লক্ষ্য করুন: এই এন্ট্রির অনুবাদ বর্তমানে মান পর্যালোচনার অধীনে রয়েছে, তাই কিছু বিষয়বস্তু সাময়িকভাবে শুধুমাত্র ইংরেজিতে প্রদর্শিত হচ্ছে।
এই এন্ট্রিটি এখনও আপনার ভাষায় অনুবাদ করা হয়নি, তাই নিচে মূল লেখাটি দেখানো হচ্ছে।
phaneritic
This term is a specialized geological descriptor used primarily in petrology to categorize igneous rocks. It describes a texture where the mineral grains are visible to the naked eye, which serves as a diagnostic indicator that the magma cooled slowly deep underground (intrusive), allowing crystals ample time to grow.
It stands in direct contrast to aphanitic texture, where crystals are too small to be seen without magnification. Because it is a technical scientific term, it is almost exclusively found in academic papers, geological surveys, and textbooks rather than in general conversation.
Meanings
Examples
Granite is a classic example of a phaneritic rock.
The sample exhibits a phaneritic texture with visible quartz and feldspar crystals.
Look at this specimen; it is clearly phaneritic because you can see the grains without a lens.
Phaneritic rocks typically form from magma that cools slowly deep underground.
I wonder if this outcrop is phaneritic or if it requires a microscope to identify the minerals.
The geologist noted that the coarse phaneritic structure indicated a plutonic origin.
The phaneritic nature of the gabbro makes it easy to distinguish from basalt.
Slow cooling allows for the development of a phaneritic texture.
Slow cooling allows for the development of a phaneritic texture.