Structure and size of aphantic rock is________________?
Correct answer: B. Fine grained
- A. Course-grained like
- B. Fine grained
- C. Large-Glassy
- D. Phenocryst
Explanation
Aphanitic rocks cool rapidly at or near the surface, leaving too little time for large crystals to form, so their texture is fine-grained. Phenocrysts are the larger crystals found in a porphyritic texture.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Soil Science
377 free Soil Science MCQs from Agriculture, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Agriculture questions like this
Agriculture is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Soil Science questions
Thickness of Dikes ranges from___________________?
Rocks having coarse bubble holes are called_______________________?
Attraction between similar particles is called____________________?
Felsic rocks consists of___________________?
Plutonic rocks are also called____________________?
How many different minerals deposits are found in Pakistan ?