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।
felsic
This term is a technical portmanteau derived from feldspar and silica, used almost exclusively within the fields of geology and petrology. It describes a specific chemical composition of igneous rocks, which typically results in a light-colored appearance, such as that of granite or rhyolite.
In a professional geological context, "felsic" is used as a precise descriptor of mineralogy rather than a general description of color. While felsic rocks are usually light, the term specifically refers to the high concentration of silica and aluminum rather than the visual hue itself.
Meanings
Examples
The continental crust is predominantly composed of felsic rocks.
The continental crust is predominantly composed of felsic rocks.
Look at this sample; the light color indicates it is a felsic igneous rock.
Felsic magma is generally more viscous than mafic magma.
I wonder if this outcrop is actually felsic or just weathered.
Rhyolite is a common example of a volcanic felsic rock.
The eruption was explosive because the magma was highly felsic.
Is this granite considered a felsic plutonic rock?
The geologist noted a distinct transition from mafic to felsic layers.