. With micro-porphyritic structure; Augitite with hyalopilitic ground- ,mass; melilite-basalt in both micro-porphyritic and granular forms; and ihaiiyne rocks of intersertal-glassy and granular structures

8. Andesite is an extrusive igneous rock that has a porphyritic texture

9. Andesite is an extrusive igneous volcanic rock of intermediate composition, with aphanitic to porphyritic texture

10. Alabastrine gypsum is a weak rock and coarse-sized porphyritic gypsum is classified as very weak

11. The rock is a porphyritic granite with early phenocrysts of alkali-feldspar and a crystalline matrix of granodioritic composition.

12. Hydrothermal metasomatic alteration occurs on a regional scale and has affected markedly more than half of the 732 analyzed, macroscopically fresh, porphyritic volcanic rocks.

13. A porphyritic mafic rock with a U-Pb zircon age of 150 Ma (Tithonian) has a crystallization Age coeval with marine strata overlying the salt

14. The term “amygdaloid” refers to the texture of the effusive rock regardless of its mineral composition. There are diabase, basaltic, porphyritic, and other types of Amygdaloids

15. The rock is gray-brown basic basalt, and predominantly composed of plagioclase and pyroxene and secondarily Cryptocrystalline with porphyritic structure. The phenocrysts are dominated by plagioclase and pyroxene minerals

16. The dacitic rocks associated with the porphyry copper-gold mineralization have porphyritic textures with phenocrysts of alkali feldspar, plagioclase, biotite, and very rare amphibole in a fine-grained feldspathic groundmass.

17. 50 alkali feldspars from a Variscan porphyritic granite and 27 from two country rocks of Caledonian and Variscan age respectively have been investigated for their bulk chemistries and their structural states.

18. Up to 10% cash back  · An Augitite is an undersaturated porphyritic volcanic rock consisting of phenocrysts of augite and iron ore, with or without biotite or hornblende, in a brown glassy (usually Na-rich) groundmass