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।
protolith
This term is used exclusively within the specialized field of geology and petrology. It describes the precursor material of a metamorphic rock, serving as the starting point for analyzing the chemical and structural changes that occur during metamorphism.
Because it refers to a specific geological entity, it is used in a technical, descriptive register. It is rarely encountered outside of academic papers, textbooks, or professional geological surveys.
Meanings
Examples
The limestone served as the protolith for the marble found in the quarry.
What was the original protolith of this schist?
Identifying the protolith is essential for understanding the regional metamorphic grade.
Identifying the protolith is essential for understanding the regional metamorphic grade.
I wonder if the protolith was an igneous rock or a sedimentary one.
The chemical composition of the metamorphic rock remains similar to that of its protolith.
Shale is a common protolith for slate and phyllite.
The intense heat and pressure completely altered the protolith.
We need to determine the protolith before we can map the tectonic history of this area.